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1. This unit is designed for installation in standard double hung windows
with actual opening widths of 21
to 35 . The upper and lower sash
must open sufficiently to allow a clear vertical opening of 12
from the
bottom of the sash to the window stool.
2. If storm window presents interference, fasten a 2
wide wood strip(not
included) (OUTER SILL) to the inner window sill across the full width of
the sill. The wood strip should be thick enough to raise the height of
the window sill so that the unit can be installed without interference by
the storm window frame (STORM WINDOW FRAME) or wood strip
(OUTDOORS) to help condensation to drain properly to the outside.
3. Install a second wood strip (approximately 6
long by 3/2 wide and
same thickness as first strip) in the center of the outer sill flush against
the back off the inner sill. This will raise basepan angle .
4. If the distance between STORM WINDOW FRAME and WOOD STRIP
MOUNTED ON TOP OF INNER SILL is more than 1
, two of wood
strip are not necessary.
INNER
SILL
OUTER
SILL
I
N
D
O
O
R
S
O
U
T
D
O
O
R
S
WOOD STRIP
MOUNTED ON
TOP OF INNER SILL
WOOD STRIP
FOR BASEPAN
ANGLE
STORM
WINDOW FRAME
1 MAX.
3/4 CLEARANCE
I
N
D
O
O
R
S
O
U
T
D
O
O
R
S
INNER
SILL
OUTER
SILL
LOCATING UNIT IN
WINDOW
Open the window and mark center line on the
center of the inner sill.
CENTER LINE
INNER SILL
INDOOR SIDE
ATTACH BASEPAN
ANGLE
CENTER LINE
SHORT SCREW13/32"
INNER SILL
OUTER SILL
SHORT SIDE
BASEPAN ANGLE
7,5
7,5
OUTSIDE
INSIDE
Install the basepan angle behind the inner window sill, with
the short side of basepan angle as shown. Use the 2 short
screws13/32" provided.
The basepan angle helps to hold unit securely in place.
Be sure to place basepan angle edge flush against back
of inner sill.
2
15