Air cooled liquid chillers and reverse cycle air/water heat pumps ...

Air cooled liquid chillers and reverse cycle air/water heat pumps
Range: from 34 kW to 262 kW
• R410A refrigerant
• Scroll compressors
• Part load efficiency
• Range flexibility
• IDRORELAX Network Unit

Climaveneta presents its new NECS (New Evolution Climaveneta System) range of chillers (heat pumps)
fitted with R410A rotary scroll compressors.
The range comprises one-circuit versions with due compressors and two-circuit versions with four
compressors.
Consistently with corporate culture, the NECS series exploits cutting-edge technology to achieve
extremely high levels of quality, focusing on maximum energy efficiency and minimum noise emissions.
WHY R410A
Though R410A is a blend, it behaves just like a pure gas and
features a negligible temperature glide. Thanks to its outstanding
heat conductivity, R410A contributes towards achieving elevated
system efficiency.
R410A is also an ecological gas, both because its elevated
efficiency reduces electricity consumption and, consequently,
CO 2 , emissions and because it does not damage
the ozone layer (ODP = 0).
The scroll compressor has been expressly redesigned
for use with the new gas and is now even more compact
and silent than before.
NECS, THE CLIMAVENETA R410A RANGE
Scroll compressors,
featuring high efficiency,
low vibrations and
low noise emissions.
R410A refrigerant,
thanks to its enhanced heat
conductivity compared with R407C
and the generous sizing of the
heat exchange surfaces of the
units, this refrigerant has
considerably increased the EER
and ESEER energy indices.
Part load efficiency,
part load efficiency has been improved
(ESEER > 4.3) in the new single-circuit,
dual-compressor version, with a 35%
saving in seasonal electricity consumption
compared with the previous R407C
version.
ESEER
Range flexibility,
the Climaveneta range has been designed
to satisfy a wide variety of needs.
For this reason, a good
16 sizes and up to 5
versions are
available in
the 34-262
kW range.
New controller, all the units can be connected
to the new W3000 controller featuring a “user
friendly” interface.
Main functions:
QuickMind, local and
remote FWS supervision,
and dual setpoint
management confirm
Climaveneta's
commitment to
continually developing its
electronics technology.
IDRORELAX,
the NECS range of
chillers is available
in the –IR configuration. This allows interfacing with
the IDRORELAX system.

INTEGRATED HYDRONIC UNIT (Optional).
Compact PLUG and PLAY units.
NECS has been designed to reduce installation work to a minimum.
The integrated hydronic unit incorporates all the hydraulic components, thus optimising installation space,
time and costs.
The integrated hydronic unit comprises:
• storage tank
• circulation pump with composite impeller
• pre-mounted Y-shaped water filter with stainless steel mesh
• water flow switch
• pump inlet pressure gauge
• output flow adjustment valve
• safety valve
• expansion tank
• air vent
• water drain.
A circulation pump with a two-pole electric motor and an elevated useful static head is available
for all sizes.
Pumps with a low useful static head and a 2- or 4-pole electric motor are available for units with four
compressors (NECS xxx4) in order to more fully adapt the unit to system requirements in terms of flow
rate/head. On request, the hydronic assembly can be supplied with two circulation pumps, one of which
backing up the other, featuring a programmed rotation schedule and automatic swap-over should the
working pump fail.
In this case, the hydronic assembly is fitted with a check valve in order to ensure the unit is installed and
operated correctly.
Hydronic unit rendering

