7
INSTALLATION INSTRUCTIONS
4. Remove upper duct from ceiling template and
locate it over blower discharge.
Edges
WITHOUT
flanges install toward
REAR
and
SIDE
of opening. See (FIG. 6).
FIG. 6
Screw
Front
Lower
Upper
Sides Without Tab
To Rear And Side
Of Unit
5. Use two (2) #10 x 10 mm screws to hold duct to
base pan. Screw holes are provided in bottom of
base pan for these screws.
6. Reach up into return air opening of the unit and
pull the unit electrical cord down for later con-
nection. See (FIG. 7).
7. If your installation includes the optional electric
heat kit, install it at this time. Follow the instruc-
tions with the heat package for its installation
procedure.
FIG. 7
Pull Down
Electric Cord
Measure Ceil-
ing Thickness
8. Measure the ceiling to roof thickness:
a. If distance is 25 mm - 51 mm, remove perfo-
rated tabs from both upper and lower ducts.
See (FIG. 7) & (FIG. 8).
FIG. 8
Step a & b
Remove At
Perforation
Step c
Use As
Packaged
Upper Discharge
Air Duct
Lower Discharge
Air Duct
Step a
Remove At
Perforation
b. If distance is 51 mm - 76 mm, remove per-
forated tabs from bottom duct only. See
(FIG. 8).
c. If distance is 76 mm - 102 mm, install ducts
as received. See (FIG. 8).
9. Install ceiling template by sliding lower duct over
upper duct.
10. Hold the ceiling template up to the roof opening.
a. Start each mounting bolt through the ceiling
template and up into the base pan by hand.
See (FIG. 9).
FIG. 9
Mounting
Bolts
Junction
Box
Discharge
Air Duct
Mounting
Bolts
b. Tighten all four (4) bolts until they touch the
template but are not tight.
c.
With the ceiling template flat against the ceil
-
ing install the 6 wood screws (installed sup-
plied) at an angle, so as to stretch and flatten
the template. Three (3) across the front and
three (3) across the back of the template.
See (FIG. 10).