English version - Rhoss

K20301EN ed.2 

TCAVZ 2310÷2670 

Z-Power range 

Macrosystem 

297,5 ÷ 665,9 kW 

Packaged air cooled water chillers with axial fans. 

Range with semihermetic screw compressors and R134a refrigerant gas.

TCAVZ 2310 ÷ 2670 Z-POWER series 

A complete and flexible range 

Thirtheen models from 310 to 670 kW. 

This allows perfect selection of the model 

based on the cooling capacity required in the 

field, with no waste. 

The chillers of the Z-POWER range are also 

suitable for any sort of installation, thanks to 

their extensive operating limits. 

The standard unit works normally with an 

outdoor air temperature from 42÷45°C down 

to 5°C (down to -15°C with the FI15 

accessory). 

Furthermore, the unit can work up to 50°C 

with stepped cooling capacity. 

ESEER and IPLV 

On average, chillers perform throughout their 

life cycle providing lower cooling capacity than 

that for which they were purchased. 

Average efficiency is evaluated using the 

indexes ESEER (European) and IPLV 

(American). 

Z-POWER series chillers were designed to 

allow outstanding efficiency at partial loads 

and to achieve high ESEER and IPLV values, 

resulting in decreased energy consumption. 

Optimized components R134a 

The components used in the Z-POWER 

range were specially developed to achieve 

high performance and energy efficiency with 

R134a gas. 

The new screw compressors and the counterflow, 

both shell-and-tube and plate, heat 

exchangers dedicated to this gas are among 

the features of this range. The fan assembly is 

sized to provide excellent heat exchange with 

reduced noise. Also, the electronic expansion 

valve allows quick, precise adjustment in 

various load conditions. 

Versions 

Various versions are available to meet 

specific installation silence requirements. 

Noise reduction in the soundproofed version, 

with acoustic insulation of the compressor 

compartment, can be further enhanced 

through speed reduction of the fans in the 

silenced version. 

Proper operation and performance are 

ensured by the optimized design of the fan 

section. 

In the silenced version, the electronics enable 

the chiller to work with outdoor air 

temperatures of up to 50°C with stepped 

cooling capacity and a raise in noise over 

40÷43°C. 

A wide range of accessories 

The chillers of the Z-POWER range can be 

equipped not only with traditional accessories 

but also with total or partial recovery heat 

exchangers for the production of hot water at 

up to 60°C. 

In applications with outdoor air temperatures 

down to -15°C, devices are available to 

control fan speed. 

On request, the chillers can be equipped with 

pump assemblies with one or two pumps. 

Chillers up to 500 kW, equipped with plate 

exchanger, may have pump unit with 1100 

litre buffer tank and single or double electric 

pump. 

2

TCAVZ 2310 ÷ 2670 Z-POWER series 

Condensing section 

The geometry of the condensing section and 

the fluid-dynamics flow generated by the fans 

were designed to maximize efficiency of 

thermal exchange and to offset load losses, 

while holding down the level of noise 

propagated to the room. 

Also, the standard machine includes a 

stepped pressure-switch type of 

condensation control to allow operation with 

outdoor air temperatures down to +5°C. 

Evaporator 

Shell and tube or plate evaporator (it depends 

on the model) and perfect counter-flow 

thermal exchange. 

The evaporator is equipped with two 

refrigerant circuits (one per compressor). This 

also improves efficiency at partial loads. 

Compressor 

The Z-POWER range uses semi-hermetic 

screw compressors specifically designed to 

operate with R134a gas. 

Each compressor has 3 capacity control 

steps, for a total of 6 steps (2x3) thus 

providing the chiller with optimal operation 

even at partial loads with substantial energy 

savings. 

An option is also available that allows 

modulating control of cooling capacity. 

EEV:Electronic expansion valve 

The chillers are standard equipped with the 

latest electronic expansion valve managed by 

microprocessor control. 

Besides permitting precise control of the flow 

of refrigerant gas, this allows accurate 

operation of the cooling unit with improved 

response speed over traditional thermostatic 

expansion valves. 

3

main features 

INDEX 

Main features page 5 

Technical characteristics page 6 

Electronic control page 10 

Controlli e regolazioni pag. 11 

Performances page 12 

Pressure drops page 15 

Sound levels page 16 

Limiti di funzionamento pag. 17 

Performances and pressure 

drops of heat recuperators page 18 

Dimensions page 24 

Installation page 30 

Weight distribution page 31 

Electrical connections page 33 

Intended conditions of use 

TCAVBZ units are packaged water chillers 

with air cooled and axial fans. 

TCAVIZ - TCAVS units are packaged water 

chillers with air cooled and axial fans, in 

silenced format. 

TCAVBZ, TCAVIZ and TCAVS chillers are to 

be used in air conditioning systems that 

require the use of chilled water which is not 

for consumption. 

The unit is designed for outdoor 

installation. 

The units conform to the following directives: 

● Machine Directive 98/37/CEE (MD); 

● Low voltage Directive 2006/95/CEE (LVD); 

● Electromagnetic compatibility Directive 89/336/CEE (EMC); 

● Pressure equipment Directive 97/23/CEE (PED). 

Guide to reading the product code 

SERIES coding 

T C A V B 

Water chiller Cooling only Axial Semi-hermetic Standard 

fans screw version 

compressors 

I 

Soundproofed 

version 

S 

Silent 

version 

Z 

R134a refrigerant 

charge 

“MODEL” coding 

2 310 ÷ 670 

No. of 

compressors 

Approximate 

cooling 

capacity 

(kW) 

Example: TCAVSZ 2540 

● Water chiller, cooling only, air cooled. 

● Silent version. 

● 2 no. semi-hermetic screw compressors. 

● Approximate cooling capacity 540 kW. 

4

main features 

Main features 

● Loadbearing structure in polyester powder 

coated galvanized steel sheet. 

● Semi-hermetic screw compressors, 

specifically designed to work with R134a gas. 

The compressor start-up is star-triangle type 

with starting current limited by equalizer and 

load stepping, complete with integral 

protection and crankcase heater. 

The compressors are also complete with 

intercept valve on the refrigerant outlet pipe. 

● Capacity control of the chiller as in the 

following table: 

MODEL Compressors/Steps No. Circuits No. 

2310 ÷ 2670 2 / 6 2 

● Water side shell and tube heat exchanger 

with counter-flow thermal exchange or plate 

exchanger with counter-current heat 

exchange. The shell and tube heat exchanger 

is made of carbon steel with copper pipes, air 

bleed valve, water discharge cock. The plate 

exchanger is made of stainless steel double 

circuit on the refrigerant side and single circuit 

on the water side to improve energy efficiency 

at partial loads. Both heat exchangers types 

have water differential pressure switch and 

insulation of closed cell expanded 

polyurethane rubber with anti U.V. protection 

layer. 

● Victaulic type water connections to the 

evaporator, female threaded on the 

recuperator and desuperheater. 

● Air-side exchanger made from 

mechanically expanded copper pipes and 

corrugated shaped aluminium fins to increase 

heat exchange efficiency. 

● Axial electric fans, fitted with built-in 

protector and safety grilles. The fans are 

equipped with pressure-switch control to 

ensure operation with outdoor air temperature 

down to +5°C. 

● Two refrigerant circuits with mild copper 

tubes and steel and silver alloy welding. Each 

cooling circuit complete with: cartridge filterdrier, 

charge connections, manual reset high 

pressure switch, automatic reset low pressure 

switch, indicator of gas passage and any 

presence of humidity, electronic expansion 

valve (for hermetic closure on the liquid line 

with the unit stopped), valve located on liquid 

line, safety valves located in high pressure 

sections., intercept and solenoid valve on the 

liquid line, safety valve in the high pressure 

section, suction line insulation of closed cell 

expanded polyurethane rubber with anti U.V. 

protection layer. 

● Refrigerant high and low pressure gauge 

for each refrigeration circuit. 

● Refrigerant charge of eco-friendly R134a. 

Electric panel 

● Electric panel complying with IEC 

standards, with ventilation, waterproof box 

complete with: 

• electrical wiring configured for 

400V-3ph-50Hz power supply; 

• transformer for auxiliary circuit; 

• auxiliary power supply 230V-1ph-50Hz; 

• control power supply 24V-1ph-50Hz; 

• phase monitoring to protect the compressor; 

• power contactors; 

• remotable controls: 

- remote ON/OFF, double set point (DSP 

accessory); 

- remotable machine controls: compressor(s) 

operation indicator light and general lockout 

indicator light; 

• main isolator switch on the power supply, 

complete with safety door interlock; 

• automatic protection switch for auxiliary 

circuit.; 

• fuses for each compressor (thermal 

overloads switches for the protection of each 

compressors is an option); 

• fuses for auxiliary circuit. 

● Programmable microprocessor electronic 

board with user terminal fitted to the unit, 

remotable up to 1,000 metres. 

The electronic board performs the following 

functions: 

• regulation and management of chiller inlet 

water temperature set points (with the optional 

accessory CCL - stepless capacity control - 

chiller are managed through the evaporator 

outlet water temperature); 

• management of safety timer delays; of the 

run-hours meter for each compressor; of 

automatic inversion of the compressor 

operation sequence; of the circulation or user 

system pump (both evaporator side and 

condenser side); of the electronic antifreezing 

protection, of the load steps, of functions that 

integrate the workings of individual devices 

fitted to the unit; 

• management of the electronic expansion 

valve (EEV) with possibility to read and 

display suction temperature, evaporation 

pressure, overheating and valve opening 

status. 

• LCD display of programmed set points, of 

inlet/outlet water temperatures, of the 

condensing pressures, of alarms; 

● multilanguage management (Italian, 

English, French, German, Spanish) of display 

information. 

● alarm history management. The following is 

memorized for each alarm (if KSC accessory 

is provided): 

• date and time of activation; 

• alarm code and description; 

• the water inlet/outlet temperature values 

when the alarm intervened; 

• condensation pressure values at the time of 

the alarm; 

• alarm delay time from the switch-on of the 

connected device; 

• compressor status when the alarm 

intervened. 

• self-diagnosis with continuous monitoring of 

the machine’s operational status. 

● Advanced functions: 

• configured for serial connection via RS 485 

port for communication with building 

automation, centralised systems and 

supervision networks; 

• management of time bands and operation 

parameters with the possibility of daily/weekly 

programming; 

• check up and verification of programmed 

maintenance status; 

• computer-aided testing of the units. 

Versions 

● B - Standard version (TCAVBZ). 

● I - Soundproofed version, with soundproof 

jackets on compressors (TCAVIZ). 

● S - Silent version with soundproof jackets of 

compressors and low fan speed (TCAVSZ). 