Comparison between NECS and traditional
R407C units - Range from 34 to 262 kW
The energy efficiency (EER) of these
Climaveneta units is further enhanced thanks
to the fact that the design of the heat
exchange surfaces, coils and plate exchangers
was focused on minimising running costs.
As well as achieving an EER close to 2.9,
this design focus achieves very high levels
of reliability and lengthens the working
life of the compressor.
EER
2,90
2,85
2,80
2,75
2,7
2,65
2,60
2,81
2,63
2,75
2,61
2,80
2,82
2,77
+ 10%
R407C unit
2,89
2,60 2,60
2,55
2,58
2,54
2,50
ELEVATED PERFORMANCE AT ESEER PART LOADS
Increasingly closer attention is being paid towards
the power consumption of air-conditioning
equipment, both at national and European level.
An installed chiller reduces rated energy for
extremely short periods of time, while most of the
energy is produced with part loads ranging
between 50% and 75%.
The ESEER parameter proposed by Eurovent, takes
part load operating conditions into account when
assessing unit efficiency.
It should be pointed out that units are only
required to deliver 100% of their rated cooling
power for 1.4% of their total running time,
according to European calculations, and just 0.5%
according to American calculations (IPLV).
In these conditions, the energy produced by a unit
accounts for respectively 3% and just 1% of the
total energy produced during its working life.
load - energy %
125
100
75
50
25
0
ESEER
carico
peso
18 20 22 24 26 28 30 32 34 36
IPLV (American)
carico
peso
12 14 16 18 20 22 24 26 28 30 32 34 36
external air temperature (°C)
external air temperature (°C)
ESEER
IPLV (American)
Load Air temp. Time Energy Air temp. Time Energy
100 % 35 °C 1,4 % 3 % 35 °C 0,5 % 1 %
75 % 30 °C 19,9 % 33 % 26,7 °C 28,7 % 42 %
50 % 25 °C 37,1 % 41 % 18,3 °C 46,2 % 45 %
25 % 20 °C 41,6 % 23 % 12,8 °C 24,6 % 12 %
Energy = percentage of total power produced in the various load conditions
ESEER values of the new NECS units
ESEER = Energy 100% * EER 100% + Energy 75% * EER 75% + Energy 50% * EER 50% + Energy 25% * EER 25%
SINGLE-CIRCUIT
NECS 302LN
R410A UNIT
EER 100% 2,59
EER 75% 3,59
EER 50% 4,45
EER 25% 4,39
TRADITIONAL TWO-CIRCUIT
R407C UNIT
WITH TWO SCROLL COMPRESSORS
2,44 EER 100%
2,71 EER 75%
3,21 EER 50%
3,27 EER 25%
ESEER 4,10
3,04 ESEER

NECS 0152-1004 Ver. 0152 0182 0202 0252 0302 0352 0412
B 38,1 45,1 50,5 57,0 76,0 86,8 96,9
Cooling capacity (1) LN 36,1 42,8 50,7 57,6 74,2 84,4 96,4
SL 33,8 42,3 47,8 55,5 69,9 85,4 96,8
B 14,4 15,6 19,1 21,5 27,8 31,9 36,3
Total power input (1) LN 15,0 16,5 18,9 21,3 28,6 33,6 37,1
SL 16,3 17,0 20,3 22,6 30,8 33,6 37,4
B 2,65 2,89 2,65 2,65 2,73 2,72 2,67
Total EER LN 2,40 2,60 2,68 2,71 2,59 2,51 2,60
SL 2,07 2,49 2,35 2,46 2,27 2,54 2,59
B 4,03 4,27 4,21 4,14 4,13 4,31 4,16
ESEER LN 4,03 4,18 4,23 4,20 4,10 4,03 4,00
SL 3,77 3,92 4,01 3,93 3,85 3,91 3,89
B 84 84 84 84 85 86 86
Sound power level (3) LN 79 79 80 80 81 83 83
SL 76 77 77 78 78 81 81
B 52 52 52 52 53 54 54
Sound pressur level (4) LN 47 47 48 48 49 51 51
SL 44 45 45 46 46 49 49
NECS-N 0152-1004 Ver. 0152 0182 0202 0252 0302 0352 0412
B 37,7 42,8 47,9 57,5 72,0 82,5 93,9
Cooling capacity (1) LN 35,8 42,0 48,0 54,6 73,2 83,5 93,9
SL - - - - - - -
B 13,6 15,7 19,2 20,4 28,0 32,0 36,0
Total power input (1) LN 14,3 16,2 19,1 21,3 27,2 32,0 36,0
SL - - - - - - -
B 42,6 47,8 53,8 64,8 80,6 92,9 105
Heating capacity (2) LN 41,6 47,9 53,7 63,2 83,6 95,6 108
SL - - - - - - -
B 14,2 15,6 18,1 21,2 26,1 29,8 33,9
Total power input (2) LN 13,8 15,3 18,1 20,7 26,0 30,4 34,2
SL - - - - - - -
B 2,99 3,07 2,97 3,06 3,09 3,12 3,09
Total COP LN 3,01 3,14 2,97 3,06 3,21 3,14 3,17
SL - - - - - - -
B 84 84 84 84 85 86 86
Sound power level (3) LN 79 79 80 80 81 83 83
SL - - - - - - -
B 52 52 52 52 53 54 54
Sound pressure level (4) LN 47 47 48 48 49 51 51
SL - - - - - - -
NECS 0152-1004
Dim. (5) Ver. 0152 0182 0202 0252 0302 0352 0412 0452 0512 0504 0524
B 1695 1695 1695 1695 2195 2195 2745 2745 3245 3110 3110
A LN 1695 1695 2195 2195 2745 2745 2745 2745 3245 3110 3110
SL 1695 2195 2195 2745 2745 3245 3245 3245 3245 3110 3110
B 1120 1120 1120 1120 1120 1120 1120 1120 1120 2220 2220
B LN 1120 1120 1120 1120 1120 1120 1120 1120 1120 2220 2220
SL 1120 1120 1120 1120 1120 1120 1120 1120 1120 2220 2220
B 1420 1420 1420 1420 1420 1420 1420 1420 1620 1700 1700
H LN 1420 1420 1420 1420 1420 1620 1620 1620 1620 1700 1700
SL 1420 1420 1420 1420 1420 1620 1620 1620 1620 1700 2150
B 370 410 410 420 620 650 730 780 930 1230 1450
Operating
LN 370 410 460 490 660 720 790 820 930 1230 1450
weight
SL 390 450 480 540 700 780 860 910 940 1360 1570
NECS-N 0152-1004
Dim. (5) Ver. 0152 0182 0202 0252 0302 0352 0412 0452 0512 0504 0524
B 1695 1695 1695 2195 2195 2195 2745 2745 3245 3110 3110
A LN 1695 1695 2195 2195 2745 2745 2745 2745 3245 3110 3110
SL - - - - - - - - - 3110 3110
B 1120 1120 1120 1120 1120 1120 1120 1120 1120 2220 2220
B LN 1120 1120 1120 1120 1120 1120 1120 1120 1120 2220 2220
SL - - - - - - - - - 2220 2220
B 1420 1420 1420 1420 1420 1420 1420 1420 1620 1700 1700
H LN 1420 1420 1420 1420 1420 1620 1620 1620 1620 1700 1700
SL - - - - - - - - - 1700 2150
B 400 410 420 500 630 690 770 850 950 1380 1570
Operating
LN 400 420 460 500 710 770 830 880 990 1380 1570
weight
SL - - - - - - - - - 1460 1700

