utopia dc-inverter es series hvrn1/h(v)rns(e) - AB Klimatizace, s.r.o.

UTOPIA DC-INVERTER ES SERIES 

HVRN1/H(V)RNS(E) 

Technical Catalogue 

Outdoor Units: 2~10 HP 

Indoor Units Type: 

• 4-Way Cassette 

• 2-Way Cassette 

• Wall 

• Ceiling 

• In-the-Ceiling 

• Floor 

• Floor Concealed

Specifications in this manual are subject to change without notice in order that 

HITACHI may bring the latest innovations to their customers. 

Whilst every effort is made to ensure that all specifications are correct, printing errors 

are beyond Hitachi’s control; Hitachi cannot be held responsible for these errors.

Contents 

5 

TCGB0052 rev.1 - 07/2009 

C ontents 

Features and Benefits of ES 

General Data 

Dimensional Data 

Capacities and Selection Data 

Working Range 

Refrigerant Cycle 

Piping and Refrigerant Load 

Electrical Data 

Electrical Wiring 

Available Optional Functions 

Troubleshooting 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11

Contents 

Contents 

1. Benefits of DC INVERTER ES ................................................................................23 

1.1. Choice benefits ..................................................................................................................................... 24 

1.1.1. A wide range of choice .................................................................................................................................... 24 

1.1.2. Complete remote control range ....................................................................................................................... 26 

1.1.3. Flexibility of the system ................................................................................................................................... 30 

1.1.4. Availability of Hi-Tool Kit selection software .................................................................................................... 30 

1.2. Installation advantages ......................................................................................................................... 31 

1.2.1. Compact size .................................................................................................................................................. 31 

1.2.2. Easy to install and flexible units and pipes ...................................................................................................... 31 

1.2.3.Easy and flexible electrical installation ............................................................................................................. 33 

1.2.4. Easy and flexible control connection(Central Station, BMS Interface, CSNET-WEB) .................................... 34 

1.2.5. Flexible adaptation to the installation site ....................................................................................................... 34 

1.3. Start-up benefits ................................................................................................................................... 34 

1.3.1. Automatic start-up test .................................................................................................................................... 34 

1.3.2. Service check .................................................................................................................................................. 35 

1.4. Functional benefits ............................................................................................................................... 35 

1.4.1. Maximum efficiency ......................................................................................................................................... 35 

1.4.2. Silent compressor ........................................................................................................................................... 37 

1.4.3. Silent fan ......................................................................................................................................................... 37 

1.5. Maintenance benefits ........................................................................................................................... 38 

1.5.1. Availability of maintenance tools ..................................................................................................................... 38 

1.6. Main features of the units ..................................................................................................................... 39 

1.6.1. Indoor units ..................................................................................................................................................... 39 

1.6.2. Outdoor units ................................................................................................................................................... 50 

1.6.3. Complementary systems ................................................................................................................................. 55 

2. General data ............................................................................................................59 

2.1. General data for indoor units ................................................................................................................ 60 

2.1.1. RCI – 4-way cassette type .............................................................................................................................. 60 

2.1.2. RCIM – 4-way mini cassette type .................................................................................................................... 61 

2.1.3. RCD – 2-way cassette type ............................................................................................................................. 62 

2.1.4. RPC – Ceiling type .......................................................................................................................................... 63 

2.1.5. RPI – In-the-ceiling type .................................................................................................................................. 64 

2.1.6. RPIM – In-the-ceiling type ............................................................................................................................... 66 

2.1.7. RPK – Wall type ............................................................................................................................................. 67 

2.1.8. RPF and RPFI – Floor type and floor-concealed type .................................................................................... 68 

2.2. General data for Outdoor Units ............................................................................................................ 69 

2.2.1. RAS – Outdoor Units ....................................................................................................................................... 69 

2.3. Complementary systems ...................................................................................................................... 72 

2.3.1. KPI - Energy recovery ventilation units ........................................................................................................... 72 

2.3.2. Econofresh kit ................................................................................................................................................. 73 

2.4. Component data .................................................................................................................................. 73 

2.4.1. Fan and exchanger of indoor units .................................................................................................................. 73 

2.4.2. Fan and exchanger of outdoor units ............................................................................................................... 78 

2.4.3. Compressor ..................................................................................................................................................... 79 

7 

TCGB0052-rev.1-07/2009 

0

Contents 

Contents (Cont.) 

3. Dimensional Data ....................................................................................................81 

3.1. Indoor units ........................................................................................................................................... 82 

3.1.1. 4-way cassette type models ............................................................................................................................ 82 

3.1.2. 2-way cassette type models ............................................................................................................................ 84 

3.1.3. Ceiling-type models ......................................................................................................................................... 86 

3.1.4. Duct-type models ............................................................................................................................................ 90 

3.1.5. Wall-type models ............................................................................................................................................. 95 

3.1.6. Floor-type models ........................................................................................................................................... 98 

3.1.7. Floor-concealed models .................................................................................................................................. 99 

3.2. Outdoor units ...................................................................................................................................... 100 

3.3. Complementary units.......................................................................................................................... 103 

3.3.1. Total heat exchanger ..................................................................................................................................... 103 

3.3.2. Econofresh kit ............................................................................................................................................... 106 

4. Capacities and selection data ...............................................................................107 

4.1. UTOPIA DC INVERTER ES series system selection procedure ........................................................ 108 

4.1.1. Selection parameters .................................................................................................................................... 108 

4.1.2. Selection procedure ...................................................................................................................................... 108 

4.2. KPI system selection procedure ..........................................................................................................115 

4.2.1. Selection guide for KPI ...................................................................................................................................115 

4.2.2. Calculation of the heat exchanger efficiency ..................................................................................................118 

4.3. Selection procedure for the Econofresh system ..................................................................................119 

4.4. Combinability ...................................................................................................................................... 121 

4.5. Compatibilities .................................................................................................................................... 122 

4.6. Standard cooling and heating capacities ............................................................................................ 125 

4.7. Maximum cooling capacities of the outdoor units ............................................................................... 128 

4.8. Maximum heating capacities of the outdoor units .............................................................................. 129 

4.9. Correction factors ............................................................................................................................... 130 

4.9.1. Piping length correction factor ....................................................................................................................... 130 

4.9.2. Defrost correction factor ................................................................................................................................ 134 

4.10. Sensible heat factor (SHF) .................................................................................................................. 135 

4.11. Fan performance ................................................................................................................................ 136 

4.11.1. RPI(M)-(1.5~10.0)FSN2E .......................................................................................................................... 136 

4.11.2. KPI – Fan performance ............................................................................................................................... 138 

4.12. Temperature distribution diagrams ..................................................................................................... 140 

4.12.1. RCI – 4-way cassette type .......................................................................................................................... 140 

4.12.2. RCD – 2-way cassette type ......................................................................................................................... 143 

4.12.3. RPC – Ceiling type ...................................................................................................................................... 145 

4.12.4. RPK – Wall type .......................................................................................................................................... 146 

4.13. Sound data ......................................................................................................................................... 147 




4.13.4. RPI – In-the-ceiling type .............................................................................................................................. 153 

4.13.5. RPK – Wall type .......................................................................................................................................... 156 

8 

TCGB0052-rev.1-07/2009

Contents 


4.13.6. RPF – Floor type ......................................................................................................................................... 157 

4.13.7. RPFI – Floor concealed type ....................................................................................................................... 158 

4.13.8. KPI .............................................................................................................................................................. 159 

4.13.8. RAS – UTOPIA DC INVERTER ES outdoor units ....................................................................................... 161 

5. Working Range ......................................................................................................163 

5.1. Power supply ...................................................................................................................................... 164 

5.2. Temperature range ............................................................................................................................. 164 

6. Refrigerant cycle ...................................................................................................165 

6.1. Example of single combination ........................................................................................................... 166 

6.2. Example of twin combination .............................................................................................................. 167 

6.3. Example of triple combination ............................................................................................................ 168 

6.4. Example of quad combination ............................................................................................................ 169 

7. Piping and refrigerant charge ................................................................................171 

7.1. Refrigerant piping selection ................................................................................................................ 172 

7.1.1. Refrigerant piping range ................................................................................................................................ 172 

7.1.2. Refrigerant piping length by dip switch setting .............................................................................................. 173 

7.1.3. Selecting the refrigerant piping ..................................................................................................................... 174 

7.2. Multikits and distributors ..................................................................................................................... 175 

7.2.1. Multikits for twin installation ........................................................................................................................... 175 

7.2.3. Distribution method ....................................................................................................................................... 177 

7.2.3. Copper pipes and sizes ................................................................................................................................. 179 

7.3. Amount refrigerant charge .................................................................................................................. 181 

7.3.1. Additional refrigerant charge calculation (R410A) ......................................................................................... 181 

7.3.2. Simple example of refrigerant charge quantity calculation ........................................................................... 182 

7.4. Caution in case of refrigerant leakage ................................................................................................ 183 

7.4.1. Maximum permitted concentration of HFCs .................................................................................................. 183 

7.4.2. Calculation of refrigerant concentration ........................................................................................................ 183 

7.4.3. Countermeasure for refrigerant leakage ....................................................................................................... 184 

8. Electrical Data .......................................................................................................185 

8.1. Indoor units ......................................................................................................................................... 186 

8.2. Outdoor units ...................................................................................................................................... 187 

8.2.1. RAS-(2~3)HVRN1/HVRNS ........................................................................................................................... 187 

8.2.2. RAS-(4~6)HVRN(S)E .................................................................................................................................... 187 

8.2.3. RAS-(8/10)HRNSE ........................................................................................................................................ 188 

8.3. Complementary system – KPI ............................................................................................................... 189 

9. Electrical Wiring .....................................................................................................191 

9.1. General verification............................................................................................................................. 192 

9.2. Setting and function of DIP switches for outdoor units ....................................................................... 193 

9.2.1. RAS-(2~3)HVRN1/HVRNS(1)(S) .................................................................................................................. 193 

9.2.2. RAS-4~10H(V)RNSE .................................................................................................................................... 194 

9.3. Setting and function of DIP switches for indoor units ......................................................................... 196 

9.3.1. Indoor units ................................................................................................................................................... 196 

9 

TCGB0052-rev.1-07/2009 

0

Contents 


9.4. Setting of DIP switches for complementary systems and accessories ............................................... 198 

9.4.1. Complementary systems ............................................................................................................................... 198 

9.5. Common wiring ................................................................................................................................... 199 

9.5.1. Electrical wiring between indoor and outdoor units ....................................................................................... 199 

9.6. Wiring size .......................................................................................................................................... 200 

9.7. H-LINK II ............................................................................................................................................. 201 

9.7.1. Application ..................................................................................................................................................... 201 

9.7.2. Features ........................................................................................................................................................ 201 

9.7.3. Specifications ................................................................................................................................................ 201 

9.7.4. Setting DIP switches for single, double and triple systems ........................................................................... 202 

9.7.5. Examples of the system of connection between H-LINK and H-LINK II units ............................................... 203 

9.7.6. Examples of H-LINK system: ........................................................................................................................ 204 

9.8. PSC-5HR ............................................................................................................................................ 206 

9.8.1. Example of a system with PSC-5HR ............................................................................................................. 206 

9.8.2. Internal layout of the components. ................................................................................................................ 206 

10. Optional functions available ..................................................................................207 

10.1. Optional functions available for indoor units ....................................................................................... 208 

10.2. Optional functions available for outdoor units..................................................................................... 209 

10.3. Optional functions available for remote controllers............................................................................. 210 

11. Troubleshooting .....................................................................................................215 

11.1 Alarm code ......................................................................................................................................... 216 

10 

TCGB0052-rev.1-07/2009

¡ 

Unit code list 

NOTE: 

Contents 

MODEL CODIFICATION 

11 

Please check by model name your air conditioner type, its abbreviation and reference number in this technical 

catalogue. 

TCGB0052-rev.1-07/2009 

FSN(2)(E) INDOOR UNITS 

4-Way Cassette 4-Way Mini Cassette 2-Way Cassette Ceiling 

Unit Code Unit Code Unit Code Unit Code 

RCI-1.5FSN2E 7E400002 RCIM-1.5FSN2 60278013 RCD-1.5FSN2 60278030 

RCI-2.0FSN2E 7E400003 RCIM-2.0FSN2 60278014 RCD-2.0FSN2 60278031 RPC-2.0FSN2E 7E440003 

RCI-2.5FSN2E 7E400004 RCD-2.5FSN2 60278032 RPC-2.5FSN2E 7E440004 




RCI-6.0FSN2E 7E400009 RPC-6.0FSN2E 7E440009 

RCI RCIM RCD RPC 

Unit type 

(indoor unit) 

RCI(M) - RCD - 

1~ 

RCI-3.0 FSN (2) (E) 

RPC - RPI - RPK - 

RPF - RPF(I) Capacity (HP) 

2.0-2.5-3.0-4.0- 

5.0-6.0 

H-Link Set-free/ 

System Free 

R410A 

refrigerant 

Series 

E: Made in Europe 

-: Made in Japan 

0

Contents 

12 

TCGB0052-rev.1-07/2009 

FSN(2)(E/M) INDOOR UNITS 

Duct Wall Floor Enclosure Floor Concealed Enclosure 

Unit Code Unit Code Unit Code Unit Code Unit Code 

RPI-1.5FSN2E 7E420002 RPIM-1.5FSN2E 7E430002 RPK-1.5FSN2M 60277942 RPF-1.5FSN2E 7E450002 RPFI-1.5FSN2E 7E460002 

RPI-2.0FSN2E 7E420003 RPK-2.0FSN2M 60277943 RPF-2.0FSN2E 7E450003 RPFI-2.0FSN2E 7E460003 

RPI-2.5FSN2E 7E420004 RPK-2.5FSN2M 60277944 RPF-2.5FSN2E 7E450004 RPFI-2.5FSN2E 7E460004 

RPI-3.0FSN2E 7E420005 RPK-3.0FSN2M 60277945 

RPI-4.0FSN2E 7E420007 RPK-4.0FSN2M 60277946 

RPI-5.0FSN2E 7E420008 

RPI-6.0FSN2E 7E420009 

RPI-8.0FSN2E 7E420010 

RPI-10.0FSN2E 7E420011 

RPI RPIM RPK RPF RPFI 

1~ 

RPF-2.0 FSN (2) (E/M) 

Unit type (indoor unit) 

RCI - RCD - 

RPC - RPI - RPK - 

RPF - RPF(I) 

Capacity (HP) 

(1.5~10) 

R410A 

refrigerant 

H-Link Set-free/ 

System Free 


E: Made in Europe 

M: Made in Malaysia 

-: Made in Japan

Contents 

13 

TCGB0052-rev.1-07/2009 

OUTDOOR UNITS HVRN1 

Unit Code 

RAS-2HVRN1 60288093 

RAS-2.5HVRN1 60288094 

RAS-3HVRNS 60288101 

Unit type 

(outdoor unit) 

RAS 

1~ 

OUTDOOR UNITS HVRNSE 

Unit Code 

RAS-4HVRNSE 7E301007 



Unit type 


RAS 

RAS-2 HVRN1 

Heat 

Inverter 

Pump 

system 

Compressor 

Power (HP) Single 

2~3 Phase (1~) 

1~ 

RAS-6 HVRNSE 


Power (HP) 

4~6 

R410 

Refrigerant 

Inverter 

system 

Single 

Phase (1~) 

Heat 

Pump 


R410 

Refrigerant 

E: Made in 

Europe 

Eco&Small 

0

Contents 

14 

TCGB0052-rev.1-07/2009 

OUTDOOR UNITS HRNS 

Unit Code 

RAS-8HRNSE 7E314110 

RAS-10HRNSE 7E314111 

Unit type 


RAS 

3~ 

RAS-8HRNSE 


Power (HP) 

2~3 

Heat 

Pump 

R410 

Refrigerant 

Inverter 

system 

E:Made in Europe 

Eco&Small

Contents 

15 

TCGB0052-rev.1-07/2009 

ACCESSORY CODE LIST 

Name Description Code Figure 

PC-ART Remote control switch with timer 70510000 

PSC-A64S Central control 60291479 

PSC-A16RS Centralized ON/OFF controller 60291484 

PSC-A1T Programmable timer 60291482 

PC-LH3A Wireless remote control switchs 60291056 

PC-ARH Optional remote controller 60291486 

PC-ALH 

PC-ALHD 

Receiver kit 

(for RCI-FSN2E -on the panel-) 

Receiver kit 

(for RCD-FSN2· -on the panel-) 

60291464 

60291467 

0

Contents 


PC-ALHZ 

PC-ALHC 

16 

Receiver kit 

(for RCI, RCD, RPC, RPI, RPK, RPF(I) - 

(FSN2(E)) -on the wall-) 

Receiver kit 

(for RCIM-FSN2 -on the panel-) 

TCGB0052-rev.1-07/2009 

60291473 

PSC-5HR H-LINK relay 60291105 

PCC-1A Optional function connector 60199286 

PRC-10E1 2-pin extension cord 7E790211 




THM-R2AE Remote sensor (THM4) 7E799907 

60291476 Image not available

Contents 


HARC-BXE (A) 

HARC-BXE (B) 

HC-A64BNP 

HC-A32MB 

HC-A16KNX 

17 

Lonwork BMS Interface 

(7 inputs up to 6 units) 

(H-LINK compatible)* 

Lonwork BMS Interface 

(4 inputs up to 32 units) 

(H-LINK compatible)* 

Integration with installations 

with intelligent control 

(Building Management System) 

Gateway Interface 

to BAC NET BMS systems. 

Building Management System 

Gateway to MODBUS systems. 

Building Management System 

Gateway to KNX systems. 

TCGB0052-rev.1-07/2009 

60290874 

60290875 

60291569 

7E513200 

7E513300 

CSNET-WEB (v3) Control System 7E891938 

WEB SCREEN TS001 15-inch touch-screen display 7E891935 

PC-A1I0 Integration external devices 70519000 

HC-A160SMS SMS alarm warning device 7E519100 

* Max. 128 indoors 

* Max. 16 adress (outdoor unit) 

NEW 

NEW 

0

Contents 


DBS-26 Drain discharge connection 60299192 

P-N23WA 

P-N23WAM 

P-N23DWA 

P-N46DWA 

18 

Air panel 

for RCI-FSN2E 

Air panel 

for RCIM-FSN2 

Air panel 

for RCD-FSN2 

Air panel 

for RCD-FSN2 

TCGB0052-rev.1-07/2009 

70530000 

60197160 

60291574 

60291575 

B-23H4 Adapter for deodorant filter 60199790 

F-23L4-K Antibacteria filter 60199791 

F-23L4-D Deodorant filter 60199793 

F-46L4-D Deodorant filter 60199794

Contents 


PDF-23C3 Duct connection flange 60199795 

PDF-46C3 Duct connection flange 60199796 

OACI-232 Fresh-air intake kit 60199797 

PD-75 Fresh-air intake kit 60199798 

PI-23LS5 3-way outlet parts 60199799 

TKCI-232 T-duct connecting kit 60199801 

TE-03N Branch pipe 70800007 



19 

TCGB0052-rev.1-07/2009 

0

Contents 




TRE-06N Branch pipe 70800005 

TRE-810N Branch pipe 70800010 

AG-335A 

20 

Air outlet diffuser 

(one for each fan) 

TCGB0052-rev.1-07/2009 

60291431 

WSP-335A Wind guard 60291432 

ASG-NP335F 

ASG-NP335B 

Snow guard 


Snow guard 


60291433 

60291434 

ASG-NP335L Snow guard 60291435 

HR-500 

70550101 

HR-800 70550102 

Heat exchanger for KPI 

HR-1000 70550103 

(heat recovery) 

HR-1500 70550104 

HR-2000 70550105 

images not available

Traditional DC 

INVERTER series 

 

System description 


DC INVERTER ES 

RAS-5HVRNSE 

RAS-5HVRNE 

The ES units are much more compact 

and lighter than the traditional model. 

New RAS-8/10HRNSE 

New PC-ART remote control 

21 

¡ 

− 

− 

− 

− 

− 

− 

¡ 

TCGB0052-rev.1-07/2009 

Introduction 

New series DC INVERTER ES 

HITACHI presents the new DC INVERTER ES range, which replaces the 

H(V)RNE series. 

ES series uses Inverter technology which allows the set temperature to be 

reached while optimizing electricity consumption and bringing down CO2 emissions. 

With the same quality and design parameters, HITACHI has developed units that 

are more compact and lighter than the previous models. 

This series is compatible with HITACHI's SYSTEM FREE system, eliminating the 

need to duplicate indoor unit models and thus reducing the need for stock. 

For this new ES series the new H-LINK II communication protocol has been 

developed. This allows up to 160 indoor units and 64 outdoor units to be 

connected for a same H-LINK II installation, and is compatible with the rest of the 

HITACHI range. 

True to its commitment to the environment, HITACHI has designed the new ES 

series in compliance with all applicable European directives and regulations 

(WEEE, RoHS,Green Dot, F-Gas, ...) and has opted to use the R410A refrigerant 

which does not damage the ozone layer (ODP=0). 

New features 

NEW 

− 

− 

− 

− 

− 

− 

− 

− 

ES range: 

− single-phase system: 2, 2.5, 3, 4, 5 and 6 HP 

− new three phase system: 8 and 10 HP 

RCI/RCIM/RCD/RPC/RPI(M)/RPC/RPK/RPF(I) indoor units 

with H-LINK II and 7 mm exchanger 

New KPI units with airflow from 500 m 

3 /h to 3000 m 3 /h 

PC-ART, PSC-A64S, and PSC-A16RS remote controls 

New gateways to BAC-NET (HC-A64BNP) and MODBUS 

(HC-A32MB) building management systems. 

New alarm reporting through SMS to mobile (HC-A160SMS) 

Central control for external fan and air handling unit from 

CSNET WEB (PC-A1IO). 

Building Layout view from CSNET WEB

System description 

22 

¡ 

− 

− 

TCGB0052-rev.1-07/2009 

Environmentally-friendly 

They use the R410A refrigerant. 

The Hitachi ES units are environmentally-friendly because they use the 

R410A refrigerant, and the RoHS and green dot regulations are applied in 

their assembly process, proving HITACHI's environmental awareness and 

respect. 

R410A is totally environmentally-friendly since it does not contain any 

substances that damage the ozone layer: ODP (ozone depleting product) =0. 

Refrigerant 

High energy efficiency 

HITACHI's ES units are very efficient and allow significant energy savings 

compared with conventional systems. This energy efficiency means less 

production of CO , which causes the greenhouse effect. 

2

Benefits of DC Inverter 

23 

TCGB0052-rev.1-07/2009 

1. Benefits of DC INVERTER ES 

This chapter describes the features and benefits of the new UTOPIA DC INVERTER ES 

series. The system's flexibility and modularity offer you the complete solution for your air 

conditioning requirements. 

Contents 

1. Benefits of DC INVERTER ES ............................................................23 

1.1. Choice benefits .............................................................................................................24 

1.1.1. A wide range of choice .........................................................................................................24 

1.1.2. Complete remote control range ............................................................................................26 

1.1.3. Flexibility of the system ........................................................................................................30 

1.1.4. Availability of Hi-Tool Kit selection software .........................................................................30 

1.2. Installation advantages .................................................................................................31 

1.2.1. Compact size .......................................................................................................................31 

1.2.2. Easy to install and flexible units and pipes ...........................................................................31 

1.2.3.Easy and flexible electrical installation ..................................................................................33 

1.2.4. Easy and flexible control connection(Central Station, BMS Interface, CSNET-WEB) .........34 

1.2.5. Flexible adaptation to the installation site ............................................................................34 

1.3. Start-up benefits ...........................................................................................................34 

1.3.1. Automatic start-up test .........................................................................................................34 

1.3.2. Service check .......................................................................................................................35 

1.4. Functional benefits .......................................................................................................35 

1.4.1. Maximum efficiency ..............................................................................................................35 

1.4.2. Silent compressor ................................................................................................................37 

1.4.3. Silent fan ..............................................................................................................................37 

1.5. Maintenance benefits ...................................................................................................38 

1.5.1. Availability of maintenance tools ..........................................................................................38 

1.6. Main features of the units .............................................................................................39 

1.6.1. Indoor units ..........................................................................................................................39 

1.6.2. Outdoor units ........................................................................................................................50 

1.6.3. Complementary systems ......................................................................................................55 

1


Choice benefits: 

24 

1.1. Choice benefits 

1.1.1. A wide range of choice 

¡ Outdoor units 

TCGB0052-rev.1-07/2009 

- Much lighter than earlier models. 

- Compact, with a careful design that has greatly reduced volume. 

HVRN1/HVRNS 

series outdoor 

units 

RAS-HVRN(1)(S) 1~ 

HVRNSE series 

outdoor units 

RAS-HVRNS(E) 1~ 

RAS-HRNSE 3~ 

HRNS series 

outdoor units 

Capacity 

(HP) 

2 2.5 3 

Capacity 

(HP) 

4 5 6 

Capacity 

(HP) 

8 10

- 



+ 

- + 

Unit of constant capacity 

Unit whose capacity can be 

adjusted to a higher limit via the 

DIP switch. 


adjusted to a lower limit via the 

DIP switch. 


adjusted to a higher or lower limit 

via the DIP switch. 

Capacity available with the DIP 

switch setting. 

NOTE: 

For more information see 

chapter 9 on electrical 

wiring. 

25 

¡ Indoor units 

The HITACHI indoor units have the following features: 

− More efficient, use of a 7mm copper pipe exchanger. 

− Flexible capacity. 

System Free 

Cassette 

Floor 

Duct 

Duct for hotels 

Wall 

Ceiling 

TCGB0052-rev.1-07/2009 

Indoor units 

4-way 

2-way 

With casing 

Without casing 

low 

mini 

Capacity (HP) 

1,5 1,8 2 2,3 2,5 3 4 5 6 8 10 

+ 

- - + 

- 

+ - - + 

- - + 

- - 

- - + 

+ - - + 

+ - - + 

1



KPI 

Econofresh 

26 

¡ 

A wide range of accessories 

All the units have a large set of accessories that facilitate installation, operation and 

maintenance. 

These accessories are designed to improve and adapt the unit to the type of 

installation the system needs, always within the parameters of quality that the system 

requires. 

These accessories include: 

- Remote control switches 

- Panels 

- Filters 

- Multikits 

¡ Wide range of complementary systems 

The complementary systems have been designed as elements attached to the 

installation. They improve its performance in terms of power consumption and the 

quality of the conditioned air. 

KPI 

Energy recovery unit with two choice options, depending on the installation 

requirements: 

- Heat recovery units, which recover energy through the temperature. 

- Energy recovery units, which recover the energy through temperature and 

humidity. 

3 3 

- Wide range of capacities from 500m /h to 3,000 m /h. 

Econofresh 

Air renewal unit that also permits a saving in energy. Connected to the 

RPI-5.0FSN2E unit. Allows different operating modes depending on the type of 

installation. 

1.1.2. Complete remote control range 

HITACHI has three different remote control systems that can be used with the DC 

INVERTER outdoor units. 

TCGB0052-rev.1-07/2009 

- Individual control systems 

- Centralized control systems 

- Computer control systems 

HITACHI also has interface equipment to integrate its machines in installations with 

intelligent control or BMS (Building Management System) .



PC-ART 

Wall-mounted remote 

control switch with timer 

PC-LH3A 

Wireless remote control 

switch 

PC-ARH 

Basic wired remote 

control switch 

PSC-5A1TE 

Timer 

27 

¡ 

TCGB0052-rev.1-07/2009 

Individual control systems 

PC-ART 

Remote control switch with timer: 

- LCD display. 

- 4 timer settings per week. 

- Optional functions like locking, energy saving, and intelligent room 

temperature maintenance. 

- Automatic testing for problem-solving that provides information in real time 

with an alarm code. 

- Access to all function settings for the indoor units 

- Thermostat function available. 

- Details of all settings are given on screen, facilitating system functionality 

checking. 

- If there are problems with the power supply the backup functions keep the 

timer working. 

- Indoor unit control groups (from 1 to 16 units in each group). 

PC-LH3A 

A wireless remote control switch that removes the need for wiring and 

provides simple one-touch operation. Enables two or more units to be 

controlled simultaneously. 

PC-ARH 

Smaller remote control than conventional remote controls. Its main features 

are temperature setting and operating mode setting. Its user-friendliness 

makes it ideal for facilities such as hotels. 

Two remote control switches or a group control (for a maximum of 16 units) 

can be used in a similar way to the standard remote control switch. 

When a problem occurs, an alarm code immediately shows the details of the 

error. 

There are also optional functions such as limiting the operating mode, limiting 

the maximum temperature in heating/cooling mode, selecting the fan speed, 

etc. 

PSC-A1T 

Programmable timer used to set operating schedules for air conditioning 

systems. 

Along with the PSC-A64S and PC-ART controllers, the air conditioners they 

control can be operated according to the schedule below: 

- The timer can be set at 7-day intervals and start/stop can be set three 

times a day. 

- The remote control switch can be disabled during the OFF time (when 

used with PSC- A64S and PC-ART). 

- Two types of weekly schedule (A and B) can be set and easily changed for 

summer and winter operation. 

- Settings are all digitally displayed, allowing operations and settings to be 

easily checked. 

The power failure backup function prevents the timer from stopping because 

of a power failure (even if it lasts for weeks). 

1



PSC-A64S 

Central station 

CSNET-WEB 

Control system 

TS001 web screen 

HARC I&O 

HARC SMS Alarm 

28 

¡ 

Centralized control systems 

TCGB0052-rev.1-07/2009 

PSC-A64S (central control) 

- A group of up to 64 remote control switches can be connected to an H-LINK 

II to control up to 128 indoor units. 

- Up to 8 PSC-A64S units can be connected to an H-LINK II. 

- In addition to the basic functions, operation mode and temperature setting, it 

is possible to set the air flow or auto louver. 

- When a problem occurs, an alarm code immediately shows the details of the 

error. 

- A signal terminal to provide external inputs is supplied as standard. 

It controls the following functions: 

- On/Off 

- Emergency stop 

- Central operation output 

- Central alarm output 

PSC-A16RS (central control) 

- Up to 16 indoor units can be connected. 

- User-friendly. 

¡ Computer control systems 

CSNET-WEB 

HITACHI has developed the CSNET WEB system enabling equipment to be 

controlled remotely from any point of the local corporate network, or even via the 

Internet. 

CSNET WEB can be connected to the H-LINK network from any point on the 

network using a non-polarity two-wire cable, facilitating the installation task to 

the maximum. 64 outdoor units and 160 indoor units can be controlled by each 

H-LINK. 

CSNET WEB offers the following functions: 

- Simplified monitor and control of building by Building Layout view. 

- Locking of the different setting points. 

- Temperature selection. 

- Cooling and heating mode selection. 

- Fan speed selection. 

- Monitoring of percentile energy consumption. 

- Automatic cooling/heating mode. 

- Annual timer 

TS001 web screen 

Hitachi has developed a 15" touch screen, which by using the CSNET WEB and 

without the need for another computer, allows the air conditioning units to be 

controlled, monitored and managed. 

This screen is very practical for surveillance centers. 

PC-A1IO 

Allows non-HITACHI units (fans, air processing units, etc) to be incorporated 

into the H-LINK system. Therefore, specific parameters of these units can be 

monitored and controlled through the CSNET WEB. 

PC-A1I0 units can regulate up to 5 signals such as fan speed control, off, on, 

etc. 

HC-A160SMS 

SMS alarm notification device. The message contains the alarm and the unit to 

which it refers. It can be sent up to 5 different numbers. 

The message is repeated as a reminder until a response is sent.



HARC BX 

HC-A16KNX 

HC-A32MB 

HC-A64BNP 

NOTE: 

For more information on 

the remote control switches 

see the TC0050 technical 

catalogue. 

29 

¡ 

TCGB0052-rev.1-07/2009 

Building management systems 

HARC-BX 

Integrated with installations with intelligent control (Building Management 

System) 

Gateway interface with LonWORKS BMS systems (installations with intelligent 

control or BMS). HARC-BX allows control of up to 5 setting points and remote 

monitoring of up to 9 values. 

The HARC-BX can control and monitor up to 64 indoor units from 8 

different refrigerant systems connected to up to 8 different H-LINK lines 

(communication line between machines). 

HC-A16KNX 

Integrated with installations with intelligent control 


Gateway Interface to KNX systems. 

The use of HC-A16KNX allows the unit to be remotely controlled and its 

parameters monitored. 

HC-A16KNX can control and monitor up to 16 indoor units from 16 different 

refrigerant systems connected to a H-LINK line (communication line between 

machines). 

KNX is an European standard used in many installations. 

HC-A32MB 

Integrated with installations with intelligent control 


Gateway Interface to MODBUS BMS systems. 

The use of HC-A32MB allows the unit to be remotely controlled and its 

parameters monitored. 

HC-A32MB can control and monitor up to 32 indoor units from 32 different 

refrigerant systems connected to a H-LINK line (communication line between 

machines). 

MODBUS is an open protocol that can be used by any vendor thus allowing 

easy interaction with different devices. 

HC-A64BNP 

Integrated with installations with intelligent control (Building Management 

System). 

Gateway Interface to BACnet BMS systems. 

The use of HC-A64BNP allows the unit to be remotely controlled, and its 

parameters to be monitored. 

HC-A64BNP can control and monitor up to 64 indoor units connected to a 

H-LINK line (communication line between machines). 

The HC-A64BNP can be connected to any point in the H-LINK system. 

1



A table to select products 

Refrigerant layout 

30 

1.1.3. Flexibility of the system 

¡ 

TCGB0052-rev.1-07/2009 

Wide variety of options in the standard commands 

− The DC INVERTER ES units have many standard commands. These options 

can be easily configured by means of any of the wide variety of HITACHI remotecontrol 

switches, or through the PCBs of the indoor and outdoor units. In this way 

the DC INVERTER ES system adapts to each installation. 

¡ 

− 

Combinability 

The DC INVERTER ES units allow up to 3 indoor unit models with different 

capacities to be combined, making the installation more flexible. 

1.1.4. Availability of Hi-Tool Kit selection software 

Hi-Tool Kit is a tool that allows you to design installations and automatically 

generate all the information necessary to carry out the work. This information is: 

- A table to select products 

- Cooling and electrical diagram generated automatically according to the 

installation design. 

- List of products necessary to carry out the installation. 

- Start-up management.


Installation benefits: 

31 

1.2. Installation advantages 

1.2.1. Compact size 

The new DC INVERTER ES outdoor units and lighter and more compact. 

Their lightness and smaller volume allow them to be transported more easily. 

They also take up less room and can be installed more quickly. 

The following tables show the reduction in size and weight between a traditional 

DC INVERTER machine and the new DC INVERTER ES models. 

