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SERVICE CLEARANCES / ACCESS PANEL LOCATIONS for Model HRE
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 FIGURES 6 and 7 below for these dimensions.
Clearances for service and component removal on HRE-20 and HRE-45
36 in.
*Clearance for energy wheel removal on HRE-20.
**Clearance for energy wheel removal on HRE-45.
Clearances for service on HRE-55 and HRE-90
42 in.
6
36 in.
Exhaust
Hood
Indirect
Evap
Section
Direct
Evap
Section
*48 in. **64 in.
FIGURE 6
42 in.
Exhaust
Hood
Indirect
Evap
Section
Direct
Evap
Section
42 in.
FIGURE 7
Access Panel
Electrical Box
0 in.
Exhaust Air
Clearance without
Intake
IG Heater
52 in.
Clearance with
IG Heater
Access Panel
TOP VIEW
Access Panel
Electrical Box
0 in.
Exhaust Air
Clearance without
Intake
IG Heater
52 in.
Clearance with
IG Heater
Access Panel
TOP VIEW
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