Appendix 4 Refrigerant, Hydraulic And Electrical Connections - Liebert CR020 User Manual

Appendix 4 Refrigerant, Hydraulic And Electrical Connections

83
56
83
IL Refrigerant liquid line inlet
OG Refrigerant gas line outlet
Condensate drain
CD
Attention: with pump, CD is connected with HD, see DP
HF Humidifier feed
Humidifier drain
HD
Attention: with pump, CD is connected with HD, see DP
DP Pump drain
EC-HV Electrical supply – high voltage
EC-LV Electrical supply – low voltage
Appendix 4 Refrigerant, Hydraulic And Electrical Connections
Rear view
Top connections
77
440
OG
HF
DP IL
EC-HV
EC-LV
54
600
Figure 11 CR020RA, CR035RA connections (unit: mm)
Table 9 Refrigerant and hydraulic connections for air cooled units
Unit connection
Liebert.CRV Series Air Conditioner User Manual
28
247.5
225.5
IL
76.5
98
CD or DP
EC-HV
EC-LV
55.5
Bottom connections (possible with raised floor)
CR020RA
OD 12.7mm CU sweat
OD 16mm CU sweat
ID 20mm
12.7mm GAS-F for top connections,
19mm GAS F for bottom connections
ID 22mm
12.7mm GAS F
Hole, Φ63mm
Hole, Φ28mm
59
324.5
OG
HF/HD
CR035RA
OD 16 mm CU sweat
OD 22mm CU sweat