TCGB0052-rev.1-07/2009 

Model Weight (Kg) Volume (m 3 ) 

Machine 

Traditional DC 

INVERTER 

Decreases 

RAS-4HP RAS-8HP RAS-4HP RAS-8HP 

95 260 0.55 1.24 

-12% -48% -22% -61% 

DC INVERTER ES 85 135 0.43 0.48 

1.2.2. Easy to install and flexible units and pipes 

¡ 

The HITACHI DC INVERTER ES installation system is one of the most flexible 

and easy-to-install systems on the market, offering substantial cost savings during 

installation and subsequent maintenance. 

Lighter and smaller 

- Since it is lighter and smaller less installation space is required, making it 

easier to access the machine for installation and subsequent maintenance. 

TRADITIONAL DC INVERTER 

RAS-4HVRNE 

 

New DC INVERTER ES 

RA S-(4~6)HVRNSE 

1



Multikits and distributors example 

supplied by HITACHI: 

TE-N multikit 

TRE-N distributor 

32 

¡ 

¡ 

Less refrigerant load 

The new cooling circuit design allows extra refrigerant load to be reduced (up to 

30%, depending on the model). 

Mounting accessories 

Hitachi provides all of the accessories required to connect the pipes 

(distributors and multikits). These accessories make the installation process more 

flexible and straightforward. 

TCGB0052-rev.1-07/2009 

TRADITIONAL DC INVERTER 

New DC INVERTER ES 

RAS-4HVRNE RAS-4HVRNSE



Example of H-LINK II system: 

NOTES: 

When using the H-LINK II system, 

DIP switches have to be adjusted. 

If the DIP switches are not set 

or set incorrectly, an alarm may 

occur due to transmission failure. 

Total wiring length for the remote 

control switch can be extended to 

up to 5,000 m. If total wiring length 

is less than 30 m, it is possible to 

use the normal wiring (0.3 mm²). 

The H-LINK II system provides 

maximum flexibility for system 

design; installation is easy, 

and total costs are reduced. 

Furthermore, it can be controlled 

centrally by connecting CSNET 

WEB to H-LINK II wiring located in 

the room next to the room where 

CSNET WEB is installed. 

You can also control the 

installation by Internet via CSNET 

WEB 

33 

1.2.3.Easy and flexible electrical installation 

¡ Interconnection of units via the new H-LINK II 

The units interconnect via a bus called H-LINK II, consisting of 2 non-polarity 

cables and accepting lengths of up to 1,000 m. Accessories are available if 

required to increase this length to 5,000 m. 

¡ Up to 160 indoor units connected to each circuit. 

Each H-LINK II bus can communicate up to 160 indoor units. Taking into account 

the absence of polarity and the length of line permitted, the flexibility of the 

interconnection between the machines is very high. This lets you, for example, 

connect the H-LINK II of a cooling system's indoor unit to the H-LINK II of another 

system's indoor unit. 

TCGB0052-rev.1-07/2009 

H-LINK II BUS 

Specifications: 

Transmission cable: 2-wire 

Polarity of transmission 

cable: 

Non-polar wire 

Maximum number of outdoor 

units 

64 units per H-LINK II system 

Maximum indoor units 160 units per H-LINK II system 

Maximum number of 

equipment units 

200 

Maximum wiring length: Total 1000 m (including CSNET WEB) 

Recommended cable: 

Shielded twisted pair cable or shielded pair 

cable, over 0.75mm² (equivalent to KPEV-S) 

Voltage: DC5V 

¡ No operating cable for the remote control 

In the case of double, triple and quad systems the interior units can be controlled 

using a single remote control switch without having to join them with an operating 

cable for the remote control. 

Operation wiring 

An operating cable is not 

required for using the 

remote control switch 

1



Start-up benefits: 

Test run from outdoor unit DIP 

switches 

Test run from the remote 

control switch 

34 

1.2.4. Easy and flexible control connection 

(Central Station, BMS Interface, CSNET-WEB) 

¡ No polarity 

Thanks to the absence of polarity, any centralized control can be connected 

directly to the H-LINK II bus, which means that special lines are not needed. 

¡ Auto-configuration 

Aside from the customized configuration, the control systems are also autoconfigurable; 

for example, they can determine the type of machine they are 

connected to, and detect the type of indoor unit or its power. 

1.2.5. Flexible adaptation to the installation site 

¡ Adjustable power via DIP switch 

The capacity of the indoor units can be set using a DIP switch that is included 

in the unit's PCB. The installation design can be adapted to the building's actual 

features. 

1.3. Start-up benefits 

1.3.1. Automatic start-up test 

There are three set-up modes: 

− Test run. 

− Test run from the remote control switch. 

− Test run from the outdoor unit. 

¡ Test run 

The automatic test run can be activated through outdoor unit DIP switch or indoor 

unit remote control switch. The outdoor unit 7-segment display gives all the 

information needed to check the system is operating correctly. 

− Identification system for connected outdoor units: 

Using a remote control switch, you can confirm what series the operational 

outdoor units belong to (e.g. single or multiple). 

− Automatic identification of each indoor unit. 

They can also be manually assigned using the unit's DIP rotating switch. 

¡ Test run from the remote control switch 

The remote control can run 3 operations. 

− Auto-diagnostic: 

Quick check of the operating conditions of the indoor units and the outdoor 

unit. 

− Data memory query: 

If an abnormality occurs, the LCD remote control switch shows an alarm code 

and saves all the operation settings of the unit at the time the fault occurs, so 

that a quick diagnosis can be made of the installation. 

− Optional function setting: 

The remote control switch allows cancellation of the 4-degree offset in the 

heating mode and an increase in the fan speed setting, among 29 possible 

options. 

This way, multiple indoor units can be set at the same time. Also, the 

configuration can easily be changed, even after the installation has been 

completed. 

TCGB0052-rev.1-07/2009


Start-up benefits: 

Functional Benefits: 

35 

¡ 

TCGB0052-rev.1-07/2009 

Test run procedure from the outdoor unit: 

The outdoor unit PCB is equipped with a 7-segment screen, which depending on 

the position of the PSWs shows the following parameters in sequence 

− Outdoor temperature 

− Discharge gas temperature 

− Evaporation temperature in heating 

mode 

− Condensing temperature 

− Discharge pressure 

− Compressor run time 

This allows quick and accurate diagnosis 

of the installation during normal operation 

or test run. 

1.3.2. Service check 

¡ Hitachi Service Tools 

Hitachi also has a powerful IT tool, Hitachi 

Service Tools. This software can be run 

from any laptop computer through an 

interface connected to the H-LINK II bus, 

and it can collect several parameters 

that have an influence on the unit's 

performance. These parameters can also 

be monitored in different formats, allowing 

incidents during start-up to be located 

quickly. 

1.4. Functional benefits 

High-efficiency 

DC motor 

1.4.1. Maximum efficiency 

Hitachi's DC INVERTER ES technology offers very functional machines designed 

to provide maximum comfort to users. 

¡ Increased system capacity 

− DC INVERTER ES 

DC INVERTER ES systems are highly efficient due to the following technical 

features: 

- More efficient three-row heat exchanger. 

- Supercooling circuit for RAS-(2~6)HVRNSE 

New heat exchanger 

with more contact area 

(3 rows). 

New three-blade fan 

Exchanger duct 7 mm in 

diameter 

Expansion valve 

4-way valve 

Liquid receiver 

Highly-efficient DC 

INVERTER compressor 

Stop valve 

(liquid line) 

Stop valve (gas line) 

Indoor unit heat 

exchanger 

Expansion valve 

1 

Increased enthalpy 

through use of 3-row 

exchanger


Maintenance benefits: 

36 

High efficiency 

DC Motor 

TCGB0052-rev.1-07/2009 

- 

Supercooling circuit for RAS-(8/10)HRNSE 

Outdoor heat 

exchanger 

Improved temperature 

distribution of heat exchanger by 

two fans 

Energy 

consumption 

Heat exchanger of 

narrow piping 

Ø9.53→ Ø7 

Electronic 

expansion valve 

4-Way 

valve 

Sub-cooler 

Large capacity, 

high efficiency DC 


Indoor heat 

exchanger 

Liquid stop valve 

Single phase 

receiver 

Gas stop valve 

Electronic 

expansion 

valve 

Enlarged enthalpy 

by sub-cooler 

Rear 

side 

Sub-cooler 

Front 

side 

Air Air 

¡ Reduced power consumption 

- Highly efficient DC Scroll Compressor (use of neodymium magnets in the 

compressor motor rotor). 

- New inverter control 

- Self demand control 

Auto-control of power consumption, which can be regulated from 100%, 

70% and 50% of nominal value. Avoids excess energy consumption by 

regulating the frequency. 

Electrical 

consumption 

Auto-control of power consumption. 

This function maintains the set current value. 

Regulate the total capacity 

in the specified range 

Morning Day Night 

Set the current value 

This current value 

can be chosen 

from 50%, 70% or 100% 

of the nominal value. 

- Wave mode 

Regulation of demand through wave control. The demand is regulated 

by controlling the wave, as shown in the chart below. 

Without energy value control 

Average energy consumption 

Energy value set 

Energy 

consumption 

Power consumption 

auto-control. 

Energy value auto-control 

Average energy consumption 

Energy value set


Functional benefits: 

Acoustically insulated compressor 

More aerodynamic three-blade fan 

37 

¡ 

RANGE 

The optimized refrigerant cycle makes it possible to work with temperatures below 

zero in cooling mode. 

1.4.2. Silent compressor 

TCGB0052-rev.1-07/2009 

Cooling (DB) 

Heating (WB) 

RAS-2/2.5HVRN1 

RAS-(3~10)HP 

RAS-(3~10)HP 

The DC INVERTER ES compressor reduces the noise level to a minimum. 

The neodymium magnets in the rotor of the DC compressor improve the 

performance of the compressor at low frequencies, and a significant reduction of 

electromagnetic noise has been achieved by separating the rotor into two parts. 

The combination of scroll compressors and an insulating cover provide minimum 

noise levels. 

1.4.3. Silent fan 

The DC INVERTER ES units have been designed with a fan that reduces the 

noise level to a minimum. 

The ventilation system has a revolutionary three-blade fan. This fan is much more 

aerodynamic than earlier models. It has a greater surface area in contact with the 

air and a better turning angle, preventing turbulence and allowing the ventilator to 

be fitted lower. 

At the same time, the use of DC motors with PWM control increase the system's 

efficiency and reduce electromagnetic noise. 

Traditional fan 

15% 

New fan 

1


Maintenance benefits: 1.5. Maintenance benefits 

Alarm reception via 

remote control switch 

Alarms received through an SMS 

CSNET-WEB as maintenance tool 

38 

¡ 

TCGB0052-rev.1-07/2009 

Minimum maintenance 

The DC INVERTER ES units have been designed in line with Hitachi's philosophy, 

guaranteeing great reliability and robustness and reducing maintenance to a 

minimum. 

¡ Easy accessibility 

The DC INVERTER ES system components are easily accessible. You can 

access all of theunit's components to perform any necessary operations through 

a simple cover. The entire system is designed for maintenance operations to be 

easy and simple. 

¡ Alarm codes 

The alarms are grouped by elements within the system in order to facilitate 

maintenance work and optimize the fitter's job 

¡ SMS Alarm 

The alarm signals can also be received through a simple SMS specifying the 

cycle affected and the alarm code, allowing incidents to be detected and solved 

more quickly. 

1.5.1. Availability of maintenance tools 

All the functions of the Hitachi Service Tools for setup are applicable to unit 

maintenance, both preventive and corrective, so that any problem can be 

detected and solved immediately. 

CSNET-WEB is also useful for maintenance tasks.


Main features of the units: 

39 

1.6. Main features of the units 

1.6.1. Indoor units 

¡ 

TCGB0052-rev.1-07/2009 

RCI – 4-way cassette type 

New design of air inlet slats 

New design that allows the air to be distributed more evenly, providing more 

comfort. 

Intelligent slat closing system. 

When the machine is off, the slats move into the horizontal position, closing 

the air outlet and preventing the build-up of dust and foreign objects. 

RUN STOP 

Turbo fan 

The fan is highly efficient with three-dimensional twisted blades and a large 

bore. 

This improves the efficiency of the airflow by almost 20% compared to 

traditional units, reducing the turbulence caused by air. 

Electromagnetic noise reduced 

Use of a lower damping slot near the rotating shaft. 

The following table shows the sound pressure levels in dB(A). 

Model 

Airflow 

speed 

Standard operation dB(A) 

Hi Med Low 

RCI-1.0FSN2E 32 30 28 

RCI-1.5FSN2E 32 30 28 

RCI-2.0FSN2E 32 30 28 

RCI-2.5FSN2E 32 30 28 

RCI-3.0FSN2E 34 32 30 

RCI-4.0FSN2E 38 35 33 

RCI-5.0FSN2E 39 37 35 

RCI-6.0FSN2E 42 40 36 

1



40 

TCGB0052-rev.1-07/2009 

Reduced electrical power consumption due to new DC motor 

The DC fan motor greatly improves efficiency compared to conventional 

products with AC motors. In addition, air blasts are reduced by controlling the 

rotation speed of the fan. 

The motor's electrical power consumption is reduced by the use of a ferrite 

magnetic surface-mounted rotor, centralized winding system and split core 

system. The motor's efficiency has been improved in all aspects, and it is 

50% smaller and lighter than conventional machines. 

Installation benefits 

- 

Motor efficiency (%) 

DC Motor 

Compact, slim and can be installed in a small space 

The height of the units is just 298 

mm, among the lowest on the market, 

so they can be installed in a reduced 

space inside a suspended ceiling. 

Efficiency increased by 40% 

(power consumption halved) 

AC Motor 

- Adaptable to high ceilings 

This model has been adapted for high ceiling (4.2 m) installations 

by incorporating high speeds. This feature provides comfortable air 

conditioning in suburban stores and showrooms. 

High ceiling 

1.0/1.5/2.0/2.5/3.0 HP 

4-way 3-way 2-way 4-way 

3.5/4/5/6 HP 

3-way 

(m) 

2-way 

Standard filter 2,7 3 3,3 3,2 3,6 4 

Speed 1 3 3,3 3,5 3,6 4 4,2 

Speed 2 3,5 3,6 - 4,2 4,3 - 

- Smaller ceiling opening for installation and renewal 

The ceiling opening size has been changed from the conventional 910 mm 

to a range between 860-910 mm, so the ceiling panel cut-out will be smaller. 

348 mm 

298 mm 

1140 mm 

840 mm 

65% 

New FSN1E 

65% 

100% 

previous 

840 mm 

820 mm


Main features of the units: - Flexibility in the installation of piping 

41 

TCGB0052-rev.1-07/2009 

- 

- 

Improved piping flexibility thanks to 

square-shaped unit-suspending positions. 

The suspending bolt pitch size is 760 mm, 

positioned at each corner of the unit. 

The direction of the unit can thus be 

changed easily to match the pipe 

connection without changing the bolt 

positions. The layout is simple even for 

continuous installation. 

By setting the refrigerant pipe and drain 

pipe at separate corners. the working 

efficiency is improved. 

Fitted with a drain pump that allows a pump lift of up to 850 mm. 

Uniform panel size 

Panel sizes are standardized to 

950 mm square to facilitate easy 

interchange with other models 

with different capacities. 

- Unit height easily adjustable from the corner pocket 

An access is provided for each of the four panel corners, so that the body 

height can be easily adjusted without removing the panel. 

Body 

Panel 

Corner 

access point 

The unit can be aligned with 

the ceiling 

by moving the structure 

up or down using the corner 

access pockets. 

1



42 

¡ 

TCGB0052-rev.1-07/2009 

RCIM – 4-way (small) cassette type 

Quiet operation 

- The DC motor means reduced electromagnetic noise. 

- The following table shows the noise levels of the different models: 

Model 

Airflow 

speed 


Hi Med Low 

RCIM-1.0FSN2 36 34 32 

RCIM-1.5FSN2 38 35 33 

RCIM-2.0FSN2 42 39 37 

Reduced electrical power consumption due to DC motor 

- The DC fan motor greatly improves efficiency compared to conventional 

products with AC motors. In addition, air blasts are reduced by controlling 

the rotation speed of the fan. 

- The motor's electrical power consumption is reduced by the use of a ferrite 





DC Motor 



AC Motor 



This model has been adapted to high ceiling installations (3.5 m). 

- 

High ceiling 1.0 HP 1.5 HP 2 HP 

Standard Below 2.5 Below 2.5 Below 2.7 

Speed (1) 2.5 to 2.9 2.5 to 2.9 2.7 to 3.1 

Speed (2) 2.9 to 3.9 2.9 to 3.9 3.1 to 3.5 

Flexibility in the installation of piping 

Improved piping flexibility thanks to squareshaped 

unit-suspending positions 

The suspending bolt pitch size is 530 mm, 

positioned at each corner of the unit. The 

direction of the unit can thus be changed 

easily to match the pipe connection without 

changing the bolt positions. The layout is 

simple even for continuous installation. 

The efficiency of the installation has been 

improved by setting the refrigerant pipe and 

drain pipe at separate corners. 

The water level automatically activates 

the pump when the draining process is 

required. 

(m)



43 

¡ 

TCGB0052-rev.1-07/2009 

- Fitted with a drain pump that allows a pump lift of up to 600 mm. 

- Uniform panel size 

The panels are 700x700 mm. 

To facilitate installation in standard 

European grid ceilings (600x600 

mm), the unit measures 570x570 

mm. 

- Unit height easily adjustable from the corner pocket 

An access is provided for each of the four panel corners, so that the body 

height can be easily adjusted without removing the panel. 

RCD – 2-way cassette type 


- 

The following table shows the noise levels of the different models: 

Model 

Airflow 

speed 

Body 

Panel 

Corner 

access point 

The unit can be aligned with 

The unit can be aligned with the 

ceiling surface by moving the 

structure up or down using the 

corner access pockets. 


Hi Med Low 

RCD-1.0FSN2 34 32 30 

RCD-1.5FSN2 35 32 30 

RCD-2.0FSN2 35 32 30 

RCD-2.5FSN2 38 34 31 

RCD-3.0FSN2 38 34 31 

RCD-4.0FSN2 40 36 33 

RCD-5.0FSN2 43 40 36 

1



44 

TCGB0052-rev.1-07/2009 

Reduced electrical power consumption due to DC motor 


products with AC motors. In addition, air blasts are reduced by controlling the 

rotation speed of the fan. 

The motor's electrical power consumption is reduced by the use of a ferrite 





DC Motor 



AC Motor 


- Compact, slim and can be installed in small spaces 

A compact turbo fan simplifies 

the structure and reduces 

the height of the unit to 298 

mm. The unit's low profile 

design allows easy installation 

in confined spaces inside a 

ceiling. 

New model 

(50%) 

Previous 

model 

(100%) 


This model has been adapted to high ceiling installations (3.4 m). 

High ceiling 1.0~2.5 HP 3.0~4.0 HP 5.0 HP 

Standard Below 2.4 Below 2.7 Below 2.9 

Speed (1) 2.4 to 2.7 2.7 to 3.0 2.9 to 3.2 

Speed (2) 2.7 to 2.9 3.0 to 3.2 3.2 to 3.4 

(m)



45 

¡ 

RPC – Ceiling type 

Profile design 

TCGB0052-rev.1-07/2009 

The RPC units have a stylish shape, which along with the new color make 

them one of the most elegant units of this market segment. 

The unit is equipped with an automatic swing louver to ensure even 

distribution of the air. 


- Versatile mounting 

To increase the installation and positioning options HITACHI has added a 

second connector for the drain pipe. 

Drain pipe 

Rear side 

- Mounting brackets 

Adjustable mounting brackets allowing the machine to be installed flush with 

the ceiling. 

Mounting adjusted 

to the ceiling 

1



0.8~1.5 HP 

2~6 HP 

8/10 HP 

1.5 HP 

46 

¡ 

TCGB0052-rev.1-07/2009 

RPI - In-the-ceiling type 

The main features of the RPI/RPIM ceiling type indoor unit are: 

Direction of air inlet 

(factory supplied) 


- A new fan unit combining innovative design with new materials results in 

important noise reductions, and makes Hitachi's RPI(M) units among the 

most silent on the market. 

- The following table shows the noise levels of the different models: 

Models 

Sound level dB(A) 

Sound level dB(A) 

Models 

High Low High Low 

RPIM-1.5 33 29 RPI-3.0 35 31 

RPI-1.5 34 31 RPI-4.0 37 35 

RPI-2.0 33 29 RPI-5.0 39 36 

RPI-2.5 35 30 RPI-6.0 40 39 


- Less installation space. 

Up to a 23% reduction of the installation space if 

we compare the RPI-1.5FSN1E to the new RPI-1.5FSN2E. 

Access to 

power box 

 

- Equipped with drain mechanism with high pump lift. 

A drain pump lift of up to 850 mm from the ceiling surface is achieved 

by employing a drain-up mechanism with high pump lift (500 mm in the 

previous model). 

- Change of inflow direction. 

The direction of the inlet air can be modified by changing the back cover 

position, as shown in the following diagrams: 

RPI-(2.0~6.0)FSN2E 

Optional inflowing air 

direction (by changing the 

rear cover) 

Rear cover Change the sides 

of the rear cover 

power box



0.8~1.5 HP 

2~6 HP 

8/10 HP 

1.5 HP 

47 

 

TCGB0052-rev.1-07/2009 

RPIM-1.5FSN1E 

Direction of air suction 

supplied by the factory. 

- Static pressure selection. 

(For the RPI-0.8~6.0 FSN2E/RPIM-1.5 FSN2E units) 

The static pressure can be selected using the remote control switch. 

- Filter servicing. 

Filter servicing has been improved for the RPI(M)-FSN2E unit. The filter is 

now accessed through the lower part of the unit. 

For servicing, remove the three screws of the filter support, and pull the filter 

downward, as shown in the diagram. 

Pull the air 

filter this 

way 

Remove the front and 

 

back covers and the 

electrical box from the 

unit. 

Air filter fixing bar 

Air filter 

 

Swap the position of the 

front cover and the back 

cover 

Change the direction of the 

electrical box as shown in 

the figure. 

Optional air suction 

 

1



48 

¡ 

TCGB0052-rev.1-07/2009 

RPK – FSN2M wall type 

Compact design 

- The RPK-FSN2M unit is very compact and stylized, giving a significant 

reduction in size (up to 20%) compared to other units. 


- 

The PC-ART does not need an auxiliary cable for installation. 

Maintenance work 

New FSN2M 

20% 

- When the PC-LH3A is used the alarm signals are indicated in the "Filter" 

and "Timer" LEDs of the unit's casing.



49 

¡ 

¡ 

RPF – Floor type 


TCGB0052-rev.1-07/2009 

At a compact 220 mm deep, the RPF unit can be mounted along the wall, 

taking up minimum floor surface. 

Low height 

The height of the indoor unit is only 630 mm, making it ideal for perimeter-zone 

air conditioning. 

Optional location for PC-ART (RPF) 

The PC-ART unit can be installed underneath the plastic cover as shown in the 

figure below. 

RPFI – Floor-concealed type 


At a compact 220 mm deep, the RPFI unit can be mounted along the wall, 

taking up minimum floor surface. 

Low height 

The height of the indoor unit is only 630 mm, making it ideal for perimeter-zone 

air conditioning. 

Air discharge direction change 

The air discharge position can be changed as shown in the figure below. 

Air outlet area 

Upper front 

cover 

1



RAS-(2~6)HVRN(1)(S)(E) 

RAS-(8/10)HRNSE 

50 

1.6.2. Outdoor units 

¡ 

Highly efficient 

TCGB0052-rev.1-07/2009 

High efficiency refrigerant cycle 

HITACHI has developed a new, more efficient (three row) heat exchanger 

making the cooling cycle extremely efficient. 

- More efficient heat exchanger with 7 mm piping. 

- More efficient three-row heat exchanger. The new design maximizes the 

area in contact with the air. 

Only for RAS-(5/6/10)H(V)RNSE 

Ø 7 mm 

New exchanger 

- Energy-saving by side flow technology. Uniform air velocity distribution by 

side flow technology (RAS-(8/10)HRNSE).



Newlydevelopped 

scroll for 

410A 

New drive 

mechanism 

Oil feeding 

mechanism etc., 

DC Inverter 

Motor 

51 

Highly efficient scroll compressor exclusive to Hitachi 

- Compact design 

The new HITACHI DC INVERTER scroll compressor has been developed to 

increase efficiency, reliability and power consumption. 

- High pressure shell 

- It acts as an oil separator reducing the amount of oil circulating in the cooling 

system giving better heat exchanger efficiency. 

- Motor heat is not added to the suction gas before compression, which reduces 

the discharge gas temperature. This is particularly important at low suction 

temperatures. The discharge gas cools the motor sufficiently. 

- Refrigerant cannot enter the shell during the off cycle causing oil dilution and oil 

foaming at start up. 

- New system of regulating pressure (only for RAS-4~6HVRNSE), increasing the 

compressor's efficiency and reliability in part load mode. This system ensures 

the work pressure of the compressor is always at optimum level regardless 

of the charge, so that the ratio between the discharge pressure (Pd) and the 

suction pressure (Ps) is optimum as in the following graphic: 

TCGB0052-rev.1-07/2009 

Pressure 

Pd 

Ps 

Volume 

Overcompression zone based on 

the new pressure regulation system 

- Lubrication 

Bearing in mind that lubrication is one of the most important factors in the service 

life of a compressor, HITACHI has developed a system based on the pressure 

differences between the suction and discharge using a secondary pump at the 

base of the compressor. As a result, all of the compressor's moving parts are 

lubricated evenly, ensuring high reliability in terms of its operating range, even at 

low frequencies. 

- Protection against liquid return 

When the compressor is at rest, the moving scroll rests on the casing. When the 

compressor starts to run, the pressure in the chamber under the scroll builds 

up through two bleed holes in the medium pressure section of the compression 

stroke. This pressure then forces the scroll up against the housing and seals the 

compression chamber. If liquid returns to the compressor, the resulting increase 

in pressure forces the scroll downwards, breaking the seal and allowing the liquid 

to pass back into the compressor body, where it will boil off due to the higher 

temperature. 

1



52 

Motor de alta eficacia (%) 

Compressor (rpm) 

Temperature of the room 

Efficiency 

TCGB0052-rev.1-07/2009 

- DC compressor with neodymium magnet 

The use of a DC compressor improves the performance at around the 

30-40 Hz range where the operation time of the inverter compressor 

is longest. Additionally, to suppress electromagnetic noise interference 

and achieve low noise, the rotor has been divided into two parts and the 

electric pole displaced. 

Characteristics at low speed, which affect the annual running cost, have 

been significantly improved 

rpm 

Motor de c.c. 

Motor de c.a. 

Rotor shape 

optimized 

Reduction of 

the typical 

electromagnetic 

noise of the DC 

compressor. 

Compressor rotor 

Neodymium 

magnet 

Increased 

efficiency in 

the complete 

range of rpms 

used 

- New design of stator coils (only for RAS-4~6HVRNSE) 

The new design of the stator coils positioned to optimize the magnetic 

field significantly reduce heat losses, and increase the motor's efficiency 

at low speeds. 

rpm 

¡ Silent units 

Inverter control 

The inverter controls compressor speeds from 30 Hz to 115 Hz, quickly 

reaching the set temperature and maintaining a stable energy-saving 

operation, thus reducing noise since the compressor is not running 

continuously. 

Diagram of operation (in heating mode): 

Set temperature 


Machine with constant speed 

Time 

- In the case of ES 

Quickly reaches the temperature set at high power, then maintains stable energy-saving 

operation. 

- In the case of other constant speed machines: 

Slowly reaches the set temperature, then turns on and off repeatedly to maintain the 

temperature, causing uneconomical operation and “power waste”. 

High power operation 

Efficiency 

Compressor efficiency 

Energy saving operation 

Current model 

Set-Free 

New stator coil design 

Machine with constant speedS 


Time 

- In existing machines with constant speed, repeated turning on and off wastes energy.



53 

TCGB0052-rev.1-07/2009 

PCB of the new DC inverter 

New digital control of 180º PAM and new PWM 

- 

- 

Diagram of operation: 

DC motor drive control system 

30° 120° 60° 

120° 

Electricity 

Time 

120° 

Current 

Low-noise compressor 

Voltage 

180° 

180° 

Current 

Electricity 

Time Voltage 

180º RECTANGULAR WAVE PWM CONTROL 

The Scroll Compressor allows reduced noise and vibration through: 

- Compression points evenly distributed along the compression stroke. 

- Reduced number of components used 

- Use of a high-pressure insulation shell 

Noise 

Noise 

Optimized rotor shape 

Electromagnetic 

Frequency (Hz) 


For compressor motor, before 

changing the rotor 

Electromagnetic noise reduced 

For compressor motor, after 

changing the rotor 

1


Main features of the units: Enhanced fan motor features 

New three-blade fan with lower body 

CSNET-WEB 

Ability to lock functions from the 

central control 

54 

TCGB0052-rev.1-07/2009 

- DC fan motor with outstanding efficiency 


products with AC motors. In addition, air blasts are reduced by controlling 

the rotation speed of the fan. Stable operation is provided against strong 

head winds of approximately 20 m/s on the front face of the outdoor unit. 


DC Motor 

AC Motor 

Revolutions per Min. (rpm) 

Efficiency increased by 40% (motor 

power consumption halved). 

- PWM (pulse width modulation) concept of speed control 

The switching element (a power MOSFET) switches back and forth at 

a frequency of several tens of kHz. This controls the ON/OFF duty rate 

per cycle and changes the voltage applied to the fan motor to control the 

rotation speed. 

- New fan propeller 

Hitachi uses high technology to achieve the lowest noise. The new fan 

has three blades instead of four. It is designed to have a lower body than 

traditional fans, and achieves surprising results, with a noise reduction of up 

to 4dB (A). 

¡ Large range of operating possibilities 

The use of these machines together with CSNET-WEB can increase the 

performance of these installations even more by: 

- Scheduled programming, which prevents these machines from running 

continuously in rooms which are not being used, and allows rooms to be 

preheated or pre-refrigerated just before being occupied. 

- Limiting the set temperatures, which means that machines do not work at 

maximum capacity when comfort does not require it. 

- Locking functions from the central control, thus avoiding incorrect or 

ineffective use of the units. 

All these and many more functions mean that the use of the installation as a 

whole can be optimized. 

And it is worth remembering that because of the wide range of indoor units you 

can always find the unit with the power and type of installation that best suits your 

needs.

Supply air 



Return air 

Exhaust air 

Outdoor 

fresh air 

55 

1.6.3. Complementary systems 

¡ 

Fan units with energy recovery, KPI 

The new KPI units come in a wide range of models with airflows from 500 

to 3,000m3 /h, which allow a system adapted to any type of installation 

in accordance with its requirements. 

Units from 500 m³/h to 2000 m³/h perform recuperation of temperature and humidity 

from the inner air. On the other hand the unit of 3000 m³/h only affects the temperature. 

Depending the installation requirements the units from 500 m³/h to 2000 m³/h allows 

the user to change the heat exchanger component by one that only works over the 

temperature. 

KPI units are fitted with a highly-efficient exchanger with the following features. 

TCGB0052-rev.1-07/2009 

KPI units are fitted with a highly-efficient exchanger with the following features: 

- Fresh air supply for indoor environments. 

- Heat transfer from the new air to the discharged air in summer, 

and the other way around in the winter. 

- New air filter. 

- As a consequence of the humidity exchanger during summer period, the power 

consumption of the air conditioner system can be reduced at most in 20%. 

Operation in winter Operation in summer 

Air supply 

Heat transfer 

Wide range of units: 

- 

Model 

KPI models with energy recovery: 

Flow 

(m³/h) 

Temperature 

Exchange 

Efficiency 

KPI-502E1E 500 75 

KPI-802E1E 800 75 

KPI-1002E1E 1,000 78 

KPI-1502E1E 1,500 78 

KPI-2002E1E 2,000 78 

- 

Model 

KPI models with heat recovery: 

Flow 

(m³/h) 

Exhaust air 

Humidity transfer (KPI-(502~2002)E1E units) 

Temperature 

Exchange 

Efficiency 

KPI-3002H1E 3,000 54 

Heat exchanger 

Operation in winter 

Air supply 

Air supply 

Humidity transfer 

Heat transfer 

Heat transfer 

Expelled 

air 

Air supply 

Exhaust air 

Operation in summer 

Operation in winter Operation in summer 

Air supply 

Air supply 

Expelled 

air 

Expelled 

air 

Expelled 

air 

1



56 

SA 

RA 

Flexibility (KPI-(502~2002)E1E units) 

By just swapping the exchanger one can change from an energy recovery unit 

to a heat recovery unit, depending on the type of installation. 

TCGB0052-rev.1-07/2009 

Heat recovery exchanger Energy recovery exchanger 

Different operating modes 

Unit KPI-3002H1E always perform the exchange between both streams 

under any working condition. On the other hand units from 500 m³/h to 2000 

m³/h allow the user to choose between different ventilation modes: Forced 

exchange ventilation, forced free ventilation and automatic ventilation mode. 

- Heat exchange mode 

Under any working conditions, the inlet and outlet stream cross the 

heat exchanger performing energy transfer between both of them. The 

exchanger can be of humidity or of humidity and temperature at the same 

time. The exchange efficiency can reach even to 80%. 

OA (outside air) 

Temperature: 32.0ºC 

RH: 70% 

Absolute humidity: 0,0465 lb/kg 

Enthalpy: 86.2kJ/kg 

RA (return air) 


RH: 50% 

Absolute humidity: 0,0231lb/kg 

Enthalpy: 52.9kJ/kg 

EA (expelled air) 

- Ventilation Mode 

Air returned from the indoor side is exhausted without heat exchange. 

Outside air attenuator 

EA 

OA 

(*) Exemple of working in cooling mode 

NOTES: 

OA: Outdoor fresh air 

EA: Expelled air 

SA: Air supplied 

RA: Return air 

SA (supply air) 


RH: 63% 

Absolute humidity: 0.0145kg/kg 

Enthalpy: 64.7kJ/kg



525mm 

57 

TCGB0052-rev.1-07/2009 

- Automatic Ventilation 

When the unit is set in automatic ventilation mode, is the control itself who 

decide if the best option is to perform heat exchange or if on the other hand 

is better a free ventilation mode. 

The variables used by the control are the outdoor temperature, the indoor 

temperature and also the temperature set by the user. The target is always 

to have the maximum comfort with the minimum power consumption. 

Features 

- Low noise level: 

Only the fans move. 

- Compact (KPI-(1502/2002)E1E units): 

The slim design of the KPI units make them the most compact in their 

category. 

Their lightweightness and height make transport easier and mean that less 

room and time are required for installation, since they can be positioned 

underneath a suspended ceiling without difficulty, just like any other indoor 

unit. 

- Heat exchanger: 

The heat exchangers have been designed using highly permeable materials, 

which allows a considerable and/or latent heat exchange between the inside 

and outside air, ensuring that the two do not mix. 

