TM 5-3895-374-24-1
MOUNTING THE UNIT ON CONCRETE BLOCK
WALLS
1 Units are secured to the outside wall surface with
mounting brackets supplied There are brackets for both
sides and the bottom of the unit (Refer to table on Page
4, for dimensions to located mounting brackets)
2 Knock out two sections of block for the discharge and
return air openings Frame In discharge and return air
openings
3 Install the side wall mounting brackets on both sides of
the unit prior to Installing It
CAUTION
Use the holes provided in the air conditioner casing only.
Do not drill any additional holes in the unit casing as the
sealed refrigerant system may be accidentally pierced.
4 Secure lower mounting bracket to wall with 3/e" lag
bolts
5 Lift unit over lip on bottom mounting bracket and
secure It to the wall with 3/S" lag bolts (or other suitable
fasteners) through side mounting bracket holes The
weight of the unit should be supported by the bottom
bracket
6 After mounting the unit on the wall, install metal
weather, stripping at top and sides of unit to insure a
water tight seal
NOTE Ducts through the walls must be insulated and all
joints taped or sealed to prevent air or moisture from
entering the wall cavity
Some Installations may not require any return air duct It
Is recommended that on this type of Installation that a
filter grille be located In the wall Filters must be of
sufficient size to allow a maximum of 400 FPM
(Applicable installation codes may limit an unducted
return air Installation to a single story residence only)
page
3-488)
