NuTone Ultra-QuieTTest LS80LF Manual De Installation página 2

MOUNTING THE HOUSING
1. Refer to Figure 3. Insert mounting brackets at each end of housing.
2. Place long side of housing parallel to ceiling joist. Position housing in
desired location. Make sure housing flange is even with the planned
finished ceiling.
3. Use screws or nails (not provided) to secure mounting brackets to
ceiling joists.
4. Refer to Figure 1. Use 4" round duct to discharge the ventilator to the
outside.
IMPORTANT: Be sure nothing obstructs the discharge of the
ventilator. Make sure that insulation does not get into the duct
work or into the fan.
WIRING
Refer Figure 2.
1. Run 120v AC house power wiring (with ground) through switch box to
junction box in ventilator housing.
2. Remove ventilator junction box cover.
3. Connect white supply common lead to white leads from fan and light
receptacle. Connect black supply wire from fan switch to black wire
from fan receptacle. Connect black supply wire from light switch to
black wire from light receptacle. Connect supply ground wire to green
ground screw.
4. Replace junction box cover.
NOTE: BE SURE VENTILATOR AND SWITCH ARE PROPERLY
GROUNDED. ALL WIRING MUST COMPLY WITH LOCAL ELECTRICAL
CODES.
BALLAST INSTALLATION
1. Refer to Figure 4. Slide ballast tab into slot in housing side and
secure ballast with mounting screw.
2. Insert the plug from the ballast with white and black leads, into the
three pin receptacle on the wiring compartment cover.
POWER/BLOWER UNIT INSTALLATION
1. Plug motor into socket in housing's junction box.
2. Remove the mounting screw from the housing.
3. Position the power unit in the housing using the guide on the blower
housing to engage the opening in the housing.
4. Slide the blower forward and install the mounting screw securely.
5. Refer to Figure 3. Securely tighten screw.
INSTALLATION IN EXISTING CONSTRUCTION
Installing the ventilator in an existing house requires an accessible
area (attic crawl space) above the planned installation location.
Review "INSTALLATION IN A NEW CONSTRUCTION" and follow all
instructions which apply to your installation.
Location – locate ventilator parallel to a ceiling joist.
Wiring and Ducting – plan ducting and wiring before proceeding with
installation.
Refer to Figure 2 for wiring and Figure 1 for ducting.
CAUTION: Check area above planned installation to
be sure that:
1. Ducting can be installed.
2. Wiring can be run to the planned location.
3. No wiring or other obstructions might interfere with installation.
INSTALLATION FROM ACCESSIBLE
AREA ABOVE
1. From below, drill a small hole in ceiling at the planned location.
Stick clothes hanger through hole to help locate it.
2. Locate hole in attic or crawl space.
3. In attic or crawl space, mark ceiling for cutout by using the housing as
a template. The long side of cutout must be parallel
to ceiling joist.
4. Make cutout along marked line.
NOTE: If ceiling is plaster, cutout should be made from below
to avoid chipping plaster.
5. Install housing, connect wiring and ducting, install power unit/blower
assembly and install grille.
DISCHARGE OPENING
HOUSING
MOUNTING SCREWS
BALLAST ASSEMBLY
BLUE AND RED
WIRES
BLACK AND
WHITE WIRES
MOUNTING
BRACKET
POWER UNIT
GRILLE
NOTCHED BOSS
MOUNTING SPRING
FIGURE 3
FIGURE 4