NuTone HEAT-A-VENT COMBINATION 9905 - Manual

INSTALLATION INSTRUCTIONS
READ & SAVE THESE INSTRUCTIONS!
®
Heat-A-Vent ®
Combination
MODEL: 9905
FOR BEST RESULTS
In a new construction site, install the housing (complete
with heater and ventilator) during rough-in construction of
the building. The grille should be installed when the finished
ceiling is in place.
Installation in an existing, finished building requires an
accessible area (attic or crawl space) above the planned
location. See “INSTALLATION IN EXISTING
CONSTRUCTION.”
Do not install closer than 12 inches to a vertical surface.
Do not install over tub or shower enclosure.
UNIT DIMENSIONS
Refer to Figure 1 for housing’s dimensions.
NOTE: If there will be a finished second floor above,
the Model 9905 housing requires a minimum of 2" x 8"
joist construction for mounting.
WIRING AND DUCTWORK
1. Run the required wiring during rough-in stage of construction.
2. Total connected load: 1630 watts.
3. Plan to run 120vAC, 60 Hz wiring (with ground) on a
separate 20 Amp circuit from a power source, through
the provided wall switch, to the housing’s junction box.
See wiring diagram.
4. Use 4" round duct.
INSTALLATION IN
NEW CONSTRUCTION
PREPARATION
1. Loosen hanger bar brackets to allow bars to be inserted.
2. Refer to Figure 2. Insert hanger bars into brackets.
3. Refer to Figure 3. Slide hanger bar brackets down to end
of slot closest to outside edge of housing. Tighten brackets
in this position.
4. Refer to Figure 4. Remove junction box cover by
removing one screw.
5. Refer to Figure 4. Remove appropriate wiring knockout(s)
and install approved box connector(s).
FIGURE 1
FIGURE 2
FIGURE 3 FIGURE 4
7 3 ⁄ 4 "
14"
HANGER BARS
ADJUSTMENT
SLOT
JUNCTION
BOX
COVER
VENT
HEAT
KNOCKOUTS
9 3 ⁄ 4 "