- Easy installation: 

HITACHI's KPI units are installed safely and easily, since they have 

4 fastening hooks that allow straightforward and safe installation. 

The ducts are adjusted using a flange that allows them to be moved easily 

and safely. The fastening system is shown below: 

Lock nut 

Washer 

KPI units 

Rubber 

insulation 

Anchor bolt 

Example: KPI-(502~2002)E1E 

- Carefree maintenance: 

The key components of HITACHI's KPI units can be accessed easily, through 

hatches on the sides and lower parts of the machine. These components 

include the exchanger, power box and fans. 

1



NOTE: 

If the outdoor air temperature is 

lower than 3 ºC, the fresh outdoor 

air rate will decrease. 

Damper air-flow control provides 

comfortable cooling. 

A micro-computer controls the angle 

of the damper according to both 

room air temperature and outdoor 

temperature to adjust the fresh 

air flow, thus keeping the room 

temperature constant. 

58 

¡ 

Econofresh kit 

The new Econofresh kit is an intelligent accessory device that is easily installed. It 

renews room air and saves energy. 

No refrigerant cycle is required. A direct RPI-5HP unit return duct connection is 

used instead. 

The Econofresh kit can provide up to 100% fresh air and has the ability to provide 

“free cooling” through the damper when the outdoor temperature is below the 

indoor set temperature. 

This system will not only maintain the correct room temperature and provide fresh 

air, but also natural cooling. It therefore increases energy savings. 

TCGB0052-rev.1-07/2009 

Return air duct Econofresh kit 

RPI unit 

Fresh air duct 

Operation mode 

Fresh air cooling during intermediate seasons saves energy. 

This unit uses an economizer for cooling, which takes in fresh air if the 

outdoor temperature is cooler than the indoor air, as shown in the graph 

below. 

In this situation, no compressor is used and thus a remarkable amount of 

energy is saved. 

Time (h) / year 

250 

200 

150 

100 

Graph example of cold region temperature: 

50 

The compressor stops during cooling 

0 

operation 

-10 0 10 

Outdoor temp (ºC) 

20 30 40 

The power consumption is reduced by more than 20% during operating mode 

with cooling by using the Econofresh kit + RPI-5.0FSN2E. 

- Fresh clean air revives your room 

A fresh air intake system keeps the air in a room always clean. 

The optional CO sensor can sense the degree of pollution of the air in the 

2 

room and automatically control the fresh air flow.

General data 

59 

TCGB0052-rev.1-07/2009 

2. General data 

This section offers a summary of the most important general data of the indoor, outdoor and complementary units of the 

UTOPIA DC-INVERTER ES Series. 

Contents 

2. General data ............................................................................................................59 

2.1. General data for indoor units ................................................................................................................ 60 

2.1.1. RCI – 4-way cassette type .............................................................................................................................. 60 

2.1.2. RCIM – 4-way mini cassette type .................................................................................................................... 61 

2.1.3. RCD – 2-way cassette type ............................................................................................................................. 62 

2.1.4. RPC – Ceiling type .......................................................................................................................................... 63 

2.1.5. RPI – In-the-ceiling type .................................................................................................................................. 64 

2.1.6. RPIM – In-the-ceiling type ............................................................................................................................... 66 

2.1.7. RPK – Wall type ............................................................................................................................................. 67 

2.1.8. RPF and RPFI – Floor type and floor-concealed type .................................................................................... 68 

2.2. General data for Outdoor Units ............................................................................................................ 69 

2.2.1. RAS – Outdoor Units ....................................................................................................................................... 69 

2.3. Complementary systems ...................................................................................................................... 72 

2.3.1. KPI - Energy recovery ventilation units ........................................................................................................... 72 

2.3.2. Econofresh kit ................................................................................................................................................. 73 

2.4. Component data .................................................................................................................................. 73 

2.4.1. Fan and exchanger of indoor units .................................................................................................................. 73 

2.4.2. Fan and exchanger of outdoor units ............................................................................................................... 78 

2.4.3. Compressor ..................................................................................................................................................... 79 

2

General data 

2.1. General data for indoor units 

2.1.1. RCI – 4-way cassette type 

RCI MODEL 

60 

RCI-1.5 

FSN2E 

RCI-2.0 

FSN2E 

TCGB0052-rev.1-07/2009 

RCI-2.5 

FSN2E 

RCI-3.0 

FSN2E 

Electrical power supply 1~230V, 50 Hz 

Nominal cooling 

capacity 

Nominal heating 

capacity 

Air flow rate 

(Hi/Me/Lo) 

RCI-4.0 

FSN2E 

RCI-5.0 

FSN2E 

RCI-6.0 

FSN2E 

kW 3.6 5.0 6.3 7.1 10.0 12.5 14.0 

kW 4.0 5.6 7.0 8.0 11.2 14.0 16.0 

m 3 /min 15/14/12 16/14/12 20/17/15 26/23/20 32/28/24 34/29/25 37/32/27 

Electrical power of fan W 56 56 56 56 108 108 108 

Sound pressure level 

(Hi/Me/Lo) 

dB(A) 32/30/28 32/30/28 32/30/28 34/32/30 38/35/33 39/37/35 42/40/36 

Sound power level dB(A) 46 46 46 48 52 53 56 

External 

dimensions 

Height mm 248 248 248 298 298 298 298 

Width mm 840 840 840 840 840 840 840 

Depth mm 840 840 840 840 840 840 840 

Net weight Kg 23 24 24 26 29 29 29 

Refrigerant R410A (nitrogen loaded in factory for corrosion-resistance) 

Refrigerant piping 

connection 

Flare-nut connection (with flare nuts) 

Size 

Liquid Piping mm 

Gas piping 

(in) 

mm 

(in) 

ø6.35 (1/4) 

ø12.7 (1/2) 

ø6.35 (1/4) ø9.53 (3/8) ø9.53 (3/8) ø9.53 (3/8) ø9.53 (3/8) ø9.53 (3/8) 

ø15.88 (5/8) ø15.88 (5/8) ø15.88 (5/8) ø15.88 (5/8) ø15.88 (5/8) ø15.88 (5/8) 

Condensate drain 

connection 

mm ø32 OD ø32 OD ø32 OD ø32 OD ø32 OD ø32 OD ø32 OD 

Maximum electrical 

power consumption 

A 5 5 5 5 5 5 5 

Packaging 

measurements 

m3 0.22 0.22 0.22 0.26 0.26 0.26 0.26 

Adaptable air panel 

model 

- P-N23WA 

Color (Munsell code) - Spring white (4.1Y8.5 / 0.7) 

External 

dimensions 

Height 

Width 

Depth 

mm 

mm 

mm 

37 

950 

950 

37 

950 

950 

37 

950 

950 

37 

950 

950 

37 

950 

950 

37 

950 

950 

37 

950 

950 

Net weight Kg 6 6 6 6 6 6 6 

Packaging 

measurements 

m3 0.08 0.08 0.08 0.08 0.08 0.08 0.08 

Remote control - PC-ART 

NOTE: 

1. The nominal cooling and heating capacity is the 

combined capacity of the 

UTOPIA DC INVERTER system and is based on the 

EN14511. 

Operating conditions Cooling Heating 

Indoor air inlet 

DB 27.0 °C 20.0 °C 

temperature 

WB 19.0 °C 

Outdoor air inlet 

temperature 

Piping length: 7.5 meters; Piping lift: 0 meters 

DB: Dry Bulb; WB: Wet Bulb 

DB 35.0 °C 7.0 °C 

WB 6.0 °C 

OD: Outer diameter 

2. The sound pressure level is based on the following 

conditions: 

- 1.5 meters beneath the unit. 

- Power supply voltage is 230 V. 

The above data were measured in an anechoic 

chamber, so reflected sound should be taken into 

consideration when installing the unit. 

3. Panel P-N23WA is equipped with an automatic 

swing louver system. 

4. Refer to chapter 4 “Combinability” for details about 

the capacities of the indoor units.

General data 

2.1.2. RCIM – 4-way mini cassette type 

RCIM MODEL RCIM-1.5FSN2 RCIM-2.0FSN2 


Nominal cooling capacity kW 3.6 5.0 

Nominal heating capacity kW 4.0 5.6 

Air flow rate 

(Hi/Me/Lo) 

m3 /min 15/13.5/12 16/14/12 

Electrical power of fan W 52 52 


(Hi/Me/Lo) 

61 

TCGB0052-rev.1-07/2009 

dB(A) 38/35/33 42/39/37 

Sound power level dB(A) 62 62 

External 

dimensions 

Height mm 295 295 

Width mm 570 570 

Depth mm 570 570 

Net weight Kg 17 17 

Refrigerant - R410A (nitrogen loaded in factory for corrosion-resistance) 

Refrigerant piping connection - Flare-nut connection (with flare nuts) 

Size 

Liquid piping mm (in) ø6.35 (1/4) ø6.35 (1/4) 

Gas piping mm (in) ø12.7 (1/2) ø15.88 (5/8) 

Condensate drain connection mm ø32 OD ø32 OD 

Maximum electrical power 

consumption 

A 5 5 

Packaging measurements m3 0.13 0.13 

Adaptable air panel model - P-N23WAM 

Color (Munsell code) - Plaster white (4.1Y8.5 / 0.7) 

External 

dimensions 




Net weight Kg 3.5 3.5 

Packaging measurements m 3 0.07 0.07 


NOTE: 




EN14511. 



DB 27.0 °C 20.0 °C 

temperature 

WB 19.0 °C 


temperature 



DB 35.0 °C 7.0 °C 

WB 6.0 °C 



conditions: 

- 1.5 meters beneath the unit. 





3. Panel P-N23WAM is equipped with an automatic 

swing louver system. 

4. Refer to chapter 4 “Combinability” for details about 

the capacities of the indoor units. 

2

General data 

2.1.3. RCD – 2-way cassette type 

RCD MODEL 

62 

RCD-1.5 

FSN2 

TCGB0052-rev.1-07/2009 

RCD-2.0 

FSN2 

RCD-2.5 

FSN2 


RCD-3.0 

FSN2 

RCD-4.0 

FSN2 

RCD-5.0 

FSN2 

Nominal cooling capacity kW 3.6 5.0 6.3 7.1 10.0 12.5 

Nominal heating capacity kW 4.0 5.6 7.0 8.0 11.2 14.0 

Air flow rate 

(Hi/Me/Lo) 

m3 /min 13/11/9 15/13/11 19/16/14 19/16/14 28/24/21 34/29/25 

Electrical power of fan W 35 35 55 55 35x2 55x2 


(Hi/Me/Lo) 

dB(A) 35/32/30 35/32/30 38/34/31 38/34/31 40/36/33 43/40/36 

Sound power level dB(A) 49 49 52 52 54 62 

External 

dimensions 

Height mm 298 298 298 298 298 298 

Width mm 860 860 860 860 1420 1420 

Depth mm 620 620 620 620 620 620 

Net weight Kg 27 27 30 30 48 48 



Size 

Liquid piping mm (in) 

Gas piping mm (in) 

Ø6.35 

(1/4) 

Ø12.7 

(1/2) 

Ø6.35 

(1/4) 

Ø15.88 

(5/8) 

Ø9.53 

(3/8) 

Ø15.88 

(5/8) 

Ø9.53 

(3/8) 

Ø15.88 

(5/8) 

Ø9.53 

(3/8) 

Ø15.88 

(5/8) 

Ø9.53 

(3/8) 

Ø15.88 

(5/8) 

Condensate drain connection mm Ø32 OD Ø32 OD Ø32 OD Ø32 OD Ø32 OD Ø32 OD 


consumption 

A 5 5 5 5 5 5 

Packaging measurements m3 0.23 0.23 0.23 0.23 0.37 0.37 

Standard accessories - Suspension brackets 

Adaptable air panel model - P-N23DWA P-N46DWA 

Color (Munsell code) - Silky white 

External 

dimensions 

Height mm 30+10 30+10 30+10 30+10 30+10 30+10 

Width mm 1100 1100 1100 1100 1660 1660 

Depth mm 710 710 710 710 710 710 

Net weight Kg 6 6 6 6 8 8 



NOTE: 


2. The sound pressure level is based on the 


following conditions: 

combined capacity of the UTOPIA DC INVERTER 

system and is based on the EN14511. 

- 

- 

1.5 meters beneath the unit. 

Power supply voltage is 230 V. 



DB 27.0 °C 20.0 °C 

temperature 

WB 19.0 °C 


temperature 



DB 35.0 °C 7.0 °C 

WB 6.0 °C 

The above data were measured in an 

anechoic chamber, so reflected sound should 

be taken into consideration when installing the 

unit. 

3. Panels P-N23DWA and P-N46DWA are 

equipped with an automatic swing louver 

system. 

4. Refer to chapter 4 “Combinability” for details 

about the capacities of the indoor units.

General data 

2.1.4. RPC – Ceiling type 

RPC MODEL 

63 

RPC-2.0 

FSN2E 

TCGB0052-rev.1-07/2009 

RPC-2.5 

FSN2E 

RPC-3.0 

FSN2E 


RPC-4.0 

FSN2E 

RPC-5.0 

FSN2E 

RPC-6.0 

FSN2E 



Air flow rate 

(Hi/Me/Lo) 

m 3 /min 15/13/10 18/16/12 21/17/15 30/24/19 35/28/21 37/32/27 

Electrical power of fan W 75 75 75 145 145 145 


(Hi/Me/Lo) 

dB(A) 44/42/38 46/43/41 48/45/42 49/45/39 49/46/41 50/48/44 


External 

dimensions 

Height mm 163 163 163 225 225 225 

Width mm 1094 1314 1 314 1314 1574 1574 

Depth mm 625 625 625 625 625 625 

Net weight Kg 28 31 31 35 41 41 

Color (Munsell code) Spring white (4.1Y 8.5 / 0.7) 


Refrigerant piping connection Flare-nut connection (with flare nuts) 

Size 

Liquid piping mm (in) 

Ø6.35 

(1/4) 

Ø9.53 

(3/8) 

Ø9.53 

(3/8) 

Ø9.53 

(3/8) 

Ø9.53 

(3/8) 

Ø9.53 

(3/8) 

Gas piping mm (in) Ø15.88 (5/8) Ø15.88 (5/8) Ø15.88 (5/8) Ø15.88 (5/8) Ø15.88 (5/8) Ø15.88 (5/8) 

Condensate drain connection mm Ø25 OD Ø25 OD Ø25 OD Ø25 OD Ø25 OD Ø25 OD 


consumption 

A 5 5 5 5 5 5 

Packaging measurements m 3 0.24 0.29 0.29 0.36 0.43 0.43 


NOTE: 






DB 27.0 °C 20.0 °C 

temperature 

WB 19.0 °C 


temperature 



DB 35.0 °C 7.0 °C 

WB 6.0 °C 




- 1 meter beneath the unit. 

1 meter from the impulse louver 


The above data were measured in an 

anechoic chamber, so reflected sound should 

be taken into consideration when installing the 

unit. 


about the capacities of the indoor units. 

2

General data 

2.1.5. RPI – In-the-ceiling type 

¡ 

RPI-(1.5~6.0)FSN2E 

RPI MODEL 

64 

RPI-1.5 

FSN2E 

TCGB0052-rev.1-07/2009 

RPI-2.0 

FSN2E 

RPI-2.5 

FSN2E 

RPI-3.0 

FSN2E 


RPI-4.0 

FSN2E 

RPI-5.0 

FSN2E 

Nominal cooling capacity kW 3.6 5.0 6.3 7.1 10.0 12.5 14.0 

Nominal heating capacity kW 4.0 5.6 7.0 8.0 11.2 14.0 16.0 

RPI-6.0 

FSN2E 

Air flow rate 

(Hi/Me/Lo) to (SP-00) 

m³/min 10/10/9 16/15/13 19/17/15 22/20/17 30/28/25 35/32/28 36/33/29 

Static pressure 

(Hi) to (SP-01/SP-00/SP-02) 

Pa 45/25/25 80/50/25 80/50/25 120/80/40 120/80/25 120/80/25 120/80/25 

Electrical power of fan W 40 50 50 215 200 215 365 


(Hi/Me/Lo) to (SP-00) 

dB(A) 34/34/31 33/31/29 35/33/30 35/35/31 37/36/35 39/38/36 40/39/38 

Sound power level dB(A) 56 59 60 60 62 63 64 

External 

dimensions 

Height mm 197 275 275 275 275 275 275 

Width mm 1084 1084 1084 1084 1474 1474 1474 

Depth mm 600 600 600 600 600 600 600 

Net weight Kg 29.5 35 37 37 48 49 49 



Size 

Liquid piping 

Gas piping 

mm 

(in.) 

mm 

(in.) 

ø6.35 

(1/4) 

ø12.7 

(1/2) 

ø6.35 

(1/4) 

ø15.88 

(5/8) 

ø9.53 

(3/8) 

ø15.88 

(5/8) 

ø9.53 

(3/8) 

ø15.88 

(5/8) 

ø9.53 

(3/8) 

ø15.88 

(5/8) 

ø9.53 

(3/8) 

ø15.88 

(5/8) 

ø9.53 

(3/8) 

ø15.88 

(5/8) 

Condensate drain connection mm ø32 OD ø32 OD ø32 OD ø32 OD ø32 OD ø32 OD ø32 OD 


consumption 

A 5 5 5 5 5 5 5 

Packaging measurements m³ 0.18 0.25 0.25 0.25 0.33 0.33 0.33 

Standard accessories - Air filter, drain pump 


NOTE: 



UTOPIA DC INVERTER system and is based on 

the EN14511. 



DB 27.0 °C 20.0 °C 

temperature 

WB 19.0 °C 


DB 35.0 °C 7.0 °C 

temperature 

WB 6.0 °C 

Piping length: 7.5 meters; piping height: 0 meters 



SP: Static pressure 



- 1.5 meters beneath the unit (no ceiling under 

the unit), 1 m from suction duct and 2 m from 

discharge duct. 

- Voltage of the power source is 230 V. 



consideration when installing the unit.

General data 

¡ 

RPI-(8.0/10.0)FSN2E 

RPI MODEL RPI-8.0FSN2E RPI-10.0FSN2E 

Electric power supply 1~230V. 50Hz 

Nominal cooling capacity kW 20.0 25.0 

Nominal heating capacity kW 22.4 28.0 

Airflow rate 

(Hi/Me/Lo) (LSP) 

m³/min 66/66/59 75/75/68 


(Hi) to (SP-01/SP-00/SP-02) 

Pa 220/180/- 220/180/- 

Electrical power of fan W 1250 1250 


(Hi/Me/Lo) (SP-00) 

dB(A) 54/54/51 55/55/52 


External 

dimensions 


Width mm 1.592 1.592 



Refrigerant - R410A (nitrogen charged in factory for corrosion-resistance) 

Refrigerant pipe connection - Brazed connection 

Size 

Liquid piping 

Gas piping 

65 

mm 

(in) 

mm 

(in) 

TCGB0052-rev.1-07/2009 

Ø9.53 

(3/8) 

Ø19.05 (*1) 

(3/4) 

Ø9.53 (*2) 

(3/8) 

Ø22.2 (*1) 

(7/8) 

Condensate drain connection mm Ø25 OD Ø25 OD 


consumption 

A 10 10 

Packaging measurements m³ 0.68 0.68 

Standard accessories - Air filter 

Remote control switch - PC-ART 

NOTE: 

1. The nominal cooling and heating capacity is 

the combined capacity of the UTOPIA DC 

INVERTER system and is based on EN14511. 

Operating Conditions Cooling Heating 


temperature 


temperature 

DB 27.0°C 20.0°C 

WB 19.0°C 

DB 35.0°C 7.0°C 

WB 6.0°C 



OD: Outer Diameter 

(*1) : Factory supplied pipe adapter 

to Ø25.4 (DC INVERTER system) 

factory supplied with the indoor unit. 

(*2) : Pipe adapter to Ø12.7 is factory 

supplied with the indoor unit. : 

SP: Static Pressure 

2. The sound pressure level is based on following 

conditions: 


the unit). 1m from suction duct and 2m from 


- Voltage of the power source is 230V. 

The above was measured in an anechoic 



2

General data 

2.1.6. RPIM – In-the-ceiling type 




66 

RPIM MODEL RPIM-1.5FSN2E 


Nominal cooling capacity kW 3.6 

Nominal heating capacity kW 4.0 

Air flow rate (Hi/Me/Lo) (SP-00) m³/min 10/10/8.5 


Hi(HSP)/Hi(LSP) 

Pa 45/10 

Fan motor W 33 


(Hi/Lo) 

TCGB0052-rev.1-07/2009 

dB(A) 33/29 

Sound power level 

(Hi/Lo) 

dB(A) 51 

Height mm 275 

External 

dimensions 

Width mm 702 

Depth mm 600 

Net weight Kg 26 



Size 

Liquid piping mm (in) Ø6.35 (1/4) 

Gas piping mm (in) Ø12.7 (1/2) 

Condensate drain connection mm Ø25 OD 

Maximum current A 5.0 

Packaging measurements m³ 0.17 

Standard accessories - Air filter 


NOTE: 



DB 27.0 °C 20.0 °C 

temperature 

WB 19.0 °C 


DB 35.0 °C 7.0 °C 

temperature 

WB 6.0 °C 




SP: Static pressure 


conditions: 








General data 

2.1.7. RPK – Wall type 

RPK MODEL RPK-1.5FSN2M RPK-2.0FSN2M RPK-2.5FSN2M RPK-3.0FSN2M RPK-4.0FSN2M 


Nominal cooling capacity kW 3.6 5.0 6.3 7.1 10.0 

Nominal heating capacity kW 4.0 5.6 7.0 8.0 11.2 

Air flow rate 

(Hi/Me/Lo) 

67 

m³/ 

min 

TCGB0052-rev.1-07/2009 

11/10/9 14/12/10 17/16/14 17/16/14 22/20/17 

Electrical power of fan W 20 20 40 40 40 


(Hi/Me/Lo) 

dB(A) 40/38/36 41/39/37 43/40/37 43/40/37 49/46/43 

Sound power level 54 56 59 59 64 

External 

dimensions 

Height mm 280 295 333 333 333 

Width mm 780 1030 1150 1150 1150 

Depth mm 210 208 245 245 245 

Net weight Kg 10 12 18 18 18 

Color (Munsell code) Pearl white 



connection 

Flare-nut connection (with flare nuts) 

Size 

Liquid piping 

Gas piping 

mm 

(in) 

mm 

(in) 

Ø6.35 (1/4) 

Ø12.7 (1/2) 

Ø6.35 (1/4) 

Ø15.88 (5/8) 

Ø9.53 (3/8) 

Ø15.88 (5/8) 

Ø9.53 (3/8) 

Ø15.88 (5/8) 

Ø9.53 (3/8) 

Ø15.88 (5/8) 

Condensate drain 

connection 

Ø26 OD Ø26 OD Ø26 OD Ø26 OD Ø26 OD 


consumption 

A 5 5 5 5 5 

Packaging measurements m³ 0.07 0.11 0.13 0.13 0.13 

Standard accessories Mounting brackets 

Remote control PC-ART 


NOTE: 






DB 27.0 °C 20.0 °C 

temperature 

WB 19.0 °C 


temperature 



DB 35.0 °C 7.0 °C 

WB 6.0 °C 



- 1 meter beneath the unit. 




chamber, so reflected sound should be taken 

into consideration when installing the unit. 


about the capacities of the indoor units. 

2

General data 

2.1.8. RPF and RPFI – Floor type 

and floor-concealed type 

RPF and RPFI MODELS 

68 

RPF-1.5 

FSN2E 

TCGB0052-rev.1-07/2009 

RPF-2.0 

FSN2E 

RPF-2.5 

FSN2E 


RPFI-1.5 

FSN2E 

RPFI-2.0 

FSN2E 



Air flow rate 

(Hi/Me/Lo) 

RPFI-2.5 

FSN2E 

m 3 /min 12/10/9 16/14/11 16/14/11 12/10/9 16/14/11 16/14/11 

Electrical power of fan W 28 45 45 28 45 45 


(Hi/Me/Lo) 

dB(A) 38/35/31 39/36/32 42/38/34 38/35/31 39/36/32 42/38/34 


External 

dimensions 

Height mm 630 630 630 620 620 620 

Width mm 1170 1420 1420 973 1223 1223 

Depth mm 220 220 220 220 220 220 

Net weight Kg 28 33 34 23 27 28 

Color (Munsell code) - Spring white (4.1Y 8.5/0.7) 


Refrigerant piping connection Flare-nut connection (with flare nuts) 

Size 

Liquid Piping 

Gas piping 

mm 

(in) 

mm 

(in) 

Ø6.35 

(1/4) 

Ø12.7 

(1/2) 

Ø6.35 

(1/4) 

Ø15.88 

(5/8) 

Ø9.53 

(3/8) 

Ø15.88 (5/8) 

Ø6.35 

(1/4) 

Ø12.7 

(1/2) 

Ø6.35 

(1/4) 

Ø15.88 

(5/8) 

Ø9.53 

(3/8) 

Ø15.88 

(5/8) 

Condensate drain connection mm Ø18.5 OD Ø18.5 OD Ø18.5 OD Ø18.5 OD Ø18.5 OD Ø18.5 OD 


consumption 

A 5 5 5 5 5 5 




NOTE: 

1. The nominal cooling and heating capacity 

is the combined capacity of the UTOPIA 

DC INVERTER system and is based on the 

EN14511. 


Indoor air inlet DB 27.0 °C 20.0 °C 

temperature 

WB 19.0 °C 


temperature 

DB 35.0 °C 7.0 °C 

WB 6.0 °C 




conditions: 

- 1 m from floor level 

1 m from the unit front surface. 





3. Refer to chapter 4 “Combinability” for details about the 

capacities of the indoor units.

General data 

2.2. General data for Outdoor Units 

2.2.1. RAS – Outdoor Units 

¡ 

RAS-(2/2.5)HVRN1 

RAS MODEL RAS-2HVRN1 RAS-2.5HVRN1 


Nominal cooling capacity 

(Min/Nom/Max) 

Nominal heating capacity 

(Min/Nom/Max) 

Energy efficiency in cooling 

mode (EER) 

Energy efficiency coefficient in 

heating mode (COP) 

69 

kW 2.2/5.0/5.6 2.2/6.0/6.3 

kW 2.2/5.6/7.1 2.2/7.0/7.1 

- 3.97 3.28 

- 4.75 3.80 

Color (Munsell code) - Beige (5Y 7/2) 


(night mode) 

dB(A) 45(43) 46(44) 


External 

dimensions 





Refrigerant - R410A 

Flow control - Micro-computer control expansion valve 

Compressor - Hermetic rotary 

Q´ty - 1 1 

Power kW 0.95(4) 1.10(4) 

Heat exchanger Multi-pass cross-finned tube 

Condenser fan - Propeller fan 

Q´ty - 1 1 

Air flow rate m³/min 35 35 

Power W 40 40 

Refrigerant piping connections - Flare-nut connection (with flare nuts) 

Size 

Liquid piping 

Gas piping 

mm (in) 

mm (in) 

Ø6.35 

(1/4) 

Ø12.7 

(1/2) 

Ø6.35 

(1/4) 

Ø12.7 

(1/2) 

Refrigerant charge Kg 1.6 1.6 


consumption 

A 13.0 16.0 


NOTE: 




EN14511. 



conditions: 

- 1 meter from the frontal surface of the unit. 

1.5 meters from floor level. 




DB 27.0 °C 20.0 °C 

temperature 

WB 19.0 °C 


DB 35.0 °C 7.0 °C 

temperature 

WB 6.0 °C 



TCGB0052-rev.1-07/2009 




The sound pressure level is based on the cooling 

mode. In case of using heating mode, the sound 

pressure level increases by approximately 2 dB. 

3. The COP and EER have been calculated with RCI- 

FSN2E model indoor units 

2

General data 

¡ 

RAS-(3~6)HVRNS(E) 

RAS MODEL RAS-3HVRNS RAS-4HVRNSE RAS-5HVRNSE RAS-6HVRNSE 



(Min/Nom/Max) 


(Min/Nom/Max) 


mode (EER) 



70 

kW 3.4/7.1/8.0 4.9/10.0/11.2 5.7/12.5/14.0 6.0/14.0/16.0 

kW 3.4/8.0/9.0 5.0/11.2/12.5 6.0/14.0/16.0 6.0/16.0/18.0 

- 3.06 3.01 3.22 2.81 

- 3.29 3.48 3.41 3.28 

Color (Munsell code) - T Beige (5Y 7/2) Natural grey (1.0Y8.5/0.5) 


(night mode) 

dB(A) 48(46) 50(48) 52(50) 55(53) 

Sound power level dB(A) 66 68 70 72 

External 

dimensions 

Height mm 600 800 800 800 

Width mm 792 950 950 950 

Depth mm 300 370 370 370 

Net weight Kg 44 81 85 85 


Flow control - Microprocessor-controlled expansion valve 

Compressor - DC inverter driven 

Q´ty - 1 1 1 1 

Power kW 1.30 2.20 3.00 3.00 

Heat exchanger - Multi-pass cross-finned tube 


Q´ty - 1 1 1 1 

Air flow rate m³/min 41 62 80 80 

Power W 40 70 170 170 

Refrigerant piping connections - Flare-nut connection (factory supplied) 

Size 

Liquid piping 

Gas piping 

mm 

(in) 

mm 

(in) 

Ø9.53 

(3/8) 

Ø15.88 

(5/8) 

Ø9.53 

(3/8) 

Ø15.88 

(5/8) 

Ø9.53 

(3/8) 

Ø15.88 

(5/8) 

Ø9.53 

(3/8) 

Ø15.88 

(5/8) 

Refrigerant charge Kg 1.90 2.80 3.30 3.30 


consumption 

A 18.0 24.0 26.0 26.0 

Packaging measurements m³ 0.26 0.43 0.43 0.43 


NOTE: 



conditions: 



system and is based on the EN14511 






temperature 

DB 

WB 

27.0 °C 

19.0 °C 

20.0 °C 




DB 35.0 °C 

temperature 

WB 



7.0 °C 

6.0 °C 




3. The COP and EER have been calculated with 

RCI-FSN2E model indoor units. 

TCGB0052-rev.1-07/2009

General data 

¡ 


RAS MODEL RAS-8HRNSE RAS-10HRNSE 



(Min/Nom/Max) 


(Min/Nom/Max) 


mode (EER) 



71 

kW 9.0/20.0/22.4 11.2/25.0/28.0 

kW 8.3/22.4/25.0 9.0/28.0/31.5 

- 3.01 2.81 

- 3.52 3.21 

Color (Munsell code) - Natural Grey (1.0Y8.5/0.5) 


(night mode) 

dB(A) 53(51) 60(56) 


External 

dimensions 






Flow control - Microprocessor-controlled expansion valve 

Compressor - Hermetic (scroll) 

Q´ty - 1 1 

Power kW 4.00 5.80 

Heat exchanger Multi-pass cross-finned tube 


Q´ty - 1+1 1+1 

Air flow rate m³/min 127 146 

Power W 170+120 170+170 

Refrigerant piping connections Flare-nut connection 

Size 

Liquid Piping 

Gas piping 

mm 

(in) 

mm 

(in) 

Ø9.53 

(3/8) 

Ø25.4 

(1) 

Ø9.53(*) 

(3/8) 

Ø25.4 

(1) 

Refrigerant charge Kg 6.0 6.2 


consumption 

A 20.0 23.0 


NOTE: 



conditions: 





system and is based on the EN14511 


Operating conditions 


temperature 


temperature 

DB 

WB 

DB 

WB 

Cooling 

27.0 °C 

19.0 °C 

35.0 °C 

Heating 

20.0 °C 

7.0 °C 

6.0 °C 








3. The COP and EER have been calculated with RCI- 


FSN2E model indoor units 

(*) In case of a piping length of 30 m or longer, 

Ø12.7mm (1/2) pipe is required. 

