Greenheck Fan manual SERVICE CLEARANCES / access panel locations, HRE-20 HRE-45, HRE-55 HRE-90

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

Exhaust

Hood

36 in.

Access Panel
Outdoor Air Hood	2 in. filters

36 in.

	Indirect		filters
	Evap		in.
Cassette	Section
			2
Wheel
	Direct
		Evap
	Section
t

Access Panel

Access Panel
Electrical Box
			0 in.
Exhaust Air
Intake	Clearance without
		IG Heater
			52 in.
		Clearance with
		IG Heater

IG Heater

HRE-55 HRE-90

PanelAccess	Cassette SlidesOu		TOP VIEW
			Access Panel
		*48 in. **64 in.

Clearances for service and component removal on HRE-20 and HRE-45

*Clearance for energy wheel removal on HRE-20 ** Clearance for energy wheel removal on HRE-45

		Panel
	42 in.
Hood		Access	Access Panel
Exhaust

42 in.

Panel				filters		Electrical Box
		Indirect
Access		Evap		2 in.		Exhaust Air				0 in.
		Cassette
		Section				Intake		Clearance without
									IG Heater
										52 in.
		Wheel							Clearance with
AirOutdoorHood	filtersin.2						HeaterIG		IG Heater
				Direct
				Evap
			Section
	Panel				Access Panel
		42 in.
	Access						TOP VIEW

Clearances for service and component removal on HRE-55 and HRE-90

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