NuTone 668RP Quick Start Manual

MODEL 668RP

FAN / LIGHT

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 prevent 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
electrical wiring and other hidden utilities.

6. Ducted fans must always be vented to the outdoors.

7. Acceptable for use over bathtub or shower when installed in

GFCI protected branch circuit.

a

8. If this unit is to be installed over a tub of shower, it must be
marked as appropriate for the application and be connected
to a GFCI (Ground Fault Circuit Interrupter) protected branch
circuit.

9. Do not use this fan with any solid-state speed control device.

10. Never place a switch where it can be reached from a tub or

shower.

11. Use this unit only in the manner intended by the manufac-

turer. If you have questions, contact the manufacturer.

12. This unit must be grounded.

To register this product, visit:

www.nutone.com

CAUTION

Page 1

1. Provide a separate 15 AMP circuit. Use 14 GA. power cable
of type which meets code.

2. This product is designed for ceiling installation only. This prod­uct is designed for installation in ceilings up to a 12/12 pitch.
Ductwork must point up. DO NOT MOUNT THIS PRODUCT
IN A WALL.

3. Install in ceiling only, at least 6” from any wall.

4. For general ventilating use only. Do not use to exhaust haz­ardous or explosive materials and vapors.

5. To avoid motor bearing damage and noisy and/or unbal­anced impellers, keep drywall spray, construction dust, etc.,
off power unit.

6. Please read specification label on product for further infor­mation and requirements.

USE AND CARE

DISCONNECT ELECTRIC POWER SUPPLY BEFORE
CLEANING OR SERVICING THIS UNIT.

TO REPLACE BULB:
Remove lens by gently depressing sides and pull down. Use

bulb rated up to 100 watts only.

TO CLEAN LENS AND GRILLE:
Remove lens as explained above. Remove bulb. Remove acorn

nut in center of light reflector and lower assembly. Unplug light.
CAUTION: Grille and reflector are separate units.
Plastic parts can be cleaned with mild, soapy water and dried

with a soft cloth. DO NOT USE ABRASIVE CLOTHS, STEEL
WOOL PADS, OR SCOURING POWDERS.

TO CLEAN FAN ASSEMBLY:
Unplug fan motor. Remove retaining screws.
CAUTION: Fan assembly will swing downward when screws are

emoved. Support the fan assembly with a free hand while re-

r
moving retaining screws.

Gently vacuum fan, motor and interior of housing. Motor is per­manently lubricated and never needs oiling.

METAL AND ELECTRICAL PARTS SHOULD NEVER BE IM­MERSED IN WATER.

TO REASSEMBLE ALL ABOVE PARTS:
Reverse all procedures explained above. Assemblies should not

be disassembled any further than explained above.

MODEL 668RP

PREPARE THE UNIT

1. Remove the lamp
holder assembly.

2. Remove fan assembly
retaining screws. Lift
fan assembly out of the
housing.

INSTALL THE UNIT

Page 2

For best results, choose a
location which allows fan
to be vented outside with
the shortest possible duct
run and the fewest number
of elbows.

1. Position unit between
joists and extend mount­ing brackets. Position
brackets such that the
bottom edge of housing will be flush with finished ceiling.
Mark the top of keyhole slot on all four mounting brackets.

2. Remove unit tem­porarily, and pound
nails partially into
joists at all four
marked locations.

3. Slide the 4 hanger
bars into the slots
on each end of the
housing - 2 hanger
bars per side.

3. Hang unit from nails and
check if unit will be flush with
finished ceiling. 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.

4. Use a flat-bladed
screwdriver
to remove the
proper electrical
knockouts.

5. Connect
electrical
wiring as
shown.

MODEL 668RP

Page 3

WIRE OPENING

If the switch has not been wired properly and wires need to
be moved:

1. Each wire opening has a release slot.

2. Push a small nail or screwdriver into release slot while
gently removing wire.

3. DO NOT pull any wire out of the switch without using
the release slot. The switch may be damaged.

6. Replace the fan assembly removed in Step 4, under “PRE­PARE THE UNIT” on Page 2. Plug fan assembly into recep­tacle (C) on the the side of the wiring cover. Direct wires away
from blower inlets.

RELEASE SLOT

BLUE

RED

3 WHITE

WIRES

2 GROUND

WIRES

RED

LIGHT

B

C

VENT

7. Install grille and
light reflector.
Plug light into

C

B

receptacle (B).
Tighten acorn
nut securely.
Be careful not
to overtighten
nut and deform
reflector.

Install a 100 Watt

(maximum) light
bulb.

2 BLACK

WIRES

8. Install light
lens. Gently
squeeze tabs
on lens and
insert them
into the slots
in the grille.

LIGHT

VENT

BLACK

3 GROUND

WIRES

120 VAC LINE IN

2 WHITE WIRES