TCGB0052-rev.1-07/2009 

2

General data 

2.3. Complementary systems 

2.3.1. KPI - Energy recovery ventilation units 

KPI MODEL KPI-502E1E KPI-802E1E KPI-1002E1E KPI-1502E1E KPI-2002E1E KPI-3002H1E 

Hi 

500 800 1000 1500 2000 3000 

Air flow rate Med m³/h 480 740 960 1440 1920 2870 

Low 450 680 900 1320 1780 2750 

External 

pressure 

Temperature 

Hi 

Med 

Low 

Pa 

90 

85 

75 

90 

80 

65 

150 

140 

120 

150 

135 

110 

160 

145 

125 

120 

110 

110 

exchange 

efficiency 

Enthalpy 

Hi % 75 75 78 78 78 54 

exchange 

efficiency for 

heating 

Enthalpy 

Hi % 65 67 68 68 66.5 46 

exchange 

efficiency for 

cooling 

Hi % 60 61 62 62.5 61.5 46 

Sound 

pressure level 

Hi dB(A) 38 39 40 42 44 45 

Sound power 

level 

Hi dB(A) 52 54 55 59 63 64 

External 

dimensions 

Height 

Width 

Depth 

mm 

330 

1130 

925 

385 

1210 

1015 

385 

1650 

1215 

525 

1800 

1130 

525 

1800 

1430 

650 

1245 

2124 

Net weight Kg 53 62 99 113 135 209 

Packaging 

measurements 

m3 0.34 0.47 0.85 1.07 1.35 1.72 

Fan 

- 

Q´ty - 2 2 2 2 2 2 

Type - Multi-blade turbo fan (steel) 

Power W 135+135 155+155 380+380 490+490 490+490 680+680 

NOTE: 

1. The exchange efficiency is based on the EN14511 

standard. 



temperature 


temperature 


72 

DB 27.0 °C 20.0 °C 

WB 19.0 °C 

DB 35.0 °C 7.0 °C 

WB 6.0 °C 

TCGB0052-rev.1-07/2009 


conditions: 





3. The above was measured in an anechoic 



General data 

2.3.2. Econofresh kit 

OD ECONOFRESH KIT MODEL EF-5NE 

Combined indoor unit model - RPI-5.0FSN2E 

Height 

254 

External dimensions 

Width mm 

1350+59 

Depth 270 

Net weight Kg 12.5 

Nº of damper motors - 1 

Approximate packing measurements m3 0.13 

Standard accessories - Fresh outdoor air inlet thermistor 

2.4. Component data 


Fan unit 

The component data indicated are the following: 

Indoor unit heat exchanger and fan unit: 

- 

- 

- 

- 

- 

- 

- 

- 

- 

RCI - 4-way cassette type 

RCIM - 4-way cassette type 

RCD - 2-way cassette type 

RPC - Ceiling type 

RPI - In-the-ceiling type 

RPIM - In-the-ceiling type 

RPK - Wall type 

RPF - Floor type 

RPFI - Floor-concealed type 

Outdoor unit: Heat exchanger. fan unit and compressor 

2.4.1. Fan and exchanger of indoor units 

¡ 

RCI – 4-way cassette type 

RCI MODEL 

73 

RCI-1.5 

FSN2E 

TCGB0052-rev.1-07/2009 

RCI-2.0 

FSN2E 

RCI-2.5 

FSN2E 

RCI-3.0 

FSN2E 

RCI-4.0 

FSN2E 

RCI-5.0 

FSN2E 

RCI-6.0 

FSN2E 

Heat exchanger type - Multi-pass cross-finned tube 

Material - Copper piping 

Outer diameter Ø mm 7 7 7 7 7 7 7 

Piping Rows - 2 2 2 2 3 3 3 

Number of tubes/ 

coil 

- 8 16 16 20 30 30 30 

Fin 

Material 

Pitch 

- 

mm 1.5 1.5 1.5 

Aluminum 

1.5 1.5 1.5 1.5 

Maximum operating 


MPa 4.15 4.15 4.15 4.15 4.15 4.15 4.15 

Total area of front m² 0.38 0.38 0.38 0.47 0.47 0.47 0.47 

Number of coils/unit - 1 1 1 1 1 1 1 

Type Multi-blade turbo fan 

Number/unit - 1 1 1 1 1 1 1 

Fan Outer diameter mm 490 490 490 490 490 490 490 

Nominal air flow 

(Hi/Me/Lo) 

m3 /min 15/14/12 16/14/12 20/17/15 26/23/20 32/28/24 34/29/25 37/32/27 

Type - Drip-proof enclosure 

Motor 

Starting method - DC control 

Power W 56 56 56 56 108 108 108 

Q´ty - 1 1 1 1 1 1 1 

Insulation class - E E E E E E E 

2


Fan unit 


Fan unit 

General data 

¡ 

RCIM – 4-way cassette type 

RCIM model RCIM-1.5FSN2 RCIM-2.0FSN2 



Piping 

Outer diameter 

Rows 

Ø mm 

- 

7 

2 

7 

2 

Number of tubes/coil - 14 14 

Fin 

Material 

Pitch mm 1.5 

Aluminum 

1.5 

Maximum operating pressure MPa 4.15 4.15 

Total area of front m² 0.19 0.19 

Number of coils/unit - 1 1 

Type Multi-blade turbo fan 

Number/unit - 1 1 

Fan Outer diameter mm 298 298 

Nominal air flow 

(Hi/Me/Lo) 

m3 /min 15/13.5/12 16/14/12 

Type Drip-proof enclosure 

Starting method DC control 

Motor Power W 52 52 

¡ 

Q´ty - 1 1 

Insulation class - E E 

RCD – 2-way cassette type 

RCD model 

74 

RCD-1.5 

FSN2 

TCGB0052-rev.1-07/2009 

RCD-2.0 

FSN2 

RCD-2.5 

FSN2 

RCD-3.0 

FSN2 


RCD-4.0 

FSN2 

RCD-5.0 

FSN2 


Piping Outer diameter Ø mm 7 7 7 7 7 7 

Rows - 2 2 2 2 2 2 

Fin 

Material 

Pitch 

- 

mm 1.6 1.6 

Aluminum 

1.6 1.6 1.6 1.6 

Maximum operating pressure MPa 4.15 4.15 4.15 4.15 4.15 4.15 

Total area of front m² 0.36 0.36 0.36 0.63 0.63 0.63 

Number of coils/unit - 1 1 1 1 1 1 

Type - Multi-blade turbo fan 

Number/unit - 1 1 1 2 2 2 

Fan Outer diameter mm 360 360 360 360 360 360 

Air flow rate 

(Hi/Me/Lo) 

m3 /min 13/11/9 15/13/11 19/16/14 19/16/14 28/24/21 34/29/25 



Motor Power W 35 55 55 55 35x2 55x2 

Q´ty - 1 1 1 1 2 2 

Insulation class - E E E E E E


Fan unit 


Fan unit 

¡ 

General data 

RPC – Ceiling type 

RPC model 

75 

RPC-2.0 

FSN2E 

TCGB0052-rev.1-07/2009 

RPC-2.5 

FSN2E 

RPC-3.0 

FSN2E 

RPC-4.0 

FSN2E 

RPC-5.0 

FSN2E 

RPC-6.0 

FSN2E 



Piping 


Rows 

Ø mm 

- 

7 

3 

7 

3 

7 

3 

7 

3 

7 

3 

7 

3 

Number of tubes/coil - 26 26 26 40 40 40 

Fin 

Material 

Pitch 

- 

mm 1.8 1.8 

Aluminum 

1.8 1.6 1.6 1.6 




Type - Multi-blade centrifugal fan 

Number/unit - 3 3 4 3 4 4 

Fan Outer diameter Ø mm 101 101 101 136 136 136 

Motor 

¡ 

Flow 

(Hi/Me/Lo) 

m 3 / 

min 

15/13/10 18/16/12 21/17/15 30/24/19 35/28/21 37/32/37 


Starting method - Permanent condenser 

Power W 75 75 75 145 145 145 

Q´ty - 1 1 1 1 1 1 

Insulation class - B B B B B B 

RPI – In-the-ceiling type (RPI-(1.5~6.0)FSN2E) 

RPI model 

RPI-1.5 

FSN2E 

RPI-2.0 

FSN2E 

RPI-2.5 

FSN2E 

RPI-3.0 

FSN2E 

RPI-4.0 

FSN2E 

RPI-5.0 

FSN2E 

RPI-6.0 

FSN2E 



Piping 


Rows 

Ø mm 

- 

7 

2 

7 

2 

7 

3 

7 

3 

7 

3 

7 

3 

7 

3 

Number of tubes/coil - 24 24 36 36 36 36 48 

Fin 

Material 

Pitch 

- 

mm 1.9 1.9 1.9 

Aluminum 

1.9 1.9 1.9 1.9 

Maximum operating pressure MPa 4.15 4.15 4.15 4.15 4.15 4.15 4.15 

Total area of front m² 0.12 0.21 0.21 0.30 0.30 0.30 0.30 

Number of coils/unit - 1 1 1 1 1 1 1 

Fan 

Motor 


Number/unit - 1 2 2 2 2 2 2 

Outer diameter Ø mm 136 180 180 180 180 180 180 

Air flow rate 

(Hi/Me/Lo) 

m³/min 10/10/9 16/15/13 19/17/15 22/20/17 30/28/25 35/32/28 36/33/29 



Power W 40 50 50 215 200 215 365 

Q´ty - 1 1 1 1 1 1 1 

Insulation class - B B B F B B F 

2


Fan unit 


Fan unit 

General data 

¡ 

RPI – In-the-ceiling type (RPI-8.0~10.0FSN2E) 

RPI model RPI-8.0FSN2E RPI-10.0FSN2E 



Piping 

Outer 

diameter 

Liquid 

Gas 

Ø mm 

9.53 

19.05 

9.53 

22.2 

Rows - 3 4 


Fin 

Material 

Pitch 

- 

mm 1.8 

Aluminium 

1.8 




Fan 

Motor 

¡ 



Outer diameter Ø mm 240 240 

Air flow rate 

(Hi/Me/Lo) 

76 

m³/min 66/66/59 75/75/68 



Power W 1250 1250 

Q´ty - 1 1 

Insulation class - F F 

RPIM – In-the-ceiling type (RPIM-1.5FSN2E) 

RPIM Model RPIM-1.5 FSN2E 



Outer diameter Ø mm 7.00 

Piping Rows - 2 

Number of tubes/ 

coil 

- 24 

Fin 

Material 

Pitch 

- 

mm 

Aluminum 

1.9 

Maximum operating pressure MPa 4.15 

Total area of front m² 0.12 

Number of coils/unit - 0.6 


Number/unit - 1 

Fan Outer diameter Ø mm 185 

Air flow rate 

(Hi/Me/Lo) 

m3 /min 10/10/8.5 


Motor 


Power W 33 

Q´ty - 1 

Insulation class - B 

TCGB0052-rev.1-07/2009


Fan unit 


Fan unit 

¡ 

General data 

RPK – Wall type 

RPK model RPK-1.5FSN2M RPK-2.0FSN2M RPK-2.5FSN2M RPK-3.0FSN2M RPK-4.0FSN2M 



Piping Outer diameter Ø mm 7 7 7 7 7 

Rows - 2 2 2 2 2 

Fin 

Material 

Pitch 

- 

mm 1.3 1.2 

Aluminum 

1.4 1.4 1.4 

Maximum operating pressure MPa 4.15 4.15 4.15 4.15 4.15 

Total area of front m² 0.20 0.26 0.35 0.35 0.35 

Number of coils/unit - 1 1 1 1 1 

Fan 

Motor 

¡ 

Type - Tangential fan 

Number/unit - 1 1 1 1 1 

Outer diameter Ø mm 100 100 130 130 130 

Air flow rate 

(Hi/Me/Lo) 

m3 /min 11/10/9 14/12/10 17/16/14 17/16/14 22/20/17 



Power W 20 20 40 40 40 

Q´ty - 1 1 1 1 1 

Insulation class - E E E E E 

RPF - Floor type and RPFI - Floor-concealed type 

RPF and RPFI model 

77 

RPF-1.5 

FSN2E 

TCGB0052-rev.1-07/2009 

RPF-2.0 

FSN2E 

RPF-2.5 

FSN2E 

RPFI-1.5 

FSN2E 

RPFI-2.0 

FSN2E 

RPFI-2.5 

FSN2E 



Outer diameter Ø mm 7 7 7 7 7 7 

Piping Rows - 2 3 3 2 3 3 

Number of 

tubes/coil 

- 24 24 36 24 24 36 

Fin 

Material 

Pitch 

- 

mm 1.8 1.8 1.8 

Aluminum 

1.8 1.8 1.8 





Number/unit - 2 2 2 2 2 2 

Fan Outer diameter Ø mm 136 136 136 136 136 136 

Air flow rate 

(Hi/Me/Lo) 

m3 /min 12/10/9 16/14/11 16/14/11 12/10/9 16/14/11 16/14/11 



Motor Power W 28 45 45 28 45 45 

Q´ty - 1 1 1 1 1 1 

Insulation class - B B B B B B 

2


Fan unit 


Fan unit 

General data 

2.4.2. Fan and exchanger of outdoor units 

¡ 

RAS-(2~2.5)HVRN1 

Outdoor unit model RAS-2HVRN1 RAS-2.5HVRN1 



Piping 


Rows 

Ø mm 

- 

8 

2 

8 

2 


Fin 

Material 

Pitch 

- 

mm 1.45 

Aluminum 

1.45 







Revolutions rpm 850 850 

Nominal air flow/fan m3 /min 35 35 



Motor Power W 40 40 

Q´ty - 1 1 


Compressor - EU1114D6 EU1114D6 

¡ 


Outdoor unit model RAS-3HVRNS RAS-4HVRNSE RAS-5HVRNSE RAS-6HVRNSE 



Piping 


Rows 

Ø mm 

- 

8 

2 

7 

3 

7 

3 

7 

3 

Number of tubes/coil - 44 114 114 114 

Fin 

Material 

Pitch 

- 

mm 1.4 1.9 

Aluminum 

1.9 1.9 

Maximum operating pressure MPa 4.15 4.15 4.15 4.15 

Total area of front m² 0.47 0.76 1.28 1.28 

Number of coils/unit - 1 1 1 1 


Number/unit - 1 1 1 1 

Fan Outer diameter mm 449 465 465 465 

Revolutions rpm 850 625 700 820 

Nominal air flow/fan m3 /min 45 62 68 80 



Motor Power W 40 70 170 170 

Q´ty - 1 1 1 1 

Insulation class - E E E E 

Compressor - EU-1318D6 E-306AHD-27A2 E-406AHD-36A2 E-406AHD-36A2 

78 

TCGB0052-rev.1-07/2009


Fan unit 

General data 

¡ 

RAS-(8~10)HRNSE 

Outdoor unit model RAS-8HRNSE RAS-10HRNSE 



Piping 


Rows 

Ø mm 

- 

7.0 

2 

7.0 

3 


Fin 

Material 

Pitch 

- 

mm 1.9 

Aluminum 

1.9 




Type - Propeller fan 



Revolutions rpm 560+740 820+850 

Nominal air flow/fan m3 /min 127 146 


Starting method - Permanent split capacitor 

Motor Power W 170+120 170+170 

Q´ty - 2 2 


Compressor - E655DHD-65D2 E655DHD-65D2 

2.4.3. Compressor 

Model EU1318D6 EU1114D6 2YC45DXD E-306AHD-27A2 

Compressor type - Hermetic scroll Hermetic scroll Hermetic scroll Hermetic scroll 


resistance 

Motor type 

Discharge MPa 4.15 4.15 4.15 4.15 

Suction MPa 2.21 2.21 2.21 2.21 

Starting method - Inverter-driven (I.D.) Inverter-driven (I.D.) Inverter-driven (I.D.) Inverter-driven (I.D.) 

Poles - 4 4 4 4 


HAF68D1 or 

a68HES-H 

HAF68DU or 

a68HES-H 

FVC50K FVC68D 

Oil type - 

Oil quantity L 0.75 0.75 0.65 1.2 

Model E-305AHD-27D2 E-405AHD-36D2 E-406AHD-36A2 E-655DHD-65D2 

Compressor type - Hermetic scroll Hermetic scroll Hermetic scroll Hermetic scroll 


resistance 

Motor type 

Discharge MPa 4.15 4.15 4.15 4.15 

Suction MPa 2.21 2.21 2.21 2.21 

Starting method - Inverter-driven (I.D.) Inverter-driven (I.D.) Inverter-driven (I.D.) Inverter-driven (I.D.) 

Poles - 4 4 4 4 


Oil type - FVC68D FVC68D FVC68D FVC68D 

Oil quantity L 1.2 1.2 1.2 1.9 

79 

TCGB0052-rev.1-07/2009 

2

General data 

80 

TCGB0052-rev.1-07/2009

Dimensional data 

81 

TCGB0052-rev.1-07/2009 

3. Dimensional data 

This chapter shows the dimensions and minimum space required to install each unit of the new UTOPIA DC INVERTER 

ES series. 

Contents 

3. Dimensional Data ................................................................................81 

3.1. Indoor units ...................................................................................................................82 

3.1.1. 4-way cassette type models ...................................................................................................82 

3.1.2. 2-way cassette type models ...................................................................................................84 

3.1.3. Ceiling-type models ...............................................................................................................86 

3.1.4. Duct-type models ...................................................................................................................90 

3.1.5. Wall-type models....................................................................................................................95 

3.1.6. Floor-type models ..................................................................................................................98 

3.1.7. Floor-concealed models .........................................................................................................99 

3.2. Outdoor units ..............................................................................................................100 

3.3. Complementary units..................................................................................................103 

3.3.1. Total heat exchanger ............................................................................................................103 

3.3.2. Econofresh kit ......................................................................................................................106 

3


3.1. Indoor units 

3.1.1. 4-way cassette type models 

¡ 

RCI-(1.5~6.0)FSN2E/P-N23WA 

No. Description Remarks 

1 Air intake - 

2 Air outlet 4-way 

3 Refrigerant gas piping Flare: Øa 

4 Refrigerant liquid piping Flare: Øb 

5 Drain piping Ø32 (outer) 

6 Wiring hole Ø32.5 (knockout hole) 

7 Wiring hole 30x39 

8 Support for suspending the machine - 

9 Suspension bolt 4-M10 or W3/8 

10 Air duct supply connection 150x385 (knockout hole) 


12 Grille / Filter - 

13 Panel P-N23WA 

14 Opening required in the ceiling - 

15 Fresh air intake orifice - 

82 

TCGB0052-rev.1-07/2009 

View from A 

A Installation space 

Models a b c 

RCI-1.5 Ø12.7 Ø6.35 248 

RCI-2.0 Ø15.88 Ø6.35 248 

RCI-2.5 Ø15.88 Ø9.53 248 

RCI-3.0 Ø15.88 Ø9.53 298 

RCI-4.0 Ø15.88 Ø9.53 298 

RCI-5.0 Ø15.88 Ø9.53 298 

RCI-6.0 Ø15.88 Ø9.53 298 

Units: mm

A 


¡ 

RCIM-(1.5/2.0)FSN2/P-N23WAM 

83 

TCGB0052-rev.1-07/2009 

Installation space 









8 Suspension bolt 4-M10 or W3/8 

9 Air duct supply connection - 

10 Grille / Filter 100x100 (Knockout hole) 

11 Panel P-N23WAM 


13 Fresh air intake orifice - 

View from A 

Models a b 

RCIM-1.5 Ø12.7 Ø6.35 

RCIM-2.0 Ø15.88 Ø6.35 

Units: mm 

3


3.1.2. 2-way cassette type models 

¡ 

RCD-(1.5~3.0)FSN2/P-N23DWA 

84 

TCGB0052-rev.1-07/2009 



1 Air intake 







8 Support for suspending the machine 

9 Suspension bolt 


11 Grille / Filter 

12 Panel P-N23DWA 

13 Opening required in the ceiling 

A 

View from A 

Models a b 

RCD-1.5 Ø12.7 Ø6.35 

RCD-2.0 Ø15.88 Ø6.35 

RCD-2.5 Ø15.88 Ø9.53 

RCD-3.0 Ø15.88 Ø9.53 

Units: mm


¡ 

RCD-(4.0/5.0)FSN2E/P-N23DWA 

85 

TCGB0052-rev.1-07/2009 





3 Refrigerant gas piping Flare: Ø15.88 

4 Refrigerant liquid piping Flare: Ø9.53 





9 Suspension bolt - 



12 Panel P-N23DWA 


 

A 

View from A 

Units: mm 

3


3.1.3. Ceiling-type models 

¡ 

RPC-2.0FSN2E 

86 

TCGB0052-rev.1-07/2009 




2 Air outlet - 




6 Drain hole Ø32.5 (knockout hole) 

7 Hole for refrigerant piping - 

8 Wiring hole - 



Piping connection arrangement 

Units: mm


¡ 

RPC-(2.5/3.0)FSN2E 

87 

TCGB0052-rev.1-07/2009 














Units: mm 

3


¡ 

RPC-4.0FSN2E 

88 

TCGB0052-rev.1-07/2009 














Units: mm


¡ 

RPC-(5.0/6.0)FSN2E 

89 

TCGB0052-rev.1-07/2009 














Units: mm 

3


3.1.4. Duct-type models 

¡ 

RPI-1.5FSN2E 

90 

TCGB0052-rev.1-07/2009 








6 Wiring hole 2-Ø20 (outer) 


8 Filter - 

9 Electrical switch box - 

Units: mm


¡ 

RPI-(2.0/3.0)FSN2E 

91 

TCGB0052-rev.1-07/2009 










8 Filter - 


Units: mm 

3


¡ 

RPI-(4.0~6.0)FSN2E 

92 

TCGB0052-rev.1-07/2009 










8 Filter - 


Units: mm


¡ 

RPI-(8.0/10.0)FSN2E 

Models a b 

RPI-8.0 Ø19.05 Ø9.53 

RPI-10.0 Ø22.2 Ø9.53 

93 

TCGB0052-rev.1-07/2009 










8 Filter - 


Units: mm 

3


¡ 

RPIM-1.5FSN2E 

94 

TCGB0052-rev.1-07/2009 








6 Refrigerant piping holes - 

7 Holes for drain piping - 

8 Electrical wiring holes - 



11 Filter - 

12 Fan motor - 

13 Fan casing - 

14 Heat exchanger - 

15 Expansion valve - 

Units: mm


3.1.5. Wall-type models 

¡ 

RPK-1.5FSN2M 

95 



1 Air intake 

2 Air outlet 

3 Refrigerant gas piping Ø 12.7 flare nut 

4 Refrigerant liquid piping Ø 6.35 flare nut 

5 Condensate drain piping Ø16 (outer) 

6 Wiring and/or refrigerant piping hole Knockout hole (both sides) 

7 Wiring and/or refrigerant piping hole Ø65 (outer) 



TCGB0052-rev.1-07/2009 

View from A 

Units: mm 

3


¡ 

RPK-2.0FSN2M 

96 



1 Air intake 

2 Air outlet 

3 Refrigerant gas piping Øb flare nut 

4 Refrigerant liquid piping Ø 6.35 flare nut 






TCGB0052-rev.1-07/2009 

 

View from A 

b a 

Ø15.88 440 

Ø12.70 410 

Units: mm


¡ 

RPK-(2.5~4.0)FSN2M 





3 Refrigerant gas piping Ø15.88 flare nut 

4 Refrigerant liquid piping Ø9.53 flare nut 






97 

TCGB0052-rev.1-07/2009 

View from A 

Units: mm 

3


3.1.6. Floor-type models 

¡ 

RPF-(1.5~2.5)FSN2E 






5 Drain piping Ø18.5 (outer) 

6 Holes for fixing the unit to the floor 

• 4-Ø7 (outer) 

For wood screw (4-M5) 

• 2-Ø12.5 (outer) 

For bolts (2-M8)- 

7 Holes for fixing the unit to the wall 4-Ø14 (outer) 

8 Filter - 

98 

A 

B 

View from Z 

C 

TCGB0052-rev.1-07/2009 

Models A B C 

RPF-1.5 1170 879 857 

RPF-2.0 1420 1129 1107 

RPF-2.5 1420 1129 1107 

Models a b 

RPF-1.5 Ø12.7 Ø6.35 

RPF-2.0 Ø15.88 Ø6.35 

RPF-2.5 Ø15.88 Ø9.53 


Z 

Units: mm


3.1.7. Floor-concealed models 

¡ 

RPFI-(1.5~2.5)FSN2E 






5 Drain piping Ø18.5 (outer) 

99 

View from Z 

C 

A 

D 

B 

6 Holes for fixing the unit to the floor 

• 4-Ø7 (outer) 

For wood screws (4-M5) 

• 2-Ø12.5 (outer) 

For bolts (2-M8)- 

7 Holes for fixing the unit to the wall 4-Ø14 (outer) 

8 Filter - 

TCGB0052-rev.1-07/2009 

Models A B C D 

RPFI-1.5 973 879 857 831 

RPFI-2.0 1223 1129 1107 1081 

RPFI-2.5 1223 1129 1107 1081 

Models a b 

RPFI-1.5 Ø12.70 Ø6.35 

RPFI-2.0 Ø15.88 Ø6.35 

RPFI-2.5 Ø15.88 Ø9.53 

Z 


Units: mm 

3


3.2. Outdoor units 

¡ 

RAS-(2/2.5)HVRN1/RAS-3HVRNS 


1 Air intake 

2 Air outlet 

3 Holes for power supply wiring 

4 Holes for control line wiring 

5 Gas piping connection Øa flare nut 

6 Liquid piping connection Øb flare nut 

7 Service panel 

8 Refrigerant piping hole 

9 Drain hole 

10 Drain hole 

11 Earth terminal wiring (M5) 

12 Holes for fixing machine to wall 

100 

TCGB0052-rev.1-07/2009 

Models a b 

RAS-2HVRN1 Ø12.70 Ø6.35 

RAS-2.5HVRN1 Ø12.70 Ø6.35 

RAS-3HVRNS Ø15.88 Ø9.53 

Units: mm


¡ 

RAS-(4~6)HVRNSE 




3 Service cover - 


5 Holes for refrigerant piping and electrical wiring piping - 

6 Drain holes 4-Ø24 


8 Holes for fixing machine to wall 4-(M5) 

9 Refrigerant liquid piping Flare nut: Ø9.53 (3/8”) 

10 Refrigerant gas piping Flare nut: Ø15.88 (5/8”) 

101 

TCGB0052-rev.1-07/2009 

Units in: mm 

3


¡ 





3 Service cover - 


5 Holes for refrigerant piping and electrical wiring piping - 



8 Holes for fixing machine to wall 4-(M5) 

9 Refrigerant liquid piping Flare nut: Ø9.53 (3/8”) 

10 Refrigerant gas piping Flare nut: Ø25.4 (1”) 

102 

TCGB0052-rev.1-07/2009 

Units in: mm


3.3. Complementary units 

3.3.1. Total heat exchanger 

¡ 

NOTES: 

OA: Outdoor air 



SA: Supply air 

Model 

KPI-(502/802)E1E 

103 

SA 

RA 

Dimensions Support for ceiling Duct connection 

A B C D E F G H J 

KPI-502E1E 1130 925 330 864 864 1180 200 90 527 

KPI-802E1E 1210 1015 385 1258 954 1260 250 91 567 

TCGB0052-rev.1-07/2009 

EA 

OA 

Units: mm 

3


¡ 

NOTES: 





Model 

KPI-(1002~2002)E1E 

104 

SA 

RA 



KPI-1002E1E 1650 1300 385 1404 1404 1344 250 91 711 

KPI-1502E1E 1800 1130 525 1557 1557 1178 300 91 541 

KPI-2002E1E 1800 1430 525 1557 1557 1478 350 91 841 

TCGB0052-rev.1-07/2009 

EA 

OA 

Units: mm


¡ 

KPI-3002H1E 

NOTES: 





Model 

105 

SA 

RA 



KPI-3002H1E 2124 1245 650 2040 1380 1300 450 82 622 

TCGB0052-rev.1-07/2009 

EA 

OA 

Units: mm 

3


3.3.2. Econofresh kit 

¡ 

EF-5NE 





3 Holes for fixing the unit 4-15x12 


106 

TCGB0052-rev.1-07/2009 

Room return Outdoor 

Units: mm

Capacities and 

selection data 

107 

TCGB0052-rev.1-07/2009 

4.Capacities and selection data 

This chapter is a guide for selecting the most suitable units according to your requirements and indicates the performance 

data of each unit in the new UTOPIA DC INVERTER ES series. 

Contents 

4. Capacities and selection data ...............................................................................107 

4.1. UTOPIA DC INVERTER ES series system selection procedure ........................................................ 108 

4.1.1. Selection parameters .................................................................................................................................... 108 

4.1.2. Selection procedure ...................................................................................................................................... 108 

4.2. KPI system selection procedure ..........................................................................................................115 

4.2.1. Selection guide for KPI ...................................................................................................................................115 

4.2.2. Calculation of the heat exchanger efficiency ..................................................................................................118 

4.3. Selection procedure for the Econofresh system ..................................................................................119 

4.4. Combinability ...................................................................................................................................... 121 

4.5. Compatibilities .................................................................................................................................... 122 

4.6. Standard cooling and heating capacities ............................................................................................ 125 

4.7. Maximum cooling capacities of the outdoor units ............................................................................... 128 

4.8. Maximum heating capacities of the outdoor units .............................................................................. 129 

4.9. Correction factors ............................................................................................................................... 130 

4.9.1. Piping length correction factor ....................................................................................................................... 130 

4.9.2. Defrost correction factor ................................................................................................................................ 134 

4.10. Sensible heat factor (SHF) .................................................................................................................. 135 

4.11. Fan performance ................................................................................................................................ 136 

4.11.1. RPI(M)-(1.5~10.0)FSN2E .......................................................................................................................... 136 

4.11.2. KPI – Fan performance ............................................................................................................................... 138 

4.12. Temperature distribution diagrams ..................................................................................................... 140 




4.12.4. RPK – Wall type .......................................................................................................................................... 146 

4.13. Sound data ......................................................................................................................................... 147 




4.13.4. RPI – In-the-ceiling type .............................................................................................................................. 153 

4.13.5. RPK – Wall type .......................................................................................................................................... 156 

4.13.6. RPF – Floor type ......................................................................................................................................... 157 

4.13.7. RPFI – Floor concealed type ....................................................................................................................... 158 

4.13.8. KPI .............................................................................................................................................................. 159 

4.13.8. RAS – UTOPIA DC INVERTER ES outdoor units ....................................................................................... 161 

4



4.1. UTOPIA DC INVERTER ES series system selection procedure 

The following procedure is an example of how to select the system units and indicates how to use all the 

parameters indicated in this chapter. 

Considering the layout of the building, the possible position of the indoor units and the air flow distribution, select the 

unit features that provide the greatest efficiency and comfort. Decide a position for the outdoor unit that facilitates 

service and maintenance tasks, as well as easy refrigerant pipe installation. 

4.1.1. Selection parameters 

To select the outdoor units, it will be necessary to consult and/or use a serie of parameters shown in tables and 

graphics presented in the different chapters of this catalogue. A summarized list is shown below: 

108 

− 

− 

− 

− 

For general information: Chapter 2. 

For operating space options: Chapter 3. 

For unit combinations: Section 4.2. 

For capacities: Sections 4.4,4.5,4.6. 

TCGB0052-rev.1-07/2009 

− 

− 

− 

− 

For sensible heat factor: Section 4.8. 

For correction factors: Section 4.7. 

For noise characteristics: Section 4.9 

Piping length and lift range: Chapter 7. 

In case of an installation with ducts (outdoor unit with RPI indoor unit) the fan performance for duct calculations 

should be considered. The RPI units are designed with different static pressure ranges in order to fulfil all installation 

necessities. 

4.1.2. Selection procedure 

The system selection procedure is as follows: 

Firstly, the outdoor unit is pre-selected according to the design conditions. Secondly, the combination with indoor 

units and their respective models is chosen. Finally, the theoretical capacity values taken from the different tables 

are corrected to take account of the various correction factors that exist. 

This procedure is divided in two parts: cooling and heating.



Step 1: 

Step 2: 

109 

¡ Cooling mode 

Initial pre-selection 

This example is based on an ambient with the following characteristics: 

Design conditions: 

TCGB0052-rev.1-07/2009 

Outdoor air inlet Dry bulb: 35 ºC 


Dry bulb: 25 ºC 

Wet bulb: 17 ºC 

Required cooling load 13.5 kW 

Required sensible heat load 10 kW 

It has been assumed that this ambient will require a cooling load of 13.5 kW, of which the 

client has set a minimum sensible heat load condition of 10 kW. 

The outdoor ambient temperature (air inlet at the outdoor unit) is 35 ºC DB and the air 

inlet temperature for the indoor unit is 25/17 ºC (DB/WB). 

Section 4.7. (Cooling capacity of the outdoor units) should be seen once the 

characteristics of the space to be conditioned have been studied in order to find the unit 

that will provide the appropriate cooling capacity for these ambient conditions. 

Outdoor unit 

Cooling capacity of 

the outdoor unit (kW) 

RAS-5HVRNSE 13.00 


As can be seen in the table, the outdoor unit that covers the installation’s cooling 

requirements is the RAS-6HVRNSE. Therefore, this will be the pre-selected unit 

NOTE: 

If the air inlet temperature for the indoor unit or outdoor unit is not contained in the capacity 

table in section standard cooling and heating capacities, an interpolation should be carried out 

using the values above and below those of the air inlet temperature. 

Selecting the combination of the outdoor unit and the indoor unit 

For this theoretical ambient, it is assumed that the most appropriate combination would 

be an outdoor unit with 3 indoor units, taking into account the design of the room and the 

possible position of the indoor units and their subsequent air distribution. The installation 

conditions would be the following: 

Installation characteristics: 

Total piping length 30 m 

Height difference between indoor and 

outdoor units. 

10 m 

Referring to section Combinability, it can be checked that the only possible triple 

combination for the RAS-6HVRNSE is with three indoor units of 2.0 HP. 

For this example it is assumed three differents indoor units (RCI-2.0FSN2E, 

RPI- 2.0FSN2E and RPC-2.0FSN2E) in order to show how the choice of indoor unit can 

affect the different factors presented in this chapter. 

It is also considered that the outdoor unit is located in a higher position that the indoor 

units. Therefore, when necessary refer to the section “Piping length correction factor”, it 

will be used the correction factor value at positive height difference between indoor and 

outdoor units (+H). 

4



Step 3: 

110 

Cooling capacity correction 

The actual cooling capacity of the pre-selected unit must be calculated applying the 

necessary correction factors: 

TCGB0052-rev.1-07/2009 

Q C = Q MC x f LC 

Q : Actual cooling capacity of the outdoor unit (kW) 

C 

Q : Maximum cooling capacity of the outdoor unit (kW) 

MC 

f : Cooling piping length correction factor 

LC 

The maximum cooling capacity (Q MC ) of the RAS-6HVRNSE unit is 15.2 kW. 

Calculation of f : LC 

Both the length of the refrigerant piping used and the height difference between the 

outdoor unit and the indoor units directly affect the performance of the unit. This 

concept is quantified in the piping length correction factor. 

To determine this value it is necessary refer to section “Piping length correction factor”, 

where it can be seen that for the characteristics of our example (piping length of 30 

metres and a height difference between the outdoor unit and the indoor units of 10 

metres) the piping length correction factor for cooling mode is 0.92. 

Calculation of Q : C 

Once the correction factors to be applied have been determined, the formula for actual 

cooling capacity of the unit RAS-6HVRNSE can be applied: 

Q = 15.2 kW x 0.92 = 13.98 kW 

C 

As can be seen, the actual cooling capacity of the RAS-6HVRNSE (13.98 kW) unit is 

greater than the cooling load required by the ambient to be conditioned (13.5 kW), but 

before deciding that the unit is valid, it must be verified that the unit complies with the 

requirement for the minimum sensible heat capacity set by the client (10 kW). 

NOTE: 

If the actual cooling capacity calculated is less than that provided by the pre-selected unit, the 

calculation must be done again with the unit immediately higher.



Step 4: 

111 

Sensible heat capacity (SHC) 

The system requirements specify a minimum sensible heat capacity of 10 kW. Once the 

real cooling capacity of the RAS-6HVRNSE unit has been determined, its sensible heat 

capacity in combination with the three indoor units (RCI-2.0FSN2E, RPI-2.0FSN2E and 

RPC-2.0FSN2E), can be calculated. 

Firstly, the real cooling capacity of each indoor unit must be calculated. This is done 

using the following formula: 

TCGB0052-rev.1-07/2009 

Q CI = Q C x 

Q CI : Actual cooling capacity of the indoor unit (kW) 

Q C : Actual cooling capacity of the outdoor unit (kW) 

Q MCI 

Q MCC 

Q MCI : Maximum cooling capacity of the indoor unit (kW). See section “Combinability” 

Q MCC : Maximum cooling capacity of the combination (kW). See section “Combinability” 

Applying this we obtain: 

Q RPI-2.0 = 13.98 kW x 

5.33 kW = 4.66 kW = QRCI-2.0 = Q RPC-2.0 

16.0 kW 

Once the calculation of the indoor units cooling capacity has been completed, the 

sensible heat capacity can be calculated using the following formula: 

SHC = Q CI x SHF 

SHC: Sensible heat capacity (kW) 

Q : Actual cooling capacity of the indoor unit (kW) 

CI 

SHF: Sensible heat factor 

Calculation of SHF: 

To determine the sensible heat factor (ratio of sensible heat relative to the total) the 

table in section “Sensible heat factor (SHF)” has to be seen, in which the different 

SHF values are shown for the different indoor units for each of the three possible fan 

speeds (High, Medium, Low). The value used is that relating to the high fan speed. 

