NuTone 671R User Manual

Ventilation fan, For best results, Important safety instructions

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READ & SAVE THESE INSTRUCTIONS!

INSTALLATION INSTRUCTIONS

Ventilation Fan

MODELS: 671R & 672R

    The Exhaust Fan consists of the housing, power unit/blower 

assembly (motor, wheel, mounting plate), grille and duct collar.

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.

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.

FIGURE 1

DUCT COLLAR

COLLIER DE GAINE

COLLARÍN DE TUBO

HOUSING

BOITER

CUBIERTA

SLOTS

FENTES

RANURAS

POWER UNIT/BLOWER

ASSEMBLY

ENSEMBLE MOTEUR/

VENTILATEUR

CONJUNTO DE

UNIDAD DE POTENCIA/

SOPLADOR

MOUNTING TAB

PATTES DE

MONTAGE

LENGÜETA DE

MONTAJE

TABS

PATTES

LENGÜETA

GRILLE

GRILLE

REJILLA

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.

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