Procedure b – LG BG-81A User Manual
Page 16
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PROCEDURE B
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.
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 25-1/2" wide
and 15-1/4" 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.Fasten the bracket to the
upside of the wall sleeve using the washer
screw. The bracket prevents the unit from
leaving the sleeve.
Remove the backing from the Vertical Insulation
strip 15
9/16
x 1
3/8
x 1
3/8
and attach that to the
inside right of the sleeve as shown below.
Remove the backing from the Around Insulation
strip 67
1/8
x 1
3/8
x
25/32
and attach that to the
inside front of the sleeve as shown below.
If the depth of your existing wall sleeve is less
than or equal to 18", skip to step 7. Otherwise,
1
4
2
3
FIG.
25
Around Insulation
Vertical Insulation
9
1
/
2
"
6"
Indoor
Outdoor
FIG.
27
or
Bracket
Bracket
FIG. 26
Rear Louvers
(Top View)
60
°
60
°
7
3/32
"
Rear Louvers
(Top View)
60
°
60
°
7
3/32
"
FIG.
24
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
Depth"D" of the existing
wall sleeve (inches)
Length "A"
(inches)
5
Place the plastic grille
Fasten the screws and the bracket
cut the baffles and the support blocks according
to length "A" in the table below.
FIG. 28
Around Insulation
Vertical Insulation
3
/
4
1-
3
/
4
4
18 D 18-
5
/
8
18-
5
/
8
D 19-
3
/
4
9
1
/
2
"
6"
Indoor
Outdoor
19-
3
/
4
D 22