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FIG. 13
c. EVENLY tighten the bolts to a torque of
40 to 50 inch pounds. This will compress
the roof gasket to approximately 1/2". The
bolts are self locking so further tightening
is not necessary. See FIG. 13.
If bolts are left loose there may not be an ad-
equate roof seal or if over tightened, damage
may occur to the unit base or ceiling template.
Tighten to torque specifications listed in this
manual.
K. Air Distribution Box Installation
1. Remove return air grill from air distribution box by
pulling in on half round finger catches. See FIG.
14.
FIG. 14
Half Round
Catches
Return Air Grill
2. Hold air distribution box up to ceiling template
and install three (3) #10 x 3/8" screws at air distri-
bution box mounting point. See FIG. 15.
Fig. 15
Wood
Screws
Screws
3. Snap hole plug into place at rear of air distribution
box. See FIG. 16
4. There are four optional mounting holes on the
outer edge of the return air opening for which
screws are not provided. These are only required
where an uneven ceiling does not allow proper
fitting of the air distribution box. See FIG. 16.
Fig. 16
Wood
Screw
Plug
5. Reinstall return air grill and filter into air distribu-
tion box.
6. Verify that all features of the installed system
work. Please read Unit User's Guide or Operating
Instructions before proceeding. Check fan speed,
heat strip (if applicable), furnace operation (if ap-
plicable) and cooling operation. If the features do
not work disconnect the 12 VDC and 120 VAC
power supplies and verify that all wiring is correct.
9
Wood
Screw
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