NuTone 672R Ventilation Hood User Manual


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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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