PLANNING DUCTWORK AND WIRING
DUCTWORK
1.Use 4" round duct.
2.Plan to run duct from the fan's discharge opening 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 (refer to NuTone's catalog for a complete listing of optional accessories).
WIRING
Plan to run 120vAC house wiring (with ground) from a power source, through a standard wall switch or an optional NuTone double FAN/LIGHT switch, to the junction box in the
INSTALLATION IN A NEW
CONSTRUCTION SITE
PREPARATION
1.Unplug the power unit.
2.Refer to Figure 1. Remove power unit/blower assembly from the housing. Remove screw and pull power unit assembly tabs out of slots in housing. Set unit aside until needed.
3.Remove one of the wiring knockouts from housing.
MOUNTING THE HOUSING
USING SIDE MOUNTING TABS
Refer to Figure 2.
1.Locate 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 the finished ceiling.
4.When housing is properly adjusted, tighten screws in slots.
USING HANGER BARS
(Hanger bars sold separately, order model HB4) Refer to Figure 3.
1.Insert hanger bars in slots provided in housing.
2.Locate fan housing between ceiling joists so that bottom of fan housing is even with the planned finished ceiling.
3.Use screws or nails to secure mounting brackets 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.Refer to Figure 4. Run 4" round duct from outside to fan's discharge opening.
3.Connect duct to duct collar.
WIRING |
KNOCKOUTS |
MOUNTING |
TABS |
FIGURE 2 |
HANGER BARS |
(SOLD SEPARATELY) |
FIGURE 3 |
| ROOF CAP |
90° ELBOW | 4" DIAMETER |
DUCT | |
| WALL CAP |
| FIGURE 4 |