Doing this we obtain: 

Calculation of SHC: 

SHF RPI-2.0 = 0.76 

SHF RCI-2.0 = 0.78 

SHF RPC-2.0 = 0.72 

Initinally, once the sensible heat factors have been obtained, the sensible heat 

capacity of each indoor unit can be calculated by applying the previous formula. 

SHC = 4.66 kW x 0.76 = 3.54 kW 

RPI-2.0 

SHC = 4.66 kW x 0.78 = 3.63 kW 

RCI-2.0 

SHC = 4.66 kW x 0.72 = 3.36 kW 

RPC-2.0 

The cooling capacity data for the RAS-6HVRNSE unit taken from the table in section 

“Maximum cooling capacities of the outdoor units” is calculated on the basis of a 

relative humidity of 50% which means that an indoor air inlet temperature of 17ºC WB 

corresponds to a temperature of 24 ºC DB. 

However, the difference between the indoor air inlet dry bulb temperature required by 

the system (25 ºC) and the indoor air inlet dry bulb temperature recorded in the cooling 

capacity data (24 ºC) requires an adjustment of the sensible heat capacity for each 

indoor unit. 

4



Step 5: 

112 

Sensible heat capacity correction (SHC C ) 

The following formula should be used to carry out the sensible heat correction for each 

indoor unit: 

TCGB0052-rev.1-07/2009 

SHC C = SHC + (CR x (DB R - DB)) 

SHC : Corrected sensible heat capacity (kW) 

C 

SHC: Sensible heat capacity (kW) 

CR: Correction ratio due to humidity 

DB : Real Dry Bulb evaporator temperature (ºC) 

R 

DB: Dry Bulb evaporator temperature (ºC) for each wet bulb temperature from the table (HR = 50 %) 

Calculation of CR: 

The correction ratio due to humidity is shown in the table contained in section 

“Maximum cooling capacities of the outdoor units”. 

This coefficient corrects the sensible heat capacity of a unit according to the relative 

humidity of the air entering the indoor unit. The greater the relative humidity the lower 

will be the sensible heat capacity and vice versa. 

The correction ratio CR for the RAS-6HVRNSE unit is 0.59. 

Calculation of SHC 

C : 

Once the CR has been identified for the RAS-6HVRNSE unit the corrected sensible 

heat capacity SHCC of the indoor unit can be calculated: 

SHC C_RPI-2.0 = 3.54 kW + (0.59 x (25 - 24)) = 4.13 kW 

SHC C_RCI-2.0 = 3.63 kW + (0.59 x (25 - 24)) = 4.22 kW 

SHC C_RPC-2.0 = 3.36 kW + (0.59 x (25 - 24)) = 3.95 kW 

The sensible heat capacity for the combination will be: 

SHC = SHC + SHC + SHC C C_RPI-2.0 C_RCI-2.0 C_RPC-2.0 

SHC = 4.13 kW + 4.22 kW + 3.95 kW = 12.30 kW 

C 

As can be seen, the corrected sensible heat capacity of the system (12.30 kW) is greater 

than the sensible heat capacity required by the ambient to be conditioned (10 kW). 

Therefore, it can be said that the RAS-6HVRNSE unit meets the minimum cooling 

requirements set for the system. 

In order to validate the pre-selection of the RAS-6HVRNSE unit, its compliance with the 

minimum cooling requirements and the minimum heating requirements must be checked.



Step 1: 

113 

¡ Heating mode 

Initial pre-selection 

The heating requirements for the previous example are shown below. 

Ambient conditions 

TCGB0052-rev.1-07/2009 


Dry bulb: 3 ºC 

Wet bulb: 0 ºC 

Indoor air inlet Dry bulb: 20 ºC 

Required heating load 13 kW 

The cooling ambient studied has the following heating characteristics: 

It has been assumed that the required heating load for this ambient is 14 kW. 

The outdoor ambient temperature (air inlet at the outdoor unit) is 3/0 ºC (DB/WB) and 

temperature of the indoor air inlet is 20 ºC DB. 

Section “Maximum heating capacities of the outdoor units” should be seen once the 

characteristics of the space to be conditioned have been studied in order to verify that 

the unit pre-selected for cooling provides an appropriate heating capacity for these 

conditions: 

Outdoor unit 

Heating capacity of 

the outdoor unit (kW) 


As can be seen in the table, the RAS-6HVRNSE unit provides a theoretical heating 

capacity greater than the heating demand required by the environment. Therefore, the 

calculation process can continue. 

NOTE: 

If the unit pre-selected for cooling does not provide the heating load required by the 

environment the pre-selection should be changed and the next unit should be chosen. 

4



Step 2: 

114 

Heating capacity correction 

The actual heating capacity of the pre-selected unit must be calculated applying the 

necessary correction factors: 

TCGB0052-rev.1-07/2009 

Q H = Q MH x f LH x f d 

Q : Actual heating capacity of the outdoor unit (kW) 

H 

Q : Maximum heating capacity of the outdoor unit (kW) 

MH 

f : Heating piping length correction factor 

LH 

f : Defrosting correction factor 

d 

The maximum heating capacity (Q MH ) of the RAS-6HVRNSE unit is 15.50 kW. 

Calculation of f : LH 

Consulting section “Piping length correction factor”, it can be seen that for the 

characteristics of our example (piping length of 30 metres and a height difference 

between the outdoor unit and the indoor units of 10 metres) the piping length 

correction factor for heating mode is 0.985. 

Calculation of f : d 

In situations where the ambient temperature is lower than 7 ºC DB, frost may build up 

on the heat exchanger. In the case, the heating capacity for the unit may be reduced 

because of the time spent by the unit in removing the build-up. 

The defrosting correction factor takes this time into account and applies the heating 

capacity correction. 

To calculate the correction factor, please see section “Defrost correction factor” which 

shows a table with different values of f d depending on the ambient temperature (ºC DB). If 

the correction factor at an ambient temperature of 3 ºC DB does not appear on the table, 

an interpolation will be needed. 

Finally, the resulting defrosting correction factor is 0.87. 

Calculation of Q : H 

Once the correction factors to be applied have been determined, the formula for actual 

heating capacity of the unit RAS-6HVRNSE can be applied: 

Q = 15.50 kW x 0.985 x 0.87 = 13.28 kW 

C 

As can be seen, the actual heating capacity of the unit RAS-6HVRNSE (13.28 kW) 

is greater than the heating load required by the ambient to be conditioned (13 kW). 

Therefore, the pre-selection will be considered valid both for heating and cooling. 

NOTE: 

If the actual heating capacity calculated is less than that provided by the pre-selected unit, the 

calculation must be done again with the unit immediately higher.



Method 1: 

 

Example: 

115 

4.2. KPI system selection procedure 

4.2.1. Selection guide for KPI 

There are two methods for calculating the suitable unit: 

− Method 1, Areas 

− Method 2, Inhabitants 

It is important to check the local legislation regarding certification of the final results. 

This is a quick method for calculating the ventilation. Remember that this result is only 

approximate. 

The air will need to be renewed in order to reduce the CO levels in the room and to 

2 

eliminate unpleasant odors, smoke, and pollution. In short, the room must be ventilated 

to provide a greater comfort level for the occupants. 

The first point to analyze is the type of activity for which the room is used. An office is not 

the same as a bar. 

Then, the volume of the room must be calculated. 

This method is based on areas and the frequency of air renewal. 

See table below to determine the 

number of air ventilations per hour 

required depending on the type of 

room. This table is not standard for all 

countries, although the layout will be 

the same. 

Consult the specific standards for 

each country. 

TCGB0052-rev.1-07/2009 

Volume V (m³) = A x B x C 

A x B = Area of room (m²) 

C = Ceiling height (m) 

Type of room Air ventilation/hour (N) 

Cathedral 0 

Modern church (low ceiling) 1-2 

Schools 2-3 

Offices 3-4 

Bars 4-6 

Hospitals 5-6 

Restaurants 5-6 

Laboratories 6-8 

Discos 10-12 

Kitchens 10-15 

Laundries 20-30 

The flow of air for renewal is calculated using the following formula: 

Air flow rate C (m³/h) = V x N 

V: Volume of the room (m³) 

N: Number of air ventilations 

A bank with an area of 60 m² and an average height of 3 m. requires 4 ventilations per 

hour. The airflow is therefore: 

C= 180 x 4 = 720 m³/h 

The correct KPI model for this installation is KPI-802E1E. It provides an air flow of 

between 680 and 800 m³/h. 

4



Method 2: 

Example: 

116 

¡ 

This system is based on inhabitants. 

20: Constant 

AxB: Area of the room (m²) 

D: Area occupied by each person (m²) 

This area is limited to 10. 

TCGB0052-rev.1-07/2009 

Air flow (m³/h) C = 

Bank with an area of 60 m² and 20 people. 

C = 

20 x 60 

60/20 

20 x A x B 

D 

= 400 m³/h 

The correct KPI model for this installation is: KPI-502E1E It provides an air flow of 

between 350 and 500 m³/h. 

Applicable area range based on method 1 

Considering an average height of 3 m, the suitable area range for the KPI will be 

calculated with the following air ventilations. 

Air 

ventilations 

(N) 

2 

5 

7 

10 

15 

Unit 

Nominal 

Air flow (m 3 /h) Area of the room (m 2 ) 

Range 

Range 

Nominal 

Min. Max. Min. Max. 

KPI-502E1E 500 350 640 83 58 107 

KPI-802E1E 800 500 990 133 83 165 

KPI-1002E1E 1000 640 1460 167 107 243 

KPI-1502E1E 1500 810 2040 250 135 340 

KPI-2002E1E 2000 1400 2440 333 233 407 

KPI-3002H1E 3000 2000 3400 500 333 567 

KPI-502E1E 500 350 640 33 23 43 

KPI-802E1E 800 500 990 53 33 66 

KPI-1002E1E 1000 640 1460 67 43 97 

KPI-1502E1E 1500 810 2040 100 54 136 

KPI-2002E1E 2000 1400 2440 133 93 163 

KPI-3002H1E 3000 2000 3400 200 133 227 

KPI-502E1E 500 350 640 24 17 30 

KPI-802E1E 800 500 990 38 24 47 

KPI-1002E1E 1000 640 1460 48 30 70 

KPI-1502E1E 1500 810 2040 71 39 97 

KPI-2002E1E 2000 1400 2440 95 67 116 

KPI-3002H1E 3000 2000 3400 143 95 162 

KPI-502E1E 500 350 640 17 12 21 

KPI-802E1E 800 500 990 27 17 33 

KPI-1002E1E 1000 640 1460 33 21 49 

KPI-1502E1E 1500 810 2040 50 27 68 

KPI-2002E1E 2000 1400 2440 67 47 81 

KPI-3002H1E 3000 2000 3400 100 67 113 

KPI-502E1E 500 350 640 11 8 14 

KPI-802E1E 800 500 990 18 11 22 

KPI-1002E1E 1000 640 1460 22 14 32 

KPI-1502E1E 1500 810 2040 33 18 45 

KPI-2002E1E 2000 1400 2440 44 31 54 

KPI-3002H1E 3000 2000 3400 67 44 76



Air 

ventilations 

(N) 

20 

30 

40 

50 

117 

Unit 

Nominal 

TCGB0052-rev.1-07/2009 

Air flow (m 3 /h) Area of the room (m 2 ) 

Range 

Range 

Nominal 

Min. Max. Min. Max. 

KPI-502E1E 500 350 640 8 6 11 

KPI-802E1E 800 500 990 13 8 17 

KPI-1002E1E 1000 640 1460 17 11 24 

KPI-1502E1E 1500 810 2040 25 14 34 

KPI-2002E1E 2000 1400 2440 33 23 41 

KPI-3002H1E 3000 2000 3400 50 33 57 

KPI-502E1E 500 350 640 6 4 7 

KPI-802E1E 800 500 990 9 6 11 

KPI-1002E1E 1000 640 1460 11 7 16 

KPI-1502E1E 1500 810 2040 17 9 23 

KPI-2002E1E 2000 1400 2440 22 16 27 

KPI-3002H1E 3000 2000 3400 33 22 38 

KPI-502E1E 500 350 640 4 3 5 

KPI-802E1E 800 500 990 7 4 8 

KPI-1002E1E 1000 640 1460 8 5 12 

KPI-1502E1E 1500 810 2040 13 7 17 

KPI-2002E1E 2000 1400 2440 17 12 20 

KPI-3002H1E 3000 2000 3400 25 17 28 

KPI-502E1E 500 350 640 3 2 4 

KPI-802E1E 800 500 990 5 3 7 

KPI-1002E1E 1000 640 1460 7 4 10 

KPI-1502E1E 1500 810 2040 10 5 14 

KPI-2002E1E 2000 1400 2440 13 9 16 

KPI-3002H1E 3000 2000 3400 20 13 23 

4

NOTE: 



OA: Outdoor fresh air 




NOTE: 

The temperature t is given in 

ºC and DB. 

The humidity x in kgw/kga 

The enthalpy i in kJ/kg 

ηt can be obtained from the 

graph in section of KPI-Fan 

performance 

By determining the desired 

air flow, we obtain the 

temperature exchange 

efficiency. 

118 

4.2.2. Calculation of the heat exchanger efficiency 

The following procedure shows how 

to obtain the total heat exchanger 

efficiency of the KPI, and the 

method for calculating the supply air 

temperature. 

The following chart can be used: 

Nominal exchange temperature conditions: 

TCGB0052-rev.1-07/2009 

Temp. (ºC) 

Dry bulb 

Indoor (RA) Outdoor (OA) 

Temp. (ºC) 

Wet bulb 

Temp. (ºC) 

Dry bulb 

Outdoor 

ambient 

temperature 

Temp. (ºC) 

Wet bulb 

Cooling kW 27±1 20±2 35±1 29±2 

Heating kW 20±1 14±2 5±1 2±2 

Total heat 

exchanger 

Indoor ambient 

temperature 

The air supply flow volume of supply and exhaust is the same. 

The equations which give the necessary parameters for calculating the operating 

conditions of the KPI are given below. First, an energy balance has to be made. 

Temperature exchange efficiency 

(sensible exchange efficiency) 

Humidity exchange efficiency (latent 

exchange efficiency) 

Total heat exchange efficiency 

(enthalpy exchanger efficiency) 

By using the temperature exchange 

efficiency, the temperature of the 

supply air can be determined 

according to the following formula: 

 

ηt = 

ηx = 

ηi = 

t(OA)–t(SA) x 100 (%) 

t(OA)–t(RA) 

x(OA)–x(SA) x 100 (%) 

x(OA)–x(RA) 

i(OA)–i(SA) x 100 (%) 

i(OA)–i(RA) 

t(SA) = t(OA)–?t(t(OA)–t(RA)) 

η can be obtained from the chart in Section KPI-Fan performance 

t 

By determining the desired air flow, we obtain the temperature exchange efficiency.

NOTE: 



Td (Tt): Indoor fresh air 

temperature 

CO : Gas sensor 

2 

TR: Set temperature with 

the remote control 

OA sluiceway: Outdoor 

air inlet sluiceway 

NOTE: 

P : Pressure loss of fresh 

O 

outdoor air duct 

P : Pressure loss in return 

i 

air duct 

P : Pressure loss in air 

D 

discharge duct 

P : Pressure loss for 

ECO 

Econofresh kit 

P = P + P + P 

A o D ECO 

P = P + P + P 

B R D ECO 

A: Supply air flow when 

fresh outdoor air damper 

is fully opened (return air 

damper is fully closed) 

B: Supply air flow when 

fresh outdoor air damper 

is fully closed (return air 

damper is fully opened) 

P :3 mmAq; 

D 

P : 6 mmAq; 

R 

P : 13 mmAq; 

0 

P : 3 mmAq 

econo 

119 

4.3. Selection procedure for the Econofresh system 

Static pressure Pa 

The Econofresh kit is an accessory that only works with the RPI 5HP. It is easy to install 

and allows the installers and designers to dispense with any additional installation for 

ventilation. 

Return air duct Econofresh kit 

RPI unit 

TCGB0052-rev.1-07/2009 

Fresh air duct 

The air in the rooms must be renewed in order to reduce CO 2 levels, eliminate unpleasant 

odors, smoke, and pollution, although this fresh air increases energy consumption. The 

Econofresh kit is able to reduce this consumption. Using this system it is possible to 

intake fresh air using the indoor unit when the thermostat is off. Depending on the outlet 

and inlet temperature, the Econofresh kit works as an intelligent system, enabling the 

airflow to be controlled at all times by modifying the position of the damper. 

The Econofresh kit makes it possible to work with the CO or enthalpic sensors in order 

2 

to control the quality of the air inside the room. 

The following procedure explains the method for calculating the Econofresh kit and its 

advantages in a natural cooling system. 

First, the pressure loss in the ducts of this installation must be factored in. This loss 

varies from one installation to another. (For more information see the “Pressure Loss 

data” chart). 

These pressure loss charts must be included in the RPI chart. High static pressure 

produces a performance curve with an air flow rate for 0% (B) of fresh air and 100% (A) 

of fresh air (natural cooling system). (For more information, see the “Air flow calculation” 

chart). 

Pressure loss data 

Pi 

Air flow m 3 /min 

Static pressure Pa 

Calculation of the air flow 

(RPI 5 HP + Econofresh kit) 

Fan performance curves 

(RPI-5HP) P A =P O +P D +P ECO 

Econofresh working 

range 

P B =P i +P D +P ECO 

Air flow in 

m 3 /min 

The result of this calculation is an air flow rate of 35 m³/min for (B) and 25 m³/min for (A). 

The energy saving calculation for 25 m³/min (Free cooling mode) is shown below. 

4



¡ Free cooling mode (Economizer) 

Determining the maximum heat capacity (free cooling). 

Calculate the capacity by entering the maximum outdoor air flow (V Omax ), the room temperature (T i ) and the outdoor unit 

temperature (T o ) in the following formula. 

120 

TCGB0052-rev.1-07/2009 

Q SHmax = V Omax x (1-ß) x (T i - T o ) x 0.02 

β = 0.2 by-pass factor for RPI 5.0 HP 

V omax = 25 m³/min 

T i = 25 °C 

T o = 15 °C 

Q SHmax = 4.00 kW 

This is the maximum capacity allowed by the Econofresh kit in these conditions to reduce the power supply each hour. 

¡ All-Fresh mode 

The new EconoFresh Kit can also work with the “All-Fresh mode”. In order to configure this mode, you must use the 

additional E 1 function, by setting of the remote controller 

All-Fresh mode allows Econofresh to supply only outdoor fresh air. It is able to do so because the damper is fully open 

during this operation mode, while the indoor unit is working. 

If All-Fresh mode is used constantly, the air flow rate will decrease. It is therefore necessary to calculate the cooling 

capacity by using the minimum air flow rate (point A). 

This operation mode is extremely useful for buildings with a high density of occupants such as public buildings.



4.4. Combinability 

The following table shows the possible combinations for DC INVERTER ES, as well as the maximum capacity of the 

individual unit and of the system according to the power combination (HP) of the indoor units at a rated temperature 

and with a 7.5 m piping length. 

¡ 

Combination 


RAS-2HVRN1 

Indoor unit combination 

(HP) 

121 

Total 

TCGB0052-rev.1-07/2009 

Nominal cooling capacity: 5.0 kW 

Nominal heating capacity: 5.6 kW 

Maximum capacity (kW) 

Cooling Total Heating Total 

Individual 2.0 - - 2.0 5.6 - - 5.6 7.1 - - 7.1 

Combination 

RAS-2.5HVRN1 


(HP) 

Total 





Individual 2.5 - - 2.5 6.3 - - 6.3 7.1 - - 7.1 

¡ 

Combination 


RAS-3HVRNS 


(HP) 

Total 





Individual 3.0 - - 3.0 8.0 - - 8.0 9.0 - - 9.0 

Twin 1.5 1.5 - 3.0 4.0 4.0 - 8.0 4.5 4.5 - 9.0 

Combination 

RAS-4HVRNSE 


(HP) 

Total 





Individual 4.0 - - 4.0 11.2 - - 11.2 12.5 - - 12.5 

Twin 2.0 2.0 - 4.0 5.6 5.6 - 11.2 6.25 6.25 - 12.5 

Combination 

RAS-5HVRNSE 


(HP) 

Total 





Individual 5.0 - - 5.0 14.0 - - 14.0 16.0 - - 16.0 

Twin 2.5 2.5 - 5.0 7.0 7.0 - 14.0 8.0 8.0 - 16.0 

Combination 

RAS-6HVRNSE 


(HP) 

Total 





Individual 6.0 - - 6.0 16.0 - - 16.0 18.0 - - 18.0 

Twin 3.0 3.0 - 6.0 8.0 8.0 - 16.0 9.0 9.0 - 18.0 

Triple 2.0 2.0 2.0 6.0 5.33 5.33 5.33 16.0 6.0 6.0 6.0 18.0 

4



¡ RAS-(8/10)HRNSE 

RAS-8HRNSE 

Combination Indoor unit combination (HP) Total 

122 

TCGB0052-rev.1-07/2009 





Individual 8.0 - - - 8.0 22.4 - - - 22.4 25.0 - - - 25.0 

Twin 4.0 4.0 - - 8.0 11.2 11.2 - - 22.4 12.5 12.5 - - 25.0 

Triple 3.0 3.0 3.0 - 9.0 7.4 7.4 7.4 - 22.2 8.3 8.3 8.3 - 24.9 

Quad 2.0 2.0 2.0 2.0 8.0 5.6 5.6 5.6 5.6 22.4 6.2 6.2 6.2 6.2 24.8 

RAS-10HRNSE 

Combination Indoor unit combination (HP) Total 





Individual 10.0 - - - 10.0 28.0 - - - 28.0 31.5 - - - 31.5 

Twin 5.0 5.0 - - 10.0 14.0 14.0 - - 28.0 15.7 15.7 - - 31.4 

Quad 2.5 2.5 2.5 2.5 10.0 7.0 7.0 7.0 7.0 28.0 7.8 7.8 7.8 7.8 31.2 

NOTE: 

- The RPF(I) unit cannot be connected with another unit in a twin or triple combination due to lift restriction between indoor units. 

- DC Inverter UTOPIA ES series is only for simultaneous operation at twin, triple and quad combinations. 

- The triple combination is not available for RAS-10HRNSE. 

4.5. Compatibilities 

Units with the H-LINK system, units with the H-LINK II system and their remote controls can be combined as follows: 

− The new RAS-H(V)RNM(E) outdoor units can be connected with the FSN1(E) and FSN2(E) indoor units 

− The new FSN2(E) indoor units can be connected to the RAS-H(V)RNE/H(V)NE and RAS-HVRN1/HVRNS(E) 


− The new system H-LINKII enables connection of remote controls, from type PC-P2HTE. 

H-LINK 

H-LINK II 

NOTE: 

OUTDOOR UNIT INDOOR UNIT REMOTE CONTROLS 

RAS-H(V)RNE/ 

RAS-HNVE 

RAS-HVRN1/HVRNS(E) 

Compatible 

Incompatible 

FSN(1)(E) 

FSN2(E) 

The RCI-FSN2E unit can be connected to the P-G23WA2 panel (by cutting the J4 jumper). 

(*) In both combinations, some of the functions of the indoor unit cannot be used. 

OLD (PC-2H2) 

OLD (PC-P1HE) 

CURRENT (PC-P2HTE) 

(*) 

(*) 

NEW (PC-ART)



NOTE: 

HL: H-LINK 

HLII: H-LINKII 

123 

¡ 

Examples of different H-LINK and H-LINKII systems 

1. System with indoor and outdoor units, and a central remote control of type H-LINKII 

Range of number of 

refrigerant cycles 


indoor units 


indoor units 


equipment units (*) 

NOTE: 

TCGB0052-rev.1-07/2009 

0-63 

0-63 

(*) Systems = Indoor units + Outdoor units * Centralized control 

2. System with indoor and outdoor units, and a remote control of type H-LINKII and a 

central H-LINK control 




indoor units 


indoor units 



NOTE: 

160 

200 

0-15 

0-15 


128 

145 

4

NOTE: 



HL: H-LINK 

HLII: H-LINKII 

(*) Systems = Indoor 

units + Outdoor units * 

Centralized control 

NOTE: 

Different indoor units from 

different systems cannot be 

connected using the same 

remote control once the 

option has been selected 

not to use the remote control 

operation cable. 

All optional units connected to 

CN3 can only be used in the 

master unit via a connected 

remote control. 

124 

3. System with indoor and outdoor units, and remote controls of type H-LINK with a central 

H-LINKII-type control 




indoor units 

Maximum number 

of indoor units 

Maximum number 

of equipment units 

(*) 

NOTE: 

TCGB0052-rev.1-07/2009 

0-15 0-15 0-63 

0-15 0-15 0-63 0-63 


4. System with indoor and outdoor units, and remote controls of type H-LINK and H-LINKII 

with a central H-LINK control 




indoor units 


indoor units 



NOTE: 

128 

145 

0-15 

0-15 


The following conditions are not available. 

Master 

unit 

Master 

unit 

Cannot 

connect 

128 

145 

Master 

unit 

Cannot 

connect



4.6. Standard cooling and heating capacities 

Outdoor 

Unit 

RAS-2HVRN1 

RAS-2.5HVRN1 

Outdoor 

Unit 

RAS-3HVRNS 

¡ 

¡ 


Indoor Unit 

125 

Capacity 

[kW] 

Power input 

[kW] 

TCGB0052-rev.1-07/2009 

Cooling Heating 

EER 

Cooling 

performance Capacity 

[kW] 

Power input 

[kW] 

COP 

Heating 

performance 

RCIM-2.0FSN2 5.0 1.48 3.38 A 5.6 1.44 3.89 A 

RCI-2.0FSN2E 5.0 1.26 3.97 A 5.6 1.18 4.75 A 

RCD-2.0FSN2 5.0 1.46 3.42 A 5.6 1.54 3.64 A 

RPC-2.0FSN2E 5.0 1.66 3.01 B 5.6 1.74 3.21 C 

RPI-2.0FSN2E 5.0 1.50 3.33 A 5.6 1.46 3.84 A 

RPF(I)-2.0FSN2E 5.0 1.48 3.38 A 5.6 1.52 3.69 A 

RPK-2.0FSN2M 5.0 1.40 3.57 A 5.6 1.47 3.81 A 

RPI-2.5FSN2E 6.0 2.26 2.65 D 7.0 2.05 3.41 B 

RCI-2.5FSN2E 6.0 1.83 3.28 A 7.0 1.84 3.80 A 

RPK-2.5FSN2M 6.0 1.76 3.41 A 7.0 1.74 4.02 A 

RCD-2.5FSN2 6.0 1.87 3.21 A 7.0 1.92 3.65 A 

RPF(I)-2.5FSN2E 6.0 2.04 2.94 C 7.0 2.04 3.43 B 

RPC-2.5FSN2E 6.0 2.10 2.86 C 7.0 2.27 3.08 D 


Indoor Unit 

Capacity 

[kW] 

Power input 

[kW] 


EER 

Cooling 


[kW] 

Power input 

[kW] 

COP 

Heating 

performance 

RCI-3.0FSN2E 7.1 2.32 3.06 B 8.0 2.43 3.29 C 

RPC-3.0FSN2E 7.1 2.52 2.82 C 8.0 2.53 3.16 D 

RPI-3.0FSN2E 7.1 2.63 2.70 D 8.0 2.52 3.17 D 

RCD-3.0FSN2 7.1 2.53 2.81 C 8.0 2.60 3.08 D 

RPK-3.0FSN2M 7.1 2.52 2.82 C 8.0 2.60 3.08 D 

RCI-1.5FSN2E (x2) 7.1 2.50 2.84 C 8.0 2.49 3.21 C 

RCIM-1.5 FSN2 (x2) 7.1 2.55 2.78 D 8.0 2.31 3.46 B 

RPI-1.5FSN2E (x2) 7.1 2.95 2.41 E 8.0 2.39 3.35 C 

RPIM-1.5FSN2E(x2) 7.1 2.56 2.77 D 8.0 2.68 2.99 D 

RCD-1.5FSN2 (x2) 7.1 2.71 2.62 D 8.0 2.38 3.36 C 

RPK-1.5FSN2M (x2) 7.1 2.67 2.66 D 8.0 2.48 3.23 C 

RPF-1.5FSN2E (x2) 7.1 2.95 2.41 E 8.0 2.46 3.25 C 

RPFI-1.5FSN2E (x2) 7.1 2.95 2.41 E 8.0 2.46 3.25 C 

4

Outdoor 

Unit 

RAS-4HVRNSE 

RAS-5HVRNSE 

RAS-6HVRNSE 



Indoor Unit 

126 

Capacity 

[kW] 

Power input 

[kW] 

TCGB0052-rev.1-07/2009 


EER 

Cooling 


[kW] 

Power input 

[kW] 

COP 

Heating 

performance 

RCI-4.0FSN2E 10.0 3.32 3.01 B 11.2 3.22 3.48 B 

RPC-4.0FSN2E 10.0 3.82 2.62 D 11.2 3.99 2.81 D 

RPI-4.0FSN2E 10.0 3.42 2.92 C 11.2 3.49 3.21 C 

RCD-4.0FSN2 10.0 3.60 2.78 D 11.2 3.49 3.21 C 

RPK-4.0FSN2M 10.0 3.45 2.90 C 11.2 3.68 3.04 D 

RCI-2.0FSN2E (x2) 10.0 3.32 3.01 B 11.2 3.19 3.51 B 

RCIM-2.0FSN2 (x2) 10.0 3.47 2.88 C 11.2 3.40 3.29 C 

RPC-2.0FSN2E (x2) 10.0 3.92 2.55 E 11.2 3.81 2.94 D 

RPI-2.0FSN2E (x2) 10.0 3.69 2.71 D 11.2 3.66 3.06 D 

RCD-2.0FSN2 (x2) 10.0 3.53 2.83 C 11.2 3.29 3.40 C 

RPK-2.0FSN2M (x2) 10.0 3.45 2.90 C 11.2 3.68 3.04 D 

RPF-2.0FSN2E (x2) 10.0 3.72 2.69 D 11.2 3.64 3.07 D 

RPFI-2.0FSN2E (x2) 10.0 3.72 2.69 D 11.2 3.64 3.07 D 

RCI-5.0FSN2E 12.5 3.88 3.22 - 14.0 4.11 3.41 - 

RPC-5.0FSN2E 12.5 4.36 2.87 - 14.0 4.55 3.08 - 

RPI-5.0FSN2E 12.5 4.06 3.08 - 14.0 4.20 3.33 - 

RCD-5.0FSN2 12.5 4.13 3.03 - 14.0 4.23 3.31 - 

RCI-2.5FSN2E (x2) 12.5 3.80 3.29 - 14.0 4.02 3.48 - 

RPC-2.5FSN2E (x2) 12.5 4.51 2.77 - 14.0 4.73 2.96 - 

RPI-2.5FSN2E (x2) 12.5 4.14 3.02 - 14.0 4.30 3.25 - 

RCD-2.5FSN2 (x2) 12.5 4.36 2.87 - 14.0 4.22 3.32 - 

RPK-2.5FSN2M (x2) 12.5 4.08 3.06 - 14.0 4.27 3.28 - 

RPF-2.5FSN2E (x2) 12.5 4.21 2.97 - 14.0 4.46 3.14 - 

RPFI-2.5FSN2E (x2) 12.5 4.21 2.97 - 14.0 4.46 3.14 - 

RCI-6.0FSN2E 14.0 4.98 2.81 - 16.0 4.88 3.28 - 

RPC-6.0FSN2E 14.0 5.47 2.56 - 16.0 5.18 3.09 - 

RPI-6.0FSN2E 14.0 5.09 2.75 - 16.0 4.95 3.23 - 

RCI-3.0FSN2E (x2) 14.0 4.56 3.07 - 16.0 4.22 3.79 - 

RPC-3.0FSN2E (x2) 14.0 5.65 2.48 - 16.0 5.33 3.00 - 

RPI-3.0FSN2E (x2) 14.0 5.11 2.74 - 16.0 4.98 3.21 - 

RCD-3.0FSN2 (x2) 14.0 5.17 2.71 - 16.0 5.06 3.16 - 

RPK-3.0FSN2M (x2) 14.0 5.26 2.66 - 16.0 5.03 3.18 -

Outdoor 

Unit 

RAS-8HRNSE 

RAS-10HRNSE 

¡ 




Indoor Unit 

127 

Capacity 

[kW] 

Power input 

[kW] 

TCGB0052-rev.1-07/2009 


EER 

Cooling 


[kW] 

Power input 

[kW] 

COP 

Heating 

performance 

RPI-8.0FSN2E 20.0 7.79 2.57 - 25.0 8.14 3.07 - 

RCI-4.0FSN2E (x2) 20.0 6.64 3.01 - 25.0 7.31 3.42 - 

RPC-4.0FSN2E (x2) 20.0 7.52 2.66 - 25.0 8.44 2.96 - 

RPI-4.0FSN2E (x2) 20.0 7.99 2.50 - 25.0 8.14 3.07 - 

RCD-4.0FSN2 (x2) 20.0 7.15 2.80 - 25.0 7.89 3.17 - 

RPK-4.0FSN2M (x2) 20.0 7.64 2.62 - 25.0 8.79 2.84 - 

RPI-10.0FSN2E 22.4 9.30 2.41 - 28.0 9.23 3.03 - 

RCI-5.0FSN2E (x2) 22.4 7.97 2.81 - 28.0 8.72 3.21 - 

RPC-5.0FSN2E (x2) 22.4 9.02 2.48 - 28.0 9.57 2.93 - 

RPI-5.0FSN2E (x2) 22.4 9.24 2.42 - 28.0 9.23 3.03 - 

RCD-5.0FSN2 (x2) 22.4 8.58 2.61 - 28.0 8.94 3.13 - 

In accordance with EC Directive 2002/31/E of March 2002. 

