Greenheck ERCH-20 Installation, Operation And Maintenance Manual page 14

Service Clearances / Access Panel - Evaporative Cooling
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
Drawing shows optional indirect gas furnace. Electric heat is also available. Only one can be selected.
12 Energy Recovery Ventilator with Heating and Cooling General Description - NOT model specific
EXHAUST AIR
WEATHERHOOD
36 inches
A
ELECTRICAL BOX
INDIRECT
EVAP
DIRECT
EVAP
Model A (in.) B (in.)
ERCH-20 48 36
ERCH-45 64 42
ERCH-55 42 42
ERCH-90 42 48
52 inches
CLEARANCE WITH
IG HEATER
0 inches
CLEARANCE WITHOUT
IG HEATER
®