NuTone QT-9093 User Manual

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NuTone QT-9093 User Manual

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INSTALLATION INSTRUCTIONS

Heat-A-Ventlite®

MODELS: QT-9093 SERIES

SCREWS

 

HEATER

IMPORTANT: DO NOT MOUNT OVER TUB

OR IN SHOWER STALL ENCLOSURE.

PRECAUTIONS

Observe all requirements in this instruction sheet and all markings appearing on the unit.

Check all operations of the unit after installation has been completed.

The heater housing must be grounded and the wiring must comply with all local electrical codes.

The flange of the rough-in housing MUST be flush with the finished

 

 

plaster or drywall surface to assure proper and absolutely safe operation.

 

 

If plaster material, paint base or paint is sprayed on the walls or ceiling,

 

 

the inside of the housing must be masked off to prevent this material

 

 

from entering the housing.

 

HEATER

 

The switch (furnished) must be wired in accordance with the

 

SCREWS

FIGURE 1

wiring diagram.

 

 

 

For installation in sloped ceilings up to 12/12 pitch.

 

 

Ductwork must point up.

 

13" DIA.

 

 

 

 

PREPARATION

 

 

 

Refer to Figure 1.

 

 

 

1. Loosen two screws holding grille in place. Remove grille and set aside. Remove housing,

 

 

switch assembly, hanger bar and mounting brackets from carton.

 

 

2. Loosen four (4) screws holding heater power unit in place. Remove heater power unit and

 

 

set aside.

 

 

 

MOUNTING TO OPEN JOISTS IN NEW CONSTRUCTION

 

 

1. Install hanger brackets in keyhole slots in housing. Insert hanger bar through bracket opposite

 

 

blower vent.

 

 

 

2. Refer to Figure 2. Position housing between joists with exhaust vent in desired direction.

 

 

 

Secure side hanger brackets and ends of

 

 

 

adjustable hanger bar to joists with screws or nails.

14" DIA.

 

 

If joist spacing is greater than 16" O.C., construct

FIGURE 2

 

framing to support sides of housing,

 

 

 

 

 

(Refer to Figure 3). Position housing against joists

 

 

 

and secure with wood screws through keyhole

 

 

 

slots in housing.

 

 

 

3. Loosen screws securing hanger brackets to

 

 

 

housing and adjust height of housing so that

 

 

 

bottom flange will be flush with finished ceiling.

 

 

 

Tighten screws securely.

 

 

 

4. Attach 4" round duct and run ductwork to the

 

FIGURE 3

 

outside through wall or roof.

 

 

 

 

 

WIRING

 

 

 

115-120 volts (20 amp circuit only), 12 gauge wire.

 

 

 

1. Remove desired knockout from junction box and install a box connector (not provided).

 

2. Refer to Figure 4. Run 120vAC supply wiring to wall switch box. Run wiring from wall switch box to

 

heater. Five conductors plus ground are required for independent operation of all functions.

 

3. When a thermostat or timer switch is used, connect at point marked “T” on Figure 4.

 

4. Make wiring connections using wire nuts. Connect ground wire under ground screw in junction box.

FIGURE 4

5. Push wiring back into junction box and install junction box cover being careful not to pinch wiring

between cover and housing. Secure cover.

 

 

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