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MOUNTING THE HOUSING
NOTE: These ventilators are designed for installation
between 16" O.C. ceiling joists with no framing necessary.
If the building structure has 24" O.C. joists construction,
framing will be required.
1. Position housing between ceiling joists and adjust height
to finished ceiling. Loosen two (2) hex nuts for each mounting
bracket from inside the housing and make the adjustment.
Tighten the four (4) hex nuts.
NOTE: There are four (4) additional mounting slots in the
housing for mounting or relocating the mounting brackets.
2. Refer to Figure 4. Screw housing to joists using holes
in mounting brackets and four (4) screws furnished.
3. Install standard 3
1
⁄
4
" x 10" ductwork from damper section
to outside wall or through roof and mount appropriate wall or roof
cap (optional.) Refer to the instructions provided with the caps.
IMPORTANT: Be certain there are not any obstructions at
the discharge of the ventilator. Be certain insulation does not
get into the ductwork or into the blower.
WIRING
NOTE: All wiring connections must comply with local codes,
ordinances and the National Electrical Code and the ventilator
must be properly grounded. Disconnect power at circuit
breaker before making wire connections.
1. Refer to Figure 5. Loosen screws and remove junction box.
2. Run 120vAC supply wiring with ground through switch box to
knockout in ventilator housing and secure with box connector.
3. Refer to Figure 6. Connect supply wires to ventilator wires: black
to black, white to white. Connect ground wire to green ground
screw.
4. Replace junction box and tighten screws.
5. Connect supply wire to switch. NOTE: Switch must be
purchased separately. Refer to NuTone's catalog.
POWER UNIT INSTALLATION
1. Refer to Figure 7. The power unit mounts with two hanger rods
to the mounting brackets. Insert the hanger rods through the
holes in the mounting bracket hooking them from the inside
to the outside.
2. Position the power unit so that its discharge opening is in line
with the installed ductwork. Hold the power unit in position
between the mounting brackets and swing the hanger rods
into the slots on the power unit and securely tighten the wing nuts.
3. Plug the three (3) wire connectors from the junction box
into the wire receptacle connector from the power unit making
sure the plug is properly aligned.
FIGURE 4
FIGURE 5
FIGURE 6
MOUNTING
BRACKET
VENTILATOR
HOUSING
JUNCTION
BOX
GREEN
GREEN
GROUND
SCREW
WHITE
SWITCH
BOX
120vAC, 60 Hz
HOUSE POWER
STANDARD
WALL SWITCH
EARTH
GROUND
BLACK
FIGURE 3
VERTICAL DISCHARGE
3
1
⁄
4
" x 10" DAMPER SECTION
3
1
⁄
4
" x 10"
DAMPER
SECTION
HORIZONTAL
DISCHARGE