Factory-fitted accessories 

● PUMP - One or two electric pumps, with 

one in standby and automatic operation based 

on operating times (for the equal division of the 

operating hours) or in the event of alarms. The 

electric pumps are available in the low or high 

pressure versions. 

● TANK&PUMP - as for the PUMP accessory 

described above, furthermore provided with: 

1100 litre built-in buffer tank (for 2310÷2470 

models), expansion tank, air bleed valves, 

safety valve and water pressure gauge. The 

buffer tank is provided on the water outlet. 

● RAS - Buffer tank antifreeze heater, in 

order to prevent freeze in the buffer tank when 

the machine is in OFF condition (only if the 

machine is connected to power supply). 

● RA - Evaporator antifreezing electrical 

heater with switch. 

● DS - recovery with desuperheater. 

● RC100 - 100% recovery with condensation 

heat recuperator. The accessory is complete 

with condensation control FI10 and a 

differential pressure switch on the recovery 

heat exchanger. 

TRD - Thermostat with display to show the 

water temperature at the recuperator/ 

desuperheater inlet with the possibility of 

programming the activation set-point of a 

possible remote regulation device. 

● RDR - Desuperheater or heat recovery 

trace heater, used to prevent the risk of ice 

forming (only with DS or RC100) when the 

machine is in OFF condition (only if the 

machine is connected to power supply). 

● IM - thermal overloads switches for the 

protection of the compressors and fans. 

● RR - Units with intercept valve on the 

compressor inlet (valve comes as standard on 

outlet). 

● CCL - Unit with linear control of compressor 

capacity (25-100%). 

● SLO - oil level sensor (this accessory is 

suggested when it is difficult to visual check 

the pilot lamp of the compressor or when a 

more detailed monitoring is requested). 

● FI10 - Proportional electronic device for the 

continuous adjustment of the fan rotation 

speed down to an outside air temperature of 

–10°C. 

● FI15 - Proportional electronic device for the 

continuous adjustment of the fan rotation 

speed down to an outside air temperature of 

–15°C. 

● CR - Power factor correction capacitors 

(cosφ > 0,94). 

● SPS - refrigerant pressure signal on high 

and low side, on card. 

● SS -RS 485 serial interface for 

communicating with building management 

systems, centralised control systems and 

supervision networks (proprietary protocol, 

Modbus RTU). 

● FTT10 -LON serial interface - Serial 

interface for connection to BMS with protocol 

LON standard FTT10. 

● CMT - control of power supply voltage 

MIN/MAX values. 

● RAP - Unit with copper/pre-painted 

copper/aluminium coils. 

● BRR - Unit with copper/copper coils. 

● RRS - Unit with copper/tin-plated copper 

coils. 

● RPE - Lower protective grilles. 

On request, the following factory fitted 

accessories are available: 

● DSP - double set point 

● CS - set point setting (4-20 mA). 

Accessories supplied separately 

● KRP - Protection grille. 

● KSAM - Spring antivibration mountings. 

● KTR - Remote keyboard for control at a 

distance with the same functions as the one 

built into the unit. 

● KSC - Clock board to display date/hour, for 

the management of the machine with hourly, 

daily and weekly start-stop periods, with the 

possibility of varying the set points. 

5

TCAVBZ - TCAVIZ 2310 ÷ 2470: 

technical characteristics 

MODEL TCAVBZ - TCAVIZ 2310 2320 2340 2360 2400 2430 2470 

STANDARD-SOUNDPROOFED VERSION 

Technical data 

Nominal cooling capacity (*) kW 307,2 326,0 345,2 367,4 394,8 427,9 467,4 

E.E.R. (*) 2,83 2,84 2,82 2,80 2,86 2,83 2,80 

E.S.E.E.R. 3,95 3,96 3,96 3,98 3,99 3,91 3,83 

I.P.L.V. 4,11 4,11 4,12 4,13 4,15 4,07 3,98 

Sound pressure level TCAVBZ (*) (**) dB(A) 79 79 79 79 80 80 80 

Sound power level TCAVBZ (*) dB(A) 97 97 97 97 98 98 98 

Sound power level TCAVIZ (*) dB(A) 96 96 96 96 97 97 97 

Screw compressor/steps n. 2/6 2/6 2/6 2/6 2/6 2/6 2/6 

Circuits n. 2 2 2 2 2 2 2 

Fans n. x kW 6x2.1 6x2.1 6x2.1 6x2.1 8x2.1 8x2.1 8x2.1 

Fan nominal air flow m 3 /h 134000 132000 130000 130000 180000 176800 173600 

Evaporator Type Plate Plate Plate Plate Plate Plate Plate 

Evaporator nominal water flow (*) m 3 /h 52,8 56,1 59,4 63,2 67,9 73,6 80,4 

Evaporator nominal pressure drops (*) kPa 16 18 20 18 21 23 27 

Evaporator water contents L 65 65 65 76 76 82 82 

STE nominal pressure drops (*) (***) kPa 37 42 46 52 37 44 52 

STE water contents (***) L 111 111 111 111 113 113 113 

Electrical data 

Total power consumption (*) kW 108,4 114,8 122,3 131,4 138,2 151,1 166,7 

Electrical power supply V-ph-Hz 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 

Auxiliary power supply V-ph-Hz 230/1/50 230/1/50 230/1/50 230/1/50 230/1/50 230/1/50 230/1/50 

Control power supply V-ph-Hz 24/1/50 24/1/50 24/1/50 24/1/50 24/1/50 24/1/50 24/1/50 

Nominal current A 197 207 218 232 244 262 284 

Maximum current A 284 299 314 341 376 386 396 

Starting current A 313 347 362 423 458 522 532 

Dimensions 

Length L mm 3830 3830 3830 3830 4830 4830 4830 

Height H mm 2430 2430 2430 2430 2430 2430 2430 

Depth P mm 2260 2260 2260 2260 2260 2260 2260 

(*) In the following conditions: condenser inlet 

air temperature 35°C; chilled water 

temperature 7°C; temperature differential at 

the evaporator 5°K; fouling factor of 

0.35x10 -4 m 2 K/W 

(**) Sound pressure level in dB(A) refers to a 

measurement in open space at a distance of 

1 m from the unit (average value measured 

on 4 sides) and with directionality factor Q=2. 

(***) Shell and tube evaporator accessory 

(STE) available for models 2310-2470. 

For R134a refrigerant charge and for polyester 

oil capacity (POE), see machine serial no. plate 

6

TCAVBZ - TCAVIZ 2500 ÷ 2670: 


MODEL TCAVBZ - TCAVIZ 2500 2540 2580 2600 2650 2670 



Nominal cooling capacity (*) kW 505,7 538,1 575,5 607,4 646,8 665,9 

E.E.R. (*) 2,87 2,87 2,87 2,81 2,87 2,83 

E.S.E.E.R. 3,91 3,99 3,97 3,95 3,96 3,96 

I.P.L.V. 4,07 4,15 4,13 4,11 4,11 4,12 

Sound pressure level TCAVBZ (*) (**) dB(A) 81 81 81 81 82 82 

Sound power level TCAVBZ (*) dB(A) 98 98 98 98 99 99 

Sound power level TCAVIZ (*) dB(A) 97 97 97 97 98 98 

Screw compressor/steps n. 2/6 2/6 2/6 2/6 2/6 2/6 

Circuits n. 2 2 2 2 2 2 

Fans n. x kW 10x2.1 10x2.1 10x2.1 10x2.1 12x2.1 12x2.1 

Fan nominal air flow m 3 /h 224400 224400 220600 216800 269200 269200 

Evaporator Type Shell and tube Shell and tube Shell and tube Shell and tube Shell and tube Shell and tube 

Evaporator nominal water flow (*) m 3 /h 87,0 92,6 99,0 104,5 111,2 114,5 

Evaporator nominal pressure drops (*) kPa 42 45 39 44 47 50 

Evaporator water contents L 256 256 250 250 250 250 


Total power consumption (*) kW 176,1 187,3 200,7 215,9 225,4 235,7 

Electrical power supply V-ph-Hz 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 

Auxiliary power supply V-ph-Hz 230/1/50 230/1/50 230/1/50 230/1/50 230/1/50 230/1/50 

Control power supply V-ph-Hz 24/1/50 24/1/50 24/1/50 24/1/50 24/1/50 24/1/50 

Nominal current A 303 323 342 364 381 398 

Maximum current A 424 444 470 496 504 504 

Starting current A 583 603 603 629 637 637 

Dimensions 

Length L mm 5830 5830 5830 5830 6680 6680 

Height H mm 2430 2430 2430 2430 2430 2430 

Depth P mm 2260 2260 2260 2260 2260 2260 





0.35x10 -4 m 2 K/W 









7

TCAVSZ 2310 ÷ 2470: 


MODEL TCAVSZ 2310 2320 2340 2360 2400 2430 2470 

SILENT VERSION 


Nominal cooling capacity (*) kW 297,5 315,0 334,5 353,0 382,9 413,4 450,0 

E.E.R. (*) 2,74 2,73 2,71 2,62 2,78 2,72 2,66 

E.S.E.E.R. 3,75 3,78 3,81 3,83 3,86 3,73 3,60 

I.P.L.V. 3,90 3,93 3,96 3,99 4,01 3,88 3,74 

Sound pressure level (*) (**) dB(A) 73 73 73 73 74 74 74 

Sound power level (*) dB(A) 91 91 91 91 92 92 92 

Screw compressor/steps n. 2/6 2/6 2/6 2/6 2/6 2/6 2/6 

Circuits n. 2 2 2 2 2 2 2 

Fans n. x kW 6x1,3 6x1,3 6x1,3 6x1,3 8x1,3 8x1,3 8x1,3 

Fan nominal air flow m 3 /h 104400 102800 101200 101200 140400 137800 135200 

Evaporator Type Plate Plate Plate Plate Plate Plate Plate 

Evaporator nominal water flow (*) m 3 /h 51,2 54,2 57,5 60,7 65,9 71,1 77,4 

Evaporator nominal pressure drops (*) kPa 15 16 18 17 20 22 25 

Evaporator water contents L 65 65 65 76 76 82 82 

STE nominal pressure drops (*) (***) kPa 34 38 42 47 34 41 48 

STE water contents (***) L 111 111 111 111 113 113 113 


Total power consumption (*) kW 108,5 115,5 123,6 134,9 137,8 152,1 169,0 

Electrical power supply V-ph-Hz 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 

Auxiliary power supply V-ph-Hz 230/1/50 230/1/50 230/1/50 230/1/50 230/1/50 230/1/50 230/1/50 

Control power supply V-ph-Hz 24/1/50 24/1/50 24/1/50 24/1/50 24/1/50 24/1/50 24/1/50 

