Greenheck ERCH Installation, Operation And Maintenance Manual page 21

Piping Installation
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
Run 1/4 in. line through 7/8 in. hole here and bring
around end of the sump to supply connection
®
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
Drain (19.05 mm)
B C
4.5 4.5 39
4.5 4.5 44.5
4.5 4.5 47.5
4.5 4.5 62.5
D
1/4 in. Water Supply Connection
1
1
1
D
Run 1/4 in. line through 7/8 in. hole here and bring
around end of the sump to supply connection
1/4 in. Water Supply Connection
INDIRECT
EVAP
DIRECT
EVAP
Energy Recovery Ventilator with Heating and Cooling General Description - NOT model specific
ELECTRICAL BOX
RETURN AIR
INTAKE
B
A
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