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Page 2
Unit Dimensions − inches (mm)
2
Flue outlet may be horizontal but furnace must be
vented vertically
3
Optional external side return air filter kit cannot be used
with the optional RAB Return Air Base.
1
NOTE − 60C and 60D 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 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.
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
1−9/16 (40) Left
33
(838)
3−1/8 (79)
1−15/16 (49)
14
(356)
9/16
(14)
3 (76) Right
6−3/4 (171) 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)
3−1/4 (83)
5/8
(16)
1
3−1/4
(83)
23−3/4
(603)
25
(635)
3/4(19)
Front Panel
ELECTRICAL
INLET (Either Side)
(Either Side)
ML180UHE Model No.
A B C D
in. mm in. mm in. mm in. mm
045(X)E36A
14−1/2 368 13−3/8 340 13 330 4−3/4 121
070(X)E36B
090(X)E48B
17−1/2 446 16−3/8 416 16 406 6−1/4 159
090E60C
110(X)E60C
21 533 19−7/8 504 19−1/2 495 8 203
135E60D
24−1/2 622 23−3/8 546 23 584 9−3/4 248