Greenheck Fan ERV-581, ERV-522, ERV-582, ERV-521, ERV-251, ERV-361 manual Rail Mounting / Layout

Rail Mounting / Layout

•Rails designed to handle the weight of the ERV should be positioned as shown on the diagram (rails by others).

•Make sure that rail positioning does not interfere with the supply air discharge opening or the exhaust air intake opening on the ERV unit. Avoid area dimensioned “B” below.

•Rails should extend beyond the unit a minimum of 12 inches on each side.

•Set unit on rails.

ERV-251 ERV-361 ERV-521 ERV-581

ERV-522 ERV-582

		E
	AIR	SID
OUTDOOR

Isometric view of

ERV on rails

OUTDOORA
IR
INT
AKE	END

Isometric view of

ERV on rails

OUTDOOR
AIR
INTAKE		OUTDOOR AIR SIDE
HOOD
		SUPPLY/EXHAUST
		OPENING
Side view of		B A
ERV on rails
Unit Size	A	B
ERV-251	4.50	16
ERV-361	4.75	18
ERV-521	5.75	24
ERV-581	4.875	22

All dimensions are in inches.

OUTDOOR AIR INTAKE HOOD

		OUTDOOR AIR INTAKE END
	SUPPLY/EXHAUST
	OPENING
Side view of
ERV on rails	A	B
Unit Size	A	B
ERV-522	4.625	32
ERV-582	4.875	33.25

All dimensions are in inches.

6Model ERV Energy Recovery Unit