NuTone 8663RFT - Manual (Page 2)

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.
1. Run 120vAC house wiring (with ground) from wall switches to fan location.
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 Figures 4A and 4B. If a single switch will be used to control both the
fan and the light, make wiring connections as shown in Figure 4A. If a double
switch will be used for separate control of the fan and light, make connections
as shown in Figure 4B.
5. Connect the green (or bare) ground wire to the green ground lead.
FIGURE 3
FIGURE 2
FIGURE 4A
Duct Collar
FAN
RECEPTACLE
LIGHT
RECEPTACLE
Flanges
Wiring
Knockouts
Mounting
Tabs
Bottom
Rim
FIGURE 4B
SWITCH
GROUND
SCREW
120 VAC
WHITE
B
L
K
B
L
K
WHITE WHITE
BLK
FAN
RECEPTACLE
LIGHT
RECEPTACLE
FAN
SWITCH
GROUND
SCREW
120 VAC
WHITE
B
L
A
C
K
B
L
A
C
K
WHITE WHITE
LIGHT
SWITCH