Nominal current A 197 207 219 237 242 262 286 

Maximum current A 284 299 314 341 376 386 396 

Starting current A 304 338 353 414 446 510 520 

Dimensions 

Length L mm 3830 3830 3830 3830 4830 4830 4830 

Height H mm 2430 2430 2430 2430 2430 2430 2430 

Depth P mm 2260 2260 2260 2260 2260 2260 2260 





0.35x10 -4 m 2 K/W 









8

TCAVSZ 2500 ÷ 2670: 


MODEL TCAVSZ 2500 2540 2580 2600 2650 2670 



Nominal cooling capacity (*) kW 490,3 520,9 555,4 584,5 627,9 647,1 

E.E.R. (*) 2,79 2,77 2,74 2,67 2,77 2,71 

E.S.E.E.R. 3,72 3,84 3,83 3,82 3,81 3,80 

I.P.L.V. 3,87 3,99 3,98 3,97 3,96 3,95 

Sound pressure level (*) (**) dB(A) 75 75 75 75 76 76 

Sound power level (*) dB(A) 92 92 92 92 93 93 

Screw compressor/steps n. 2/6 2/6 2/6 2/6 2/6 2/6 

Circuits n. 2 2 2 2 2 2 

Fans n. x kW 10x1,3 10x1,3 10x1,3 10x1,3 12x1,3 12x1,3 

Fan nominal air flow m 3 /h 175600 175600 172600 168800 210400 210400 

Evaporator Type Shell and tube Shell and tube Shell and tube Shell and tube Shell and tube Shell and tube 

Evaporator nominal water flow (*) m 3 /h 84,3 89,6 95,5 100,5 108,0 111,3 

Evaporator nominal pressure drops (*) kPa 39 42 36 40 44 46 

Evaporator water contents L 256 256 250 250 250 250 


Total power consumption (*) kW 175,8 187,8 202,6 219,2 226,7 238,6 

Electrical power supply V-ph-Hz 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 

Auxiliary power supply V-ph-Hz 230/1/50 230/1/50 230/1/50 230/1/50 230/1/50 230/1/50 

Control power supply V-ph-Hz 24/1/50 24/1/50 24/1/50 24/1/50 24/1/50 24/1/50 

Nominal current A 301 318 340 367 380 400 

Maximum current A 424 444 470 496 504 504 

Starting current A 568 588 588 614 619 619 

Dimensions 

Length L mm 5830 5830 5830 5830 6680 6680 

Height H mm 2430 2430 2430 2430 2430 2430 

Depth P mm 2260 2260 2260 2260 2260 2260 





0.35x10 -4 m 2 K/W 







9

microprocessor electronic controller and accessories 

Description of the keypad and display 

1 

5 2 

6 

7 

! 

ALARM 

Prg 

ON 

OFF 

KTR - Remote keypad 

MODE 

3 

4 

1 = Values and parameters DISPLAY: 

displays the numbers and the values of 

all the parameters (e.g. water outlet 

temperature, etc.), the codes of any 

alarms and the status of all the 

resources using message strings. 

2/4 = ▲ (up), ▼ (down) buttons: 

used to scroll the list of parameters, the 

operating status and any alarms; also 

used to change the set point. 

3 = MODE - ENTER button: 

used to to confirm the values entered. 

5 = ALARM button: 

used to display the alarm codes and 

reset any alarms. 

6 = PRG button: 

used to set the main operating 

parameters of the unit. 

7 = ON/OFF button: 

used to switch the unit on and off. 

! 

ALARM 

Prg 

ON 

OFF 

MODE 

Accessory - Remote keypad 

The remote keypad accessory (KTR) is used 

to control the unit and display all the digital 

and analogue process variables relating to the 

unit from a remote position. 

This accessory faithfully reproduces the 

functions of the keypad and the display of the 

microprocessor electronic controller. 

This allows all the functions of the unit to be 

controlled directly from inside the room. 

TRD - Thermostat with display 

°C 

SEL 2 

PRG 

mute 3 

4 

5 

1 = DISPLAY: 

displays the recuperator/desuperheater inlet water 

temperature value. 

2/4/5 = keys SEL, ▲ (up), ▼ (down): 

enable programming of the set-point and activation 

differential of a possible remote regulating device. 

3 = Key PRG/mute: 

allows entering the programming menu parameters. 

(only for RHOSS authorised personnel). 

The installation in the unit of the thermostat 

with display accessory (TRD) enables display 

of the recuperator/desuperheater inlet water 

temperature and programming of the 

activation set-point of a possible remote 

regulation device (e.g. ON/OFF 3-way valve), 

allowing a rational and efficient use of the 

recovered thermal energy. 

1 

10

! 

ALARM 

Prg 

ON 

OFF 

MODE 

ACCESSORIES: controls and adjustments 

SS / FTT10 serial interface 

Serial communication 

The electronic controller which is fitted to all 

the units can communicate with an external 

system through a serial communication line. 

Supervision system 

In general, a supervision system allows 

access to all the functions of the unit, such as: 

● setting all the values accessible from the 

keyboard; 

● reading all the process variables of the 

digital or analogue inputs and outputs; 

● reading the various alarm codes and 

possibly resetting them; 

● reading all the programming parameters 

and changing some of them. 

Note: 

For further information contact RHOSS sales 

support service. 

performance 

Selecting the unit and using the 

performance tables 

● Tables “A” and “B” provide the cooling 

capacity (QF) and the power input (P), 

according to the water temperature at the 

evaporator outlet, with a constant temperature 

differential ∆t = 5°C, and the ambient air 

temperature. 

● Tables “D” and “E” provide, for each 

model, the energy indexes, E.E.R., ESEER 

and IPLV, values. 

● As regards the operating limits (see page 

16), the values in tables “A” and “B” can be 

interpolated to calculate the performance, but 

not extrapolated. 

● Tables “F” and “G” provide, for each model, 

the sound pressure values in dB by octave 

band, the total sound power level in dB(A) and 

the sound pressure values in dB(A) at 

different distances. 

● Table “H” shows the correction coefficients 

to be applied to the nominal values if using a 

water glycol solution. 

11

TCAVBZ - TCAVIZ 2310 ÷ 2670: performances 

Table “A” - Cooling capacity TCAVBZ - TCAVIZ 

2670 2650 2600 2580 2540 2500 2470 2430 2400 2360 2340 2320 2310 

Tue (°C) 

Ta (°C) 

