Broan-NuTone 744 Instrucciones

Models 744 / 744NT Recessed Fan / Light
Register this product at www.broan.com/register. For Warranty
Statement, or to order Service Parts: go to www.broan.com or www.
nutone.com and type the Model in the "Model Search" field at the top of
the page. Broan, 926 W. State Street, Hartford, WI 53027 800-637-1453
READ AND SAVE THESE INSTRUCTIONS
WARNING
TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO
PERSONS, OBSERVE THE FOLLOWING:
1. Use this unit only in the manner intended by the manufacturer. If
you have questions, contact the manufacturer at the address or
telephone number listed in the warranty.
2. Before servicing or cleaning unit, switch power off at service panel
and lock the service disconnecting means 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.
3. Installation work and electrical wiring must be done by a qualified
person(s) in accordance with all applicable codes and standards,
including fire-rated construction codes and standards.
4. Sufficient air is needed for proper combustion and exhausting of
gases through the flue (chimney) of fuel burning equipment to pre-
vent backdrafting. 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.
5. When cutting or drilling into wall or ceiling, do not damage elec-
trical wiring and other hidden utilities.
6. Ducted fans must always be vented to the outdoors.
7. 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 Interrupter) - protected branch circuit.
8. Never place a switch where it can be reached from a tub or shower.
9. Install this unit in a flat ceiling only.
10. For use in non fire rated installations only.
11. Not for use in environmental air handling spaces.
12. CAUTION - RISK OF FIRE AND PERSONAL INJURY: 75W
MAX. LAMP. Use R30, BR30, PAR30L, or PAR30LN lamps only
(75W Max.). For wet locations (tub or shower) - use PAR30L or
PAR30LN (75W Max.) lamp only. Use no other lamp types. Do
not install a lamp indentified for use only in enclosed luminaries.
13. Do not install in a ceiling thermally insulated to a value greater
than R60.
14. This unit must be grounded.
!
CAUTION
1. For general ventilating use only. Do not use to exhaust hazardous
or explosive materials and vapors.
2. To avoid motor bearing damage and noisy and/or unbalanced
impellers, use the cardboard protector (provided) to keep drywall
spray, construction dust, etc. off power unit.
3. Please read specification label on product for further information
and requirements.
OPERATION
The fan and light can be operated using various combinations of on/
off switches and timer controls:
• Fan and light controlled with single on/off switch
• Fan and light controlled with separate on/off switches
• Fan controlled with on/off switch - light with dimmer switch
• Fan controlled with timer control
Do not use a speed control to operate the fan in this unit.
See "Connect Wiring" section for various wiring options.
CLEANING
To clean trim ring / baffle: Vacuum with a soft brush attachment or
remove trim ring / baffle and clean with a soft cloth and mild soap
or detergent. Dry thoroughly before reinstalling.
To clean inside of housing: Remove trim ring / baffle and vacuum
inside of housing with a soft brush attachment.
MAINTENANCE
Motor is permanently lubricated. Do not oil or disassemble motor.
See "Service Parts" section for a list and illustrations of service parts.
PLAN THE INSTALLATION
POWER
The unit can
CABLE
4" ROUND
be installed
DAMPER/DUCT
anywhere CONNECTOR
between ceiling
CEILING
joists using
JOIST
mounting
brackets
provided.
* Install in a flat
ceiling only.
*
FINISHED CEILING
ROOF CAP
4-IN. ROUND
DUCT **
4-IN. ROUND
**
ELBOW
Two of the most common ways to connect ductwork to the unit.
The unit will operate most quietly and efficiently when located where
the shortest possible duct run and minimum number of elbows will
be needed.
Plan to supply the unit with proper line voltage and appropriate
power cable.
The unit must not
be installed above or
inside the cooking
area shown.
INSTALLATION
CARDBOARD PROTECTOR
1. Install mounting brackets.
Slide the adjustable mounting brackets into the bracket channels
on the housing.
Bend the tabs on the cardboard protector and insert protector into
opening in housing.
NOTE: The cardboard protector shields the inside of the housing
from drywall spray and construction dust. Do not remove it until
after construction is completed.
2. Mark mounting location.
Position unit between joists and extend mounting brackets.
IMPORTANT: Position brackets so there will be an 1/8" gap
between bottom of housing and ceiling material. Mark the top of
keyhole slot on all four mounting brackets.
3. Pound in nails.
Remove unit temporarily, and pound
nails partially into joists at all four
marked locations.
4. Hang and secure housing.
Hang unit from nails. Check to make
sure that there will be a 1/8" gap
between bottom of housing and
ceiling material. Pound nails tight.
For wide joist centers: A #8 x 3/8
self-tapping screw can be used to
join extended brackets together and
create a rigid mount. To ensure a
noise-free mount, crimp the bracket
channels tightly around mounting
brackets.
Typical Installation
HOUSING
MOUNTING
BRACKET
5. Attach damper/duct connector.
Snap the damper/duct connector onto housing. Make sure that
tabs on the connector lock in housing slots. (Top of damper/duct
TRIM RING / BAFFLE
connector will be flush with top of housing.) Install ductwork.
**
**
Purchase separately
NOTE: Make sure damper flap is in
place inside of duct connector. If it
is not: 
connector to
place.
WALL
**
CAP
COOKING AREA
Do not install above
or inside this area
45
45
Cooking
Equipment
Do not install in a cooking area.
1/8" GAP
FLUSH
Squeeze top and bottom of
‚ snap flap back into
HORIZONTAL POWER
CABLE CONNECTION
Floor
6. Choose power cable direction.
Remove wiring plate. When re-attached, the wiring plate allows the
power cable to enter unit horizontally or vertically.
7. Connect wiring.
Unit can be wired from outside of housing as shown. Use UL approved
connectors to wire per local codes.
BLUE AND RED
TO BLACK
WHITE
TO
WHITE
WIRING PLATE
Fan and Light operated with single on/off switch
BLUE (FAN)
TO
BLACK
WHITE
TO
WHITE
WIRING PLATE
Fan operated with separate on/off switch or timer.
Light operated with separate on/off switch
FINISHED
CEILING
MATERIAL
CLEARANCE
HOLE
8. Finish ceiling.
Cut an opening in finished ceiling material for housing collar.
SPRINGS
9. Attach trim ring / baffle to housing.
Remove the cardboard protector from inside the housing collar.
Insert one end of each spring into the holes on the lamp bracket.
Center trim ring / baffle in ceiling opening.
10. Install bulb.
CAUTION - RISK OF
FIRE: 75W MAX. LAMP
Use R30, BR30,
PAR30L, or PAR30LN lamps
only (75W Max.).
For wet locations (tub or
shower) - use PAR30L or
PAR30LN (75W Max.) lamp
only. Use no other lamp types.
Do not install a lamp indentified
for use only in enclosed
luminaries.
VERTICAL
POWER CABLE
CONNECTION
TOP / BACK
OF HOUSING
GROUND TO
WIRING PLATE
2-WIRE PLUS
GROUND
POWER
CABLE
TOP / BACK
OF HOUSING
RED (LAMP) TO RED
GROUND TO
WIRING PLATE
3-WIRE PLUS
GROUND
POWER
CABLE
or dimmer switch.
HOUSING
COLLAR
TRIM RING /
BAFFLE
LAMP
BRACKET
1102397A