0452 0512 0504 0524 0604 0704 0804 0904 1004
112 127 113 136 154 177 200 223 255
109 122 104 129 147 167 187 208 242
106 118 113 130 147 162 193 211 235
39,7 43,8 45,6 53,8 59,7 68,1 74,9 84,2 94,1
41,4 46,0 47,9 53,5 60,0 69,6 77,6 87,8 95,3
43,1 48,4 45,2 51,8 58,8 71,1 75,4 87,2 96,7
2,83 2,90 2,48 2,53 2,58 2,60 2,67 2,65 2,71
2,63 2,65 2,17 2,41 2,45 2,40 2,41 2,37 2,54
2,46 2,44 2,50 2,51 2,50 2,28 2,56 2,42 2,43
4,34 4,23 4,05 3,60 3,77 3,91 4,04 4,14 3,93
4,21 4,04 3,92 3,85 3,92 4,02 3,98 4,07 4,01
3,98 3,89 4,01 4,14 4,14 4,13 4,07 4,08 4,09
86 87 91 92 92 92 92 93 94
83 84 85 86 86 86 86 87 88
81 82 82 82 82 82 83 83 83
54 55 59 60 60 60 60 61 62
51 52 53 54 54 54 54 55 56
49 50 50 50 50 50 51 51 51
0452 0512 0504 0524 0604 0704 0804 0904 1004
107 120 111 129 147 166 189 211 240
103 119 103 123 141 156 177 199 227
- - 108 124 141 159 183 201 225
39,9 44,0 43,7 54,0 60,0 68,9 75,9 85,1 95,6
41,6 44,5 46,2 53,5 60,0 70,3 78,3 87,7 96,2
- - 45,0 52,1 58,3 67,7 75,3 87,4 95,3
121 135 127 145 167 185 209 234 267
120 137 122 138 158 176 198 225 254
- - 125 140 158 178 205 226 253
38,1 42,3 43,6 52,7 58,0 64,7 72,1 79,9 92,1
37,9 42,3 41,5 48,9 53,7 60,7 67,8 75,5 86,1
- - 42,8 47,5 52,1 59,5 68,6 75,8 83,8
3,18 3,19 2,91 2,75 2,88 2,86 2,90 2,93 2,90
3,16 3,23 2,94 2,82 2,94 2,90 2,92 2,98 2,95
- - 2,92 2,95 3,03 2,99 2,99 2,98 3,02
86 87 91 92 92 92 92 93 94
83 84 85 86 86 86 86 87 88
- - 82 82 82 82 83 83 83
87 55 59 60 60 60 60 61 62
84 52 53 54 54 54 54 55 56
- - 50 50 50 50 51 51 51
0604 0704 0804 0904 1004
3110 3110 3110 4110 4110
3110 3110 3110 4110 4110
3110 3110 4110 4110 4110
2220 2220 2220 2220 2220
2220 2220 2220 2220 2220
2220 2220 2220 2220 2220
1700 2150 2150 2150 2150
1700 2150 2150 2150 2150
2150 2150 2150 2150 2150
1620 1780 1890 2070 2220
1620 1780 1890 2070 2220
1770 1860 2120 2180 2320
Data referred to:
Units fitted with a hydronic unit with one 2-pole high-head pump. Data
referring to other configurations can be obtained from our sales department.
1) Evaporator water (in/out) 12/7 °C
Condenser air (in) 35 °C
2) Condenser water (in/out) 40/45 °C
Evaporator air (in) 7 °C
3) Acoustic power measured according to ISO 3744 and Eurovent 8/1.
4) Acoustic pressure measured in free field conditions on a reflecting plane.
Average value on the condensing coil side, 10 metre from the outer surface and
10 metre above the base of the unit.
4) Free space required around the unit:
Electrical panel side 600 mm
Opposite side from electrical panel 600 mm
Condensation coil side 1000 mm
The information contained in this document may be modified without notice
and refers to units designed for the European Market.
0604 0704 0804 0904 1004
3110 3110 3110 4110 4110
3110 3110 3110 4110 4110
3110 3110 4110 4110 4110
2220 2220 2220 2220 2220
2220 2220 2220 2220 2220
2220 2220 2220 2220 2220
1700 2150 2150 2150 2150
1700 2150 2150 2150 2150
2150 2150 2150 2150 2150
1750 1900 2080 2270 2410
1750 1900 2080 2270 2410
1900 2050 2310 2370 2520
H
H
A
A
B
B
NECS / NECS-N 0152-0512 NECS / NECS-N 0504-1004