25 30 35 40 42 45 

MODEL QF P QF P QF P QF P QF P QF P 

kW kW kW kW kW kW kW kW kW kW kW kW 

5 311,6 91,9 299,5 98,3 286,7 105,6 272,8 113,3 267,0 116,6 258,0 121,8 

7 333,7 94,7 320,8 101,3 307,2 108,4 292,9 116,2 286,7 119,5 277,2 124,7 

9 356,4 97,6 343,3 104,3 329,4 111,5 313,5 119,2 307 122,6 297,4 127,9 

11 379,7 100,7 366,3 107,4 351,5 114,6 335,8 122,5 328,3 125,9 318,1 131,1 

13 404,7 103,9 390,4 110,6 374,6 117,9 358,0 125,8 350,6 129,2 339,8 134,5 

5 329,3 97,2 316,9 104,0 303,3 111,8 289,6 120,2 283,5 123,7 273,6 129,3 

7 353,1 100,1 339,9 107,0 326,0 114,8 310,8 123,3 304,3 126,9 293,8 132,4 

9 377,2 103,2 363,6 110,2 348,8 118,1 332,6 126,5 325,7 130,1 315,1 135,7 

11 403,0 106,4 388,5 113,5 372,8 121,4 355,6 130,0 348,1 133,5 337,5 139,1 

13 428,8 109,8 413,4 116,9 397,3 124,9 379,7 133,5 372,4 137,2 360,5 142,7 

5 349,5 103,2 336,2 110,6 322,3 118,9 306,8 128,1 300,7 131,9 291,0 137,9 

7 373,7 106,3 360,0 113,8 345,2 122,3 329,7 131,4 322,7 135,3 312,3 141,3 

9 399,6 109,5 385,1 117,1 369,3 125,6 353,3 134,9 345,8 138,8 334,8 144,9 

11 426,8 112,9 411,4 120,7 395,2 129,2 377,6 138,5 370,2 142,4 357,9 148,5 

13 454,2 116,5 439,0 124,5 421,8 133,0 403,1 142,2 395,2 146,2 382,8 152,4 

5 372,5 110,8 358,6 118,8 342,9 127,9 327,0 137,5 320,1 141,6 309,6 148,1 

7 398,6 114,3 384,0 122,4 367,4 131,4 350,0 141,1 342,7 145,3 331,7 151,7 

9 425,5 117,8 409,4 126,1 393,2 135,2 374,8 144,9 367,1 149,1 354,9 155,5 

11 452,4 121,6 436,8 130,0 419,0 139,0 400,3 148,9 391,5 153,0 379,3 159,5 

13 481,2 125,5 464,1 134,0 446,0 143,1 426,3 153,0 417,8 157,3 404,9 163,8 

5 398,3 117,9 383,9 125,8 368,2 134,8 351,8 144,7 344,3 149,0 333,4 155,7 

7 425,4 121,1 410,8 129,2 394,8 138,2 376,8 148,3 369,6 152,7 357,4 159,4 

9 455,1 124,4 439,0 132,6 421,5 141,8 403,9 152,0 395,6 156,4 382,7 163,2 

11 485,0 127,9 469,3 136,2 450,3 145,5 430,3 155,9 422,9 160,3 409,4 167,1 

13 516,3 131,6 499,8 140,0 480,4 149,4 459,4 159,9 450,9 164,3 436,7 171,2 

5 430,7 128,4 416,2 137,3 399,3 147,3 381,2 158,3 373,4 163,0 361,6 170,5 

7 461,1 132,0 445,2 141,0 427,9 151,1 408,7 162,4 400,4 167,1 387,9 174,7 

9 492,5 135,6 475,6 144,8 457,4 155,1 437,6 166,5 428,9 171,3 415,1 178,9 

11 525,4 139,6 507,6 148,8 488,3 159,2 466,8 170,8 457,6 175,7 443,7 183,4 

13 559,3 143,8 541,1 153,3 520,8 163,7 498,1 175,2 488,4 180,1 473,7 187,9 

5 470,3 141,1 454,3 151,0 436,1 162,2 416,5 174,8 408,8 180,1 395,5 188,5 

7 503,6 145,2 486,7 155,3 467,4 166,7 446,7 179,3 438,0 184,6 424,5 193,1 

9 538,7 149,4 519,6 159,7 500,4 171,2 478,5 184,0 468,7 189,5 454,4 198 

11 574,3 153,7 555,5 164,1 533,8 176,0 510,7 189,0 501,6 194,4 485,9 202,9 

13 610,4 158,3 591,7 168,9 568,9 180,8 544,5 193,9 534,9 199,5 518,3 208,1 

5 514,5 150,5 495,5 160,5 473,3 171,8 451,2 184,4 441,7 189,8 425,9 198,3 

7 548,1 154,4 528,5 164,7 505,7 176,1 481,8 188,9 471,5 194,4 455,8 202,8 

9 584,1 158,5 562,8 168,9 539,3 180,6 514,7 193,4 503,6 199,0 486,8 207,5 

11 621,5 162,8 598,4 173,2 574,2 185,1 546,6 198,2 535,7 203,8 519,0 212,4 

13 659,0 167,3 636,4 177,9 610,3 189,8 581,9 203,1 570,1 208,7 551,2 217,5 

5 548,6 159,7 528,1 170,4 504,4 182,6 480,7 196,1 470,0 202,0 453,9 210,9 

7 584,8 163,8 562,5 174,9 538,1 187,3 512,6 200,9 501,5 206,8 484,9 215,9 

9 622,3 168,4 599,4 179,3 574,2 192,0 546,8 206,0 535,4 211,8 517,2 221,0 

11 661,2 173,0 637,6 184,3 610,5 196,8 582,3 211,0 569,4 217,0 550,6 226,3 

13 701,5 177,8 677,2 189,3 649,3 202,2 619,1 216,1 607,0 222,2 586,5 231,6 

5 587,7 171,3 564,7 182,7 539,2 195,7 511,1 210,4 499,6 216,7 481,7 226,5 

7 626,8 175,9 601,8 187,5 575,5 200,7 546,6 215,5 534,8 221,9 515,1 231,9 

9 667,2 180,8 641,5 192,5 613,2 205,9 582,8 220,9 570,0 227,3 550,4 237,4 

11 709,2 186,1 682,8 198,0 652,2 211,4 620,9 226,5 607,8 233,0 587,0 243,1 

13 752,6 191,5 724,0 203,5 692,6 217,1 659,8 232,3 645,5 238,7 624,1 249,1 

5 623,0 184,1 598,4 196,4 569,9 210,5 540,2 226,6 528,6 233,4 509,3 244,3 

7 664,6 189,1 636,7 201,5 607,4 215,9 576,8 232,1 564,2 239,1 544,3 250,2 

9 707,9 194,4 679,1 206,9 647,6 221,4 616,1 237,8 602,5 245,0 580,6 256,1 

11 752,7 200,1 723,0 212,7 689,2 227,2 655,5 243,9 640,8 251,1 619,7 262,4 

13 799,0 206,0 767,1 218,8 733,8 233,5 697,7 250,1 681,8 257,4 658,7 268,8 

5 655,0 191,1 632,0 204,6 606,6 220,3 578,2 238,0 566,7 245,7 505,9 242,5 

7 698,6 195,9 673,5 209,6 646,8 225,4 616,9 243,4 605,3 251,1 541,3 248,1 

9 742,2 201,0 716,5 214,8 687,6 230,8 657,1 248,9 644,4 256,8 578,0 253,8 

11 787,4 206,5 761,2 220,5 731,6 236,5 698,8 254,8 638,2 248,7 616,0 259,9 

13 834,2 212,2 807,4 226,3 775,6 242,6 742,0 261,0 678,2 254,9 655,4 266,0 

5 668,8 197,8 649,3 213,0 625,5 230,7 600,1 250,5 589,0 259,1 498,9 243,2 

7 710,9 202,5 689,5 217,9 665,9 235,7 639,2 255,9 627,9 264,6 533,8 248,8 

9 754,6 207,6 732,7 223,0 707,8 241,1 679,8 261,5 589,9 243,6 569,9 254,5 

11 799,8 212,8 777,5 228,7 750,5 246,9 721,8 267,3 629,3 249,4 607,4 260,6 

13 846,6 218,4 822,2 234,4 794,6 252,8 764,5 273,5 668,8 255,6 646,3 266,7 

12 

Tue 

Ta 

= Evaporator outlet water temperature 

(inlet/outlet ∆t = 5°C) 

= Outdoor air temperature (dry bulb) 

QF 

P 

= Cooling capacity with fouling factor of 

0.35x10 -4 m 2 K/W 

= Total electrical power consumption

TCAVSZ 2310 ÷ 2670: performances 

Table “B” - Cooling capacity TCAVSZ 

2670 2650 2600 2580 2540 2500 2470 2430 2400 2360 2340 2320 2310 

Tue (°C) 

Ta (°C) 

