Unit Dimensions − inches (mm)
1NOTE − 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.
2Flue outlet may be horizontal but furnace must be vented vertically
3Optional external side return air filter kit cannot be used with the optional RAB Return Air Base.
3−1/8 (79) |
D |
SUPPLY AIR |
OPENING |
FLUE OUTLET |
(Top) |
3 OPTIONAL |
|
|
|
| 23−3/4 |
|
| ||||
|
|
|
| ||||||||
EXTERNAL |
|
|
|
|
| (603) |
|
|
|
| |
|
|
|
|
|
|
|
| ||||
|
|
|
|
|
| ||||||
SIDE RETURN |
| 25 |
|
|
| ||||||
AIR FILTER KIT |
|
|
| (635) |
|
|
| ||||
|
|
|
| ||||||||
(Either Side) |
|
|
| TOP VIEW | |||||||
| A |
|
|
| B | 9/16 (14) | |
|
| 3OPTIONAL | |
|
| EXTERNAL | |
|
| SIDE RETURN | |
|
| AIR FILTER KIT | |
|
| (Either Side) | |
|
|
| 33 |
|
|
| (838) |
|
| 14−3/4 | |
|
| (375) | |
|
|
| 16 |
|
|
| (406) |
|
|
| 5/8 |
3/4 | C | 3/4 | (16) |
(19) | (19) |
| |
1Bottom Return |
| ||
| Air Opening |
|
|
FRONT VIEW
3/4(19) | 27−3/4 |
| ||
Front Panel | (705) |
|
| |
| 3−1/4 (83) |
|
| |
3 (76) Right | 19−7/16 | 9/16 | ||
(14) | ||||
6−3/4 (171) Left | (494) |
| ||
| 2 FLUE OUTLET |
|
| |
9−1/8 (232) Right | (Either Side) |
|
| |
ELECTRICAL INLET |
| |||
8−5/8 (219) Left |
| |||
(Either Side) |
|
| ||
|
|
| ||
5−3/8 (137) Right | GAS PIPING INLET |
| ||
1−9/16 (40) Left | (Either Side) |
|
| |
ELECTRICAL | 23 |
| 1−1/2 | |
INLET (Either Side) |
| |||
(584) |
| (38) | ||
| 1 Side Return | 14 |
| |
(Either Side) | Air Opening | (356) |
| |
| (Either Side) |
|
| |
| 1−15/16 (49) |
| ||
3−1/4 | 23−1/2 |
|
| |
(83) | (597) |
|
| |
| 1Bottom Return |
|
| |
| Air Opening |
|
| |
SIDE VIEW
ML180UH Model No. |
| A |
| B |
| C |
| D | ||||
in. |
| mm | in. |
| mm | in. |
| mm | in. |
| mm | |
|
|
|
|
| ||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
045P24A |
|
|
|
|
|
|
|
|
|
|
|
|
045P36A | 14−1/2 |
| 368 | 13−3/8 |
| 340 | 13 |
| 330 | 4−3/4 |
| 121 |
070P24A |
|
|
|
| ||||||||
|
|
|
|
|
|
|
|
|
|
|
| |
070P36A |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
090P36B | 17−1/2 |
| 446 | 16−3/8 |
| 416 | 16 |
| 406 | 6−1/4 |
| 159 |
090P48B |
|
|
|
| ||||||||
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
110P48C | 21 |
| 533 | 19−7/8 |
| 504 | 19−1/2 |
| 495 | 8 |
| 203 |
110P60C |
|
|
|
| ||||||||
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
135P60D | 24−1/2 |
| 622 | 23−3/8 |
| 546 | 23 |
| 584 | 9−3/4 |
| 248 |
|
|
|
|
|
|
|
|
|
|
|
|
|
Page 2
