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Unit Dimensions
NOTE - 5C (5 Ton) size units installed in upflow applications that
1
require air volumes of 1800 cfm (850 L/s) or greater 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 air with optional "RAB" 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.
Optional External Side Return Air Filter kit is not for use with
2
optional Return Air Base.
* Consider sizing requirements for optional IAQ equipment before
cutting side return opening.
A
B
3/4
C
(19)
Bottom Return
1
Air Opening
Front View
Capacity
045-3B
070-3B
090-4C
110-5C
Page 2 of 56
9/16
(14)
Optional
2
Side Return
Air Filter Kit
(either side)
33
(838)
14-3/4
(375)
16
(406)
3/4
5/8
(19)
(16)
A
in.
mm
17-1/2
446
16-3/8
21
533
19-7/8
3-3/8
(86)
2 (51)
D
Combustion
Air Intake
Optional
2
Side Return
Air Filter Kit
(either side)
1 (25)
Front Panel
9 (229) Right
6-9/16 (167) Left
12-5/8 (321)
(either side)
Electrical Inlet
(either side)
3-1/4
(83)
B
in.
mm
in.
416
16
505
19-1/2
Issue 2223
Top View
Exhaust Air
Outlet
Supply Air
Opening
2-7/8
(73)
23-3/4 (603)
25 (635)
27-3/4 (705)
19-7/16 (494)
2 (51) (either side)
Gas Piping Inlet
(either side)
Condensate
Trap Connection
(either side)
6-1/2 (165)
(either side)
23
(584)
14
Side Return
1
(356)
Air Opening
(either side)
1-15/16 (49)
23-1/2 (597)
Bottom Return
1
Air Opening
Side View
C
mm
in.
406
7-5/8
495
9-3/8
507768-05G / 31-5000655
9/16
(14)
1-1/2
(38)
D
mm
194
238
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