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PROCEDURE C
Redirect the louvers at the back of the wall
sleeve to 60° angle as shown in the FIG 13.
The use of pliers is recommended.
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 26-1/2" wide
and 15-1/2" high. Place the plastic grille to the
inside of the wall sleeve at the rear flange.
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 installed from the inside of the
sleeve and are pressed into the square holes of
the rear flanges.
Remove the backing from the Horizontal
Insulation strip 1
3
/
8
x1
3
/
8
x27
3
/
16
and attach that
to the inside bottom of the sleeve as shown
below. Remove the backing from the Around
Insulation strip 1
3
/
8
x1
3
/
8
x61
1
/
2
and attach that
to the inside front of the sleeve as shown below.
If the depth of your existing 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.
Remove the backing from the support blocks
and attach them to the inside of the wall sleeve
as shown FIG 18. Slide the baffle into slots of
the support blocks
Depth"D" of the existing
wall sleeve (inches)
Length "A"
(inches)
Support
Block
Baffle
A
A
3
/4
1-
3
/4
4
18 D 18-
5
/
8
18-
5
/
8
D 19-
3
/
4
19-
3
/
4
D 22
Wall
Wall
Sleeve
Baffle
Front
Support
Block
(
7
13
/
16
"
)
FIG. 18
FIG. 17
-10-
INSTALLATION
1
4
2
3
FIG. 14
Around Insulation
Horizontal Insulation
FIG. 16
or
FIG. 15
Rear Louvers
(Top View)
60°
7
13
/
16
"
60°
FIG. 13
5
6
Place the plastic grille
Fasten the screws
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