Western Zeta Rev HE FC, Application And Operating Principle

Page: 21 / 44

19
ZETA REV HE FC/NG
3.2 4.2 5.2 6.2 7.2 8.2 9.2 10.2 12.2 13.2
Cooling (A30°C; W 15/10°C)
Refrigeration capacity
(1) kW
47,4 54,3 64,3 69,1 78,8 94,4 108,9 122,4 140,4 151,9
Total absorbed power
(1) kW
13,4 16,0 19,3 19,5 23,3 25,4 29,9 34,5 39,9 45,9
EER
(1)
3,55 3,39 3,33 3,55 3,39 3,72 3,64 3,55 3,52 3,31
ESEER 4,12 4,11 4,08 4,19 4,10 4,19 4,21 4,10 4,08 3,93
Free-Cooling (A5°C; W 15/x°C)
Refrigeration capacity
(2) kW
23,7 24,5 25,6 31,9 32,6 48,3 49,3 50,2 61,7 62,5
Amount of free cooling
(2)
50% 45% 40% 46% 41% 51% 45% 41% 44% 41%
TFT - Total Free-cooling Temperature
°C
-1,9 -3,4 -5,5 -3,0 -4,7 -1,5 -3,3 -4,8 -3,7 -4,8
Compressors
Compressors/Circuits
n°/n°
2 / 1 2 / 1 2 / 1 2 / 1 2 / 1 2 / 1 2 / 1 2 / 1 2 / 1 2 / 1
Minimum capacity reduction step
%
50% 50% 50% 50% 50% 50% 50% 50% 50% 50%
Refrigerant charge (MCHX)
kg
4,2 4,2 4,4 5,7 5,7 9,2 9,2 9,6 10,3 10,8
Fans
Diameter
mm
630 630 630 630 630 630 630 630 800 800
Quantity
n°
2 2 2 2 2 3 3 3 2 2
Total air flow rate
m³/h
18.000 18.000 17.000 19.000 19.000 28.000 28.000 28.000 39.000 39.000
User-side heat exchanger
Quantity
n°
1 1 1 1 1 1 1 1 1 1
Water flow rate
(1) m³/h
8,2 9,4 11,2 12,0 13,6 16,4 18,9 21,2 24,3 26,3
Total head losses
kPa
81 100 98 56 67 90 78 78 85 90
Internal volume of the internal FC circuit
(7) l
30 30 35 50 50 75 75 75 75 75
Hydraulic modules
Volume of the expansion vessel
l
18 18 18 18 18 18 18 18 18 18
Volume of the buffer tank
l
165 165 165 200 200 200 200 200 200 200
Pump model P1 P1 P1 P1 P1 P2 P2 P2 P2 P2
Available head (1P)
kPa
194 174 172 207 192 190 197 192 178 168
Available head (2P)
kPa
185 162 157 199 183 176 180 185 169 158
Noise levels
Sound power level of basic unit
(5) dB(A)
78 79 79 80 81 82 83 84 86 87
Sound pressure level of basic unit
(6) dB(A)
46 48 48 48 49 50 51 52 54 55
Sound power level of LN version
(5) dB(A)
76 77 77 78 79 80 81 82 84 85
Sound pressure level of LN version
(6) dB(A)
44 46 46 46 47 48 49 50 52 53
Dimensions and weights of unit without accessories
Length
mm
2.590 2.590 2.590 3.253 3.253 4.405 4.405 4.405 4.405 4.405
Depth
mm
1.337 1.337 1.337 1.337 1.337 1.437 1.437 1.437 1.437 1.437
Height
mm
1.488 1.488 1.488 1.788 1.788 1.788 1.788 1.788 1.882 1.882
Operating weight (MCHX)
kg
842 846 880 1.082 1.094 1.434 1.446 1.456 1.560 1.600
(MCHX: unit with microchannel coils; CuAl: unit with copper/aluminium tube/fin coils)
(1) external air temperature 30°C; evaporator inlet/outlet water temperature 15/10°C
(2) external air temperature 5°C; evaporator inlet/outlet water temperature 15/x°C
(5) Sound power level obtained from measurements carried out in accordance with standard ISO 3744. Reference conditions: External air tempera-
ture 30°C; evaporator inlet-outlet water temperature 15/10°C.
(6) Sound pressure level measured at a distance of 10 metres from the unit in free field, with directivity factor Q=2. Reference conditions: External
air temperature 30°C; evaporator inlet-outlet water temperature 15/10°C. These values are to be considered approximate and non-binding.
(7) Volume of water contained in the closed free cooling circuit inside the unit