NuTone 8663RF User Manual

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INSTALLATION INSTRUCTIONS

Bathroom Exhaust Fan/Fluorescent Light Combination

The exhaust fan consists of the housing, power unit/blower assembly (motor, wheel, mounting plate,) grille/lens assembly, reflector/lamp plug assembly (lamps not furnished,) and duct collar.

• WARNING: To reduce the risk of shock, do not use this fan with

any solid-state speed control device.

• Acceptable for use over tub or shower when installed on a GFCI

protected branch circuit.

• Not for use in kitchens. Do not install in a ceiling insulated to a value greater than R-40.

IMPORTANT SAFETY INSTRUCTIONS

WARNING – TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS, OBSERVE THE FOLLOWING:

A. Use this unit only in the manner intended by the manufacturer.

If you have questions, contact the manufacturer.

B. Before servicing or cleaning unit, switch power off at Service Panel

and lock Service Panel to prevent power from being switched on accidentally. When the service disconnecting means cannot be locked, securely fasten a prominent warning device, such as a tag, to the service panel.

CAUTION:

For general ventilating use only. Do not use to exhaust

hazardous or explosive materials and vapors.

INSTALLATION INSTRUCTIONS

WARNING – TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS, OBSERVE THE FOLLOWING:

A. Installation work and electrical wiring must be done by qualified

person(s) in accordance with all applicable codes and standards, including fire-rated construction.

B. Sufficient air is needed for proper combustion and exhausting of

gases through the flue (chimney) of fuel burning equipment to prevent back drafting. Follow the heating equipment manufacturer's guideline and safety standards such as those published by the National Fire Protection Association (NFPA), and the American Society for Heating, Refrigeration and Air Conditioning Engineers (ASHRAE), and the local code authorities.

C. When cutting or drilling into wall or ceiling, do not damage

electrical wiring and other hidden utilities. D. Ducted fans must always be vented to the outdoors. E. If this unit is to be installed over a tub or shower, it must be marked

as appropriate for the application. F. NEVER place a switch where it can be reached from a tub or

shower.

Wiring Knockouts

FIGURE 1

MODEL: 8663RF

Suitable for use in shower or tub enclosure when used with GFCI protected branch circuit.

FOR BEST RESULTS

When installing the Exhaust Fan/Light in a new construction site, install housing during the rough-in construction of the building. The blower unit, reflector and grille should be installed after the finished ceiling is in place.

PLANNING DUCTWORK AND WIRING

DUCTWORK

1. Use 4" round duct.

2. Plan duct run from discharge opening of fan to the outside. For

best fan performance, make duct run as short as possible and use minimum number of elbows.

3. Use optional NuTone ducting accessories as needed.

WIRING

Plan to run 120vAC house wiring (with ground) from power source, through wall switch, to junction box in housing. For separate control of fan and light use an optional NuTone switch. IMPORTANT: Use wire suitable for 90

Housing

Scroll

Slots

Power/Blower

Unit

Reflector Assembly

Wing Nut

Grille/Lens

Assembly

Mounting

Springs (2)

" DIA.

INSTALLATION IN A NEW CONSTRUCTION SITE

PREPARATION

1. Refer to Figure 1. Remove power unit/blower assembly from housing. A. Unplug power unit. B. Remove screw (located next to plug-in receptacle) which holds

power/blower unit mounting plate in place. Save screw.

C. Lift mounting plate at end near the plug-in receptacle until

blower wheel clears the scroll.

D. Remove plate by pulling its tabs out of slots in housing. Set

power/blower unit aside until needed.

MOUNTING THE HOUSING

MOUNTNG USING MOUNTING TABS

Refer to Figure 2.

1. Locate fan housing next to ceiling joist.

2. Use wood screws (not provided) to loosely attach housing to ceiling joist through the keyhole slots in mounting tabs.

3. Adjust housing so that it will be flush with finished ceiling. For the grille to fit properly, the housing's rim must not extend beyond finished ceiling surface.

4. When housing is properly adjusted, tighten screws in slots.

MOUNTING USING HANGER BARS

Refer to Figure 3.

1. Insert hanger bars in slots provided in housing.

2. Locate fan housing between joists so that the bottom of the housing is even with the planned finished ceiling. Extend the hanger bars to the joists.

3. Use screws or nails (not provided) to secure hanger bars to ceiling joists.

INSTALLING DUCTWORK

1. Refer to Figure 2. Place duct collar over flanges at discharge opening of fan. Secure collar by snapping tabs into slots in flanges.

2. Run 4" round duct from fan's discharge opening to the outside and terminate.

3. Connect duct to fan's duct collar.

WIRING

All wiring must comply with local codes and unit must be

properly grounded.

1. Run 120vAC house wiring (with ground) from wall switches to fan location.

2. Insert and secure an approved box connector into wiring entrance hole.

3. Pull wires through box connector and into junction box. Tighten box connector.

4. Refer to Figures 4 and 5. If a single switch will be used to control both the fan and the light, make wiring connections as shown in Figure 4. If a double switch will be used for separate control of the fan and light, make connections as shown in Figure 5.

5. Connect the green (or bare) ground wire to the green ground lead.

POWER/BLOWER UNIT INSTALLATION

1. Refer to Figure 1. Place power/blower unit into housing so that mounting plate's tabs insert into slots in housing.

2. Press other end of mounting plate down until it is firmly seated over scroll and plug-in receptacles.

3. Secure mounting plate to housing with provided screw.

4. Insert motor plug into junction box receptacle.

FIGURE 3

FIGURE 5FIGURE 4

EARTH

GROUND

EARTH

GROUND

120vAC,

60 Hz

HOUSE

POWER

STANDARD WALL SWITCH

(NOT INCLUDED)

STANDARD WALL SWITCH

(NOT INCLUDED)

120vAC,

60 Hz

HOUSE

POWER

FAN FAN

SWITCH

BOX

SWITCH

BOX

LIGHT LIGHT

FIGURE 2

Duct Collar

Flanges

Wirng Knockouts

Mounting Tabs

Bottom Rim

FAN LIGHT

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