Lennox International Inc EL280UH Unit Dimensions − inches mm, Supply AIR Opening

Unit Dimensions − inches (mm)

1NOTE − 60C and 60D size units that require air volumes over 1800 cfm (850 L/s) must have one of the following:

1.Single side return air with transition, to accommodate 20 x 25 x 1 in. (508 x 635 x 25 mm) cleanable air filter. Required to maintain proper air velocity.

2.Single side return air with optional Return Air Base

3.Bottom return air.

4.Return air from both sides.

5.Bottom and one side return air.

See Blower PerformanceTables for additional information.

D

FLUE OUTLET (Top)

3−1/8 (79)

SUPPLY AIR

OPENING

2Flue outlet may be horizontal but furnace must be vented vertically

3Optional External Side Return Air Filter Kit is not for use with the optional Return Air Base.

3 OPTIONAL			23−3/4
EXTERNAL
		(603)
SIDE RETURN
	25
AIR FILTER KIT
(Either Side)				(635)

3/4

(19)

			TOP VIEW
		1−1/2 (38)	27−3/4
A		Front Panel	(705)
			3−1/4 (83)
B	9/16 (14)	3 (76) Right	19−7/16
		7 (178) Left	(494)
			2 FLUE OUTLET
		9−1/8 (232) Right	(Either Side)
	3 OPTIONAL		GAS PIPING INLET
		8−5/8 (219) Left
	EXTERNAL		(Either Side)
	SIDE RETURN
	AIR FILTER KIT
	(Either Side)	5−3/8 (137) Right
	33		ELECTRICAL INLET
		2−3/4 (70) Left
	(838)		(Either Side)
			23
	14−3/4		(584)
	(375)		1 Side Return	14
	16		Air Opening	(356)
	(406)		(Either Side)
AIR FLOW			1−15/16 (49)
	5/8
C	3/4 (16)	3−1/4	23−1/2
	(19)	(83)	(597)
1 Bottom Return			1 Bottom Return
Air Opening			Air Opening
FRONT VIEW			SIDE VIEW

9/16

(14)

1−1/2

(38)

EL280UH Model No.		A			B			C			D
	in.		mm	in.		mm	in.		mm	in.		mm
070P24A	14−1/2		368	13−3/8		340	13		330	4−3/4		121
070(X)P36A
090P36B	17−1/2		446	16−3/8		416	16		406	6−1/4		159
090(X)P48B
110P48C	21		533	19−7/8		504	19−1/2		495	8		203
110(X)P60C
135P60D	24−1/2		622	23−3/8		546	23		584	9−3/4		248

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