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.

MOUNTING THE HOUSING

MOUNTNG USING MOUNTING TABS

Refer to Figure 2.

Duct Collar

Flanges

Wirng Knockouts

Mounting Tabs

1.Locate fan housing next to ceiling joist.

2.Use wood screws (not provided) to loosely attach housing to ceiling joist through the 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 2. 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.

Bottom

Rim

FIGURE 2

FIGURE 3

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 4 and 5. If a single switch will be used to control both the fan and the light, make wiring connections as shown in Figure 4. If a double switch will be used for separate control of the fan and light, make connections as shown in Figure 5.

5.Connect the green (or bare) ground wire to the green ground lead.

POWER/BLOWER UNIT INSTALLATION

1.Refer to Figure 1. Place power/blower unit into housing so that mounting plate's tabs insert into slots in housing.

2.Press other end of mounting plate down until it is firmly seated over scroll and plug-in receptacles.

3.Secure mounting plate to housing with provided screw.

4.Insert motor plug into junction box receptacle.

STANDARD WALL SWITCH

(NOT INCLUDED)

FAN

LIGHT

 

SWITCH

 

BOX

120vAC,

 

60 Hz

 

HOUSE

EARTH

POWER

 

GROUND

 

FIGURE 4

STANDARD WALL SWITCH

(NOT INCLUDED)

FAN

LIGHT

FAN

LIGHT

SWITCH

 

BOX

 

120vAC,

EARTH

60 Hz

GROUND

HOUSE

 

POWER

 

 

FIGURE 5

2

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NuTone 8663RF Installation in a NEW Construction Site, Mounting the Housing, Installing Ductwork, Wiring