PREPARE
WINDOW FOR
INSTALLATION
1. This unit isdesigned 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. Ifstorm window presents interference, fasten a 2" wide wood stri p(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. Ifthe distance between STORM WINDOW FRAME and WOOD STRIP
MOUNTED ON TOP OF INNER SILL is more than 1II , tWO of wood
strip are not necessary.
INNER
SILL
u
D
0
I II OUTER
R
1wMAX,
WOO DSTRIP
MOUNTEDON q P
TOP OF INNERSILLI I 3/4"CLEARANCE
STORM
/ I _1' _ WINDOW FRAME
INNER Iwo0 F)_TRIP k,
SILL I IFORBAfiEPAN ir--rJ
IANGLE II _ T
D I II OUTER D
o t t/ SiLL o
o o
o-q R
s s
LOCATING UNIT IN
WINDOW
Open the window and mark center line on the
center of the inner sill.
INNER SILL
INDOOR SIDE J"
ATTACH BASEPAN
ANGLE
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.
INNER SILL
SHORT SCREW13/32"
OUTER SILL
CENTER LINE
INSIDE
SHORT SIDE
OUTSIDE
BASEPANANGLE
15
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