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PROCEDURE B
H Redirect the louvers at the back of the wall
sleeve to 60 ° angle as shown in the FIG 8. The
use of pliers is recommended.
Rear Louvers
(Top View)
7 51/6"
FIG. 8
I_lf the wall sleeve already has a rear grille, skip
to step 4. If the wall sleeve does not have a rear
grille or Iouvered panel, install the plastic grille
from the kit. Cut the plastic grille to 25-1/2" wide
and 15-1/4" high. Place the plastic grille to the
inside of the wall sleeve at the rear flange.
Place the plastic grille
FIG. 9
I[_ 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.
or
Fasten the screws
FIG. 10
_J Remove the backing from the Horizontal
Insulation strip 13/8x 5/8x 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 61 I/2 and attach that to
the inside front of the sleeve as shown below.
FIG. 11
1_4J Remove the metal rear grille and replace it with
the plastic rear grille to improve unit energy
efficiency. The plastic grille reduces the amount of
hot air discharge that recirculates through the unit.
Plastic rear grille
Steel rear grille
FIG. 12
ir_lf 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"oftheexisting
wallsleeve(inches)
18 <D _<18-5/8
18-5/8<D_<19-3/4
19-3/4<D _<22
Length"A"
(inches)
3/4
1-3/4
4
_ upport
Block
• ._[_ Baffle
_J FIG. 13
-8-
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