LOW-NOISE VERSIONS
Two noise reduction versions are available
for all sizes: low noise and super low noise.
Low noise levels are achieved by reducing
fan speed while the circuitry has been optimised
and the coils generously sized to ensure
the unit works correctly.
Example of low-noise configuration
NECS 0704 sound power levels:
LN version =- 6
dB(A)
compared with the standard version
SL version =-10 dB(A)
compared with the standard version
Climaveneta certifies and guarantees
its noise parameters
CONTROLLER WITH LCD INTERFACE
All the units can be connected to the new W3000
controller featuring a “user friendly” interface.
(Std. for 4 compressors).
The interface is also available in the remote version.
Main functions: QuickMind, local and remote FWS
supervision, dual setpoint management, etc.,
confirm Climaveneta's commitment to continually
developing its electronics technology.
The heat pumps, moreover, are fitted with the original
Climaveneta defrosting control system called “Autotuning
Defrost” which considerably reduces defrosting times,
thus improving the energy performance of the unit.
Interfaces with BMS systems: METASYS ® , MODBUS ® ,
LONWORKS ® , SYEMENS ® , TREND ® .
QuickMind is a special control unit which monitors
the main operating parameters, predicts system
behaviour and anticipates unit settings in order
to constantly optimise performance; it allows both
return and delivery water temperatures to be chosen
as adjustment parameters.
Black Box logs data relative
to 200 alarm events which
can be printed with any kind
of personal computer.
IDRORELAX
The NECS range of chillers with heat pump is available
in the IR configuration; this allows units to be combined
with IDRORELAX, a centralised hydronic system
for managing cooling and heating requirements
and producing hot running water for residential, hotel and office applications.
Further information on the IDRORELAX system can be obtained by consulting
the relative documentation.

A100HL_101_110D_CV_05_06_GB (V.02)
CLIMAVENETA S.p.A.
Via Sarson, 57/c
36061 Bassano del Grappa (VI) - Italia
Tel. +39 0424 509 500
Fax +39 0424 509 509
info@climaveneta.it
www.climaveneta.it