Service Clearances - Greenheck HRE-20 Installation, operationand Maintenance Manual

SERVICE CLEARANCES / ACCESS PANEL LOCATIONS
HRE-20, 45, 55, and 90 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 . Clearances for component removal may be greater than the service clearances,
refer to drawings below for these dimensions.
HRE-20
HRE-45
** Clearance for energy wheel removal on HRE-45
HRE-55
HRE-90
8
Exhaust
Hood
36 in.
Clearances for service and component removal on HRE-20 and HRE-45
* Clearance for energy wheel removal on HRE-20
Exhaust
Hood
42 in.
Clearances for service and component removal on HRE-55 and HRE-90
36 in.
Access Panel
Electrical Box
Indirect
Evap
Section
Direct
Evap
Section
Access Panel
*48 in. **64 in.
42 in.
Access Panel
Electrical Box
Indirect
Evap
Section
Direct
Evap
Section
Access Panel
42 in.
0 in.
Exhaust Air
Clearance without
Intake
IG Heater
52 in.
Clearance with
IG Heater
TOP VIEW
0 in.
Exhaust Air
Clearance without
Intake
IG Heater
52 in.
Clearance with
IG Heater
TOP VIEW