4
Step 4 – Apply Window Sill Gasket
Raise indoor sash. Measure width of window sash,
including portion inside window track. Cut window sill
gasket (Item 7) to length and apply to rear of window sill
or to wood strip added to sill in Step 3. For mobile home
window, apply gasket to rear of window frame front lip.
Measure width between window moldings to ensure
Instant Mount will fit in window frame. Instant Mount
models are designed for windows 28" to 42" wide.
Instant Mount Kit supplied with unit is designed for
mounting in most double-hung windows without storm
windows. To accommodate unit in window frame with
storm window, modify sill by adding wood strips to inner
and outer sills. This raises unit and eliminates interfer-
ence of storm window frame.
Storm window installation
If storm window frame does not allow adequate clearance
below sill (¼" required), remove storm window frame or
create clearance by adding a wood strip (at least 1-½"
wide) along entire width of sill. Fasten wood strip to sill
with at least 3 countersunk wood screws (not supplied
with kit) to provide smooth surface for mounting air
conditioner.
Mobile home window installation
Add wood strip (at least 1-½" wide) along entire width of
window sill. Thickness of wood strip should match height
of front lip of window frame. Fasten wood strip to sill with
at least 3 countersunk wood screws (not supplied with kit)
to provide smooth surface for mounting air conditioner.
Step 5 – Install Outer Case in Window
Place outer case in window. Lower sash until it rests
behind front flange of top rail. Bottom rail must rest
behind window sill and against window sill gasket
(Item 7).
A.
Storm window frame
B.
Window sill gasket (applied in Step 4)
C.
Window sill
D.
Wood strip added to window sill for ¼" clearance
Storm window installation
A.
Mobile home window frame
B.
Window sill gasket (applied in Step 4)
C.
Wood strip added to window sill
D.
Board thickness to match height of mobile home window frame
Mobile home window installation
A.
Window sill gasket
B.
Window sill
Apply window sill gasket
A.
Top rail
B.
Bottom rail
C.
Window sill gasket
Install outer case in window
INDOOR
OUTDOOR
A
B
1-1/2"
MIN.
C
D
1/4"
MIN.
A
B
OUT
IN
A
B
INDOOR
OUTDOOR
C
OUTDOOR
INDOOR
B
A
¼" MIN.
C
1-½"
MIN.
D
