G61MP Unit Dimensions − inches (mm)
*NOTE − 60C and 60D size units installed in upflow ap- plications 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) air filter.
Required to maintain proper air velocity.
2.Single side return air with optional RAB Return Air Base
3.Bottom return air.
4.Return air from both sides.
5.Bottom and one side return air.
Refer to Engineering Handbook for additional information.
**Consider sizing requirements for optional IAQ equip- ment before cutting side return opening.
1Optional External Side Return Air Filter Kit is not for use with the optional RAB Return Air Base.
SUPPLY AIR
OPENING
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1OPTIONAL |
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EXTERNAL |
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SIDE RETURN |
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| 25 (635) |
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AIR FILTER KIT | TOP VIEW | |
(Either Side) | ||
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A |
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| 28−1/2 |
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| (724) |
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| 9/16 | |
B |
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| 19−7/16 | |
9/16 (14) |
| 5−1/2 |
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| 6−1/2 | (378) |
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| (140) |
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| (165) |
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| COMBUSTION AIR INTAKE |
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| 6−1/2 |
| 3−1/8 | (Either Side) |
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| 11−5/8 (295) | (165) |
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| (79) |
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| Right |
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| EXHAUST AIR OUTLET |
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| 9−3/4 (248) | 4−1/8 | 6−3/4 |
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| 1 OPTIONAL | Left | (103) | (171) |
| GAS PIPING INLET |
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| EXTERNAL |
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| (Either Side) |
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| SIDE RETURN |
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| AIR FILTER KIT |
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| CONDENSATE |
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| (Either Side) | 4−7/8 (124) Right |
| TRAP CONNECTION |
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| 40 | 2−1/4 (57) Left |
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| (1016) |
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| ELECTRICAL INLET |
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| 2−1/2 |
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| (64) |
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| 14−3/4 |
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| 4 |
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| 23 |
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| (584) |
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| (375) |
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| (102) |
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| 14** |
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| 16 |
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| *OPTIONAL |
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| (406) |
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| RETURN CUTOUT | (356) |
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| (Either Side) |
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| AIR FLOW |
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| 1−15/16 (49) |
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| C |
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| 5/8 (16) |
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| 23−1/2 |
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| 3/4 (19) |
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| 4−1/4 |
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3/4 (19) *Bottom Return |
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| *Bottom Return |
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| Air Opening |
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| (108) |
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| Air Opening |
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| FRONT VIEW |
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| SIDE VIEW |
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| Model No. |
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| A |
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| in. |
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| mm |
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G61MP−36B−045 |
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G61MP−36B−070 |
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| 17−1/2 |
| 446 |
| 16−3/8 |
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| 416 |
| 16 |
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G61MP−36B−071 |
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G61MP−48C−090 |
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G61MP−60C−090 |
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G61MP−60C−091 |
| 21 |
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| 533 |
| 19−7/8 |
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| 505 |
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| 19−1/2 |
| 495 | ||||||||||||||||||||
G61MP−48C−110 |
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G61MP−60C−110 |
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G61MP−60C−111 |
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G61MP−60D−135 |
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| 24−1/2 |
| 622 |
| 23−3/8 |
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| 546 |
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| 23 |
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Page 2
