NuTone 671, 671R, 672R User Manual

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Ventilation Fan

MODELS: 671R & 672R

The Exhaust Fan consists of the housing, power unit/blower assembly (motor, wheel, mounting plate), grille and duct collar.

READ & SAVE THESE INSTRUCTIONS!

INSTALLATION INSTRUCTIONS

DUCT COLLAR

COLLIER DE GAINE

COLLARÍN DE TUBO

FAN MUST NOT BE INSTALLED IN A CEILING INSULATED TO A VALUE GREATER THAN R-40.

SUITABLE FOR USE OVER TUB OR SHOWER ENCLOSURE WHEN INSTALLED IN A GFCI PROTECTED BRANCH CIRCUIT.

FOR BEST RESULTS

When installing the Exhaust Fan in a new construction site, install the housing during the rough-in construction. The blower unit and grille should be installed after the finished ceiling is in place. To install the Exhaust Fan in an existing finished building, an accessible area is required above the planned location (attic or crawl space).

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. WARNING: To reduce the risk of fire or electric shock, do not use this fan with any solid-state speed control.

HOUSING

BOITER CUBIERTA

SLOTS

FENTES RANURAS

TABS

PATTES LENGÜETA

MOUNTING TAB

PATTES DE MONTAGE

LENGÜETA DE MONTAJE

POWER UNIT/BLOWER ASSEMBLY

ENSEMBLE MOTEUR/ VENTILATEUR

CONJUNTO DE UNIDAD DE POTENCIA/ SOPLADOR

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.

GRILLE

GRILLE REJILLA

FIGURE 1

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 and be connected

to a GFCI (Ground Fault Circuit Interrupter) protected branch

circuit. F. NEVER place a switch where it can be reached from a tub or

shower.

PLANNING DUCTWORK AND WIRING

Ductwork

1. Use 4” round duct.

2. Plan to run duct from discharge opening of fan to the outside. For best fan performance, make the duct run as short as possible and use a minimum number of elbows.

3. Use optional ducting accessories as required.

Wiring

Plan to run 120vAC house wiring (with ground) from the power source through a standard wall switch.

Preparation

1. Refer to Figure 1. Remove blower/power unit assembly from the housing.

(a) Unplug the power unit. (b) Remove the screw (located next to plug-in receptacle)

which holds blower/power unit mounting plate in place. Do not misplace this screw.

receptacle until blower wheel clears the scroll.

(d) Remove plate by pulling its tabs out of slots in the

housing. Set blower/power unit aside until needed.

2. Remove one of the wiring knockouts from housing.

MOUNTING THE HOUSING

Mounting Using Mounting Tabs Refer to Figure 2.

1. Locate fan housing next to ceiling joist.

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

3. Adjust housing so that it will be flush with the 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.

FLANGES

COLLERETTES

BRIDAS

WIRING KNOCKOUT

OUVERTURES PRÉAMORCÉES

AGUJERO CIEGO DE CABLEADO

HANGER BARS (SOLD SEPARATELY)

BARRES DE SUSPENSION (VENDUES SÉPARÉMENT)

BARRAS DE SUSPENSIÓN (SE VENDEN POR SEPARADO)

DUCT COLLAR

COLLIER DE GAINE COLLARÍN DEL TUBO

MOUNTING TAB

PATTES DE MONTAGE LENGÜETA DE MONTAJE

FIGURE 2

Mounting Using Hanger Bars (hanger bars sold separately, order model HB4) 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 outside to fan’s discharge opening.

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 switch to fan location.

2. Pull wire through access hole and into junction box.

3. Refer to Figure 4. Use approved wire nuts to connect house supply wires to fixture as follows: white to white; black to black. Connect green or bare ground wire to green ground lead.

JUNCTION BOX

BOÎTE DE JONCTION

CAJA DE CONEXIONES

STANDARD WALL SWITCH (NOT INCLUDED)

INTERRUPTEUR MURAL STANDARD (NON INCLUS)

INTERRUPTOR DE PARED ESTÁNDAR (NO SE INCLUYE)

120vAC, 60Hz HOUSE POWER

COURANT DOMESTIQUE 120V CA, 60 Hz

ELECTRICIDAD DOMÉSTICA: 120 V CA, 60 Hz

FIGURE 3

GREEN GROUND LEAD

VIS VERTE DE MISE À LA TERRE

HILO VERDE DE CONEXIÓN A TIERRA

SWITCH BOX

BOÎTE D’INTERRUPTEUR CAJA DEL INTERRUPTOR

FIELD GROUNDING WIRE

FIL DE MISE À LA TERRE HILO DE CONEXIÓN A TIERRA

FIGURE 4

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