Unit Dimensions - Inches (Mm) - Lennox MERIT ML180UHE045(X)E36A Installation Instructions Manual

Unit Dimensions - inches (mm)

1
NOTE - 60C and 60D units that require air volumes
over 1800 cfm must have one of the following:
1. Single side return air and Optional Return Air Base
with transition that must accommodate required
20 x 25 x 1 in. (508 x 635 x 25 mm) air
filter to maintain proper air velocity.)
2. Bottom return air.
3. Return air from both sides.
4. Bottom and one side return air.
See Blower Performance Tables for additional information.
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.
A
B
3/4
C
(19)
1
Bottom Return
Air Opening
FRONT VIEW
ML180UHE
Model
in
045(X)E36A
14-1/2
070(X)E36A
070(X)E36B
17-1/2
090(X)E48B
090E60C
21
110(X)E60C
135E60D 24-1/2
9/16 (14)
3
OPTIONAL
EXTERNAL
SIDE RETURN
AIR FILTER KIT
(Either Side)
33
(838)
14−3/4
(375)
16
(406)
5/8
(16)
3/4
(19)
A
mm in
368 13-3/8
446 16-3/8
533 19-7/8
622 23-3/8
D
FLUE OUTLET
(Top)
3
OPTIONAL
EXTERNAL
SIDE RETURN
AIR FILTER KIT
(Either Side)
3/4(19)
Front Panel
3 (76) Right
6−3/4 (171) Left
9−1/8 (232) Right
8−5/8 (219) Left
5−3/8 (137) Right
1−9/16 (40) Left
ELECTRICAL
INLET (Either Side)
(Either Side)
3−1/4
(83)
B
mm in
340 13
416 16
504 19-1/2
546 23
Page 2
3−1/8 (79)
SUPPLY AIR
OPENING
23−3/4
(603)
25
(635)
TOP VIEW
27−3/4
(705)
3−1/4 (83)
19−7/16
(494)
2
FLUE OUTLET
(Either Side)
ELECTRICAL INLET
(Either Side)
GAS PIPING INLET
(Either Side)
23
(584)
14
1 Side Return
(356)
Air Opening
(Either Side)
1−15/16 (49)
23−1/2
(597)
1
Bottom Return
Air Opening
SIDE VIEW
C
mm in
330 4-3/4
406 6-1/4
495 8
584 9-3/4
9/16
(14)
1−1/2
(38)
D
mm
121
159
203
248