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3.5 PROCEDURE C
1
Redirect the louvers at the back of the wall sleeve
to 60° angle as shown in the FIG 32. The use of
pliers is recommended.
60°
Rear Louvers
(Top View)
If the wall sleeve already has a rear grille, skip to
2
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.
Place the plastic grille
Fasten the 4 washer screws to secure the grille to
3
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.
Fasten the screws
13 /
7
"
16
60°
FIG. 32
FIG. 33
or
FIG. 34
4
Remove the backing from the Horizontal Insulation
strip 1
3 / 8
x 1
3 / 8
bottom of the sleeve as shown below. Remove the
backing from the Around Insulation strip 1
61
1 /
and attach that to the inside front of the
2
sleeve as shown below.
If the depth of your existing sleeve is less than or
5
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
wall sleeve (inches)
18 D 18-
5
/
18-
5
/
D 19-
8
19-
3
/
D 22
4
6
Remove the backing from the support blocks and
attach them to the inside of the wall sleeve as
shown FIG 37. Slide the baffle into slots of the
support blocks
Wall
Wall
Sleeve
—20—
x 27
3 / 16
and attach that to the inside
Around Insulation
Horizontal Insulation
Length "A"
(inches)
3
/
8
4
1-
3
/
3
/
4
4
4
Baffle
Front
3 / 8
3 / 8
x 1
x
FIG. 35
A
Support
Block
Baffle
A
FIG. 36
(
)
13 /
7
"
16
Support
Block
FIG. 37
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