Friedrich Thru-the-Wall Serie Guía De Instalación Y Funcionamiento página 14

PROCEDURE B
Redirect the louvers at the back of the wall
1
sleeve to 60° angle as shown in the FIG 9. The
use of pliers is recommended.
60°
Rear Louvers
(Top View)
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 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
Fasten the 4 washer screws to secure the grille
3
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.
Bracket
Fasten the screws and the bracket
3 /
7 "
32
60°
FIG. 9
FIG. 10
Bracket
or
FIG. 11
Remove the backing from the Vertical Insulation
4
strip 15 9 / x 1 3 / x 1
16 8
inside right of the sleeve as shown below.
Remove the backing from the Around Insulation
strip 67 1 / x 1 3 / x
8 8
inside front of the sleeve as shown below.
Around Insulation
Vertical Insulation
Remove the metal rear grille and replace it with
5
the plastic rear grille to improve unit energy
efficiency. The plastic grille reduces the amount
of hot air discharge that recirculates through the
unit.
If the depth of your existing wall sleeve is less
6
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
wall sleeve (inches)
18 D 18- 5 /
8
5 3
18- / D 19- /
8 4
19- 3 / D 22
4
14
3 / and attach that to the
8
25 / and attach that to the
32
Indoor Outdoor
9 1 / "
2
FIG. 12
Plastic rear grille
Steel rear grille
FIG. 13
A
Length "A"
(inches)
Support
Block
3 /
4
1- 3 /
Baffle
4
4 A
FIG. 14
6"