Parameter
Design Condition (Minimum)
Design Condition (Maximum)
Unit entering air
Temperature °C (°F)
24 (75.2)
45 (113)
Relative humidity
17%
60%
Storage conditions
Temperature °C (°F)
-40 (-40)
70 (158)
Outdoor air
Temperature °C (°F)
-20 (-4)
48 (118.4)
Note: Unit remains operational up to
52 °C (125.6 °F) with reduced
capacity
With low ambient kit
Low ambient kit
-35 (-31)
48 (118.4)
Power supply tolerances
Voltage ± 10%
Frequency ± 3 Hz
Equivalent length of pipe between evaporator and condenser m (ft)
-
120 (393.7)
Height between evaporator and
condenser m (ft)
Condenser placed higher than
evaporator
-
30 (98.4)
Condenser placed lower than
evaporator
-
8 (26.2)
Table 2.5 Operating Limits
NOTE: The operating limits refer to new units and those that have been correctly installed and serviced.
NOTE: If the altitude is higher than 1000 m (3280.8 ft), please contact Vertiv™.
NOTE: For information about the height between evaporator and condenser with low ambient kit, see
Distance between Condenser and Evaporator
.
Parameter
CRD25
CRD35
Return air condition: 35 °C (95°F) DB,24%RH; outdoor condition: 35 °C (95°F)
Net total capacity kW (kBtu/h)
25.09 (85.6)
35.16 (120)
Net sensible capacity kW (kBtu/h)
24.67 (84.2)
34.47 (117.6)
Indoor unit power input kW (kBtu/h)
6.59 (22.5)
7.99 (27.3)
System power input (indoor unit + outdoor unit) kW (kBtu/h)
6.99 (23.9)
8.49 (29.0)
Table 2.6 Performance Data
Model
Fan
Speed
Average Sound Pressure Level
dB(A)
Location
1/3 Octave Band
Center Freq
50
Hz
63
Hz
80
Hz
100
Hz
125
Hz
160
Hz
200
Hz
250
Hz
Sound Pressure Level
dB(A)
dB
dB
dB
dB
dB
dB
dB
dB
CRD 25
100%
74.3
Front
77.2
17.6
26.2
29
35
39.5
39.4
44.7
52.3
Left
71.4
15.5
22.5
32.4
35.7
41.8
44.2
44.2
48.8
Right
71.4
16
22.1
31.6
40.1
40
45.6
45
50.4
Table 2.7 Sound Level (Measurement Standard: EN 13487)
2 Product Overview
9
Vertiv™ Liebert® CRV CRD25 and CRD35 Row-Based Cooling System User Manual