25 30 35 40 42 45 

MODEL QF P QF P QF P QF P QF P QF P 

kW kW kW kW kW kW kW kW kW kW kW kW 

5 302,7 91,1 290,7 97,9 277,6 105,3 263,8 113,3 258,1 116,6 249,3 121,9 

7 323,7 94,2 310,9 101,1 297,5 108,5 283,3 116,6 276,7 119,9 267,2 125,3 

9 345,2 97,4 332,2 104,3 317,8 111,8 302,7 119,9 296,3 123,3 286,2 128,7 

11 367,7 100,7 354,4 107,7 339,2 115,2 323,1 123,4 316,8 126,9 306,1 132,3 

13 391,3 104,2 377,1 111,2 361,6 118,8 344,5 127,1 337,1 130,6 326,4 136,0 

5 320,2 96,8 307,4 104,1 294,0 112,1 279,5 120,7 273,4 124,4 264,2 130,1 

7 342,4 100,0 329,3 107,5 315,0 115,5 300,0 124,2 293,5 127,9 283,1 133,6 

9 365,6 103,5 351,7 110,9 337,1 119,1 320,5 127,8 314,2 131,5 303,7 137,3 

11 389,5 107 375,2 114,6 359,6 122,8 342,6 131,7 335,3 135,4 324,1 141,1 

13 414,4 110,7 399,3 118,4 383,3 126,6 365,2 135,6 358,1 139,3 346,2 145,1 

5 339,7 103,3 326,6 111,1 312,3 119,9 297,4 129,3 290,8 133,3 281,2 139,5 

7 363,7 106,8 349,7 114,8 334,5 123,6 318,6 133,0 312,1 137,0 301,3 143,2 

9 388,5 110,4 373,5 118,7 357,8 127,4 340,9 136,9 334,0 141,0 323,1 147,2 

11 414,4 114,3 398,5 122,6 382,4 131,3 364,3 140,9 357,0 145,0 345,4 151,3 

13 440,3 118,3 424,6 126,6 407,5 135,5 388,9 145,2 380,5 149,3 368,2 155,6 

5 359,6 112,9 345,4 121,6 329,9 130,9 313,6 141,1 306,8 145,3 296,5 152,1 

7 383,8 116,8 368,8 125,6 353,0 134,9 335,8 145,1 328,6 149,4 317,1 156,1 

9 409,1 120,8 393,3 129,7 376,6 139,2 358,5 149,5 350,9 153,9 339,4 160,5 

11 435,1 125,0 419,0 133,9 401,4 143,5 382,3 153,9 374,3 158,3 361,5 165,1 

13 462,2 129,4 445,2 138,3 427,4 148,0 406,6 158,5 398,2 162,9 385,4 169,7 

5 387,9 116,4 373,1 124,7 357,6 134,2 340,8 144,6 333,4 149,0 322,5 155,9 

7 414,3 120,0 399,3 128,4 382,9 137,8 365,1 148,4 357,4 152,9 345,3 159,9 

9 442,0 123,7 426,8 132,3 409,5 142,0 390,2 152,5 382,0 157,0 369,9 164,0 

11 471,2 127,5 455,1 136,3 436,9 146,1 416,4 156,8 408,5 161,4 395,1 168,3 

13 501,7 131,6 484,0 140,6 464,8 150,4 444,0 161,2 434,9 165,8 421,5 172,9 

5 417,7 128,0 402,4 137,3 385,2 147,8 367,2 159,5 359,5 164,4 347,3 172,2 

7 446,7 132,0 430,4 141,5 413,4 152,1 393,8 163,7 385,7 168,8 372,7 176,6 

9 476,6 136,2 459,9 145,9 441,9 156,7 421,2 168,4 412,6 173,4 398,9 181,3 

11 508,5 140,6 490,9 150,4 470,6 161,4 450,0 173,4 440,9 178,9 426,5 186,3 

13 540,7 145,2 522,1 155,3 501,4 166,3 478,9 178,4 469,3 183,5 454,8 191,4 

5 455,0 141,8 437,7 152,3 420,3 164,3 400,9 177,5 392,8 183,0 379,7 191,7 

7 486,3 146,3 469,6 157,0 450,0 169,0 429,0 182,3 420,4 188,0 406,5 196,8 

9 519,1 151,0 501,4 161,9 481,3 174,1 459,1 187,6 450,0 193,1 435,3 201,9 

11 553,5 155,9 534,2 167,1 513,5 179,5 490,1 192,9 480,4 198,7 464,9 207,5 

13 589,6 161,1 568,6 172,5 546,1 185,1 521,9 198,8 511,8 204,5 495,4 213,2 

5 500,2 148,8 480,4 159,3 458,6 171,2 435,8 184,3 426,0 189,9 411,0 198,6 

7 533,1 153,0 512,8 163,9 490,3 175,8 465,7 189,1 455,1 194,7 439,1 203,5 

9 567,2 157,7 546,3 168,6 522,1 180,7 496,8 194,1 485,8 199,8 469,3 208,6 

11 602,7 162,4 579,9 173,5 555,0 185,9 528,4 199,3 516,5 205,0 499,6 213,9 

13 638,2 167,4 614,8 178,6 589,1 191,2 561,2 204,8 549,5 210,4 530,9 219,4 

5 531,4 158,6 510,2 169,9 487,0 182,5 462,7 196,7 452,1 202,7 436,3 212,1 

7 566,7 163,3 544,9 174,9 520,9 187,8 493,7 201,7 482,8 207,9 466,0 217,3 

9 602,2 168,2 578,6 180,0 553,9 193,1 527,0 207,3 514,7 213,4 497,3 222,8 

11 639,0 173,3 615,8 185,3 589,2 198,6 560,4 212,9 547,7 219,1 529,3 228,6 

13 677,1 178,7 652,0 190,9 624,7 204,4 595,0 219,0 581,9 225,1 563,0 234,5 

5 570,3 171,2 546,3 183,4 521,2 197,1 493,5 212,2 482,2 218,7 464,0 229,0 

7 607,8 176,5 582,6 188,7 555,4 202,6 526,9 217,9 514,7 224,5 495,9 234,8 

9 646,8 181,8 620,1 194,3 592,2 208,4 561,6 224,1 549,0 230,7 529,7 240,9 

11 686,4 187,6 659,0 200,4 628,9 214,5 597,5 230,3 584,5 237,0 563,3 247,5 

13 727,5 193,6 697,9 206,5 666,9 220,8 634,6 236,8 620,6 243,5 599,5 254,1 

5 601,4 185,1 576,0 198,2 548,1 213,1 518,9 229,9 506,2 237,1 487,2 248,5 

7 640,7 190,7 613,2 204,0 584,5 219,2 553,2 236,1 540,2 243,4 520,6 254,9 

9 681,4 196,6 653,2 210,1 622,3 225,5 590,1 242,7 576,7 249,9 555,2 261,6 

11 723,6 202,8 693,2 216,5 661,4 232,1 627,6 249,5 613,1 257,0 591,8 268,5 

13 767,3 209,5 736,0 223,2 701,9 239,0 666,5 256,6 651,6 264,2 629,7 276,0 

5 638,5 190,0 615,7 204,4 589,8 221,0 561,6 239,5 507,8 232,1 488,9 243,2 

7 680,0 195,5 655,1 210,0 627,9 226,7 599,1 245,5 542,3 238,0 522,9 249,2 

9 723,0 201,1 696,0 215,9 667,4 232,9 637,1 251,8 578,8 244,1 558,1 255,5 

11 766,0 207,1 738,4 222,1 709,2 239,3 630,3 243,2 616,5 250,5 594,6 262,0 

13 810,5 213,3 782,3 228,6 750,8 245,9 669,8 250,0 655,7 257,2 633,2 268,8 

5 653,8 198,0 633,1 214,2 609,5 232,9 582,8 253,4 500,6 233,0 482,0 244,1 

7 693,9 203,2 672,0 219,8 647,1 238,6 619,9 259,8 534,7 238,8 515,5 250,1 

9 735,5 208,8 713,1 225,7 687,7 244,9 583,7 237,8 570,6 245,0 550,2 256,5 

11 780,1 214,8 754,9 231,9 728,2 251,3 621,3 244,1 607,8 251,4 586,2 263,0 

13 824,8 221,1 799,0 238,4 771,7 257,9 660,3 250,9 646,4 258,1 624,2 269,8 

Tue 

Ta 

= Evaporator outlet water temperature 

(inlet/outlet ∆t = 5°C) 

= Outdoor air temperature (dry bulb) 

QF 

P 

= Cooling capacity with fouling factor of 

0.35x10 -4 m 2 K/W 

= Total electrical power consumption 

13

performance 

Energy efficiency with partial loads 

- ESEER and IPLV indexes 

● The E.E.R. index represent an estimate of 

the energy efficiency of the cooling unit at 

nominal design conditions. 

Actually, the operating time of a chiller at 

nominal conditions is generally less than the 

operating time in partial load conditions. 

● The indexes IPLV (Integrated Part Load 

Value) and ESEER (European Seasonal 

EER) are indexes which estimate the average 

seasonal energy efficiency of the chiller in four 

conditions of load and of outdoor air 

temperature. Generally, two chillers that have 

the same EER value may have different IPLV 

or ESEER values. 

As a matter of fact, for an air cooled chiller 

unit, the average energy efficiency depends 

on design decisions and on the temperature 

of the incoming air at the condensing coil. 

● The IPLV e ESEER energy indexes, 

introduced respectively by the (American 

Refrigeration Institute - ARI standard 550/590) 

and by the European Community (project 

EECCAC - Energy Efficiency and Certification 

of Central Air Conditioners), have the same 

formulation, but they differ in outdoor air 

temperatures (see table “C”) and for the 

energy weights which are assigned to the four 

load conditions considered in the calculations: 

100%, 75%, 50% e 25% and for Tw produced 

(6,7°C IPLV / 7°C ESEER). 

IPLV = 1*EER 100% + 42*EER 75% + 45*EER 50% + 12*EER 25% 

100 

● Tables “D”, “D”, show, for each model, the 

values of E.E.R., ESEER and IPLV. 

The high energy efficiency values at partial 

loads were obtained thanks to the 

optimisation of the heat exchangers and the 

adoption of groups of fans managed 

independently based on load conditions. 

Table “D”: E.E.R. - ESEER - IPLV 

for TCAVBZ-TCAVIZ 

MODEL E.E.R ESEER IPLV 

2310 2,83 3,95 4,11 

2320 2,84 3,96 4,11 

2340 2,82 3,96 4,12 

2360 2,80 3,98 4,13 

2400 2,86 3,99 4,15 

2430 2,83 3,91 4,07 

2470 2,80 3,83 3,98 

2500 2,87 3,91 4,07 

2540 2,87 3,99 4,15 

2580 2,87 3,97 4,13 

2600 2,81 3,95 4,11 

2650 2,87 3,96 4,11 

2670 2,83 3,96 4,12 

ESEER = 3*EER 100% + 33*EER 75% + 41*EER 50% + 23*EER 25% 

100 

where EER100% EER75% EER50% EER25% 

represent the efficiency of the cooling unit at 

the four load and temperature conditions 

shown in table “C”. 

Table “C”: load and temperature 

conditions 

Outdoor air temperature: 

Load IPLV ESEER 

100% 35°C 35°C 

75% 26,7°C 30°C 

50% 18,3°C 25°C 

25% 12,8°C 20°C 

Table “E”: E.E.R. - ESEER - IPLV 

for TCAVSZ 

MODEL E.E.R ESEER IPLV 

2310 2,74 3,75 3,90 

2320 2,73 3,78 3,93 

2340 2,71 3,81 3,96 

2360 2,62 3,83 3,99 

2400 2,78 3,86 4,01 

2430 2,72 3,73 3,88 

2470 2,66 3,60 3,74 

2500 2,79 3,72 3,87 

2540 2,77 3,84 3,99 

2580 2,74 3,83 3,98 

2600 2,67 3,82 3,97 

2650 2,77 3,81 3,96 

2670 2,71 3,80 3,95 

All models feature 6 cooling load steps. The table below shows, for each model, the values of 

the cooling capacity % and the total power input % corresponding to each load step delivered. 

STEPS 6 5 4 3 2 1 

P (*)QF (*) P (*)QF (*) P (*)QF (*) P (*)QF (*) P (*)QF (*) P (*) QF (*) 

MODEL kW kW kW kW kW kW kW kW kW kW kW kW 

2310÷2600 100 100 93 94 77 78 50 50 42 44 27 28 

2650÷2670 100 100 83 86 71 72 46 47 35 37 27 28 

QF = Cooling capacity % 

P = Total power input % 

(*) At the following conditions: condenser air 

intake temperature 35°C; chilled water 


the evaporator 5°C. 

14

pressure drop and external static pressure 

Evaporator pressure drop 

Pressure drop calculation 

● The water flow-rate at the exchanger is 

calculated using the following formula: 

G = (QF x 0,86) : ∆T 

• Where: 

G (m 3 /h) = water flow-rate at the exchanger; 

QF (kW) = refrigerating capacity; 

∆T (°C) = temperature differential; 

● The pressure drop can be taken from the 

Rhoss selection software or alternatively 

estimated using the following approximate 

formulae: 

∆pw = ∆pwnom x (G : Gnom) 2 

• Where: 

∆pw (kPa) = pressure drop at the evaporator; 

∆pwnom (kPA) = nominal pressure drop at the 

evaporator (table of “technical specifications”); 

G (m 3 /h) = water flow-rate at the exchanger in 

question; 

Gnom (m 3 /h) = nominal water flow-rate at the 

evaporator (table of “technical specifications”). 

External static pressure calculation 

● The external static pressure values can be taken from the following graphs, with reference to the expected water flows. 

External static pressure TCAVZ 2310÷2670 

with PUMP (P1 - P2) accessory 

250 

230 

∆pr = external static pressure 

G = water flow 

Important note: 

for all the units, refer to the operating limits 

shown on page 17 and the temperature 

differential (∆T) allowed. 

PUMP accessory with single or double pump. 

Maximum admissible pressure 600 kPa. 

ECH 

210 

PD 

190 

P/DP 

170 

150 

2400-2470 P2 

130 

2310-2340 P2 

110 

RI 

RI 

2400-2470 P1 - 2360 P2 

90 

GI 

GI 

70 

50 

2310-2340 P1 

2360 P1 

2500-2670 P1 

2500-2670 P2 

30 

30 40 50 60 70 80 90 100 110 120 130 140 150 160 

C 

FA 


with TANK&PUMP (T&P1 - T&P2) accessory 

250 

230 



TANK&PUMP accessory with single or double 

pump. Maximum admissible pressure 600 kPa. 

ECH 

210 

190 

2310-2340 T&P2 

PD 

P/DP 

VSM 

M 

VS 

170 

150 

130 

SA 

1100 l 

VE 

110 

2360 T&P1 

2310-2340 T&P1 

RI 

RI 

S 

90 

2400-2470 T&P1 - 2360 T&P2 

70 

GI 

GI 

2400-2470 T&P2 

50 

FA 

30 

30 40 50 60 70 80 90 100 

C 


with STE and PUMP (P1 - P2) accessories 

250 

230 

210 

190 

170 

150 

130 

2310-2340 STE P1 



Key 

P = Main circulating pump PN6 - 600 kPa 

(P1 = low pressure, P2 = high pressure) 

DP = Two main circulating pumps, one of which in standby 

PN6 - 600 kPa 

ECH = Plate evaporator 

M = System pressure gauge 

PD = Differential pressure switch 

SA = Storage tank (1100 litre) 

VE = Expansion vessel (24 litre) 

VR = Non-return valve 

VS = Safety valve (setting 600 kPa) 

VSM = Manual air vent valve 

110 

90 

70 

50 

2360 STE P1 

2310-2340 STE P2 

2400-2470 STE P1 - 2360 STE P2 

2400-2470 STE P2 

30 

40 50 60 70 80 90 100 

Components to be fitted by the installer 

C = Fill cock 

FA = Water filter 

GI = Vibration damper attachment 

RI = Shutoff cock 

S = System drain cock 

= Connection by the installer 

15

caratteristiche acustiche 

Table “F”: sound pressure and power TCAVBZ standard version 

MODEL Sound pressure levels in dB by octave band, total sound power level in dB (A) and sound pressure level in dB (A) at different distances 

125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz Lw Lp (1) (*) Lp (10) 

2310 80 76 73 76 72 67 57 97 79 63 

2320 80 76 73 76 72 67 57 97 79 63 

2340 80 76 73 76 72 67 57 97 79 63 

2360 80 76 73 76 72 67 57 97 79 63 

2400 80 76 73 77 74 68 59 98 80 64 

2430 80 76 73 77 74 68 59 98 80 64 

2470 80 76 73 77 74 68 59 98 80 64 

2500 80 76 74 78 75 70 60 98 81 65 

2540 80 76 74 78 75 70 60 98 81 65 

2580 80 76 74 78 75 70 60 98 81 65 

2600 80 76 74 78 75 70 60 98 81 65 

2650 80 76 76 79 75 73 61 99 82 66 

2670 80 76 76 79 75 73 61 99 82 66 

Table “G”: sound pressure and power TCAVSZ silent version 

MODEL Sound pressure levels in dB by octave band, total sound power level in dB (A) and sound pressure level in dB (A) at different distances 

125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz Lw Lp (1) Lp (10) 

2310 65 64 68 70 67 61 51 91 73 57 

2320 65 64 68 70 67 61 51 91 73 57 

2340 65 64 68 70 67 61 51 91 73 57 

2360 65 64 68 70 67 61 51 91 73 57 

2400 65 65 69 71 68 62 52 92 74 58 

2430 65 65 69 71 68 62 52 92 74 58 

2470 65 65 69 71 68 62 52 92 74 58 

2500 65 66 70 72 69 64 52 92 75 59 

2540 65 66 70 72 69 64 52 92 75 59 

2580 65 66 70 72 69 64 52 92 75 59 

2600 65 66 70 72 69 64 52 92 75 59 

2650 65 66 71 72 69 67 54 93 76 60 

2670 65 66 71 72 69 67 54 93 76 60 

Lp = Sound pressure level in dB(A). 

