a. Cut double-sided adhesive tape to proper length.
b. Apply double-sided adhesive tape to top of plenum flange.
c. Cut insulation to proper length.
d. Remove protective backing from double-sided tape to expose adhesive.
e. Apply insulation to adhesive tape. Insulation must be properly installed to ensure an adequate seal and prevent air leakage between
plenum and furnace. (See Fig. 4.)
7. Refer to the furnace Installation Insturctions to complete the furnace installation.
Fig. 1—Assembled Subbase
Table 1—Dimensional Data
FURNACE WIDTH
PLENUM OPENING*
FRAMED FLOOR HOLE
HOLE NO. FOR WIDTH ADJUSTMENT
A
B
C
D
14-3/16
11-13/16
19
13-7/16
20-3/8
4
17-1/2
15-1/8
19
16-3/4
20-3/8
3
21
18-5/8
19
20-1/4
20-3/8
2
24-1/2
22-1/8
19
23-3/4
20-3/8
1
A88202
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