Performance 

Multi-Split Conditioner 

Class 


A 3.203.40 

C 3.00≥EER>2.80 3.40≥COP>3.20 

D 2.80≥EER>2.60 3.20≥COP>2.80 

E 2.60≥EER>2.40 2.80≥COP>2.60 

F 2.40≥EER>2.20 2.60≥COP>2.40 

G 2.20≥EER 2.40≥COP 

4



4.7. Maximum cooling capacities of the outdoor units 

¡ 


Outdoor unit CR 

RAS-2HVRN1 0.25 

RAS-2.5HVRN1 0.30 

¡ 

128 


temperature (DB) 

(ºC) 



RAS-3HVRNS 0.34 




¡ 



RAS-8HRNSE 0.74 


14/(20) 

Max. CAP 

TCGB0052-rev.1-07/2009 

16/(23) 

Max. CAP 

Indoor air inlet temperature WB (ºC) / (DB (ºC) 

18/(25) 

Max. CAP 

19/(26) 

Max. CAP 

20/(28) 

Max. CAP 

22/(30) 

Max. CAP 

24/(33) 

Max. CAP 

25 5.11 5.45 5.76 5.90 6.03 6.28 6.50 

30 5.01 5.35 5.66 5.80 5.93 6.18 6.40 

35 4.81 5.15 5.46 5.60 5.73 5.98 6.20 

40 4.56 4.90 5.21 5.35 5.48 5.73 5.95 

25 5.73 6.07 6.38 6.53 6.68 6.95 7.20 

30 5.58 5.92 6.23 6.38 6.53 6.80 7.05 

35 5.50 5.84 6.15 6.30 6.45 6.72 6.97 

40 5.10 5.45 5.76 5.90 6.03 6.25 6.43 



(ºC) 

15/(22) 

Max. CAP 


17/(24) 

Max. CAP 

18/(25) 

Max. CAP 

19/(26) 

Max. CAP 

21/(29) 

Max. CAP 

23/(31) 

Max. CAP 

25 7.50 7.91 8.30 8.50 8.70 8.90 

30 7.22 7.70 8.05 8.25 8.40 8.70 

35 7.05 7.40 7.80 8.00 8.19 8.44 

40 6.50 6.80 7.15 7.30 7.50 7.80 

25 10.50 11.20 11.40 11.75 12.40 12.60 

30 10.40 10.90 11.20 11.50 12.00 12.40 

35 10.25 10.60 10.90 11.20 11.70 12.20 

40 9.60 10.00 10.30 10.55 11.00 11.80 

25 13.20 14.00 14.80 14.70 15.60 15.80 

30 12.75 13.50 14.00 14.40 14.80 15.45 

35 12.25 13.00 13.60 14.00 14.50 14.80 

40 11.50 12.30 12.70 13.00 13.50 14.00 

25 15.50 16.35 16.60 17.00 17.60 18.10 

30 15.20 16.00 16.30 16.60 17.45 17.70 

35 14.30 15.20 15.55 16.00 16.45 16.90 

40 13.55 14.45 14.75 15.20 15.65 16.45 



(ºC) 

15/(22) 

Max. CAP 


17/(24) 

Max. CAP 

18/(25) 

Max. CAP 

19/(26) 

Max. CAP 

21/(29) 

Max. CAP 

23/(31) 

Max. CAP 

25 20.38 21.68 22.36 23.08 24.55 26.04 

30 20.09 21.42 22.12 22.85 24.31 25.84 

35 19.22 20.74 21.59 22.40 23.83 25.10 

40 18.21 19.71 20.56 21.45 23.04 24.33 

25 25.83 27.56 28.48 29.41 31.22 33.03 

30 24.92 27.00 27.90 28.73 30.46 31.89 

35 24.23 26.15 27.09 28.00 29.62 31.21 

40 23.14 24.96 25.87 26.79 28.56 30.05 

NOTE: 

CAP max: Compressor capacity at maximum frequency (kW) 

CR: Correction ratio due to humidity.



4.8. Maximum heating capacities of the outdoor units 

¡ 

Outdoor unit 

RAS-2HVRN1 

RAS-2.5HVRN1 

¡ 

Outdoor unit 

RAS-3HVRNS 

RAS-4HVRNSE 

RAS-5HVRNSE 

RAS-6HVRNSE 



temperature 

(WB) (ºC) 


129 

16 

Max. CAP 

TCGB0052-rev.1-07/2009 

18 

Max. CAP 

Indoor air inlet temperature (WB) (ºC) 

20 

Max. CAP 

22 

Max. CAP 

24 

Max. CAP 

-15 4.50 4.45 4.40 4.35 4.30 

-10 5.15 5.10 5.05 5.00 4.95 

-5 6.18 6.18 6.18 6.18 6.18 

0 6.45 6.40 6.35 6.30 6.25 

5 7.10 4.04 6.69 6.88 6.80 

6 7.23 7.17 7.10 7.03 6.95 

10 7.90 7.85 7.80 7.75 7.70 

15 8.79 8.75 8.68 8.59 8.49 

-15 4.00 3.98 3.95 3.90 3.84 

-10 4.80 4.75 4.70 4.65 4.60 

-5 5.60 5.52 5.45 5.40 5.36 

0 6.30 6.25 6.20 6.15 6.10 

5 7.04 7.00 6.95 6.88 6.80 

6 7.19 7.15 7.10 7.03 6.95 

10 7.89 7.85 7.80 7.73 7.65 

15 8.79 8.72 8.64 8.58 8.51 

Outdoor 

air inlet 

temperature 

(WB) (°C) 

16 

Max. CAP 

18 

Max. CAP 


20 

Max. CAP 

22 

Max. CAP 

24 

Max. CAP 

26 

Max. CAP 

28 

Max. CAP 

-10 5.80 5.70 5.60 5.60 5.50 - - 

-5 6.78 6.70 6.70 6.42 6.24 - - 

0 7.82 7.72 7.43 7.43 6.98 - - 

5 8.90 8.72 8.51 8.23 7.97 - - 

10 9.94 9.66 9.32 9.06 8.82 - - 

15 11.03 10.54 10.28 10.04 9.78 - - 

-10 8.05 8.00 7.90 7.80 7.60 7.40 7.30 

-5 9.50 9.30 9.25 9.20 9.10 9.00 9.00 

0 10.85 10.95 10.90 10.80 10.70 10.55 10.50 

5 12.40 12.20 12.15 12.10 12.05 12.00 12.00 

10 13.95 13.85 13.80 13.70 13.60 13.50 13.40 

15 15.30 15.25 15.15 15.10 15.10 15.00 15.00 

-10 10.75 10.60 10.45 10.35 10.30 10.25 10.20 

-5 12.30 12.20 12.15 12.10 12.05 12.00 11.95 

0 14.20 14.10 14.00 13.90 13.80 13.60 13.50 

5 15.90 15.80 15.70 15.60 15.30 15.20 15.10 

10 17.80 17.70 17.60 17.40 17.20 17.05 17.00 

15 19.75 19.65 19.50 19.35 19.10 19.00 18.40 

-10 11.40 11.30 11.25 11.20 11.20 11.15 11.10 

-5 13.60 13.45 13.40 13.30 13.20 13.15 13.10 

0 15.70 15.65 15.50 15.30 15.15 15.10 15.00 

5 17.85 17.80 17.60 17.45 17.15 17.10 17.00 

10 20.00 19.90 19.80 19.65 19.40 19.30 19.20 

15 22.20 22.10 22.00 21.85 21.75 21.55 21.40 

NOTE: 


4

¡ 

Outdoor unit 

RAS-8HRNSE 

RAS-10HRNSE 

NOTE: 





temperature 

(WB) (ºC) 

130 

16 

Max. CAP 

TCGB0052-rev.1-07/2009 

18 

Max. CAP 


20 

Max. CAP 

22 

Max. CAP 

24 

Max. CAP 

26 

Max. CAP 

28 

Max. CAP 

-10 15.78 15.73 15.67 15.62 15.59 15.58 15.55 

-5 18.73 18.66 18.59 18.54 18.48 18.45 18.39 

0 21.69 21.59 21.51 21.44 21.37 21.30 21.23 

5 24.64 24.52 24.42 24.33 24.24 24.15 24.06 

10 27.75 27.60 27.45 27.29 27.13 26.97 26.81 

15 30.97 30.73 30.49 30.27 30.04 29.82 29.60 

-10 19.99 19.85 19.73 19.62 19.51 19.40 19.29 

-5 23.64 23.52 23.41 23.32 23.21 23.11 23.01 

0 27.29 27.18 24.23 27.01 26.91 26.83 26.74 

5 30.95 30.88 30.81 30.74 30.65 30.54 30.45 

10 34.84 34.71 34.58 34.45 34.26 34.07 33.91 

15 38.74 38.59 38.39 38.17 37.96 37.75 37.55 


4.9. Correction factors 

4.9.1. Piping length correction factor 

The correction factor is based on the equivalent piping 

length in meters (EL) and the height between outdoor and 

indoor units in meters (H). 

H: 

Height between indoor unit and outdoor unit (m). 

− H>0: Position of outdoor unit is higher 

than position of indoor unit (m). 

− H

Cooling capacity: 



The cooling capacity should 

be corrected according to 

the following formula: 

CCA = CC x F 

CCA: 

Actual corrected cooling 

capacity (kW). 

CC: 

Cooling capacity from cooling 

capacity table (kW). 

F: 

Correction factor based on the 

equivalent piping length (in %). 

131 

¡ RAS-(2/2.5)HVRN1 

Cooling 

¡ RAS-(3~10)H(V)RNS(E) 

Cooling 

Cooling 

TCGB0052-rev.1-07/2009 


RAS-3HVRNS 

RAS-4HVRNSE 

4

Cooling capacity: 



The cooling capacity should 



CCA = CC x F 

CCA: 

Actual corrected cooling 

capacity (kW). 

CC: 

Cooling capacity from cooling 


F: 



132 

Cooling 

Cooling 

Cooling 

Cooling 

TCGB0052-rev.1-07/2009 

RAS-5HVRNSE 

RAS-6HVRNSE 

RAS-8HRNSE 

RAS-10HRNSE

Heating capacity 



The heating capacity should 



HCA = HC x F 

HCA: 

Actual corrected heating 

capacity (kW) 

HC: 

Heating capacity from heating 


F: 



133 

¡ RAS-(2/2.5)HVRN1 

Heating 

¡ RAS-(3~10)H(V)RNS(E) 

Heating 

Heating 

TCGB0052-rev.1-07/2009 


RAS-3HVRNS 

RAS-(4/5/6)HVRNSE 

4

Heating capacity 



The heating capacity should 



HCA = HC x F 

HCA: 

Actual corrected heating 

capacity (kW) 

HC: 

Heating capacity from heating 


F: 



NOTE: 

- Defrost correction factor 

corresponds to a relative 

humidity of 85%. If the 

condition changes, the 

correction factor will be 

different. 

- Defrost correction factor 

is not valid for special 

conditions such as during 

snow or operation in a 

transitional period. 

134 

Heating 

4.9.2. Defrost correction factor 

TCGB0052-rev.1-07/2009 


The heating capacity does not include operation during frost or defrosting. 

When this type of operation is taken in account, the heating capacity must be corrected 

according to the following equation: 

Correction heating capacity = Correction factor x heating capacity 

Outdoor inlet air temp. (ºC DB) 

(HR = 85% ) 

-7 -5 -3 0 3 5 7 

Defrost correction factor f d 0.95 0.93 0.88 0.85 0.87 0.90 1.00 

Heating 

capacity 

Reduced 

capacity due to 

frost build-up 

1 cycle 

Time 

Max. defrosting 9 min.



4.10. Sensible heat factor (SHF) 

The sensible heat factor of indoor units at each fan speed (Hi, Me, Lo) based on the JIS Standard B8616, is given 

below: 

Indoor unit model 

Hi 

SHF 

Med Low 

RCI-1.5FSN2E 0.77 0.75 0.73 

RCI-2.0FSN2E 0.78 0.76 0.75 

RCI-2.5FSN2E 0.73 0.71 0.69 

RCI-3.0FSN2E 0.79 0.76 0.72 

RCI-4.0FSN2E 0.78 0.75 0.72 

RCI-5.0FSN2E 0.74 0.70 0.68 

RCI-6.0FSN2E 0.73 0.69 0.68 

RCIM-1.5FSN2 0.74 0.71 0.70 

RCIM-2.0FSN2 0.71 0.68 0.67 

RCD-1.5FSN2 0.73 0.69 0.66 

RCD-2.0FSN2 0.75 0.67 0.65 

RCD-2.5FSN2 0.74 0.67 0.65 

RCD-3.0FSN2 0.74 0.67 0.65 

RCD-4.0FSN2 0.73 0.67 0.65 

RCD-5.0FSN2 0.69 0.67 0.65 

RPC-2.0FSN2E 0.72 0.70 0.67 

RPC-2.5FSN2E 0.72 0.70 0.67 

RPC-3.0FSN2E 0.72 0.70 0.67 

RPC-4.0FSN2E 0.72 0.70 0.67 

RPC-5.0FSN2E 0.72 0.70 0.67 

RPC-6.0FSN2E 0.72 0.70 0.67 

RPI-1.5FSN2E 0.73 0.69 0.65 

RPI-2.0FSN2E 0.76 0.75 0.74 

RPI-2.5FSN2E 0.76 0.74 0.72 

RPI-3.0FSN2E 0.75 0.71 0.67 

RPI-4.0FSN2E 0.73 0.71 0.65 

RPI-5.0FSN2E 0.72 0.68 0.64 

RPI-6.0FSN2E 0.72 0.69 0.67 

RPI-8.0FSN2E 0.77 0.77 0.70 

RPI-10.0FSN2E 0.79 0.79 0.72 

RPIM-1.5FSN2E 0.71 0.68 0.64 

RPK-1.5FSN2M 0.73 0.72 0.70 

RPK-2.0FSN2M 0.72 0.72 0.70 

RPK-2.5FSN2M 0.72 0.72 0.70 

RPK-3.0FSN2M 0.71 0.72 0.70 

RPK-4.0FSN2M 0.71 0.72 0.70 

RPF-1.5FSN2E 0.73 0.69 0.65 

RPF-2.0FSN2E 0.73 0.69 0.65 

RPF-2.5FSN2E 0.73 0.69 0.65 

RPFI-1.5FSN2E 0.73 0.69 0.65 

RPFI-2.0FSN2E 0.73 0.69 0.65 

RPFI-2.5FSN2E 0.73 0.69 0.65 

135 

TCGB0052-rev.1-07/2009 

4



4.11. Fan performance 

4.11.1. RPI(M)-(1.5~10.0)FSN2E 

External static pressure (Pa) 



136 

RPIM-1.5FSN2E RPI-1.5FSN2E 

TCGB0052-rev.1-07/2009 


Air flow (m³/min) Air flow (m³/min) 

RPI-2.0FSN2E RPI-2.5FSN2E 





Air flow (m³/min) Air flow (m³/min)



¡ RPI(M)-(1.5~10.0)FSN2E (Continued) 



¡ Meaning of the rated fan performance values 

Indoor unit 

RPI(M)-1.5FSN2E 

RPI-2.0~6.0FSN2E 

RPI-8.0/10.0FSN2E 

137 


TCGB0052-rev.1-07/2009 




* 




settings 

NOTES: 

“•”: Nominal point 

V : Fan motor speed 

(1,2,3,4) 

(*): Standard air filter pressure loss 

(*1): Speed factory setting 

SP: Static pressure (Pa) 

LSP: Low static pressure 

HSP: High static pressure 

RCS: Remote control switch 

Fan speed (RCS) 

Hi Med Low 

SP-01 v1 v2 v2 

SP-00 (*1) v2 v2 v3 

SP-02 v2 v2 v3 

SP-01 v1 v2 v3 

SP-00 (*1) v2 v3 v4 

SP-02 v3 v3 v4 

HSP v1 v1 v3 

LSP (*1) v2 v2 v4 

CAUTION: 

- For RPI 2.0~6.0 HP units, in the case of installations with a short duct, ensure that SP-02 is selected on the remote control switch. 

To configure SP-02, check the optional functions → ”02” , low static pressure option. 

In case of RPI 8.0/10.0HP units, make sure that the low static pressure (LSP) option is selected. 

- Maintain a minimum resistance in the duct, as shown in the fan performance charts. 

If you turn on the unit with a duct that is too short, the unit will operate outside the acceptable working range. 

* 

4

Heat exchange efficiency (%) 

Static pressure (Pa) 





4.11.2. KPI – Fan performance 

138 

KPI-502E1E KPI-802E1E 

Temperature 

exchange 

efficiency 

Energy 

efficiency 

(heating) 

Energy 

efficiency 

(cooling) 

TCGB0052-rev.1-07/2009 

Duct length Ø 200 




KPI-1002E1E KPI-1502E1E 

Temperature 

exchange 

efficiency 

Energy 

efficiency 

(heating) 

Energy 

efficiency 

(cooling) 





Temperature 

exchange 

efficiency 

Energy 

efficiency 

(heating) 

Energy 

efficiency 

(cooling) 

Temperature 

exchange 

efficiency 

Energy 

efficiency 

(heating) 

Energy 

efficiency 

(cooling) 


Duct length Ø 300





139 

KPI-2002E1E KPI-3002H1E 

Temperature 

exchange 

efficiency 

Energy 

efficiency 

(heating) 

Energy 

efficiency 

(cooling) 

TCGB0052-rev.1-07/2009 





Temperature 

exchange 

efficiency 

Energy 

efficiency 

(heating) 

Energy 

efficiency 

(cooling) 


4



4.12. Temperature distribution diagrams 


Model: RCI-1.5FSN2E 

Air-throw distance: 2.7 m 

(with air speed of: 0.3 m/s) 










140 

Vertical temperature distribution 

Cooling 

(Indoor temperature: 

27 °C DB/19 °C WB) 

TCGB0052-rev.1-07/2009 

Heating 


20 °C DB) 

NOTE: 

The air is discharged almost symmetrically. 

These figures show the distribution when no obstruction is present. 

Horizontal temperature distribution (Height: 

1.2 m) 

Cooling 


27 °C DB/19 °C WB) 

Heating 


20 °C DB)

¡ 



RCI – 4-way cassette type (cont.) 










NOTE: 

141 

TCGB0052-rev.1-07/2009 


Cooling 


27 °C DB/19 °C WB) 

Heating 


20 °C DB) 




1.2 m) 

Cooling 


27 °C DB/19 °C WB) 

Heating 


20 °C DB) 

4

¡ 




Model: RCIM-1.5FSN2 



Model: RCIM-2.0FSN2 



NOTE: 

142 

TCGB0052-rev.1-07/2009 


Cooling 


27 °C DB/19 °C WB) 

Heating 


20 °C DB) 



Horizontal temperature distribution 

(Height: 1.2 m) 

Cooling 


27 °C DB/19 °C WB)




Model: RCD-1.5FSN2 









NOTE: 

143 


Cooling 


27 °C DB/19 °C WB) 

TCGB0052-rev.1-07/2009 

Heating 


20 °C DB) 




1.2 m) 

Cooling 


27 °C DB/19 °C WB) 

Heating 


20 °C DB) 

4



¡ 

RCD 2-way cassette type (cont). 










NOTE: 

144 

TCGB0052-rev.1-07/2009 


Cooling 


27 °C DB/19 °C WB) 

Heating 


20 °C DB) 




1.2 m) 

Cooling 


27 °C DB/19 °C WB) 

Heating 


20 °C DB)




Model: 

RPC-(2.0/2.5)FSN2E 



Model: 

RPC-(3.0/4.0)FSN2E 



Model: 

RPC-(5.0/6.0)FSN2E 



NOTE: 

145 

Cooling 


27 °C DB/19 °C WB) 



TCGB0052-rev.1-07/2009 


Heating 


20 °C DB) 

4




Model: 

RPK-(1.5/2.0)FSN2M 



Model: 

RPK-2.5FSN2M 



Model: 

RPK-3.0FSN2M 



Model: 

RPK-4.0FSN2M 



NOTE: 

146 

(m) 

(m) 

(m) 

(m) 

Cooling 


27 °C DB/19 °C WB) 



TCGB0052-rev.1-07/2009 


Heating 


20 °C DB) 

(m) 

(m) 

(m) 

(m)



4.13. Sound data 

Octave sound pressure (dB (C)) 


147 

TCGB0052-rev.1-07/2009 


Model: RCI-1.5 Power supply: 230 V 50 Hz 

Measurement point: 1.5 meters below the unit 

Approximate 

continuous noise 

detection threshold 


Acoustic criteria curve 

Hi/Me/Lo: 32/30/28 dB(A) 

Model: RCI-2.0 Power supply: 230 V 50 Hz Model: RCI-2.5 Power supply: 230 V 50 Hz 



Approximate 




Hi/Me/Lo: 32/30/28 dB(A) 


Approximate 



Frequency (Hz) Frequency (Hz) 


Hi/Me/Lo: 32/30/28 dB(A) 

4







Approximate 



148 


Hi/Me/Lo: 34/32/30 dB(A) 

TCGB0052-rev.1-07/2009 



Approximate 





Hi/Me/Lo: 38/35/33 dB(A) 




Approximate 




Hi/Me/Lo: 39/37/35 dB(A) 


Approximate 





Hi/Me/Lo: 42/40/36 dB(A)


¡ 




Model: RCIM-1.5 

149 

TCGB0052-rev.1-07/2009 

Power supply: 

230 V 50 Hz 

Model: RCIM-2.0 

Power supply: 

230 V 50 Hz 

Measurement point: 1.5 meters below the unit Measurement point: 1.5 meters below the unit 

Approximate 



Acoustic criteria curve Acoustic criteria curve 

Hi/Med/Lo: 38/35/33 dB(A) Hi/Med/Lo: 42/39/37 dB(A) 


Approximate 




4





150 

TCGB0052-rev.1-07/2009 


Model: RCD-1.5 Power supply: 230 V 50 Hz 


Approximate 





Hi/Me/Lo: 35/32/30 dB(A) 

Model: RCD-2.0 Power supply: 230 V 50 Hz Model: RCD-2.5/3.0 Power supply: 230 V 50 Hz 



Approximate 




Hi/Me/Lo: 35/32/30 dB(A) 


Approximate 





Hi/Me/Lo: 38/34/31 dB(A)





Model: RCD-4.0 Power supply: 230 V 50 Hz Model: RCD-5.0 Power supply: 230 V 50 Hz 


Approximate 




151 


Hi/Me/Lo: 40/36/33 dB(A) 

TCGB0052-rev.1-07/2009 



Approximate 





Hi/Me/Lo: 43/40/36 dB(A) 

Model: RPC-2.0 Power supply: 230 V 50 Hz Model: RPC-2.5 Power supply: 230 V 50 Hz 

Measurement point: 1 meter below the unit 


Approximate 




Hi/Me/Lo: 44/42/38 dB(A) 




Approximate 





Hi/Me/Lo: 46/43/41 dB(A) 

4








Approximate 



152 


Hi/Me/Lo: 48/45/42 dB(A) 

TCGB0052-rev.1-07/2009 





Approximate 




Hi/Me/Lo: 49/45/39 dB(A) 





Approximate 



Hi/Me/Lo: 49/46/41 dB(A) 





Approximate 




Hi/Me/Lo: 50/48/44 dB(A)





4.13.4. RPI – In-the-ceiling type 

Model: RPI-1.5 Power supply: 230 V 50 Hz Model: RPI-2.0 Power supply: 230 V 50 Hz 


Approximate 



153 


Hi/Lo: 34/31 dB(A) 

TCGB0052-rev.1-07/2009 


Approximate 





Hi/Lo: 33/29 dB(A) 



Approximate 




Hi/Lo: 35/30 dB(A) 


Approximate 





Hi/Lo: 35/31 dB(A) 

4







Approximate 



154 


Hi/Lo: 37/35 dB(A) 

TCGB0052-rev.1-07/2009 



Approximate 





Hi/Me/Lo: 39/36 dB(A) 




Approximate 




Hi/Me/Lo: 40/38 dB(A) 


Approximate 





Hi/Me/Lo: 54/54/51 dB(A)





Model: RPI-10.0 Power supply: 230 V 50 Hz 


Approximate 



¡ 

155 


RPIM – In-the-ceiling type (cont.) 


Hi/Me/Lo: 55/55/52 dB(A) 

Model: RPIM-1.5 Power supply: 230 V 50 Hz 


Approximate 





Hi/Lo: 33/29 dB(A) 

TCGB0052-rev.1-07/2009 

4






Model: RPK-1.5 Power supply: 230 V 50 Hz Model: RPK-2.0 Power supply: 230 V 50 Hz 



Approximate 



156 


Hi/Me/Lo: 40/38/36 dB(A) 

TCGB0052-rev.1-07/2009 




Approximate 





Hi/Me/Lo: 41/39/37 dB(A) 

Model: RPK-2.5/3.0 Power supply: 230 V 50 Hz Model: RPK-4.0 Power supply: 230 V 50 Hz 



Approximate 




Hi/Me/Lo: 43/40/37 dB(A) 




Approximate 





Hi/Me/Lo: 49/46/43 dB(A)




4.13.6. RPF – Floor type 

157 

TCGB0052-rev.1-07/2009 


Model: RPF-1.5 Power source: 230 V 50 Hz 

Measurement point: 1 m from floor level 

1 m from the unit front surface 

Approximate 





Hi/Me/Lo: 38/35/31 dB(A) 

Model: RPF-2.0 Power supply: 230 V 50 Hz Model: RPF-2.5 Power source: 230 V 50 Hz 



Approximate 




Hi/Me/Lo: 39/36/32 dB(A) 




Approximate 





Hi/Me/Lo: 42/38/34 dB(A) 

4




4.13.7. RPFI – Floor concealed type 

158 

TCGB0052-rev.1-07/2009 


Model: RPFI-1.5 Power supply: 230 V 50 Hz 



Approximate 





Hi/Me/Lo: 38/35/31 dB(A) 

Model: RPFI-2.0 Power supply: 230 V 50 Hz Model: RPFI-2.5 Power supply: 230 V 50 Hz 




Approximate 







Hi/Me/Lo: 39/36/32 dB(A) Hi/Me/Lo: 42/38/34 dB(A) 

Approximate 



Frequency (Hz) Frequency (Hz)





4.13.8. KPI 

Model: KPI-502E1E Power supply: 230 V 50 Hz Model: KPI-802E1E Power supply: 230 V 50 Hz 

Measurement point: 1.5 meters below the unit with noise 

protected duct 

Approximate 



159 


E-Hi/Hi/Me/Lo: 35/34/32/31 dB(A) 

TCGB0052-rev.1-07/2009 




Approximate 





E-Hi/Hi/Me/Lo: 36/34/33/32 dB(A) 

Model: KPI-1002E1E Power supply: 230 V 50 Hz Model: KPI-1502E1E Power supply: 230 V 50 Hz 



Approximate 




E-Hi/Hi/Me/Lo: 38/37/34/32 dB(A) 




Approximate 





E-Hi/Hi/Me/Lo: 40/39/37/35 dB(A) 

4




Model: KPI-1502E1E Power source: 230 V 50 Hz Model: KPI-3002H1E Power source: 230 V 50 Hz 



160 



Hi/Me/Lo: 41/40/37 dB(A) Hi/Me/Lo: 45/43/40 dB(A) 

TCGB0052-rev.1-07/2009 









4.13.8. RAS – UTOPIA DC INVERTER ES outdoor units 

¡ 


Model: RAS-2HVRN1 Power supply: 230 V, 50 Hz Model: RAS-2.5HVRN1 Power supply: 230 V, 50 Hz 

Measurement point: 1 meter from the unit 

front surface 

1.5 m from floor level 

Approximate 

continuous 

noise detection 

threshold 

¡ 


Cooling/Heating/Night mode: 45/47/43 dB(A) 

161 

Heating 

Cooling 

Night mode 

RAS-(3~10)H(V)RNS(E) 

TCGB0052-rev.1-07/2009 



front surface 



Approximate 

continuous 




Heating 

Cooling 

Night mode 


Model: RAS-3HVRNS Power supply: 230 V, 50 Hz Model:RAS-4HVRNSE Power supply: 230 V, 50 Hz 


front surface 




Approximate 

continuous 



Heating 

Cooling 

Night mode 



front surface 




Heating 

Approximate 

continuous 



Cooling 

Night mode 


4





Model: RAS-5HVRNSE Power supply: 230 V, 50 Hz Model:RAS-6HVRNSE Power supply: 230 V, 50 Hz 


front surface 



Approximate 

continuous 




Heating 

162 

Cooling 

Night mode 

TCGB0052-rev.1-07/2009 



front surface 




Approximate 

continuous 



Heating 

Cooling 

Night mode 


Model: RAS-8HRNSE Power supply: 400 V, 50 Hz Model:RAS-10HRNSE Power supply: 400 V, 50 Hz 


front surface 




Approximate 

continuous 



Heating 

Night mode 

Cooling 



front surface 




Approximate 

continuous 



Heating 

Night mode 

Cooling 


Working range 

163 

TCGB0052-rev.1-07/2009 

5. Working range 

This chapter shows the working range of the new UTOPIA DC INVERTER ES series. 

Contents 

5. Working Range ......................................................................................................163 

5.1. Power supply ...................................................................................................................................... 164 

5.2. Temperature range ............................................................................................................................. 164 

5

NOTES: 

DB: dry bulb; WB: wet bulb 

Working range 

Operation control range 

164 

5.1. Power supply 

TCGB0052-rev.1-07/2009 

Operating voltage 90% to 110% of the nominal voltage 

Voltage imbalance 

Within a 3% deviation from each voltage at the 

main terminal of the outdoor unit 

Starting voltage Higher than 85% of the nominal voltage 

Following Council Directive 89/336/EEC and amendments 92/31/EEC and 93/68/ 

EEC, relating to electromagnetic compatibility, the following table indicates maximum 

permissible system impedance Z max at the interface point of the user’s power supply, in 

accordance with EN61000-3-11. 

MODEL Z max (Ω) 

RAS-3HVRNS 0,44 

RAS-4HVRNSE 0,31 



RAS-8HRNSE - 

RAS-10HRNSE - 

Harmonics situation of each model regarding IEC 61000-3-2 and IEC 61000-3-12 is as 

follows: 

5.2. Temperature range 

MODELS SITUATION REGARDING IEC 

61000-3-2 AND IEC 61000-3-12 

Equipment complying with IEC 61000-3-2 

(professional use) 

Equipment complying with IEC 61000-3-12 

The temperature range is indicated in the following table: 

Indoor 

temperature 

Outdoor 

temperature 

(*) -15ºC WB for RAS-2/2.5HVRN1 

Temperature range diagram: 

Outside air temperature (°C DB) 

MODELS 

RAS-2HVRNSE 

RAS-2.5HVRNSE 

RAS-3HVRNSE 

RAS-4HVRNSE 

RAS-5HVRNSE 

RAS-6HVRNSE 

RAS-8HRNSE 

RAS-10HRNSE 

Operation with cooling Operation with heating 

Minimum 21 °C DB/15 °C WB 15 °C DB 

Maximum 32 °C DB/23 °C WB 27 °C DB 

Minimum -5 °C DB -10 °C WB (*) 

Maximum 43 °C DB 15 °C WB 

Operation with cooling Operation with heating 

Outside air temperature (°C WB) 

Indoor air inlet temperature (°C WB) Indoor air inlet temperature (°C DB)

Refrigerant cycle 

165 

TCGB0052-rev.1-07/2009 

6 . Refrigerant cycle 

This section shows the refrigerant cycle diagrams for the units of the new UTOPIA DC INVERTER ES series. 

Contents 

6. Refrigerant cycle ...................................................................................................165 

6.1. Example of single combination ........................................................................................................... 166 

6.2. Example of twin combination .............................................................................................................. 167 

6.3. Example of triple combination ............................................................................................................ 168 

6.4. Example of quad combination ............................................................................................................ 169 

6


6.1. Example of single combination 

RAS-3HVRNS 

Refrigerant flow 

for cooling 


for heating 

166 


in the installation 

No. Name of item 

1 Compressor 

2 Heat exchanger 

3 Acumulator 

4 Expansion valve 

5 Reverse valve 

6 Strainer (1/4) 

7 Distributor 

8 Check joint 

9 High-pressure switch (protection) 

10 Pressure switch (control) 

11 Stop valve for gas line 

12 Stop valve for liquid line 

TCGB0052-rev.1-07/2009 

Connection with 

flare nut 

Flange 

connection 

Brazing 

connection 

R410A 4.15 MPa 

Refrigerant 


13 Ambient thermistor 

14 Evaporator pipe thermistor 

15 Discharge gas thermistor 

16 Indoor exchanger 

17 Strainer 


19 Distributor 

Airtight test 

pressure


6.2. Example of twin combination 

RAS-5HVRNSE 


for cooling 


for heating 

167 






3 Silencer 



6 Solenoid valve 

7 Strainer 

8 Distributor 

9 Check joint 




TCGB0052-rev.1-07/2009 


flare nut 

Flange 

connection 

Brazing 

connection 

R410A 4.15 MPa 

Refrigerant 






17 Capillary tube 

18 Silencer 

19 Multikit (liquid) 

20 Multikit (gas) 


22 Strainer 





6


6.3. Example of triple combination 

RAS-6HVRNSE 


for cooling 


for heating 

168 






3 Silencer 




7 Filter 

8 Distributor 

9 Check joint 




TCGB0052-rev.1-07/2009 


flare nut 

Flange 

connection 

Brazing 

connection 

R410A 4.15 MPa 

Refrigerant 







18 Silencer 




22 Silencer 




pressure


6.4. Example of quad combination 

RAS-10HRNSE 


for cooling 


for heating 

169 






3 Silencer 




7 Filter 

8 Distributor 

9 Check joint 




TCGB0052-rev.1-07/2009 


flare nut 

Flange 

connection 

Brazing 

connection 

R410A 4.15 MPa 

Refrigerant 







18 Silencer 




22 Silencer 





6

Piping and 

refrigerant charge 

171 

TCGB0052-rev.1-07/2009 

7. Piping and refrigerant charge 

This section describes how to connect the refrigerant piping and change the amount of refrigerant in the system for the 

UTOPIA DC INVERTER ES series. 

Contents 

7. Piping and refrigerant charge ............................................................171 

7.1. Refrigerant piping selection ........................................................................................172 

7.1.1. Refrigerant piping range .....................................................................................................172 

7.1.2. Refrigerant piping length by dip switch setting ...................................................................173 

7.1.3. Selecting the refrigerant piping ..........................................................................................174 

7.2. Multikits and distributors .............................................................................................175 

7.2.1. Multikits for twin installation ................................................................................................175 

7.2.3. Distribution method ............................................................................................................177 

7.2.3. Copper pipes and sizes ......................................................................................................179 

7.3. Amount refrigerant charge ..........................................................................................181 

7.3.1. Additional refrigerant charge calculation (R410A) ..............................................................181 

7.3.2. Simple example of refrigerant charge quantity calculation ................................................182 

7.4. Caution in case of refrigerant leakage ........................................................................183 

7.4.1. Maximum permitted concentration of HFCs .......................................................................183 

7.4.2. Calculation of refrigerant concentration .............................................................................183 

7.4.3. Countermeasure for refrigerant leakage ............................................................................184 

7

Piping and 


7.1. Refrigerant piping selection 

7.1.1. Refrigerant piping range 

CAUTION: 

− 

− 

− 

¡ 

The liquid piping and the gas piping must be of the same length and run along the same route. 

Multikits for multiple connections (optional accessory as system parts) must be used to install the branch 

pipe to the indoor unit. 

Install Multikits on the same horizontal level. 

Piping system 

Single system Twin system Triple system 

NOTE: 

172 

L= A + the longest of B and C L= A + the longest of B, C and D 

TCGB0052-rev.1-07/2009 

Quad system 

L= A + B + longest of D, E and A + C + longest of F and G. 

