NuTone 8663RP, 8664RP User Manual
Ventilation Fan
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INSTALLATION INSTRUCTIONS
Duct
Hanger Bars
Collar
with Light
MODEL: 8663RP, 8664RP
Suitable for use in shower or tub enclosure when used
with GFI protected branch circuit.
Suitable for use in insulated ceilings.
WARNING: To reduce the risk of fire or electrical shock, do not use this
fan with any solid-state speed control device. 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.
G.
For installation in sloped ceilings up to 12/12 pitch.
H.
Ductwork must point up.
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,
reflector and grille should be installed after the finished ceiling is in place.
Refer to instructions on page 3 to install the Exhaust Fan/Light in an exist-
ing finished building.
PLANNING DUCTWORK AND WIRING
1. Use 4” round duct.
2. Plan duct run from discharge opening of fan to the outside. For best fan
performance, make duct run as short as possible and use minimum number of elbows.
3. Use optional NuTone ducting accessories as needed.
Wiring
Knockouts
Housing
Slots
Tabs
Night Light
Socket
(not provided
on 8664RP)
Scroll
Power/Blower
Unit
Reflector
Assembly
Acorn Nut
Mounting
Springs (2)
Grille/Lens
Assembly
FIGURE 1
IMPORTANT: Use wire suitable for 90°C.
Plan to run 120vAC house wiring (with ground) from power source, through
wall switches, to junction box in fan. For separate control of fan, light, and
night light three wall switches are required. See NuTone Catalog for accessory switches. For separate control of fan, light, and night light, five conductors
are needed between the wall switch box and the fan’s junction box. (Night
light not provided on 8664RP).
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
Note: When installing in existing construction, refer to page 3
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 provded in housing.
2. Locate fan housing between joists so that the bottom of the housing is even
with the planned finished ceiling.
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.
WIRING
All wiring must comply with local codes and unit must be properly grounded.
IMPORTANT: Use wire suitable for 90°C.
1. Run 120vAC house wiring from wall switches to fan location, neutral (white),
ground (bare copper), and three switched hot leads. See Figure 4.
2. Insert and secure an approved box connector into wiring entrance hole.
3. Pull wires through box connector and into junction box. Tighten box connector.
4. Refer to Figure 4A. (For 8663RP)
Connect white wires from the fan and light receptacles to white (neutral) wire
from the supply. Connect black wire to wire from fan switch. Connect red wire
to wire from light switch. Connect yellow wire to wire from night light switch.
Refer to Figure 4B. (For 8664RP)
Connect white wires from the fan and light receptacles to white (neutral) wire
from the supply. Connect black wire from fan (BLK) receptacle to wire from fan
switch. Connect blue from light (WH) receptacles to wire from light switch.
5. Connect the green (or bare) ground wire to the green ground lead.
G
R
O
U
N
D
FAN
SWITCH
120 VAC
FAN
RECEPTACLE
B
L
K
WHITE
LIGHT
SWITCH
8663RP
FIGURE 3
LIGHT
RECEPTACLE
R
E
D
NIGHT
LIGHT
SWITCH
FIGURE 4A
Y
E
L
L
O
W
Duct Collar
Flanges
Bottom
Rim
Wiring
Knockouts
Mounting
Tabs
FIGURE 2
G
R
O
U
N
D
FAN
RECEPTACLE
B
L
K
FAN
SWITCH
120 VAC
WHITE
8664RP
LIGHT
SWITCH
LIGHT
RECEPTACLE
B
L
U
FIGURE 4B
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