3.4 PROCEDURE B
1 Redirect the louvers at the back of the wall sleeve to 60° angle as shown in the FIG 25. The use of pliers is recommended.
| 7 5/16" |
60° | 60° |
Rear Louvers
(Top View)
FIG. 25
2 If the wall sleeve already has a rear grille, skip to step 4. If the wall sleeve does not have a rear grille or louvered panel, install the plastic grille from the kit. Cut the plastic grille to
4 Remove the backing from the Horizontal Insulation strip 13/8 x 5/8 x 273/16 and attach that to the inside bottom of the sleeve as shown below. Remove the backing from the Around Insulation strip 13/8 x 3/4 x 611/2 and attach that to the inside front of the sleeve as shown below.
Around Insulation
Horizontal Insulation
FIG. 28
5 If the depth of your existing wall sleeve is less than or equal to 18", skip to step 7. Otherwise, cut the baffles and the support blocks according to length "A" in the table below.
Depth"D" of the existing | Length "A" | |
wall sleeve (inches) | (inches) | |
|
|
|
18 D | 3/4 | |
D | ||
D 22 | 4 | |
|
|
|
A
Support
Block
Baffle
A
FIG. 29
Place the plastic grille | FIG. 26 |
3 Fasten the 4 washer screws to secure the grille to the wall sleeve. If you need plastic nuts to mount plastic grille to the inside of the wall sleeve, there are plastic nuts in the installation kit. The nuts are
6 Remove the backing from the support blocks and attach them to the inside of the wall sleeve as shown FIG 30. Slide the baffle into slots of the support blocks.
installed from the inside of the sleeve and are pressed into the square holes of the rear flanges.
or |
Wall
Baffle
Wall
Sleeve
Front
(7 5/16")
Support Block
Fasten the screws | FIG. 27 |
FIG. 30
7 Install the new unit into the wall sleeve.
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