L and H are the length and height indicated in the above chart. 

For twin, triple and quad systems, the length is the distance between the outdoor unit and the farthest indoor unit. 

Mark Maximum piping length 2/2.5 HP 3 HP 4~6 HP 8/10 HP 

L 

H 

Actual piping length 

Equivalent piping length 

Outdoor unit higher than indoor unit 

Indoor unit higher than outdoor unit 

Height difference between indoor units. 

30 

40 

30 

20 

0,5 

30 

40 

30 

20 

0,5 

Total piping length 40 (Twin) 40 

50 

70 

30 

20 

0,5 

(Twin) 60 

(Triple) 70 

50 

70 

30 

20 

0,5 

(m) 

(Twin) 60 

(Triple) 70 

(Quad) 80

Piping and 


Piping length after branch pipe (B,C and D for single, twin and triple system),(B,C,D,E,F and G for quad system): 

1. After branch pipe, the pipe length should be under 10 m. 

2. All branch piping B, C, D, E, F and G (as appropriate), should be balanced, and the difference between these 

sections cannot be greater than indicated in the table below. 

(m) 

173 

TCGB0052-rev.1-07/2009 

RAS-(3~6)HVRNS(E) RAS-(8/10)HRNSE 

Twin Difference between B and C. 8 8 

Triple Difference between B, C and D. 6 8 

Quadruple 

Difference between (D+B)-(F+C), 

(D+B)-(G+C), (E+B)-(F+C), 

(E+B)-(G+C), D-E, F-G. 

- 8 

7.1.2. Refrigerant piping length by dip switch setting 

The refrigerant piping between the indoor and outdoor units must be designed using the following chart. 

Keep the design within the dark area of the chart, which shows the applicable height difference according to 

piping length. 

If the length is under 5 meters, contact the Hitachi dealer. 

¡ 

Height difference 

(m) 

When outdoor 

unit is installed 

higher than 

indoor unit 

When outdoor 

unit is installed 

lower than 

indoor unit 

Piping length specification 

Capacity 

Total length between outdoor 

unit and each indoor unit. 

Setting 

before 

shipment 

Liquid Ø6.35 Ø9.53 Ø12.7 5* Ø15.88 

Gas Ø12.7 Ø15.88 Ø19.05 Ø12.7 Ø15.88 Ø19.05 Ø22.2 Ø25.4 Ø15.88 Ø19.05 Ø22.2 Ø25.4 Ø28.6 Ø25.4 Ø28.6 

RAS-2/2.5HVRN1 30 30 - 15 3* 15 3* - - - - - - - - - - 

RAS-3HVRNS 20 1*2* 20 2* - 30 1* 30 - - - - - - - - - - 

RAS-(4~6)H(V)RNSE - 5 2* 5 2* 40 1* 50 50 4* - - 30 3* 30 3*4* - - - - - 

RAS-8HRNSE - - - - - 30 1*4* 30 1* 50 - 30 1*3*4* 30 1*3* 30 3* - - - 

RAS-10HRNSE - - - - - - - 30 5* - - 30 1*3* 50 3*5* 50 3* 20 3* 20 3* 

(1*) If the gas piping is smaller, the cooling performance drops, and the operating range is reduced because the pressure loss in the gas piping increases. 

(2*) If the liquid piping is smaller the expansion valve capacity of the indoor unit is reduced. 

(3*) If the liquid piping is larger refrigerant has to be added. 

(4*) If the gas piping is Ø 19.05, the JP6 jumper of the outdoor unit PCB should be cut off. 

(5*) When the liquid piping length is more than 30m, select the liquid piping size of Ø 12.70. 

Standard specification 

(m) 

7

Piping and 


7.1.3. Selecting the refrigerant piping 

Select the piping connection sizes according to the following procedures: 

− Between outdoor unit and branch piping: 

Select the same piping connection size as the piping size of the outdoor unit. 

− Between branch piping and indoor unit: 

Select the same piping connection size as the piping size of the indoor unit. 

Piping connection size of outdoor units and Multikit & Distributor 

Outdoor unit 

174 

TCGB0052-rev.1-07/2009 

Pipe size Multikit & Distributor 

Liquid piping Gas piping Twin Triple Quad 

RAS-3HVRNS 9.53 15.88 TE-03N - - 

RAS-4HVRNSE 9.53 15.88 TE-04N - - 

RAS-5HVRNSE 9.53 15.88 TE-56N - - 

RAS-6HVRNSE 9.53 15.88 TE-56N TRE-06N - 

RAS-8HRNSE 9.53 25.4 TE-08N TRE-810N TE-08N + TE-04N + TE-04N 

RAS-10HRNSE 9.53 25.4 TE-08N - TE-08N + TE-56N + TE-56N 

NOTE: 

The sizes of the indoor and outdoor units are different. Adjust the flare adapter (accessories) to the joint part of the 

indoor piping. 

Piping connection size of indoor units 

Indoor unit Gas piping size Liquid piping size 

1.5 HP 12.7 6.35 

2 HP 15.88 6.35 

2.5~6 HP 15.88 9.53 

8 HP* 19.05 25.4 (1*) 9.53 

10 HP* 22.2 25.4 (1*) 9.53 (2*) 

NOTE: 

If using different piping from the standard values, piping reducers will be supplied by the installer. 

(*1) Ø19.05 Ø25.4 and Ø22.2 Ø25.4 indoor pipe adapters are factory supplied with the indoor unit. 

(*2) Change the liquid piping size to Ø12.7 when the piping length is more than 30m. Indoor unit pipe adapter si factory 

suppliedwith he indoor unit. 

(mm) 

(mm)

Piping and 


7.2. Multikits and distributors 

TE-03N 

TE-04N 

TE-56N 

TE-08N 

7.2.1. Multikits for twin installation 

175 

GAS PIPING LIQUID PIPING 

TCGB0052-rev.1-07/2009 

(mm) 

7

TRE-06N 

TRE-810N 

Piping and 


¡ 

Distributors for triple installation 

176 

GAS PIPING LIQUID PIPING 

TCGB0052-rev.1-07/2009 

(mm)

Piping and 


NOTE: 

If using different piping 

from the standard 

values,piping reducers 

will be supplied by the 

installer. 

177 

7.2.3. Distribution method 

In the installation of a multiple system, the following aspects must be taken into 

account: 

Height difference between indoor units and distributor. 

Install all indoor units at the same height. When a height difference is unavoidable 

between the indoor units due to the construction of the building, it should always be 

less than 0.5 meters. 

Install the branch piping at the same height or lower than the indoor units, but never 

higher. 

Example: Twin system 

TCGB0052-rev.1-07/2009 

Indoor unit 

Installing distributor 

Indoor unit 

Height Difference between two 

indoors smaller than 0.5 m. 

Smaller than 0.5 m. 

Branch pipe 

1. Install the distributor supplied on request by HITACHI. 

A T-junction cannot be installed in place of a branch pipe. 


2. Installing the distributor. 

Fix the branch pipe horizontally to the pillar, wall or ceiling. The piping must not 

be fixed rigidly to the wall as thermal expansion and contraction can cause pipe 

fracture. 


To indoor 

unit 

Horizontal 

To outdoor unit 

To indoor 

unit 

Vertical 

Horizontal 

Fixing branch pipe to 

surface of pillar or wall. 

Fixing branch pipe to 

ceiling or beam 

Horizontal 

7

Piping and 


CAUTION: 

Do not use saws, 

grindstones or other 

tools which might create 

copper dust. 

When cutting pipes, 

secure the part to be 

soldered as shown in 

chapter 2 of the Service 

Manual (SMGB0052) 

178 

3. Distributor position. 

− 

Twin system: 

This is the correct position of the double branch pipe: 

TCGB0052-rev.1-07/2009 

Higher 

than 

0.5 m 

This is the wrong position: 

Branch 

piping 

− Triple system: 

Install the header horizontally. 

Example: Triple branch piping 

Gas piping 

Liquid piping 

Main piping 

Top 

Refrigerant 

direction 

Refrigerant direction 

Top 

Bottom 

Main piping 

Refrigerant 

direction 

Branch 

piping 

Bottom 

Branch pipe 

Main piping 

Main piping 

Branch 

piping

Piping and 


NOTE: 

If copper pipe is used 

for piping larger than 

Ø19.05, flaring work can 

not be performed. 

If necessary, use a joint 

adapter 

CAUTION: 

Do not use saws, 

grindstones or other 

tools which might 

create copper dust. 

When cutting pipes, 

secure the part for 

brazing in accordance 

to national and local 

regulations. 

Use security glasses 

and gloves for cutting 

or welding works. 

179 

7.2.3. Copper pipes and sizes 

1. Prepare locally-supplied copper pipes. 

2. Select the pipe size of a suitable thickness and material. Use the table below to 

select the required piping. 

TCGB0052-rev.1-07/2009 

Nominal diameter Thickness 

(mm) (in.) (mm) 

Copper type 

6.35 1/4 0.80 Rolled 

9.53 3/8 0.80 Rolled 

12.7 1/2 0.80 Rolled 

15.88 5/8 1.00 Rolled 

19.05 3/4 1.00 Piping 

22.2 7/8 1.00 Piping 

25.4 1 1.00 Piping 

28.6 1-1/8 1.00 Piping 

3. Use clean copper pipes. Make sure there is no dust and moisture inside. Blow 

the inside of the pipes through with oxygen-free nitrogen to remove any dust 

and foreign materials before connecting pipes. 

4. After connecting the refrigerant piping, seal the open space between the knockout 

hole and refrigerant pipes by using insulation material as shown below: 

Insulator 

Insulator 

Field-supplied 

Refrigeration pipe 

Insulator 

7

NOTE: 

Piping and 


- A system with no moisture 

or oil contamination will give 

maximum performance and 

life-cycle as compared with a 

poorly prepared system. Take 

particular care to ensure that 

all copper piping is clean and 

dry internally. 

- To ensure this, blow oxygenfree 

nitrogen through the 

pipes. 

CAUTION: 

- Cap the end of the pipe when 

the pipe is to be inserted 

through a hole. 

- Do not place pipes directly 

on the ground without a cap 

or vinyl tape covering the 

end, as it’s shown in the right 

figures. 

- If piping installation cannot be 

completed until the following 

day or longer. solder the ends 

of the piping closed and load 

with oxygen-free nitrogen 

using an access device such 

as a Schrader valve to avoid 

moisture and contamination 

by extraneous particles. 

- Do not use insulation material 

that contents NH3 because 

can damage cooper pipe 

material and can be a source 

of future leakage. 

NOTE: 

When polyethylene foam is 

applied. a thickness of 10mm 

for the liquid piping and 15mm 

to 20mm for the gas piping is 

recommended. 

CAUTION: 

Perform insulation work when 

the surface temperature 

reaches the room 

temperature. Otherwise it is 

possible that the insulation 

will melt. 

If the ends of the piping 

system are open after 

accomplishing piping work. 

securely attach caps or vinyl 

bags to the ends of the piping. 

avoiding the invasion of 

moisture and dust. 

180 

¡ 

¡ 

Piping connections 

Fix the connecting pipe as shown in the following figure. Use the insulation 

attached to the indoor unit. 

Indoor 

unit 

TCGB0052-rev.1-07/2009 

Use the flare nut of 

the indoor unit 

Insulate this 

part with the 

insulation 

material 

supplied 

Insulation attached 

Brazing 

to indoor unit Make flares after 

attaching flare nut to 

the connecting pipe in 

the multi-kit package 

Insulation 

Fix this part with the 

bracket supplied or 

with tape 

Refrigerant 

piping in the 

installation 

Field-supplied 

insulation 

Right Wrong 

Attach insulation packet with multi-kit to each branch utilizing vinyl tape. Also 

attach insulation to field-supplied piping to prevent capacity decrease due to 

ambient air conditions and dewing on pipe surface caused by low pressure.

CAUTION: 

Piping and 


When loading refrigerant, 

measure the amount 

precisely. 

Overloading or underloading 

of refrigerant may cause 

compressor problems. 

If the actual piping length is 

less than 5 m. consult your 

dealer. 

NOTE: 

Step 1: 

(*) In the case of 

RAS-3/4HVRNS(E) units, 

the formula for calculating 

refrigerant: 

W=(L-20)XP 

181 

7.3. Amount refrigerant charge 

7.3.1. Additional refrigerant charge calculation (R410A) 

− 

− 

¡ 

Although refrigerant has been charged into this unit, additional refrigerant charge is 

required according to piping length. 

The additional refrigerant quantity should be determined and charged into the 

system according to the following procedure. 

Record the additional refrigerant quantity in order to facilitate maintenance and 

servicing activities. 

TCGB0052-rev.1-07/2009 

Single type 

Twin and triple type 

Quad type 

Piping Length: L=A 

Piping Length: L=A+B+C+D 

The above figure shows case of triple type 

Piping Length: L=A+B+C+D+E+F+G 

Calculating method of additional refrigerant charge (W kg) 

Calculate the additional refrigerant charge amount according to the following steps: 

Additional refrigerant charge calculation for liquid piping (W (kg)) 1 

Outdoor units has been charged with refrigerant for 30 m of actual piping length. 

An additional refrigerant charged is required in systems with actual piping length 

longer than 30 m. 

W 1 = (L-30) ( * ) x P 

L: Total piping length (m) 

P: Corresponding rate (Refer to the following table) 

Outdoor unit 

Corresponding rate (P) 

(kg/m 3 ) 

RAS-(2/2.5/3)HVRN(S)(1) 0,03 


RAS-(5/6)HVRNSE 0,06 

RAS-8HRNSE 0,065 

RAS-10HRNSE 0,12 

7

Piping and 


NOTE: 

Step 2: 

Step 3: 

When the additional 

refrigerant charge is over 

the maximum additional 


allowed by the unit, it’s 

necessary to adjust 

the piping length of the 

installation. 

Step 1: 

Step 2: 

182 

Charging work 

Charge refrigerant (R410A) into the system according to the instructions described 

in the “SMGB0052_rev1”. 

Record of additional charge 

The total refrigerant charge of this system is calculated with the following formula: 

TCGB0052-rev.1-07/2009 

Total refrigerant charge: W TOT = W 0 + W 1 

This system = + = kg 

W 0 is the outdoor unit refrigerant charge before shipment, and it’s shown in the 

following table: 

Outdoor unit 

W 0 outdoor unit 


(kg) 



Record the refrigerant charge quantity in order to facilitate maintenance and 

servicing activities. 

Total additional charge W kg 

Total ref. charge of this system 

kg 

Date of ref. charge work 

Year Month Day 

7.3.2. Simple example of refrigerant charge quantity calculation 

Calculate the additional refrigerant charge amount according to the following 

example: 

(Calculation example) 

RAS-10HRNSE 

Additional refrigerant charge calculation for liquid piping (W 1 (kg)) 

Piping Length L = A+B+C = 30+8+10 = 48m 

W 1 (Additional ref. amount) = (L-30) x P = (48-30) x 0.12 = 2.16 kg 

Calculation of total refrigerant charge (W TOT (kg)) 

W TOT = W 1 + W 0 = 2.16 + 6.2 = 8.36 kg

Piping and 


7.4. Caution in case of refrigerant leakage 

The installers and those responsible for drafting the specifications are obliged to comply with local safety codes and 

regulations in the case of refrigerant leakage. 

7.4.1. Maximum permitted concentration of HFCs 

The refrigerant R410A, charged in the UTOPIA DC-INVERTER ES series system, is an incombustible and 

non-toxic gas. However, if leakage occurs and gas fills a room, it may cause suffocation. 

The maximum permissible concentration of HFC gas, R410A in air is 0.44 kg/m³, according to EN378-1. 

Therefore, some effective measure must be taken to lower the R410A concentration in air below 0.44 kg/ m³, 

in case of leakage. 

7.4.2. Calculation of refrigerant concentration 

¡ 

1. Calculate the total quantity of refrigerant R (kg) charged in the system by connecting all the indoor units 

in the rooms to be air-conditioned. 

2. Calculate the room volume V (m³) of each room. 

3. Calculate the refrigerant concentration C (kg/m³) of the room according to the following equation: 

183 

R 

— = C 

V 

Example of application 

R: Total quantity of refrigerant charged (kg) 

V: Room volume (m³) 

C: Refrigerant concentration (=0.44* kg/m³ for R410A) 

Floor 

20 m 2 

Ventilator fan 2 m 3 /min 

System A outdoor unit 

System A 

Refrigerant: 12 Kg 

Floor 

40 m 2 

Floor 

40 m 2 

Gas leak detector 

TCGB0052-rev.1-07/2009 

System B 

Refrigerant: 10 Kg 

Floor 

200 m 2 

Opening: 

0.06 m 2 

System B outdoor unit 

Floor 

60 m 2 

Room R (kg) V (m³) C (kg/m³) Countermeasure 

A 12 50 0,24 - 

B+C 12 200 0,06 - 

D 22 500 0,044 - 

E 10 150 0,067 - 

Height 

2.5 m 

7

Piping and 


7.4.3. Countermeasure for refrigerant leakage 

The facility must have the following features in case of a refrigerant leakage occurs: 

1. Provide a shutterless opening which will allow fresh air to circulate into the room. 

2. Provide a doorless opening of 0.15% or more size to the floor area. 

3. There must be a ventilator fan connected to a gas leak detector, with a ventilator capacity of 0.4 m³/ 

min or higher per Japanese refrigeration ton (= compressor displacement volume / 5.7 m³/h) of the air 

conditioning system using the refrigerant. 

184 

TCGB0052-rev.1-07/2009 

Model Tonnes 

RAS-2/2.5HVRN1 0.88 

RAS-3HVRNS 1.14 


RAS-(5/6)HVRNSE 2.27 

RAS-(8/10)HRNSE 4.11 

4. Pay a special attention to the place, such as a basement, etc., where refrigerant can stay, since refrigerant 

is heavier than air.

Electrical data 

185 

TCGB0052-rev.1-07/2009 

8. Electrical data 

This chapter describes the electrical requirements for each unit of the new UTOPIA DC INVERTER ES series. 

Contents 

8. Electrical Data .......................................................................................................185 

8.1. Indoor units ......................................................................................................................................... 186 

8.2. Outdoor units ...................................................................................................................................... 187 

8.2.1. RAS-(2~3)HVRN1/HVRNS ........................................................................................................................... 187 

8.2.2. RAS-(4~6)HVRN(S)E .................................................................................................................................... 187 

8.2.3. RAS-(8/10)HRNSE ........................................................................................................................................ 188 

8.3. Complementary system – KPI ............................................................................................................... 189 

8

Electrical data. 

8.1. Indoor units 

4-way cassette 

type 

2-way cassette 

type 

Model 

186 

U 

[V] 

Main unit power 

PH 

TCGB0052-rev.1-07/2009 

f 

[Hz] 

Applicable 

voltage 

U max. U min 

[V] [V] 

IPT 

[kW] 

RNC 

[A] 

Fan motor 

Max. IPT 

[kW] 

Max. Cur. 

[A] 

RCIM-1.5FSN2 220/240 

253 207 0.07 0.4 0.08 5.0 

1 50 

RCIM-2.0FSN2 220/240 253 207 0.07 0.4 0.08 5.0 

RCI-1.5FSN2E 230 

253 207 0.05 0.2 0.05 5.0 

RCI-2.0FSN2E 230 253 207 0.05 0.2 0.05 5.0 

RCI-2.5FSN2E 230 253 207 0.06 0.3 0.06 5.0 

RCI-3.0FSN2E 230 1 50 253 207 0.09 0.4 0.09 5.0 

RCI-4.0FSN2E 230 253 207 0.11 0.7 0.11 5.0 

RCI-5.0FSN2E 230 253 207 0.14 0.8 0.14 5.0 

RCI-6.0FSN2E 230 253 207 0.18 1.0 0.18 5.0 

RCD-1.5FSN2 220/240 

253 207 0.08-0.07 0.3-0.4 0.10 5.0 

RCD-2.0FSN2 220/240 253 207 0.08-0.07 0.3-0.4 0.10 5.0 

RCD-2.5FSN2 220/240 253 207 0.09-0.11 0.4-0.5 0.13 5.0 

1 50 

RCD-3.0FSN2 220/240 253 207 0.11-0.13 0.5-0.6 0.15 5.0 

RCD-4.0FSN2 220/240 253 207 0.12-0.14 0.6 0.17 5.0 

RCD-5.0FSN2 220/240 253 207 0.18-0.20 0.8-0.9 0.24 5.0 

Ceiling type RPC-2.0FSN2E 230 

253 207 0.13 0.5 0.18 5.0 

RPC-2.5FSN2E 230 253 207 0.13 0.6 0.18 5.0 

RPC-3.0FSN2E 230 253 207 0.17 0.8 0.23 5.0 

1 50 

RPC-4.0FSN2E 230 253 207 0.18 0.8 0.24 5.0 

RPC-5.0FSN2E 230 253 207 0.23 1.1 0.31 5.0 

RPC-6.0FSN2E 230 253 207 0.23 1.1 0.31 5.0 

Duct type RPIM-1.5FSN2E 230 1 50 253 207 0.09 0.3 0.09 5.0 

RPI-1.5FSN2E 230 

253 207 0.07 0.4 0.09 5.0 

RPI-2.0FSN2E 230 253 207 0.13 0.6 0.17 5.0 

RPI-2.5FSN2E 230 253 207 0.14 0.6 0.19 5.0 

RPI-3.0FSN2E 230 1 50 253 207 0.20 0.9 0.30 5.0 

RPI-4.0FSN2E 230 253 207 0.28 1.4 0.37 5.0 

RPI-5.0FSN2E 230 253 207 0.30 1.5 0.37 5.0 

RPI-6.0FSN2E 230 253 207 0.33 1.7 0.45 5.0 

RPI-8.0FSN2E 230 

253 207 0.97 4.5 1.75 10.0 

1 50 

RPI-10.0FSN2E 230 253 207 1.06 4.8 1.91 10.0 

Wall type RPK-1.5FSN2M 220/240 

Floor type 

Floor-concealed 

type 

U: Power voltage 

PH: Phase (φ) 

f: Frequency 

IPT: Total input power 

RNC: Running current 

Cur: Current 

253 207 0.03 0.3 0.04 5.0 

RPK-2.0FSN2M 220/240 253 207 0.03 0.3 0.04 5.0 

RPK-2.5FSN2M 220/240 1 50 253 207 0.04 0.3 0.05 5.0 

RPK-3.0FSN2M 220/240 253 207 0.04 0.3 0.05 5.0 

RPK-4.0FSN2M 220/240 253 207 0.06 0.5 0.09 5.0 

RPF-1.5FSN2E 230 

253 207 0.05 0.2 0.07 5.0 

RPF-2.0FSN2E 230 1 50 253 207 0.09 0.4 0.12 5.0 

RPF-2.5FSN2E 230 253 207 0.09 0.4 0.12 5.0 

RPFI-1.5FSN2E 230 

253 207 0.05 0.2 0.07 5.0 

RPFI-2.0FSN2E 230 1 50 253 207 0.09 0.4 0.12 5.0 

RPFI-2.5FSN2E 230 253 207 0.09 0.4 0.12 5.0 

NOTE 

The specifications in these tables are subject to 

change without notice to allow HITACHI to offer 

its customers the latest innovations.


8.2. Outdoor units 

8.2.1. RAS-(2~3)HVRN1/HVRNS 

Model 


U 

[V] 

187 

PH 

f 

[Hz] 

Applicable 

voltage 

U max. 

[V] 

U min 

[V] 

TCGB0052-rev.1-07/2009 

PH 

STC 

[A] 

Compressor and Fan motors 

Operation with 

cooling 


heating 

Max. IPT 

[kW] 

RAS-2HVRN1 220/240 1 50 264 198 1 - 1,21 5,5-5,1 1,13 5,2-4,7 2,80 13,0 

RAS-2.5HVRN1 220/240 1 50 264 198 1 - 1,77 8,1-7,4 1,78 8,1-7,4 3,45 16,0 

RAS-3HVRNS 220/240 1 50 264 198 1 - 2,23 10,3-9,4 2,34 10,8-9,9 3,92 18,0 

8.2.2. RAS-(4~6)HVRN(S)E 

Model 


U 

[V] 

PH 

f 

[Hz] 

Applicable 

voltage 

U max. 

[V] 

U min 

[V] 

PH 

STC 

[A] 

IPT 

[KW] 

RNC 

[A] 

IPT 

[KW] 



cooling 

RNC 

[A] 


heating 

Max. IPT 

[kW] 

RAS-4HVRNSE 230 1 50 253 207 1 - 3,21 14,2 3,11 13,8 5,48 24,0 

RAS-5HVRNSE 230 1 50 253 207 1 - 3,74 16,6 3,97 17,6 5,86 26,0 

RAS-6HVRNSE 230 1 50 253 207 1 - 4,80 21,3 4,70 20,9 5,86 26,0 



f: Frequency 

STC: Starting current. Less than maximum current 



Cur: Current 

IPT 

[KW] 

NOTES 

RNC 

[A] 

IPT 

[KW] 

RNC 

[A] 

Max. Cur. 

[A] 

Max. Cur. 

[A] 

1. The compressor data shown in the table above are based on a 

combined capacity of 100% of the power supplied, with the following 

working frequency: 

Cool Heat 

RAS-4HVRNSE 60 69 



2 The above performance data is based on an equivalent piping length 

of 7.5 m and 0 m piping lift. 

3. This data is based on the same conditions of nominal heating and 

cooling capacities. 

The compressor with inverter control has low electrical power 

consumption at start-up. 

8

Electrical data. 

8.2.3. RAS-(8/10)HRNSE 

Model 


U 

[V] 

188 

PH 

f 

[Hz] 

Applicable 

voltage 

U max. 

[V] 

U min 

[V] 

TCGB0052-rev.1-07/2009 

PH 

STC 

[A] 



cooling 


heating 

Max. IPT 

[kW] 

RAS-8HRNSE 400 3 50 440 360 3 - 6.39 9.5 6.10 9.1 12.9 20.0 

RAS-10HRNSE 400 3 50 440 360 3 - 8.58 12.8 8.39 12.5 14.8 23.0 



f: Frequency 

STC: Starting current. Less than maximum current 



Cur: Current 

IPT 

[KW] 

NOTES 

RNC 

[A] 

IPT 

[KW] 

RNC 

[A] 

1. The compressor data shown in the table above are based on 

a combined capacity of 100% of the power supplied, with the 

following working frequency: 

Cool Heat 

RAS-8HRNSE 49 56 

RAS-10HRNSE 62 69 

2 The above performance data is based on an equivalent piping 

length of 7.5 m and 0 m piping lift. 

Max. Cur. 

[A] 

3. This data is based on the same conditions of nominal heating and 

cooling capacities. 

The compressor with inverter control has low electrical power 

consumption at start-up.


8.3. Complementary system – KPI 

Model 

189 

Main unit power Applicable voltage Fan motor 

U (V) PH f (Hz) 

TCGB0052-rev.1-07/2009 

U max. 

[V] 

U min 

[V] 

IPT 

[kW] 

RNC 

[A] 

Max. IPT 

[kW] 

KPI-502E1E 230 1 50 253 207 0.22 0.9 0.23 4.0 

KPI-802E1E 230 1 50 253 207 0.37 1.6 0.40 4.0 

KPI-1002E1E 230 1 50 253 207 0.58 2.7 0.62 8.0 

KPI-1502E1E 230 1 50 253 207 0.79 3.6 0.88 8.0 

KPI-2002E1E 230 1 50 253 207 0.89 4.0 0.91 8.0 

Max. Cur. 

[A] 

KPI-3002H1E 230 1 50 253 207 1.45 6.0 1.45 12.0 



f: Frequency 



Cur: Current 

NOTE 

The specifications in these tables are subject to change without notice to allow 

HITACHI to offer its customers the latest innovations. 

8

Electrical wiring 

191 

TCGB0052-rev.1-07/2009 

9. Electrical wiring 

This chapter describes the electrical wiring connections and how to set the DIP switches and the H-LINK II System of the 

new UTOPIA DC INVERTER ES series. 

Contents 

9. Electrical Wiring .................................................................................191 

9.1. General verification.....................................................................................................192 

9.2. Setting and function of DIP switches for outdoor units ...............................................193 

9.2.1. RAS-(2~3)HVRN1/HVRNS(1)(S) .......................................................................................193 

9.2.2. RAS-4~10H(V)RNSE .........................................................................................................194 

9.3. Setting and function of DIP switches for indoor units .................................................196 

9.3.1. Indoor units ........................................................................................................................196 

9.4. Setting of DIP switches for complementary systems and accessories .......................198 

9.4.1. Complementary systems ....................................................................................................198 

9.5. Common wiring ...........................................................................................................199 

9.5.1. Electrical wiring between indoor and outdoor units ............................................................199 

9.6. Wiring size ..................................................................................................................200 

9.7. H-LINK II .....................................................................................................................201 

9.7.1. Application ..........................................................................................................................201 

9.7.2. Features .............................................................................................................................201 

9.7.3. Specifications .....................................................................................................................201 

9.7.4. Setting DIP switches for single, double and triple systems ................................................202 

9.7.5. Examples of the system of connection between H-LINK and H-LINK II units ....................203 

9.7.6. Examples of H-LINK system: .............................................................................................204 

9.8. PSC-5HR ....................................................................................................................206 

9.8.1. Example of a system with PSC-5HR ..................................................................................206 

9.8.2. Internal layout of the components. .....................................................................................206 

9


192 

9.1. General verification 

WARNING: 

– Turn OFF the main power switch on the indoor and outdoor units before carrying out 

electrical wiring or regular checks. 

– Check to ensure that the indoor and outdoor fans have stopped before carrying out 

electrical wiring or regular checks. 

– Protect wires, drainpipe, electrical parts, etc. from rats or other small animals. If all these 

parts are not protected, rats or other small animals may gnaw them and possibly cause a 

fire. 

– Make sure the wires are not touching the refrigerant pipes, plate edges and electrical 

parts inside the unit. Otherwise the wires will be damaged and may cause a fire. 

CAUTION: 

Secure the wires firmly with the clamp to the inside of the indoor unit. 

NOTE: 

Fix the rubber bushes with adhesive when the outdoor unit ducts are not used. 

1. Make sure that the field-supplied electrical components (main power switches, 

circuit breakers, wires, duct connectors and wire terminals) have been properly 

selected according to the electrical data given in this technical catalog. Make sure 

that the components comply with the National Electrical Code (NEC) 

2. Check to ensure that the power supply voltage is within ± 10% of the rated 

voltage. 

3. Check the capacity of the electrical wires. If the power supply capacity is too low, 

the system cannot be started due to the voltage drop. 

4. Check to ensure that the earth wire is connected. 

5. Main power supply switch 

Install a multi-pole switch with a space of 3.5 mm or more between each phase. 

TCGB0052-rev.1-07/2009


NOTE: 

The “■” mark indicates the 

position of the dip switches. 

The figures show the settings 

before shipment or after 

selection. 

CAUTION 

Before setting dip switches, 

first turn off the power 

supply. If the switches are 

set without turning off the 

power source, the settings 

are invalid. 

193 

9.2. Setting and function of DIP switches for outdoor units 

9.2.1. RAS-(2~3)HVRN1/HVRNS(1)(S) 

TCGB0052-rev.1-07/2009 

Number and position of DIP switches. 

The PCB in the outdoor unit is operated with 7 types of DIP switches and 4 types of 

push switch. The location is as follows: 

DSW301: Test run 

Factory setting is all OFF 

Before shipment 

DSW1: (No setting is required). 


DSW2: Piping length 


(6m~30m) 

1 2 3 4 5 6 

1 2 3 4 5 6 

9

NOTE: 





before 

shipment or after selection. 

CAUTION 






are invalid. 

194 

DSW3: Capacity set 

No setting is required. Each outdoor unit is set before shipment as shown in chapter 

3 of the Service Manual SMGB0052. 

DSW4 and RSW1: Setting number of refrigerant cycles. 

TCGB0052-rev.1-07/2009 

Setting for the tenth digit 

Setting for the last digit 

DSW5: Setting end-terminal resistance 

No setting is required. However so that the impedance corresponds, set the DSW5 

according to the number of outside units of the H-link system. 

End terminal resistance activated 

DSW6: Setting function (No setting is required) 

Setting before shipment 

9.2.2. RAS-4~10H(V)RNSE 


The PCB in the outdoor unit operates with 6 types of DIP switches and 

3 types of push switch. 

Position of DIP switches: 

0


NOTE: 




before shipment or after 

selection. 

CAUTION 






are invalid. 

195 

DSW1: Test run. 

Factory setting is all OFF 


DSW2: Pipe length/ Selection of optional functions 


Setting of optional function 

selection 

TCGB0052-rev.1-07/2009 

(6m~29m) 

DSW3: Setting capacity. 

No setting is required. Each outdoor unit is set before shipment as shown in chapter 3 

of the Service Manual SMGB0052. 

DSW4 and RSW1: Setting number of refrigerant cycles. 

Setting for the ten digit 

Setting for the last digit 

DSW5: Setting end-terminal resistance 

No setting is required. However so that the impedance corresponds, set the DSW5 

according to the number of outside units of the H-link system. 

End terminal resistance activated 

DSW6: Power source setting 

No setting is required. 


RAS-(4~6)HVRNSE 



JP4 cut: Fixing cooling mode 

JP5 cut: Alternative defrost mode 

JP6 cut: High-pressure control based on R407C piping 

0 

9


NOTE: 

The “■” mark indicates the position 

of the dip switches. The figures 

show the settings before 


CAUTION: 

Before setting dip switches, first 

turn off the power supply. If the 

switches are set without turning off 

the power supply, the settings are 

invalid. 

196 

9.3. Setting and function of DIP switches for indoor units 


The PCB in the indoor unit operates with 5 types of DIP switches, and two rotary 

switches. 

9.3.1. Indoor units 

DSW6 and RSW1: Setting unit number. 

Setting is required. Set the unit no. of all indoor units respectively and serially, by following 

setting position shown in chapter 3 of Service Manual SMGB0052. Numbers must start from 

"0" for every outdoor unit. 


with a value of up to 63. 

Setting example no. 16 

TCGB0052-rev.1-07/2009 

DSW6 RSW1 

DSW6 RSW1 

Pin no. 1 is set to ON 

Set at 6 

DSW2: Setting optional functions. (RPK-FSN2M only) 

No setting is required. This switch is used for setting the optional functions as indicated in 

chapter 3 of Service Manual SMGB0052. 


Identification of indoor unit 

Setting position 

Set by inserting screwdriver 

into the groove 

DSW3: Setting capacity code. 

No setting is required as this is done before shipment. This DIP switch is used for setting 

the capacity code corresponding to the power of the indoor unit as indicated in chapter 3 of 

Service Manual SMGB0052. 

DSW4: Setting unit model code. (not available for RCI, RCIM and RPK) 

No setting is required. This switch is used for setting the model code corresponding to the 

indoor unit type as indicated in chapter 3 of Service Manual SMGB0052.


