Emerson Liebert CRV - Figure 31 Connections-Water;Glycol Models

Water Connections for Water/Glycol Units—600mm (24") Models
53 Liebert
®
CRV
™
Figure 31 Connections—water/glycol models
Table 29 Unit connections, water/glycol-cooled models
Unit Connections CR20W (60Hz) CR35W (60Hz)
CS Water/Glycol Coolant Supply 1-1/4" FPT
CR Water/Glycol Coolant Return 1-1/4" FPT
GD Gravity Coil Pan Drain 1" MPT
GDH Gravity Humidifier Drain N/A
HS Humidifier Supply
1/2" FPT (top connection)
1/4" Compression Fitting (bottom connection)
CP Condensate Pump 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)
HVB
High Voltage Bottom Entrance
(feed through the base of the unit)
Knockout Hole Diameter 2-1/2" (63.5mm)
LVT Low Voltage Top Connection
Knockout Hole Diameter
7/8" (22mm) 2 places
LVB
Low Voltage Bottom Entrance
(feed through the base of the unit)
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
HVT
LVT
LVT
HS
CP
CR
CS
GDH
or HS
CR
Piping and electrical
connections available at
the top and bottom of unit.
* Install a 16-20 mesh strainer, in an easily accessible location, on the Water/Glycol Supply
to prevent particles from entering the heat exchanger. Strainer bypass valves are
recommended to allow the strainer to be cleaned while maintaining flow to the cooling unit.
Bottom Connections
(possible with raised floor)
DPN001793
Rev. 2
Top Connections
Rear
2-3/16"
(56mm)
4-13/16"
(122mm)
2-3/16" (56mm)
23-5/8"
(600mm)
2-1/8"
(54mm)
5"
(127mm)
GD
or CP
LVB
LVB
HVB
CS
7-13/16"
(199mm)
8-7/8"
(226mm)
1-1/8"
(28mm)
4-1/8"
(105mm)
6-1/8"
(155mm)
3-1/16"
(77mm)
3-1/16"
(77mm)
5-1/8"
(130mm)
5-3/8"
(136mm)
2-1/8" (55mm)
1-3/4"
(44mm)
12-3/4"
(325mm)
2-15/16"
(74mm)
2-11/16"
(69mm)
2-11/16"
(69mm)
2-11/16"
(69mm)
9-5/16"
(237mm)
9-3/4"
(248mm)
3-7/8"
(98mm)
1-1/2"
(38mm)
3-1/4" (83mm)
3-13/16"
(97mm)
1-3/8"
(35mm)
1-3/4"
(45mm)
1-3/4" (45mm)
46-1/4"
(1175mm)
3-1/4"
(83mm)
17-5/16"
(440mm)
9-1/2"
(242mm)