507867-02
Page 2 of 55
Issue 1933
Unit Dimensions
1
NOTE
- 20C (5 Ton) size units installed in upflow applications that
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”
R
eturn
A
ir
B
ase.
3.
Bottom return air.
4.
Return air from both sides.
5.
Bottom and one side return air.
See Blower Performance tables for additional information.
2
Optional External Side Return Air Filter kit is not for use with optional
Return Air Base.
* Consider sizing requirements for optional IAQ equipment before
cutting side return opening.
FRONT VIEW
SIDE VIEW
Capacity
A
B
C
D
in.
mm
in.
mm
in.
mm
in.
mm
030-12
045-12
070-12
17-1/2
446
16-3/8
416
16
406
1-5/8
194
090-12
090-16
110-16
110-20
21
533
19-7/8
505
19-1/2
495
9-3/8
238
