G43UF / Page 9
DIMENSIONS − INCHES (MM) 1 Bottom Return
Air Opening
1 Bottom Return
Air Opening
ELECTRICAL INLET
(Either Side)
SUPPLY AIR
OPENING
AIR FLOW
FRONT VIEW SIDE VIEW
TOP VIEW
A
B9/16 (14)
C3/4 (19)
3/4 (19)
28−1/2
(724)
19−7/16
(494)
23−1/2
(597)
4−1/4
(108)
11−5/8 (295)
Right
9−3/4 (248)
Left
4−7/8 (124) Right
2−1/4 (57) Left
40
(1016)
4
(102)
1−15/16 (49)
23
(584)
14
(356)
9/16
(14)
16
(406)
14−3/4
(375)
5/8 (16)
23-3/4 (603)
25 (635)
GAS PIPING INLET
(Either Side)
EXHAUST AIR OUTLET
(Either Side)
CONDENSATE
TRAP CONNECTION
(Either Side)
2−1/2
(64)
18-3/4 (476)
2 OPTIONAL
EXTERNAL
SIDE RETURN
AIR FILTER KIT
(Either Side)
1 OPTIONAL
RETURN CUTOUT
(Either Side)
2 Optional External Side Return Air Filter Kit is not for use with the
optional RAB Return Air Base.
1 NOTE − 60C and 60D size units that require air volumes over
1800 cfm (850 L/s) must have one of the following:
a.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.
b.Single side return air with optional RAB Return Air Base
c. Bottom return air.
d.Return air from both sides.
e.Bottom and one side return air.
See Blower Performance Tables for additional information.
COMBUSTION AIR INTAKE
(Either Side)
6−1/2
(165)
4−1/8
(103) 6−3/4
(171)
3−1/8
(79)
2 OPTIONAL
EXTERNAL
SIDE RETURN
AIR FILTER KIT
(Either Side)
Model No
A B C
M
o
d
e
l
N
o. in. mm in. mm in. mm
G43UF−24B−045
G43UF−24B−070
G43UF−36B−070
17−1/2 446 16−3/8 416 16 406
G43UF−36C−090
G43UF−48C−090
G43UF−48C−110
G43UF−60C−110
21 533 19−7/8 454 19−1/2 495
G43UF−60D−135 24−1/2 622 23−3/8 546 23 584