Lw =Total sound power level in dB (A) based 

on measurements made in accordance 

with the UNI EN-ISO 3744 and Eurovent 

8/1 standards. 

(*) For TCAVIZ (soundproofed version) take 

off 2 dB(A). 


● The sound pressure level refers to 

measurements made in an open field at 

different distances from the unit (average 

value measured on 4 sides) with a direction 

factor Q = 2. The distance in metres is shown 

in brackets. 

● The sound pressure values cannot be 

extrapolated for distances less than 10m. 

● With an ambient air temperature below 

around 25°C, or with the FI10 / FI15 for 

outdoor air temperature less than 5°C, the unit 

in chiller mode decreases its sound level to a 

value lower than the nominal value indicated 

in the table. 

16

operating limits and use of antifreeze solutions 

Operating as a chiller 

50 

t max 

40 

35 

10 

5 

0 

-5 

-10 

-15 

FI10 

FI15 

5 6 7 8 9 10 11 12 13 14 15 

MODEL TCAVBZ - 

TCAVIZ - 

TCAVSZ 

TCAVSZ 

2310÷2600 t max = 45°C (1) (2) t max = 43°C (1) (3) 

2650÷2670 t max = 42°C (1) (2) t max = 40°C (1) (3) 

T (°C) = temperature of water produced 

t (°C) = outdoor air temperature (d.b.) 

● Temperature differential at evaporator: 

∆t=3÷8°C. Consider the minimum and 

maximum water flow indicated in the table 

R134a standard operation. 

Operation with condensation control 

(FI10 - FI15). 

Operation, with stepped cooling 

capacity. If the unit is supplied with 

the accessory CCL, the external air 

temperature maximum limit is 45°C. 

We can also provide units on demand to 

supply chilled water at less than 5°C. 

(1) Evaporator water temperature (IN/OUT) 12/7 

(2) Maximum external air temperature for standard operation mode at full load 

(3) Maximum external air temperature for silent operation mode 

Evaporator water flow 

MODEL Min. Max. 

2310 (*) m 3 /h 40 110 

2320 (*) m 3 /h 40 110 

2340 (*) m 3 /h 40 110 

2360 (*) m 3 /h 40 110 

2400 (*) m 3 /h 40 135 

2430 (*) m 3 /h 40 135 

2470 (*) m 3 /h 40 135 

2500 m 3 /h 60 135 

2540 m 3 /h 60 135 

2580 m 3 /h 75 165 

2600 m 3 /h 75 165 

2650 m 3 /h 75 165 

2670 m 3 /h 75 160 

(*) Values referred to acessory shell and tube 

evaporator (STE). 

Use of antifreeze solutions 

The use of ethylene glycol is necessary if the 

user wishes to avoid draining the water from 

the hydraulic circuit during the winter 

shutdown, or if the unit is required to supply 

chilled water at temperatures lower than 4°C. 

The addition of glycol changes the physical 

properties of the water and consequently the 

unit’s performance. 

The proper glycol percentage to be put into 

the system can be determined by selecting 

the most exacting of the operating conditions 

detailed below. 

Anti-freeze protection during 

seasonal shutdown 

● Table shows the multipliers to obtain the 

changes in the unit’s performance according 

to the necessary percentages of ethylene 

glycol. 

● The multipliers refer to the following 

conditions: condenser inlet air temperature 

35°C; chilled water temperature 7°C; water ∆t 

at the evaporator 5°C. 

● For different operating conditions the same 

multipliers can be used since the amount of 

change is negligible. 

● A trace electrical heater (accessory RA) 

reduces the freezing risk during winter 

shutdowns. 

Table “H”: TCAVBZ-TCAVIZ-TCAVSZ 2310 ÷ 2670 

Minimum ambient air temp. °C 2 0 –3 –6 –10 –15 –20 

% glycol in weight 10 15 20 25 30 35 40 

Freezing temperature °C –5 –7 –10 –13 –16 –20 –25 

fc G 1,025 1,039 1,054 1,072 1,093 1,116 1,140 

fc ∆pw 1,085 1,128 1,191 1,255 1,319 1,383 1,468 

fc QF 0,975 0,967 0,963 0,956 0,948 0,944 0,937 

fc P 0,993 0,991 0,990 0,988 0,986 0,983 0,981 

fc G = correction factor for glycol water 

flow to the evaporator 

fc ∆pw = correction factor for pressure drops 

through the evaporator 

fc QF 

fc P 

= correction factor for cooling capacity 

= correction factor for total power 

consumption 

17

TCAVBZ-TCAVIZ 2310 ÷ 2430 

ACCESSORIES DS and RC100: performances and pressure drops 

MODEL TCAVBZ - TCAVIZ 2310 2320 



RC100 - 100% recuperator 

Inlet/outlet water temperature °C 35/40 (**) 40/45 (*) 45/50 (**) 35/40 (**) 40/45 (*) 45/50 (**) 

Nominal heating capacity(•) kW 408 401 393 434 426 418 

Recuperator nominal water flow m 3 /h 71,0 69,9 69,9 75,4 74,2 74,3 

Recuperator nominal pressure drops kPa 57 56 56 64 62 62 

Recuperator water contents L 38 38 38 38 38 38 

DS - Desuperheater 

Inlet/outlet water temperature °C 40/50 (***) 50/60 (***) - 40/50 (***) 50/60 (***) - 

Nominal heating capacity(•) kW 63 37 - 69 41 - 

Recuperator nominal water flow m 3 /h 5,6 3,2 - 6,1 3,6 - 

Recuperator nominal pressure drops kPa 8 3 - 10 4 - 

Recuperator water contents L 9 9 - 9 9 - 















Recuperator water contents L 9 9 - 10,5 10,5 - 
















(•) Heating capacity with recuperator and 

desuperheater fouling factor of 0,35x10 -4 m 2 

K/W. 

(*) Conditions refer to the unit complete with 

condensation control (FI10) with standard 

setting and chilled water temperature 7°C, 

with evaporator temperature differential 5 K. 

(**) Conditions refer to the unit complete with 

condensation control (FI10) with the 

appropriate setting (expressly requested at 

the time of ordering) and chilled water 

temperature 7°C, with evaporator temperature 

differential 5 K. 

(***) Conditions refer to the unit with chilled 

water temperature 7°C, with evaporator 

temperature differential 5 K. 

Operating limits: 

● RC100: 

• temperature of hot water produced 35÷50°C 

with permitted water temperature differential 

4÷6 K. 

• the minimum permitted inlet water 

temperature is 30°C. 

• If the unit is equipped with the accessory 

and RC100 the FI10 accessory must be used. 

● DS: 

• temperature of hot water produced 45÷ 

60°C with permitted water temperature 

differential 5÷10 K. 



ATTENTION! 

Units fitted with a heat recovery placed in 

series with the compressor must be used in 

compliance with current local laws. 

Hot water for domestic use can be produced 

only with the use of an additional heat 

exchanger which is suited to the purpose. 

Refer to current laws and standards in the 

place of installation. 

18

TCAVBZ-TCAVIZ 2470 ÷ 2650 



































RC100 - Recuperatore 100% 














K/W. 















● RC100: 



4÷6 K. 





● DS: 






ATTENTION! 









19

TCAVBZ-TCAVIZ 2670 


MODEL TCAVBZ - TCAVIZ 2670 




Inlet/outlet water temperature °C 35/40 (**) 40/45 (*) 45/50 (**) 

Nominal heating capacity(•) kW 882 872 863 

Recuperator nominal water flow m 3 /h 153,4 151,9 153,3 

Recuperator nominal pressure drops kPa 55 54 55 

Recuperator water contents L 76 76 76 


Inlet/outlet water temperature °C 40/50 (***) 50/60 (***) - 

Nominal heating capacity(•) kW 141 84 - 

Recuperator nominal water flow m 3 /h 12,4 7,4 - 

Recuperator nominal pressure drops kPa 8 3 - 

Recuperator water contents L 16 16 - 



K/W. 















● RC100: 



4÷6 K. 





● DS: 






ATTENTION! 









20

TCAVSZ 2310 ÷ 2430 


MODEL TCAVSZ 2310 2320 





























Recuperator water contents L 9 9 - 10,5 10,5 - 


















K/W. 















● RC100: 



4÷6 K. 





● DS: 






ATTENTION! 









21

TCAVSZ 2310 ÷ 2430 

















































K/W. 















● RC100: 



4÷6 K. 





● DS: 






ATTENTION! 









22

TCAVSZ 2670 


MODEL TCAVSZ 2670 




Inlet/outlet water temperature °C 35/40 (**) 40/45 (*) 45/50 (**) 

Nominal heating capacity(•) kW 882 872 863 

Recuperator nominal water flow m 3 /h 153,4 151,9 153,3 

Recuperator nominal pressure drops kPa 55 54 55 

Recuperator water contents L 76 76 76 


Inlet/outlet water temperature °C 40/50 (***) 50/60 (***) - 

Nominal heating capacity(•) kW 142 87 - 

Recuperator nominal water flow m 3 /h 12,5 7,6 - 

Recuperator nominal pressure drops kPa 8 3 - 

Recuperator water contents L 16 16 - 



K/W. 















● RC100: 



4÷6 K. 





● DS: 






ATTENTION! 









23

TCAVBZ - TCAVIZ - TCAVSZ 2310 - 2320 - 2340 - 2360: 

overall dimensions and installation clearances 

TCAVBZ - TCAVIZ - TCAVSZ 2310 - 2320 - 2340 - 2360. Model with plate exchanger. 

