Greenheck ERCH Installation, Operation And Maintenance Manual page 9

Unit Installation
Service Clearances / Access Panel - Cooling Coil (with or without heating)
Units require minimum clearances for access on all sides for routine maintenance. Filter replacement, drain pan
inspection and cleaning, energy wheel cassette inspection, fan bearing lubrication and belt adjustment are examples
of routine maintenance that must be performed. Blower and motor assemblies, energy recovery wheel cassette, coil
and filter sections are always provided with a service door or panel for proper component access.
*Cassette removal only available
on housing sizes 20 and 45.
B
ACCESS DOOR
OUTDOOR
WEATHERHOOD
36 inches
Drawing shows both heating coil and indirect gas furnace options. Only one can be selected.
®
EXHAUST AIR
WEATHERHOOD
CLEARANCE
PIPING VESTIBULE
WITHOUT
(OPTIONAL)
VESTIBULE
A
ELECTRICAL BOX
ACCESS PANEL
48 inches
Energy Recovery Ventilator with Heating and Cooling General Description - NOT model specific
Model A (in.)
ERCH-20 48
ERCH-45 64
ERCH-55 42
ERCH-90 42
52 inches
CLEARANCE WITH
IG HEATER
0 inches
CLEARANCE WITHOUT
IG HEATER
CLEARANCE
WITH
VESTIBULE
B (in.)
36
42
42
48
9