Figure 31 Connections-Water/Glycol Models - Emerson Liebert CRV User Manual

Figure 31 Connections—water/glycol models
Piping and electrical
connections available at
the top and bottom of unit.
3-1/4"
(83mm)
9-1/2"
(242mm)
2-11/16"
(69mm)
46-1/4"
(1175mm)
1-3/4"
(45mm)
2-3/16" (56mm)
3-1/4" (83mm)
* 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.
Table 29 Unit connections, water/glycol-cooled models
Unit Connections
CS Water/Glycol Coolant Supply
CR Water/Glycol Coolant Return
GD Gravity Coil Pan Drain
GDH Gravity Humidifier Drain
HS Humidifier Supply
CP Condensate Pump
HVT High Voltage Top Connection
High Voltage Bottom Entrance
HVB
(feed through the base of the unit)
LVT Low Voltage Top Connection
Low Voltage Bottom Entrance
LVB
(feed through the base of the unit)
Low Voltage Bottom Entrance
LVB2
(feed through the base of the unit)
Source: DPN001793, Rev. 2
Water Connections for Water/Glycol Units—600mm (24") Models
Top Connections
17-5/16" 3-1/16"
(440mm) (77mm)
9-5/16"
CR
HS
(237mm)
CP
CS
2-11/16"
(69mm)
1-3/4" (45mm)
LVT
HVT
1-1/2"
(38mm)
LVT
4-13/16"
(122mm)
2-1/8"
(54mm)
23-5/8"
(600mm)
CR20W (60Hz)
1/4" Compression Fitting (bottom connection)
1-3/4" (44.5mm) and 2-1/2" (63.5mm)
Knockout Hole Diameter 2-1/2" (63.5mm)
6-1/8" 4-1/8"
(155mm) (105mm)
1-1/8"
(28mm)
Rear
9-3/4"
(248mm)
8-7/8"
(226mm)
2-15/16"
(74mm)
2-11/16"
(69mm) CS
3-7/8"
(98mm)
3-1/16"
(77mm)
HVB
GD
or CP
LVB
7-13/16"
(199mm)
2-3/16"
Bottom Connections
(56mm)
(possible with raised floor)
CR35W (60Hz)
1-1/4" FPT
1-1/4" FPT
1" MPT
N/A
1/2" FPT (top connection)
1/2" FPT
Combination Knockout Hole
Diameter 1-3/8" (35mm)
Knockout Hole Diameter
7/8" (22mm) 2 places
Knockout Hole Diameter
1-3/32" (27.8mm) 2 places
Knockout Hole Diameter
1-3/4" (44.5mm) 1 place
53
12-3/4"
(325mm)
1-3/4"
(44mm)
CR
GDH
or HS
5-1/8"
(130mm)
2-1/8" (55mm)
LVB
5-3/8"
(136mm)
DPN001793
Rev. 2
Liebert
® ™
CRV