Unit installation

Electrical Data
66
APPENDIX B-ELECTRICAL DATA
Table 15 Liebert CRV electrical data - 60Hz (Amps)
Voltage
Air-Cooled Units Water/ Glycol-Cooled Units Chilled Water Units
CR035RA CR020RA CR035RW CR020RW CR040RC
460\3\60 208\3\60 208\3\60 460\3\60 208\3\60 208\3\60 460\3\60 208\3\60
Cooling with Dehumidifying, Condensate Pump, Reheat; with or without Humidifier
FLA 31.7 62.0 51.0 31.7 62.0 51.0 11.7 24.9
WSA 38.6 75.4 61.6 38.6 75.4 61.6 14.3 31.1
OPD 50 100 80 50 100 80 15.0 35
Cooling with Dehumidifying, Condensate Pump and Humidifier; NO Reheat
FLA 27.9 53.8 42.8 27.9 53.8 42.8 7.9 16.7
WSA 32.9 63.1 49.3 32.9 63.1 49.3 9.9 20.9
OPD 50 100 70 50 100 70 15 25
Cooling with Dehumidifying and Condensate Pump; NO Reheat, NO humidifier
FLA 24.2 45.4 34.4 24.2 45.4 34.4 4.2 8.3
WSA 29.2 54.7 40.9 29.2 54.7 40.9 4.6 9.1
OPD4590604590 60 1515
Cooling with Dehumidifying and Reheat; NO Condensate Pump, NO humidifier
FLA 30.5 59.7 48.7 30.5 59.7 48.7 10.5 22.6
WSA 37.4 73.1 59.3 37.4 73.1 59.3 13.1 28.3
OPD 50 100 80 50 100 80 15 30.0
Cooling with Dehumidifying, NO Condensate Pump, NO Reheat, NO Humidifier
FLA 23.0 43.1 32.1 23.0 43.1 32.1 3.0 6.0
WSA 28.0 52.4 38.6 28.0 52.4 38.6 3.4 6.8
OPD4580604580 60 1515
FLA = Full Load Amps; WSA = Wire Size Amps (Minimum Supply Circuit Ampacity); OPD = Maximum Overcurrent Protective Device
Electrical data for a unit does not change if dehumidifying is enabled or disabled
Table 16 Calibrations of electrical components
Refrigeration Circuit
Item No. Component Setting Notes Contact
18-19
High Pressure
Transducer
Range 045 barg
Output 05V
see Liebert iCOM
user manual, SL-18835
—
14
Low Pressure
Transducer
Range 017.3 barg
Output 05V
—
3
High Pressure
Switch (HP)
STOP 37±1 barg
START 30.0±1.5 barg
(fixed setting manual reset)
Reset
Normally
Closed
—
Clogged Filter
Differential Pressure
Switch (CF)
Set point range 0.54 mbar
Filter G4 = 2 mbar
Setting Ring
Normally
Closed