READ & SAVE THESE INSTRUCTIONS!
INSTALLATION INSTRUCTIONS
®
Bathroom Exhaust
Fan/Light
Combination
• Suitable for use in insulated ceilings.
• Not for use in kitchens.
WARNING: To reduce the risk of fire or electrical shock, do not
use this fan with any solid-state speed control
device.
WARNING: To reduce the risk of shock, disconnect power
before servicing. Do not install in a ceiling insulated
to a value greater than R-40.
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.
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.
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.
F. NEVER place a switch where it can be reached from a tub or
shower.
MODEL: 8663RM SERIES
Suitable for use in shower or tub enclosure when used
with a GFI circuit.
FOR BEST RESULTS
When installing the Exhaust Fan/Light in a new construction site,
install housing during the rough-in construction of the building. The
blower unit and grille should be installed after the finished ceiling is
in place.
PLANNING DUCTWORK AND WIRING
DUCTWORK
1. Use 4" round duct.
2. Plan duct run from discharge opening of fan to the outside.
3. Use optional NuTone ducting accessories as needed. Refer to
NuTone's catalog for a complete listing of available accessories.
WIRING
IMPORTANT:
Use wire suitable for 90°C.
Plan to run 120vAC house wiring (with ground) from power source,
through wall switch, to junction box in fan housing. For separate
control of fan, and light use an optional NuTone switch.
INSTALLATION IN A NEW
CONSTRUCTION SITE
PREPARATION
1.
Refer to Figure 1.
Remove power unit/blower assembly from
housing.
A. Unplug power unit.
B. Remove screw (located next to plug-in receptacle) which holds
power/blower unit mounting plate in place. Save screw.
C. Lift mounting plate at end near the plug-in receptacle until
blower wheel clears the scroll.
D. Remove plate by pulling its tabs out of slots in housing. Set
power/blower 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. Use wood screws (not provided) to loosely attach housing to ceiling
joist through keyhole slots in mounting tabs.
3. Adjust housing so that it will be flush with 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.
MOUNTING USING HANGER BARS
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 1.
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 fan's discharge opening to the outside and
terminate.
3. Connect duct to fan's duct collar.
