Water Supply Locations - Greenheck ERCH-20 Installation, Operation And Maintenance Manual

Auto Drain & Flush Valves
(when provided by Manufacturer)
Assembly Mfg ASCO Solenoid
No. Part No. Part No.
461262 8210G2
852178 461263 8262G262
461264 8210G35
Part numbers subject to change.
Water Supply Connection Locations for Evaporative Cooler
Water Supply Connection Locations
Model
A
ERCH-20 37.5
ERCH-45 45.25
ERCH-55 56
ERCH-90 59
Dimensions from outside of unit (in inches)
C
OUTDOOR AIR
INTAKE
1/4 in. water supply connection
Ø0.875 Run 1/4 in. line up through 7/8 in. hole here
and bring around end of sump to supply connection.
22 General Description - NOT model specific Energy Recovery Ventilator with Heating and Cooling
De-Energized
Diameter Qty.
Type Position
1/2-inch
Supply Closed
(12.7 mm)
Supply
1/4-inch
Line Open
(6.35 mm)
Drain
Sump
3/4-inch
Open
(19.05 mm)
Drain
B C
4.5 4.5 46
4.5 4.5 51.5
4.5 4.5 57
4.5 4.5 68
D
DIRECT
EVAP
1
1
1
D
Ø0.875 Run 1/4 in. line up through 7/8 in. hole here and
bring around end of sump to supply connection.
1/4 in. water supply connection
ELECTRICAL BOX
INDIRECT
EVAP
A
RETURN AIR
INTAKE
B
®