Page 2
Unit Dimensions - inches (mm)
AIR FLOW
23
(584)
(19)
3/4
(19)
1
Bottom Return
Air Opening
GAS PIPING INLET
(Either Side)
Side Return
Air Opening
(Either Side)
1
Bottom Return
Air Opening
FLUE OUTLET
(Top)
ELECTRICAL INLET
(Either Side)
SUPPLY AIR
OPENING
FRONT VIEW
SIDE VIEW
TOP VIEW
A
B
9/16 (14)
C
D
3/4
27-3/4
(705)
19-7/16
(494)
23-1/2
(597)
1-1/2
(38)
9-1/8 (232) Right
8-5/8 (219) Left
5-3/8 (137) Right
2-3/16 (56) Left
33
(838)
3-1/8 (79)
1-15/16 (49)
14
(356)
9/16
(14)
3 (76) Right
7 (178) Left
2
FLUE OUTLET
(Either Side)
3
OPTIONAL
EXTERNAL
SIDE RETURN
AIR FILTER KIT
(Either Side)
16
(406)
14-3/4
(375)
3
OPTIONAL
EXTERNAL
SIDE RETURN
AIR FILTER KIT
(Either Side)
2
Flue outlet may be horizontal but furnace must be
vented vertically
3
Optional External Side Return Air Filter Kit is not for use
with the optional Return Air Base.
1
NOTE - 60C and 60D size units that require second stage
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 Performance Tables for additional information.
3-1/4 (83)
5/8
(16)
1
3-1/4
(83)
23-3/4
(603)
25
(635)
1-1/2 (38)
Front Panel
EL280UH Model
A
B
C
D
in
mm
in
mm
in
mm
in
mm
070P24A
070(X)P36A
14-1/2
368
13-3/8
340
13
330
4-3/4
121
090P36A
090(X)P48B
17-1/2
446
16-3/8
416
16
406
6-1/4
159
110P48C
110(X)P60C
21
533
19-7/8
504
19-1/2
495
8
203
135P60D
24-1/2
622
23-3/8
546
23
584
9-3/4
248