1 

2 3 

5 

9 10 

7 

15 

11 

16 

13 

8 

14 

4 

c 

6 

f 

12 

g 

h 

e 

d 

b 

e 

l 

p 

m 

a 

q 

n 

r 

o 

i 

i 

1. Electric panel 

2. Electrical panel 

3. Fan 

4. Power input 

5. Main isolator switch 

6. Hoisting hook 

7. Pressure gauges and pressure switches 

8. Compressor 

9. Coil 

10. Coil protection grille (accessory) 

11. Lower compartment protection grilles 

(accessory) 

12. Vibration damper (accessory) 

13. Evaporator water inlet “Victaulic fittings” 

14. Evaporator water outlet “Victaulic fittings” 

15. Electronic expansion valve 

16. Soundproofing TCAVIZ 

MODEL 2310 2320 2340 2360 

Dimensions 

a mm 3830 3833 3830 3830 

b mm 2260 2260 2260 2260 

c mm 2430 2430 2430 2430 

d mm 2100 2100 2100 2100 

e mm 60 60 60 60 

f (*) mm 100 100 100 100 

g mm 836 836 836 836 

h mm 313 313 313 313 

i mm 1113 1113 1113 1113 

l mm 356 356 356 356 

m mm 1100 1100 1100 1100 

n mm 1650 1650 1650 1650 

o mm 356 356 356 356 

p mm 1306 1306 1306 1306 

q mm 1670 1670 1670 1670 

r mm 486 486 486 486 

Evaporator inlet/outlet water connections DN80 DN80 DN80 DN80 

(*) The dimensions are approximate for the 

presence of a a leveling jack on the 

antivibration mounting. 

ATTENTION! 

The desuperheater(DS) and heat recovery 

(RC100) accessories were not dimensioned 

because the data is subject to evaluation and 

modification by our technical office. 

Contact our pre-sales office for any further 

information. 

24



TCAVBZ - TCAVIZ - TCAVSZ 2310 - 2320 - 2340 - 2360. Model with shell and tube evaporator (STE accessory). 

1 

2 3 

5 

9 

10 

16 

7 

11 

13 

4 

c 

8 

14 

15 

6 

f 

12 

g 

e 

d 

b 

e 

p 

m 

q 

n 

h i l 

a 

r 

o 



3. Fan 





8. Compressor 

9. Coil 



(accessory) 






MODEL 2310 2320 2340 2360 

Dimensions 

a mm 3830 3830 3830 3830 

b mm 2260 2260 2260 2260 

c mm 2430 2430 2430 2430 

d mm 2100 2100 2100 2100 

e mm 60 60 60 60 

f (*) mm 100 100 100 100 

g mm 471 471 471 471 

h mm 371 371 371 371 

i mm 2150 2150 2150 2150 

l mm 941 941 941 941 

m mm 356 356 356 356 

n mm 2750 2750 2750 2750 

o mm 356 356 356 356 

p mm 526 526 526 526 

q mm 2450 2450 2450 2450 

r mm 486 486 486 486 





ATTENTION! 






information. 

25

TCAVBZ - TCAVIZ - TCAVSZ 2400 - 2430 - 2470: 


TCAVBZ - TCAVIZ - TCAVSZ 2400 - 2430 - 2470. Model with plate exchanger. 

1 

2 5 

3 

9 10 

15 

7 

6 

11 

16 

13 

8 

14 

4 

c 

g 

12 

f 

h 

e 

d 

e 

p 

q 

r 

i 

i 

b 

l 

m 

n 

o 

a 



3. Fan 





8. Compressor 

9. Coil 



(accessory) 






MODEL 2400 2430 2470 

Dimensions 

a mm 4830 4830 4830 

b mm 2260 2260 2260 

c mm 2430 2430 2430 

d mm 2100 2100 2100 

e mm 60 60 60 

f (*) mm 100 100 100 

g mm 836 836 836 

h mm 313 313 313 

i mm 1113 1113 1113 

l mm 806 806 806 

m mm 2000 2000 2000 

n mm 850 850 850 

o mm 806 806 806 

p mm 1656 1656 1656 

q mm 2051 2051 2051 

r mm 755 755 755 

Evaporator inlet/outlet water connections DN80 DN80 DN80 




ATTENTION! 






information. 

26

TCAVBZ - TCAVIZ - TCAVSZ 2400 - 2430 - 2470: 


TCAVBZ - TCAVIZ - TCAVSZ 2400 - 2430 - 2470. Model with shell and tube evaporator (STE accessory). 

1 

2 3 

5 8 10 

16 

7 

9 

11 

14 

13 

6 

4 

c 

f 

12 

g 

15 

e 

d 

e 

p 

q 

r 

b 

m 

n 

o 

h i l 

a 



3. Fan 





8. Compressor 

9. Coil 



(accessory) 






MODEL 2400 2430 2470 

Dimensions 

a mm 4830 4830 4830 

b mm 2260 2260 2260 

c mm 2430 2430 2430 

d mm 2100 2100 2100 

e mm 60 60 60 

f (*) mm 100 100 100 

g mm 471 471 471 

h mm 996 996 996 

i mm 2400 2400 2400 

l mm 1066 1066 1066 

m mm 806 806 806 

n mm 2850 2850 2850 

o mm 806 806 806 

p mm 1204 1204 1204 

q mm 1204 1204 1204 

r mm 2503 2503 2503 

s mm 755 755 755 

Evaporator inlet/outlet water connections DN125 DN125 DN125 




ATTENTION! 






information. 

27



TCAVBZ - TCAVIZ - TCAVSZ 2500 - 2540 - 2580 - 2600. Model with shell and tube evaporator. 

1 

2 3 

5 9 13 

10 16 

7 

11 

8 

14 

6 

4 

c 

15 

12 

f 

12 

g 

e 

d 

b 

e 

m 

q 

n 

r 

o 

s 

p 

h i l 

a 



3. Fan 





8. Compressor 

9. Coil 



(accessory) 






MODEL 2500 2540 2580 2600 

Dimensions 

a mm 5830 5830 5830 5830 

b mm 2260 2260 2260 2260 

c mm 2430 2430 2430 2430 

d mm 2100 2100 2100 2100 

e mm 60 60 60 60 

f (*) mm 100 100 100 100 

g mm 426 426 426 426 

h mm 746 746 746 746 

i mm 2412 2412 2412 2412 

l mm 2304 2304 2304 2304 

m mm 806 806 806 806 

n mm 1925 1925 1925 1925 

o mm 1925 1925 1925 1925 

p mm 806 806 806 806 

q mm 1656 1656 1656 1656 

r mm 3430 3430 3430 3430 

s mm 376 376 376 376 





ATTENTION! 






information. 

28

TCAVBZ - TCAVIZ - TCAVSZ 2650 - 2670: 


TCAVBZ - TCAVIZ - TCAVSZ 2650 - 2670. Model with shell and tube evaporator. 

1 

2 3 5 9 10 

7 

13 16 

11 

8 

4 

c 

14 

15 

6 

f 

12 

g 

e 

d 

b 

e 

m 

r 

n 

s 

t 

o p q 

h i l 

a 



3. Fan 





8. Compressor 

9. Coil 



(accessory) 






MODEL 2650 2670 

Dimensions 

a mm 6680 6680 

b mm 2260 2260 

c mm 2430 2430 

d mm 2100 2100 

e mm 60 60 

f (*) mm 100 100 

g mm 426 426 

h mm 746 746 

i mm 2412 2412 

l mm 3454 3454 

m mm 1456 1456 

n mm 1650 1650 

o mm 1650 1650 

p mm 1650 1650 

q mm 206 206 

r mm 1976 1976 

s mm 3760 3760 

t mm 876 876 

Evaporator inlet/outlet water connections DN150 DN150 




ATTENTION! 






information. 

29


Clearances TCAVBZ-TCAVIZ-TCAVSZ 2310 ÷ 2670 

L1 

L4 

L3 

L2 

Installation 

● The unit features Victaulic fittings on the 

air-conditioning system water inlet and outlet 

and on the inlets and outlets to the heat 

recovery/desuperheaters, as well as welded 

carbon steel stubs. 

● The unit should be installed observing the 

minimum clearances recommended in figure, 

considering access to the hydraulic and 

electrical connections. 

● The unit can be fitted on antivibration 

mountings, supplied upon request (KSA and 

KSAM). 

● It is recommended to install air vent valves, 

on-off valves that isolate the unit from the rest 

of the system, and a filter. with a low pressure 

drop on the water inlet to the chiller or heat 

pump. 


● The space above the unit must be free of obstacles. If the unit is completely surrounded by 

walls, the distances indicated are still valid, as long as at least two adjacent walls are no higher 

than the unit itself. The minimum space allowed in height between the top of the unit and any 

obstacle must not be less than 3.5m. 

● If a series of units are installed together, the minimum space between the finned coils must 

not be less than 2,5 m. 

● For further information contact RHOSS sales support service. 

MODEL L1 L2 L3 L4 

2310 ÷ 2470 mm 1800 1500 1800 1500 

2310 ÷ 2470 STE (*) mm 1800 1500 2000 3500 (**) 

2500 ÷ 2670 mm 1800 1500 2000 3500 (**) 

(*) Accessory shell and tube evaporator (STE). 

(**) Maximum distance in order to remove the shell 

and tube exchanger. 

TCAVBZ-TCAVIZ-TCAVSZ 2310 ÷ 2670 

Lifting and handling 

● The unit must be handled and lifted up with 

care, so as to avoid damage to the external 

structure and to the mechanical and electrical 

parts on the inside. 

The unit should be moved and/or lifted by the 

specially provided lifting-points in the base 

framework. Use chains of lengths suitable to 

ensure stable lifting. 

30

weight distribution between the fixing points 

KSAM - Antivibration mountings 

models TCAVBZ-TCAVIZ-TCAVSZ 2310 ÷ 2670 

HF 

E 

D 

H 

G 

F 

E 

Top view 

Top view 

A B C 

A B C D 

TCAVBZ 2310 ÷ 2670 

MODEL 2310 2320 2340 2360 2400 2430 2470 2500 2540 2580 2600 2650 2670 

Empty weight (*) kg 3420 3490 3500 3580 3920 4100 4280 4760 4780 4800 4820 5160 5210 

Weight (**) kg 3485 3555 3565 3656 3996 4182 4362 5016 5036 5050 5070 5410 5460 

Support point (**) 

A kg 939 963 966 974 850 900 919 1185 1189 1193 1197 548 553 

B kg 526 546 546 553 731 780 800 842 846 848 851 671 677 

C kg 264 279 277 283 404 445 462 482 484 485 487 733 740 

D kg 306 307 308 328 438 452 489 506 508 510 512 740 747 

E kg 544 547 549 573 734 750 793 844 847 849 853 742 748 

F kg 906 913 919 945 839 855 899 1157 1162 1165 1170 736 743 

G kg - - - - - - - - - - - 678 684 

H kg - - - - - - - - - - - 562 568 

TCAVIZ - TCAVSZ 2310 ÷ 2670 

MODEL 2310 2320 2340 2360 2400 2430 2470 2500 2540 2580 2600 2650 2670 

Empty weight (*) kg 3720 3790 3800 3880 4220 4400 4580 5060 5080 5100 5120 5460 5510 

Weight (**) kg 3785 3855 3865 3956 4296 4482 4662 5316 5336 5350 5370 5710 5760 

Support point (**) 

A kg 1024 1048 1051 1059 935 985 1004 1270 1274 1278 1282 621 626 

B kg 589 609 609 616 794 843 863 905 909 911 914 744 750 

C kg 266 281 279 285 406 447 464 484 486 487 489 736 743 

D kg 308 309 310 330 440 454 491 508 510 512 514 741 748 

E kg 607 610 612 636 797 813 856 907 910 912 916 743 749 

F kg 991 998 1004 1030 924 940 984 1242 1247 1250 1255 739 746 

G kg - - - - - - - - - - - 751 757 

H kg - - - - - - - - - - - 635 641 

(*) The weight includes the accessories RPE and KRP. 

