Greenheck ERCH-20 Installation, Operation And Maintenance Manual page 13

Service Clearances / Access Panel - Water-Source Heat Pump
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 hot gas reheat coil.
®
EXHAUST AIR
WEATHERHOOD
ACCESS PANEL
A
ACCESS PANEL
ELECTRICAL BOX
HEAT PUMP
36 inches
Energy Recovery Ventilator with Heating and Cooling General Description - NOT model specific
Model A (in.) B (in.)
ERCH-20 48 36
ERCH-45 64 42
ERCH-55 42 42
ERCH-90 42 48
ACCESS DOOR
42 inches
11