NOTE: 

The “■” mark indicates the position 

of the dip switches. The figures 

show the settings before 


CAUTION: 

Before setting dip switches, first 

turn off the power supply. If the 

switches are set without turning off 

the power supply, the settings are 

invalid. 

197 

DSW5 and RSW2: Setting refrigerant cycle number. 

Setting is required. Factory setting is all OFF 

Setting of DSW5 and RSW2 

before shipment with a 

value of up to 63. 

Example of system setting 5. 

TCGB0052-rev.1-07/2009 

DSW5 RSW2 

DSW5 RSW1 

All pins are OFF 

DSW7: Fuse recover/ Remote Control Selector 

Set at 5 

No setting is required as this is done before shipment. Setting position before shipment is 

all OFF. 

If a high voltage is applied to terminals 1 and 2 of TB1, 

the fuse (0.5) on PCB1(M) is cut. If this happens, first 

correct the wiring to TB2 and then turn on no. 1 (as 

shown to the right) 

In the RPK-FSN2M units the setting of the DIP switches is as follows: 

RPK-(1.0/1.5)FSN2M DSW7 

No setting is required. Setting position before shipment 

is all OFF. 

If a high voltage is applied to the terminal 1 and 2 of 

TB1, the fuse on the PCB1(M) is cut. 

If this happens, first correct the wiring to TB1 and then 

turn it on (as shown at right). 

RPK-(2.0~4.0)FSN2M DSW7 

No setting is required. Setting position before shipment 

is all OFF. 

If a high voltage is applied to the terminal 1 and 2 of 

TB1, the fuse on the PCB1(M) is cut. 

If this happens, first correct the wiring to TB1 and then 

turn on no. 1 (as shown at right). 

9


198 

DSW8: Not used (RCI only) 


DSW8: Not used (RCIM only) 


SSW: Not used 

9.4. Setting of DIP switches for complementary systems and accessories 

9.4.1. Complementary systems 

System: Energy recovery ventilation units - KPI 

DSW3: 


DWS5: 


DSW6: 


Remote control system 

DSW7: 


SSW: 


System: Econofresh Kit - EF 

This requires using the DIP switches of the PCB of the RPI indoor units. 

RPI-5.0FSN(1)E DSW6 

RPI-5.0FSN2E DSW4 

TCGB0052-rev.1-07/2009 

RPI-5HP 

Dip Switch 

Factory Setting 

RPI-5HP+ 

Econo-Fresh Kit 

installation Dip Switch Setting


9.5. Common wiring 

9.5.1. Electrical wiring between indoor and outdoor units 

Terminal board 

Circuit Breaker 

Earthleakage Breaker 

Field Wiring 

Field supplied 

Optional Accessory 

− Connect the electrical wires between the indoor unit and the outdoor unit as shown below. 

− When installing the electrical wiring, follow local codes and regulations. 

− The refrigerant piping and the control wiring are connected to the units in the same refrigerant cycle. 

2 

− Use twist pair wire (more than 0.75 mm ) for operation wiring between the outdoor unit and indoor unit, and 

operation wiring between indoor unit and indoor unit. 

− Use a 2-core wire for the operating line (do not use wire with more than 3 cores). 

− Use shielded wires for intermediate wiring to protect the units from noise interference at lengths of less than 

300 m. The size must comply with local codes. 

− Open a hole near the connection hole of power source wiring when multiple outdoor units are connected 

from a single power source line. 

− The recommended circuit-breaker and wire sizes are shown in the next tables of electrical data. (And 

recommended wiring and breaker sizes / 1 O.U.) 

− If a duct for field-supplied wiring is not used, fix rubber bushes with adhesive on the panel. 

− All field wiring and equipment must comply with local and international codes. 

WARNING: 

Pay attention to the connection of the operating line. Incorrect connection may cause failure of the PCB. 

No. 0 System 

Outdoor unit 

199 

Operating Line (Twisted 

Shielded Pair Cable or Shielded 

Pair Cable) 

DC5V (Non-Pole Transmission) 

Remote 

Control 

Switch 

TCGB0052-rev.1-07/2009 

No. 0 System 

Outdoor unit 

Indoor Unit Indoor Unit Indoor Unit Indoor Unit 

Max. 3 Units per Refrigerant Cycle Max. 3 Units per Refrigerant Cycle 

Operating Line (Twisted 

Shielded Pair Cable or Shielded 

Pair Cable) 

DC5V (Non-Pole Transmission) 

Remote 

Control 

Switch 

9


9.6. Wiring size 

¡ 

¡ 

Connection wiring 

The minimum thickness of the wiring that must be used in the installation. 

Indoor units 

200 

Model Power supply 

TCGB0052-rev.1-07/2009 

Maximum 

current 

(A) 

Indoor units 2.0~6.0HP 

5 0.75 mm² 0.50 mm 

1~220/240V 50Hz 

2 

Indoor units 8.0~10.0HP 10 1.5 mm² 0.75 mm2 Outdoor units 

RAS-2HVRN1 


Maximum 

current 

(A) 

RAS-2.5HVRN1 1~220/240V 50Hz 16 2.5 mm² 1.25 mm² 

Size of power supply cable Size of transmission cable 

EN60 335-1 MLFC EN60 335-1 MLFC 

0.75 mm² 0.50 mm² 

Size of power supply cable Size of transmission cable 

EN60 335-1 MLFC EN60 335-1 MLFC 

13 1.5 mm² 0.75 mm² 

RAS-3HVRNS 18 2.5 mm² 1.25 mm² 

RAS-4HVRNSE 

24 4.0 mm² 2 mm² 

RAS-5HVRNSE 1~230V 50Hz 26 6.0 mm² 3.5 mm² 

RAS-6HVRNSE 26 6.0 mm² 5.5 mm² 

RAS-8HRNSE 

20 6.0 mm² 3.5 mm² 

3~400V 50Hz 

RAS-10HRNSE 23 6.0 mm² 3.5 mm² 

0.75 mm² 0.5 mm² 

- The above wire sizes marked with are selected at the maximum current of the unit according to the European Standard, EN60 

335-1. 

- The above wire sizes marked with are selected at the maximum current of the unit according to the wire, MLFC (Flame 

Retardant Polyflex Wire) manufactured by HITACHI Cable Ltd. Japan. 

- If the power cables are connected in series, add together the maximum current of each unit and select the cables according to the 

following table. 

Selection according to EN60 335-1 Selection according to MLFC (at cable temp. of 60ºC) 

Current i (A) Wire size Current i (A) Wire size 

I ≤ 6 0.75 mm² I ≤ 15 0.5 

6 

10 

16 

25 

32 

40 

63 

In case that current exceeds 63 A do not connect cables in series 

Main switch protection 

Select the main switches according to the following table. 

Indoor units 

112 

Model Power supply Maximum current (A) CB (A) 

Indoor units 2.0~6.0HP 

1~230V 50Hz 

5 6 

Indoor units 8.0~10.0HP 10 10 

(*) Except RPI-8/10 

Outdoor units 


Maximum current 

(A) 

CB (A) 

RAS-2HVRN1 

13 16 

RAS-2.5HVRN1 1~220/240V 50Hz 

16 20 

RAS-3HVRNS 18 25 

RAS-4HVRNSE 

24 32 

RAS-5HVRNSE 1~230V 50Hz 

26 32 


RAS-8HRNSE 

RAS-10HRNSE 

3~400V 50Hz 

20 

23 

40 

40 

ELB 

No. of poles/A/mA 

2/40/30 

ELB 

No. of poles/A/mA 

2/40/30 

4/40/30


CAUTION: 

The H-LINK II system cannot be 

applied to the models with the 

old cycle, nor to units with an old 

transmission. 

NOTE: 

CSNET WEB is a centralized 

control system which allows 

the installation to be controlled 

remotely. It can be connected at 

any point of the local corporate 

network, or even via the 

Internet. 

CAUTION: 

For the H-LINK II system you 

must use twisted shielded pair 

cable or shielded pair cable 

201 

9.7. H-LINK II 

H-LINK II is the wiring connection system between units. 

The H-LINK II wiring system only needs: 

− 

− 

Two transmission wires connecting each indoor and outdoor unit for a total of 64 

refrigerant cycles. 

Connection wiring for all indoor and outdoor units in series. 

9.7.1. Application 

The H-LINK II system can be applied to the following models: 

9.7.2. Features 

− 

− 

− 

TCGB0052-rev.1-07/2009 

Indoor unit Outdoor unit 

RCI 

RCIM 

RCD 

RPI 

RPIM 

RPK 

RPF 

RPFI 

RPC 

System Free 

RAS-2/2.5HVRN1 

RAS-3~10H(V)RNSE 

The total wiring length is considerably reduced compared to traditional 

connections. 

Only one connection is required for the wiring between the indoor and outdoor 

units. 

Connecting the wiring of the complementary central control devices is simple. 

9.7.3. Specifications 

− Transmission cable: 2-wire. 

− Polarity of transmission cable: non-polar wire. 

− Maximum number of outdoor units that can be connected: 64 units per H-LINK II 

system. 

− Maximum number of indoor units that can be connected: 4 units per cycle and 160 

units per H-LINK II system. 

− Maximum wiring length: total 1000 m (including CSNET WEB). 

− The maximum wiring length can be increased by up to 5000 m by using up to four 

PSC-5HR units. 

(See section 9.8 of this catalog) 

− Recommended cable: shielded twisted pair cable, over 0.75 mm² (equivalent to 

KPEV-S). 

− Voltage: 5V DC. 

Example of H-LINK II connection 

Outdoor unit 

Indoor units 

A refrigerant cycle 

Transmission cables 


9


9.7.4. Setting DIP switches for single, double and triple systems 

− 

Setting DIP switches of PCB in indoor and outdoor units for H-LINK II 

The DIP switches of all the indoor and outdoor units have to be set and the impedance of the 

transmission circuit adapted. 

Example of setting the DIP switches 

Unit Name of DIP switch Mark Setting before shipment Function 

Outdoor 

unit 

Indoor 

unit 

DSW5 

Terminal resistance 

DSW4 

No. of refrigerant cycle 

(setting for 

the tenth digit) 

RSW1 

No. of refrigerant 

cycle (setting for the 

last digit) 

Outdoor units 

Indoor units 

DSW5 

No. of refrigerant cycle 

(setting for the tenth 

digit) 

RSW2 

No. of refrigerant 

cycle (setting for the 

last digit) 

DSW6 

Address of the 

indoor unit (setting 

for the tenth digit) 

RSW1 

Address of the 

indoor unit (setting 

for the tenth digit) 


202 

DSW4 

RSW1 

Terminal resistance DSW5 


Address of indoor unit 

Cycle no. 0 Cycle no. 1 Cycle no. 2 

DSW5 

RSW2 

DSW6 

RSW1 

TCGB0052-rev.1-07/2009 

DSW4 RSW1 

DSW5 RSW2 

For setting the refrigerant cycle address of the outdoor unit. 

Set the DSW4 and RSW1 to overlap the setting of other 

outdoor units in the same H-LINK system. 

To adapt the impedance of the transmission circuit, set 

DSW5 according to the number of outdoor units of the H- 

LINK system. 

For setting the refrigerant cycle address of the indoor unit. 

Set the DSW5 and RSW2 corresponding to the address of 

outdoor unit in the same refrigerant cycle. 

DSW6 RSW1 For setting indoor unit address. Set the DSW6 and RSW1 

not to overlap the setting of other indoor units in the same 

refrigerant cycle. (If not set, the automatic address function 

is perfomed.)

Outdoor unit 

Indoor unit 


9.7.5. Examples of the system of connection between H-LINK and H-LINK II units 

In the case of mixed systems with H-LINK and H-LINK II, set the H-LINK units in the first 16 positions of the system, 

as in the following example where 42 systems are connected, 16 with indoor FSN1E units and 26 with indoor FSN2E 

units. 

NOTE 

The maximum number of indoor units that an H-LINK II can control is 160. 

If you use PSC-5S and the CSNET WEB 2.0 (systems only compatible with H-LINK) bear in mind that it will only 

recognize 16 indoor and 16 outdoor units. 

203 

Either the current remote control 

switch (H-LINK) or the new one 

(H-LINK II) can be used 

TCGB0052-rev.1-07/2009 

Only the new remote control 

switch (H-LINK II) can be used 

9

WARNING: 


− The maximum number of units 

that can be connected is 64 

outdoor units and 160 indoor 

units (including Utopia and/or 

Set-Free, Mini Set-Free). 

− Do not install the wiring in a 

loop. 

− In the case that H-LINK is not 

applied when electrical wiring 

is performed as shown above, 

H-LINK is applied after the 

instrument wiring is completed. 

The DIP switches must 

therefore be set as specified 

in the section "Setting the DIP 

switches on the PCB". 

204 

9.7.6. Examples of H-LINK system: 

¡ 

Two cases: 

TCGB0052-rev.1-07/2009 

(1) Using H-LINK II system for air conditioning systems without a central control 

device (CSNET WEB or PSC-A64S). 

- Line connection with all units (including Utopia and/or Set-Free, Mini Set-Free and 

DC Inverter) 

- 

- 

Outdoor units 

Indoor units 

Line connection for each floor 

Outdoor units 

Indoor units 

Connection with one main line and with the branch lines for the units 

Outdoor units 

Indoor units 

Do not 

install 

wiring 

in a 

loop


(2) Using the H-LINK II system for air conditioning systems with a central control device (CSNET 

WEB or PSC-A64S). 

- If the central control device is applied when carrying out electrical wiring, 

the CS NET WEB can be connected at any point of the H-LINK II wiring. 

205 

CSNET WEB / PSC-A64S 

TCGB0052-rev.1-07/2009 

Outdoor units 

Indoor units 

- If the central control device is not applied when carrying out electrical wiring, 

the H-LINK wiring must be connected to all the systems. The easiest method is usually to connect the 


Indoor units 

CSNET WEB / PSC-A64S 

Outdoor units 

9


9.8. PSC-5HR 

The PSC-5HR (H-LINK relay) is an accessory that allows use of CSNET WEB when the length of the system 

wiring is over 1000 meters. 

9.8.1. Example of a system with PSC-5HR 

9.8.2. Internal layout of the components. 

NOTES: 

You can install a maximum of four H-LINK relays in one system. 

Make sure that the number of connections is the following: 

- No. of refrigerant systems: maximun 64 

- No. of indoor units: within 160 

Total length of each H-LINK divided: up to 1000m 

If H-LINK is divided into five blocks as shown in the diagram, set the end terminal resistance in each H-LINK 

relay. 

CAUTION: 

Make sure that the power source voltage is correct. 

An incorrect wiring may cause a breakdown of the PSC-5HR transformer or the units. 

In particular, DO NOT connect the power source to the terminal board for transmission. 

DO NOT install the H-LINK wires along the power supply wire or any other signal wires, etc. If you do so, the 

electrical noise may cause a malfunction. If you need to install the H-LINK wires near these wires, leave a 

distance of 15 cm or more. Or alternatively, insert the wires into a steel pipe and ground one end of the pipe. 

206 

P\\C 

H-LINK 1 

H-Link 

Relay 

H-Link 

Relay 

Central Station 

H-LINK for the unit to 

be connected 

H-LINK for the unit to 

be connected 

H-LINK 2 

H-Link 

Relay 

H-Link 4 H-Link 5 

Terminal board for 

transmission 

Terminal board for 

transmission 

\\ 

\\ 

TCGB0052-rev.1-07/2009 

Outdoor Unit 

1 

2 

Indoor Unit 

\\ 

2 

1 

\\ 

CN1 

CN2 

DSW3 

DSW1 

DSW2 

Control PCB 

H-LINK 3 

CN6 

PCN1 

CN3 

\\\\ 

\\ 

\\ 

Earth screw 

Transformer 

Ring core 

Power source 

terminal board 

Power supply

Optional functions 

available 

pag. 207 

TCGB0052-rev.1-07/2009 

10. Optional functions available 

This chapter gives a brief explanation of the optional functions available for the new UTOPIA DC INVERTER ES series. 

Contents 

10. Optional functions available ..................................................................................207 

10.1. Optional functions available for indoor units ....................................................................................... 208 

10.2. Optional functions available for outdoor units..................................................................................... 209 

10.3. Optional functions available for remote controllers............................................................................. 210 

10


available 

10.1. Optional functions available for indoor units 

The following table gives information on the optional functions available for the ES series. For more information, see 

chapter 5 of the service manual, code SMGB0052. 

Optional 

function 

Remote control ON/ 

OFF function 

Cancellation of 

commands by 

remote control after 

forced stoppage 

Setting operation 

mode to cooling or 

heating 

Control using the 

field-supplied room 

thermostat 

Control using the 

remote temperature 

sensor 

Signal capture 

Automatic operation 

when power supply 

is ON 

Function for 

restarting after 

power failure 

Optional sensor 

connection 

Available 

Not available 

Options available Indoor units 

pag. 208 

Explanation 

This function enables the 

system to be stopped and 

started remotely. This optional 

function is very useful in hotels 

and office buildings to control 

the indoor units from the 

building management system. 

This function stops the indoor 

unit and cancels the commands 

from the remote controller while 

it is activated. 


operation mode to be adjusted 

remotely. 


unit to be controlled using an 

external thermostat. This can 

reduce the problems caused by 

stratification of indoor air. 

Instead of using the inlet air 

thermistor to control the unit, 

this uses the average between 

the inlet air thermistor and the 

remote temperature sensor. 

This function provides 

information on the unit's 

operations so the necessary 

devices can be activated. 

This function retains the unit's 

settings if the power supply is 

interrupted. The unit will restart 

when power is restored. 

This function retains the unit's 

settings if the power supply is 

interrupted. The unit will restart 

when power is restored if the 

unit was ON before the power 

failure. 

This function connects an 

enthalpic sensor or a CO2 

concentration sensor. 

TCGB0052-rev.1-07/2009 

RCI 

RCIM 

RCD RPC 

RPI 

RPIM 

RPK 

RPF 

RPFI 

KPI 

ECONO- 

FRESH


available 

10.2. Optional functions available for outdoor units 

pag. 209 

TCGB0052-rev.1-07/2009 


Optional function Explanation 

Fixing the energy saving 

request function. 

Thermostatic stoppage 

order 

Low speed defrost 

adjustment. 

Low noise setting 

Night mode (low noise) 

operation 

Change of defrost 

operation conditions 

Protection against cold air 

discharge (1) 

Protection against cold air 

discharge (2) 

Wave function setting 

Indoor unit energy-saving 

temperature setting 

Piping for the R407C 

Alternation in defrost 

mode activation 

This function regulates the outdoor unit consumption to 50%, 70% or 100%. If the required power is above 

the set value, the capacity of the indoor unit will be reduced proportionally to the power consumption of the 

outdoor unit. It can even come to a thermostatic stop if necessary. This function can be configured using 

an external or internal signal, depending on the needs of the installation. 

Configuration by external signal is very useful for setting up groups of outdoor units. 

The internal signal is useful for setting up a single outdoor unit. 

When this function is activated the compressor is stopped and the indoor units are on thermo OFF. 

When this function is activated the indoor fan speed at defrost mode changes to slow instead of stopping 

the fan. 

This function decreases the sound levels of the outdoor units by reducing the maximum working frequency 

of the compressor (Cooling/Heating). 

This function reduces the sound level of the outdoor units by decreasing the maximum working frequency 

of the compressor and the fan airflow according to the outside temperature (only for cooling mode). 

This function changes the defrosting operation conditions. It is especially useful in cold areas. 

When the air discharge temperature of the indoor unit is less than or equal to 10 ºC in cooling mode, 

the fans stop and the frequency of the outdoor unit is reduced, thereby preventing any discomfort to the 

occupants of the room. 

When the discharge temperature of the air in the indoor unit is less than or equal to 10 ºC in cooling mode, 

the compressor stops and alarm no. 24 appears. 

This function controls the outdoor unit consumption in the following way: 

It allows a consumption of 100% for 20 minutes. The following 10 minutes it goes down to 70% and then 

alternates between 100% and 70%. 

This function reduces the power consumption of the indoor unit according to the temperature. 

If you use conventional R407C piping instead of the R410A, the piping pressure will increase. This function 

is activated in order to avoid this pressure increase. 

This function is useful in an installation consisting of various outdoor units placed in the same H-LINK. The 

defrost mode is activated alternately in each outdoor unit. 

Fixing the cooling mode This function sets the cooling mode: the indoor unit will only start when the system is on COOL or DRY. 

Fixing the heating mode 

Signal capture 

This function sets the heating mode: the indoor unit will only start when the system is on HEAT or DRY/ 

FAN. 

This function provides information on the units operation, (operation, alarm, compressor ON, defrosting 

signals) so the necessary devices can be activated. 

10


available 

pag. 210 

Optional functions for operation with CSNET WEB 

Optional function Explanation 

Historical data 

Power consumption 

Automatic COOL/HEAT 

operation 

Setting the operation mode 

Setting set temperature 

Setting air volume 

Available 

Not available 

CSNET WEB generates a file with this information so the data can be consulted. 

This function changes automatically from Cool to Heat operation. 

?This function eliminates the possibility of changing the operation mode from the 

remote controller. 

This function eliminates the possibility of changing the set temperature from the 


This function eliminates the possibility of changing the fan speed from the remote 

controller. 

10.3. Optional functions available for remote controllers 

Item Optional functions Contents Setting condition Description 

 

2 

 

Removal of heating temperature 

calibration 

Circulation function with heating 

thermo OFF 

Enforced 3-minute minimum 

compressor operation time 

Change of filter cleaning times 

Fixing operation mode 

Fixing the set temperature 

 

 

Fixing operation as an exclusive 

cooling unit 


operation 

Fixing the air volume 

TCGB0052-rev.1-07/2009 

00 Not available This function is used to eliminate the 4 ºC 

01 Available 

temperature shift. 

02 Available 

This function is used to eliminate the 2 ºC 

temperature shift. 

00 Not available This function is used to prevent 

01 Available 

stratification of air. 

00 

01 

Not available 

Available 

This function is used to protect the 

compressor when it is started and stopped 

frequently 

00 Standard 

01 100 hours 

02 1200 hours 

03 2500 hours 

04 No indication 

Using this function it is possible to alter the 

time the remote controller indicates that the 

air filter needs to be changed. 

00 Not available This function eliminates the possibility of 

changing the operation mode. 

01 Available 


changing the set temperature. 

01 Available 

00 Not available 

01 Available 

This function eliminates the heating mode. 

00 Not available This function changes automatically from 

Cool to Heat operation. 

01 Available 


changing the fan speed. 

01 Available 

A Not prepared “- -” Set Not used - 

00 Standard This function is used to lower the set 

 

Compensation of cooling 

temperature 

01 

02 

Temperature setting -1 ºC 

Temperature setting -2 ºC 

temperature. Very useful for rooms with 

more than one unit and windows facing in 

different directions 

c Not prepared 

00 

01 

Not used 

Used as 00 conditions 

- 

d Not prepared 

00 

01 

Not used 


- 

e Not prepared - - -


available 


Not prepared 

2 Not prepared 

Not prepared 

Drain pump in heating mode 

 

Static pressure selection 

Increase in fan speed (RCI, 

RCIM, RCD) 

pag. 211 

TCGB0052-rev.1-07/2009 

- - - 

00 Not available This function is used to activate the drain 

pump in heating mode. 

01 Available 

00 

Medium static pressure 

(factory settings) 

01 High static pressure 

02 Low static pressure 

00 Normal 

01 Speed increase 1 

02 Speed increase 2 

This function is used to change the static 

pressure levels on the RPI units from the 


This function is used to change the fan 

speed for high ceilings. 

 

High speed with heating thermo 

OFF 

00 

01 

Not available 

Available 

This function is used to increase the fan 

speed when the thermostat is OFF. 

 

Cancelling enforced 3-minute 

minimum compressor operation 

time 

00 

01 

Not available 

Available 

This function is used for canceling the 

enforced 3-minute minimum compressor 

operation time. 

00 

Control using indoor 

suction thermistor 

 

Remote control switch 

thermistor 

01 

Control using the remote 

control thermistor 

Control using average 

This function is used to control the unit with 

the remote control thermistor. 

02 

value of the indoor suction 

thermistor and the remote 

control thermistor 

Not prepared - - - 

A Not prepared - - - 

 

Selection of forced stoppage 

logic 

00 

01 

Forced stoppage input at 

contact A 

Forced stoppage input at 

contact B 

This function is used to select the forced 

stoppage logic. 

Not prepared - - - 

d Not prepared 

E Not prepared 

00 Standard 7 positions. 

F 

Change in angle of louver 

position 

01 

02 

Cold currents 

High ceilings 

5 positions, the 2 positions with vertical 

louver disappear. 

5 positions, the 2 positions with horizontal 

louver disappear. 

d Power supply 1 ON/OFF 

00 Not available This function retains the unit's settings if 

the power supply is interrupted. The unit 

will restart when power is restored. 

01 Available 

d2 Not prepared - - - 

d Power supply 2 ON/OFF 

d 

Prevention of drop in heat 

discharge air temperature. 

00 Not available This function retains the unit's settings if 

the power supply is interrupted. The unit 

will restart when power is restored if the 

unit was ON before the power failure. 

01 Available 


01 Available 

- 

10


available 


d 

d 

Prevention of drop in heat 

discharge air temperature. 

Control of ambient temperature 

for energy saving 

pag. 212 

TCGB0052-rev.1-07/2009 


01 Available 


01 Available 

d Not prepared - - - 

(Econofresh) All Fresh mode 

00 

01, 02 

Not available 

Available 

This function enables you to open the outdoor air 

damper 

E 

E2 

(KPI) Ventilation mode 

Econofresh) Enthalpy sensor 

(KPI) Increase in air supply 

volume 

00 Automatic ventilation 

01 

02 

Ventilation with heat 

exchanger 

Ventilation without heat 

exchanger 


01 Available 

This function is used to set the ventilation mode 

of the total heat exchanger 

This function sets the enthalpy sensor input 

00 Not available This function is used to make the room pressure 

higher than that of the surrounding rooms. 

01 Available 

E Not prepared - - - 

(Econofresh) Gas sensor 

00 

01, 02 

Not available 

Available 

This function sets the gas sensor input. 

E 

00 Standard 

(KPI) Previous cooling/heating 

period 

01 30 minutes 

This function delays the start-up of the heat 

exchanger. 

02 60 minutes 

E Not prepared - - - 

Operating time of indoor 

00 Not available - 

E ventilator after stoppage of 

01 60 minutes - 

cooling operation 

02 120 minutes - 


00 

01 

Not used 


- 

E 

Ventilator operation control with 

heating thermo OFF 


EA Not prepared 

E 

E 

Ventilator operation control with 

cooling thermo OFF 

Forced stoppage of thermostat 

ON in cooling mode 

Ed Not prepared 

EE Automatic fan speed control 


01 Available 

00 Not used 

01 Used as 00 conditions 

00 Not used 




01 LOW 

02 SLOW 


01 Available 

00 Not used 



01 Available 

- 

- 

- 

- 

- 

- 

- 

- 

-


available 


F Automatic OFF setting of timer 

F2 

Setting main and sub remote 

control 

pag. 213 

TCGB0052-rev.1-07/2009 

00 No function 

01 Deactivate after 1 hour 

02 Deactivate after 2 hours 

~ ~ 



00 Main 

01 Sub 

This function is used to set the timer-OFF 

function automatically when the unit is started 

with the remote control switch. 

This function is used when two remote controls 

are installed in one system. 

F Not prepared - - - 





F Locking operation mode 

F Temperature lock 

Fa Fan speed lock 

F Horizontal louver position lock 

Fc 

Fd 

FE 

Item 

Limited temperature range in 

cooling mode 

Limited temperature range in 

heating mode 

Automatic heating operation 

mode 

Optional functions for 

PSC-A64S 

A Setting the operation mode 

Setting set temperature 

c Setting cooling only 

d Setting fan speed 

E 


operation 

00 Not permitted 

01 Permitted 


01 Permitted 


01 Permitted 


01 Permitted 

00~10 

01~10: Minimum 

temperature +1~+10ºC 

00~10 

01~10: Maximum 

temperature -1~-10ºC 

00 5 ºC 

01 10 ºC 

02 15 ºC 

- 

- 

- 

- 

00: Standard 

00: Standard 

Contents Setting condition Description 

Set 

“no display" 

Set 


Set 


Set 


Set 


Available 

Not available 

Available 

Not available 

Available 

Not available 

Available 

Not available 

Available 

Not available 

This function eliminates the possibility of changing 

the operation mode. 

The same optional function must be selected 

in the remote controller. 

This option only affects the settings made 

with the PSC-5S 

This function eliminates the possibility of changing 

the set temperature. 



This option affects only settings made with the 

PSC-5S. 




PSC-5S. 

Same optional function must be selected in the 

remote control. 


PSC-5S. 

This function changes automatically from Cool to 

Heat operation. 

If not available from remote controller this function 

cannot be used. 

10


pag. 215 

TCGB0052-rev.1-07/2009 

11. Troubleshooting 

This chapter provides you with a concise description of the most common alarm codes of the new UTOPIA DC INVERTER 

ES series. 

Contents 

11. Troubleshooting .....................................................................................................215 

11.1 Alarm codes........................................................................................................................................ 216 

11


If RUN lamp flashes for 2 seconds, 

there is a failure in transmission 

between the indoor unit and the remote 

control switch. Possible causes are: 

a) The remote cable is broken 

b) Contact failure in remote control 

cable 

c)IC or microcomputer defective 

In all cases, contact your service 

provider. 

11.1 Alarm codes 

Code 

No. 

pag. 216 

TCGB0052-rev.1-07/2009 

If RUN lamp flashes 5 times (5 seconds) with unit number and alarm code 

displayed, note the alarm code (see table below) and contact your service 

provider. 

Category Type of abnormality Main cause 

01 Indoor unit Activation of protection device 

02 Outdoor unit Activation of protection device 

03 

04 

Transmission 

Abnormality between indoor (or outdoor) and 

outdoor (or indoor) units 

Abnormal operation between inverter and control 

PCB 

Failure of fan motor, drain discharge, PCB, 

relay, float switch activated 

Activation of PSH, locked motor, abnormal 

operation in the power supply phase 

Incorrect wiring. Failure of PCB. Tripping of 

fuse. Power supply OFF 

Transmission failure between inverter PCBs 

05 Power supply Abnormal power supply Power source with abnormal wave pattern 

06 Voltage drop 

Indoor unit 

number 

Voltage drop due to excessively low or high 

voltage in outdoor unit 

07 

Drop in discharge gas overheating 

Cycle 

08 Increase in discharge gas temperature 

Alarm code 

Voltage drop in power supply. Incorrect wiring 

or insufficient capacity of power supply wiring 

Excessive refrigerant charge. Expansion valve 

lock open 

Insufficient refrigerant charge, refrigerant 

leakage. Expansion valve closed or clogged 

11 

Inlet air thermistor 

12 

13 

Sensor in 

indoor unit 

Outlet air thermistor 

Anti-freeze thermistor 

Failure of thermistor, sensor, connection 

14 Gas pipe thermistor 

19 Protection device for fan motor is triggered Failure of fan motor 

20 

Compressor thermistor 

22 Outdoor unit sensor Outside air thermistor 


24 Evaporation thermistor 

31 

Incorrect setting of outdoor and indoor units Incorrect setting of capacity code 

35 System 

Incorrect setting of indoor unit number Duplication of indoor unit number 

38 Abnormality in protective circuit in outdoor unit 

Failure of indoor unit PCB; incorrect wiring; 

connection to indoor unit PCB 

41 

Cooling overload (possible activation of high 

pressure device) 

O.U. pipe thermistor temp. is higher than 55ºC 

and the compressor top temp. is higher than 

95ºC, O.U. protection device is activated 

42 


Heating overload 

(high-pressure device may be activated) 

If I.U. freeze protection thermistor temp. is 

higher than 55ºC and compressor top temp. 

is higher than 95ºC, O.U. protection device is 

activated 

Stoppage due to excessive decrease of 

47 

Activation of protection device for low pressure 

drop 

evaporating temperature (Tem < -35ºC) is 

activated 3 times in one hour, motor locked in 

heating mode 

 

Alternate 

indication 

every 

second 

Model code 

No. of indoor units 

connected 

Alarm code


¡ 

Alarm codes (Cont.) 

Code 

No. 

Category Type of abnormality Main cause 

Overload, overcurrent. Failure of DIP IPM, 

48 

Activation of overcurrent protection 

IPM or PCB2, heat exchanger clogged, locked 

compressor 

51 Abnormality in inverter current sensor 

Incorrect wiring of current sensor. Failure of 

control PCB, DIP IPM, IPM or PCB2 

53 Inverter 

Activation for protection of DIP IPM, IPM or PCB2 

Abnormality in DIP IPM or PCB2. 

Compressor failure, heat exchanger clogged 

Abnormal inverter fin thermistor 

54 Increase in inverter fin temperature 

Heat exchanger clogged 

Abnormal outdoor fan 

55 Abnormality in DIP IPM, IPM or PCB2 Failure of DIP-IPM, IPM or PCB2 

Disconnected wire or incorrect wiring between 

57 Outdoor fan Fan motor abnormality 

control PCB and inverter PCB 

Incorrect wiring or abnormality in fan motor 

59 Inverter Abnormality in inverter fin thermistor 

Lost terminals, disconnected wire, failure of 

inverter thermistor 

EE Compressor Compressor protection alarm Compressor failure 

b1 IU nº setting Incorrect unit nº setting 

Over 64 indoor units, setting by nº or indoor unit 

address 

96 

97 

Sensor on KPI Unit 

Room temperature thermistor 

Outdoor temperature thermistor 


pag. 217 

TCGB0052-rev.1-07/2009 

11

HITACHI is participating in the EUROVENT Certification Programme. 

Products are as specified in the EUROVENT Directory of Certified 

Products. 

HitachiAir Conditioning Products Europe, S.A. 

Ronda Shimizu,1 - Políg. Ind. Can Torrella 

08233 Vacarisses (Barcelona) España 

ISO 9001 Certified byAENOR, Spain 

ISO 14001 Certified byAENOR, Spain 

Hitachi Appliances, Inc. 

Shimizu-shi, Shizuoka-ken, 

Japan 

ISO 9001 Certified by JQA, Japan 

ISO 14001 Certified by JQA, Japan 

Hitachi Air Conditioning Products (M) Sdn. Bnd. 

Lot No. 10, Jalan Kemajan Bangi Industrial Estate 

43650 Bandar Baru Bangi, Selangor Darul Ehsan, Malaysia 

Certification ISO 9001, Malaysia 

Certification ISO 14001, Malaysia 

TCGB0052 rev.1 - 07/2009 - Printed in Spain

utopia dc-inverter es series hvrn1/h(v)rns(e) - AB Klimatizace, s.r.o.

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