"60C and 60D size units installed in upflow applications
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.
1 Optional External Side Return Air Filter Kit is not for use
with the optional RAB Return Air Base.
,,_ A -_
B-_ _-9/16(14)
t
AIR FLOW
_OPTIONAL
EXTERNAL
SIDE RETURN
AIR FILTER KIT
(Either Side)
SUPPLY AIR
OPENING
t 6-1/2
11-5/8(1 5)
(295) Right
23-3/4 (603)
i_-_ 25 (635)
TOP VIEW
28-1/2
I_ (724)
5-1/2 _ _.,91._ 19-7/16 ._1_
$ r_ COMBUSTION AIR INTAKE
.... _ _ (Either Side)
( ly \ / EXHAUST AIR OUTLET
9- _/_ /_ (Either Side)
GASP,P,NG,NLET
_11_/_f\ (Either Side)
\ .r_ CONDENSATE
L _ TRAPCONNECTION
°Oo_ (Either Side)
_ ELECTRICAL INLET
, ,Ei, er i ei
164) ....
I 23
1OPTIONAL
EXTERNAL
SIDE RETURN
AIR FILTER KIT
(Either Side)
,o
(1016)
'_' 5/8 (16)
--J_l- 3/4 (19)
9-3/4 (248) 4-1/8 6-3/4
Left (103) (171)
4-7/8 (124) Right
2-1/4 (57) Left -I_
18-3/4 (476)
-I_ { 1_2_1_A (584) I
I
*OPTIONAL 14"*
I RETURN CUTOUT
I (Either Side)
L
1-15/16 (49)
Jl---c ---1-
3/4 (19) *Bottom Return 4-1/4 *Bottom Return
Air Opening (108) Air Opening
FRONT VIEW SIDE VIEW
9/16
91-(14)
A B C
Model No.
in. mm in. mm in. mm
G61MPV-36B-045
G61MPV-36B-070 17-1/2 446 16-3/8 416 16 406
G61MPV-36B-071
G61MPV-36C-090
G61MPV-60C-090
G61MPV-60C-091 21 533 19-7/8 454 19-1/2 495
G61MPV-60C-110
G61MPV-60C-111
G61MPV-60D-135 24-1/2 622 23-3/8 546 23 584
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