(**) The weight and its distribution in support points includes the accessories RPE and KRP and the amount of water contained in the heat 

exchanger. For TANK & PUMP versions, the weight includes the buffer tank water (1100 litre). 

N.B.: 

With the accessories RC100, DS and PUMP the weight of the unit must be added to the weight of the accessory indicated in the tables below. 

The weight of the TANK&PUMP version includes the weight of PUMP accessory. 

Pump accessory weights 

MODEL 2310 2320 2340 2360 2400 2430 2470 2500 2540 2580 2600 2650 2670 

Weight kg 120 120 120 120 130 130 130 230 230 230 230 230 230 

RC100 - Weights 100% recuperators 

MODEL 2310 2320 2340 2360 2400 2430 2470 2500 2540 2580 2600 2650 2670 

Weight kg 550 550 550 550 600 600 600 530 530 530 530 530 530 

DS - Weights desuperheaters 

MODEL 2310 2320 2340 2360 2400 2430 2470 2500 2540 2580 2600 2650 2670 

Weight kg 140 140 140 140 160 160 160 220 220 220 220 220 220 

31

weight distribution between the fixing points 

with TANK&PUMP accessory 



with STE accessory 



HF 

E 

D 

HD 

C 

Top view 

Top view 

A B C 

A 

B 

TCAVBZ 2310 ÷ 2470 


MODEL 2310 2320 2340 2360 2400 2430 2470 

Empty weight (*) kg 3930 4000 4010 4090 4470 4650 4830 

Weight (**) kg 5095 5165 5175 5266 5646 5832 6012 

Support point 

A kg 848 869 873 882 641 658 712 

B kg 852 871 871 878 886 1201 955 

C kg 787 803 802 808 1221 1185 1279 

D kg 828 831 832 852 1234 1177 1283 

E kg 890 895 897 920 939 907 998 

F kg 890 896 900 926 725 704 785 

TCAVBZ 2310 ÷ 2470 


MODEL 2310 2320 2340 2360 2400 2430 2470 


Weight (**) kg 3501 3561 3631 3641 4053 4233 4403 

Support point 

A kg 828 842 859 861 1093 1142 1187 

B kg 918 933 952 954 926 967 1006 

C kg 917 933 951 954 942 983 1023 

D kg 838 853 869 872 1092 1141 1187 



MODEL 2310 2320 2340 2360 2400 2430 2470 


Weight (**) kg 5395 5465 5475 5566 5946 6132 6312 

Support point 

A kg 933 954 958 967 726 743 797 

B kg 915 934 934 941 949 1264 1018 

C kg 789 805 804 810 1223 1187 1281 

D kg 830 833 834 854 1236 1179 1285 

E kg 953 958 960 983 1002 970 1061 

F kg 975 981 985 1011 810 789 870 



MODEL 2310 2320 2340 2360 2400 2430 2470 


Weight (**) kg 3801 3861 3931 3941 4353 4533 4703 

Support point 

A kg 903 917 934 936 1168 1217 1262 

B kg 993 1008 1027 1029 1001 1042 1081 

C kg 992 1008 1026 1029 1017 1058 1098 

D kg 913 928 944 947 1167 1216 1262 

(*) The weight includes the accessories RPE and KRP. 

(**) The weight and its distribution in support points includes the accessories RPE and KRP and the amount of water contained in the heat 

exchanger. For TANK & PUMP versions, the weight includes the buffer tank water (1100 litre). 

N.B.: 

With the accessories RC100, DS and PUMP the weight of the unit must be added to the weight of the accessory indicated in the tables below. 

The weight of the TANK&PUMP version includes the weight of PUMP accessory. 

Pump accessory weights 

MODEL 2310 2320 2340 2360 2400 2430 2470 

Weight kg 120 120 120 120 130 130 130 

RC100 - Weights 100% recuperators 

MODEL 2310 2320 2340 2360 2400 2430 2470 

Weight kg 550 550 550 550 600 600 600 

DS - Weights desuperheaters 

MODEL 2310 2320 2340 2360 2400 2430 2470 

Weight kg 140 140 140 140 160 160 160 

32

electrical connections 

G 

10.1 

MI 

L1 

L2 400V-3ph-50Hz 

L3 

PE 

ME 

AG 

Electrical connections 

● The electric panel (IP55) is accessible from 

the front panel of the unit. 

● The connections must be carried out in 

accordance with the regulations in force and 

the electrical wiring diagrams included with 

the machine. 

● Earthing of the machine is compulsory by 

law. 

● Always install the unit in a sheltered area, 

and near the machine place an automatic 

main switch, or fuses, of suitable capacity and 

breaking power. 

N 

12.1 

N 

12.2 

G 

12.3 

G 

12.4 

12.5 

12.6 

12.7 

12.8 

N 

12.9 

N 

12.10 

ATTENTION! 

The above diagrams only show the 

connections to be made by the installer. 

CKP1 

CKP2 (*) 

SCR 

SDS 

LFC1 

LFC2 

LBG1 

LBG2 

MI 

ME 

AG 

CKP 

LBG 

= Internal terminal board 

= External terminal board 

= General alarm 

= Evaporator pump wiring harness 

(230 VAC voltage signal) 

= General lockout warning lamp (max 

supply 230 VAC) 

LBG1 = General lockout warning lamp - 

compressor 1 (230 VAC supply 

consent) 

LBG2 = General lockout warning lamp - 

compressor 2 (230 VAC supply 

consent) 

LFC 

= Warning lamp: compressor 

operating (max supply 230 VAC) 

LFC1 = Warning lamp: compressor 1 


LFC2 = Warning lamp: compressor 2 


L 

PE 

SCR 

SDS 

= Line 

= Earth connection 

= Remote control selector (clean 

contact control) 

= Double set-point selector (clean 

contact control) 

= Connection to be made by the 

installer 

(*) If double pump accessory is provided 

MODEL 2310 2320 2340 2360 2400 2430 2470 2500 2540 2580 2600 2650 2670 


Line section mm 2 185 185 185 240 240 240 240 300 300 400 400 400 400 

PE section mm 2 95 95 95 120 120 120 120 150 150 185 185 185 185 

Remote control line section mm 2 1,5 1,5 1,5 1,5 1,5 1,5 1,5 1,5 1,5 1,5 1,5 1,5 1,5 

Max. absorbed current TCAVBZ-TCAVIZ A 284 299 314 341 376 386 396 424 444 470 496 504 504 

Starting current TCAVBZ-TCAVIZ A 313 347 362 423 458 522 532 583 603 603 629 637 637 

Max. absorbed current TCAVSZ A 284 299 314 341 376 386 396 424 444 470 496 504 504 

Starting current TCAVSZ A 304 338 353 414 446 510 520 568 588 588 614 619 619 

Standard pressure pumps (P1) - electrical data 

MODEL 2310 2320 2340 2360 2400 2430 2470 2500 2540 2580 2600 2650 2670 

Electric pump 

Power supply V-ph-Hz 400-3-50 

Absorbed power kW 3 3 3 3 4 4 4 5,5 5,5 5,5 5,5 5,5 5,5 

Absorbed current A 6 6 6 6 8 8 8 11,5 11,5 11,5 11,5 11,5 11,5 

High pressure pumps (P2) - electrical data 

MODEL 2310 2320 2340 2360 2400 2430 2470 2500 2540 2580 2600 2650 2670 

Electric pump 

Power supply V-ph-Hz 400-3-50 

Absorbed power kW 4 4 4 4 5,5 5,5 5,5 7,5 7,5 7,5 7,5 7,5 7,5 

Absorbed current A 8 8 8 8 10 10 10 15,5 15,5 15,5 15,5 15,5 15,5 

33

NOTES

TCAVZ 2310÷2670 

Z-Power range 

RHOSS S.P.A. 

Via Oltre Ferrovia, 32 - 33033 Codroipo (UD) - Italy 

tel. +39 0432 911611 - fax +39 0432 911600 

rhoss@rhoss.it - www.rhoss.it - www.rhoss.com 

IR GROUP S.A.S. 

7 rue du Pont à Lunettes - 69390 Vourles - France 

tél. +33 (0)4 72318631 - fax +33 (0)4 72318630 

exportsales@rhoss.it 

RHOSS Deutschland GmbH 

Hölzlestraße 23, D-72336 Balingen, OT Engstlatt - Germany 

tel. +49 (0)7433 260270 - fax +49 (0)7433 2602720 

info@rhoss.de - www.rhoss.de 

RHOSS MERCOSUR 

Benjamin Constant 576 - 1er Piso C.P. 1214 - Asuncion Paraguay 

tel/fax +595 21 493 897 - www.rhossmercosur.com 

Sedi commerciali Italia: / Italy branch offices: 

Area Nord-Est: 33033 Codroipo (UD) - Via Oltre Ferrovia, 32 

tel. +39 0432 911611 - fax +39 0432 911600 

Area Nord-Ovest: 20041 Agrate Brianza (MI) 

Centro Colleoni - Palazzo Taurus, 1 

tel. +39 039 6898394 - fax +39 039 6898395 

Area Centro-Sud: 00199 Roma - Viale Somalia, 109 

tel. +39 06 8600699-707 - fax +39 06 8600747 

Area Sud: 80143 Napoli - Via G. Porzio - Centro Direzionale - Isola G8 

tel. +39 081 7879121 - fax +39 081 7879135 

RHOSS S.P.A. declines all responsabilities for 

possible mistakes in the catalogue and reserves the 

right to alter the features of their products without 

notice in the interests of continuous improvement. 

K20301EN ed.2 

07.08 - 0.000 - Stampa:

English version - Rhoss

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