507330-01B
Page 2 of 33
Issue 1809
Top
View
Right Side
View
Bottom
View
Front View
C
23-1/2
(597)
25 (635)
D
3-1/4
(83)
23
(584)
14
(356)
15-1/2
(394)
23-7/8
(606)
30
(762)
26
(660)
19-1/2 (495)
28-3/8 (721)
B
33
(838)
A
1
NOTE
-C*20 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) air filter.
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.
2
Flue outlet may be horizontal but furnace must be vented
vertically.
3
Optional external side return air filter kit cannot be used with
the optional RAB Return Air Base.
*
Consider sizing requirements for optional IAQ equipment before
cutting side return opening.
Unit Dimensions
BG801UHE
Capacity
A
B
C
D
in.
mm
in.
mm
in.
mm
in.
mm
070-12
14-1/2
368
13-3/8
340
13
330
4-3/4
121
090-16
090-20
17-1/2
446
16-3/8
416
16
406
6-1/4
159
110-20
21
533
19-7/8
504
19-1/2
495
8
203
