NuTone 9905 installation instructions For Best Results, Unit Dimensions, Wiring And Ductwork

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INSTALLATION INSTRUCTIONSREAD & 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).

93⁄4"

73⁄4"

14"

FIGURE 1

	HANGER BARS
	FIGURE 2
	VENT
	JUNCTION
	BOX
	COVER
	HEAT
ADJUSTMENT
SLOT
FIGURE 3	KNOCKOUTS
	FIGURE 4