Emerson Liebert CRV 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 C R 0 2 0 R A 1 C 7 S D 1 8 1 1 E L 1 0 P A - Manual (Page 42)

Water Connections
Liebert ® CRV ™ 34
Table 19 Unit connections, water/glycol-cooled models
Unit Connections CR20W (50Hz) CR35W (50Hz) CR20W (60Hz) CR35W (60Hz)
CS Water/Glycol Coolant Supply 32mm GAS F 1-1/4" FPT
CR Water/Glycol Coolant Return 32mm GAS F 1-1/4" FPT
GD Gravity Coil Pan Drain 20mm I.D. 1" MPT
GDH Gravity Humidifier Drain 22mm I.D. N/A
HS Humidifier Supply
1/2" GAS F (top connection)
3/4" GAS F (bottom connection)
1/2" FPT (top connection)
1/4" Compression Fitting
(bottom connection)
CP Condensate Pump 1/2" GAS F 1/2" FPT
HVT High Voltage Top Connection
Combination Knockout Hole
Diameter 1-3/8" (35mm)
1-3/4" (44.5mm) and 2-1/2" (63.5mm)
Combination Knockout Hole
Diameter 1-3/8" (35mm)
1-3/4" (44.5mm) and 2-1/2" (63.5mm)
HVB High Voltage Bottom Entrance
(feed through the base of the unit)
Hole Diameter 2-1/2" (63.5mm) Knockout Hole Diameter 2-1/2" (63.5mm)
LVT Low Voltage Top Connection
Hole Diameter
7/8" (22mm) 2 places
Knockout Hole Diameter
7/8" (22mm) 2 places
LVB Low Voltage Bottom Entrance
(feed through the base of the unit)
Hole Diameter 1-7/64" (28mm)
2 places
Knockout Hole Diameter
1-3/32" (27.8mm) 2 places
LVB2 Low Voltage Bottom Entrance
(feed through the base of the unit)
—
Knockout Hole Diameter
1-3/4" (44.5mm) 1 place
Source: DPN001793, Rev. 2