Greenheck Fan 473501 Installation, Dimensional Data, Unit Weights and Recommended Roof Opening

Installation

Dimensional Data

		Overall Exterior Dimensions
Model
	Width	Overall Width	Overall Length
	(including Lifting Lugs)	(with Exhaust Hood)	(with Outdoor Air Hood)
ERCH-HP 20	59.5	75	116
ERCH-HP 45	69.5	86	122
ERCH-HP 55	79.5	101	134
ERCH-HP 90	99.5	123	147

All dimensions shown are in inches.

Unit Weights and Recommended Roof Opening

V
Exhaust
Intake
	U
Supply
Discharge
	1/2 inch
1/2 inch	1/2 inch

Unit Size	U	V	Approximate
			Weight (pounds)
ERCH-HP 20	46	37	2150
ERCH-HP 45	54	39	3500
ERCH-HP 55	65	47	4450
ERCH-HP 90	85	49	5300

All dimensions are in inches. Unit weights assume rooftop configuration with weatherhoods, filters, outdoor air damper, six row DX coil, integral condensing section and an indirect gas-fired furnace.

Position the unit roof opening such that the supply discharge and exhaust inlet of the unit will line up with the corresponding ductwork. Be sure to allow for the recommended service clearances when positioning opening (see Service Clearances). Do not face the outdoor air intake of the unit into prevailing wind and keep the intake away from any other exhaust fans. Likewise, position the exhaust discharge opening away from outdoor air intakes of any other equipment.

Model ERCH-HP Energy Recovery Unit 7