Plan The Installation - NuTone 744LEDNT Manuel D'instructions

Installer: Leave this manual with
the homeowner.

PLAN THE INSTALLATION

POWER
CABLE
CEILING
JOIST
FINISHED CEILING
Typical Installation
The unit can be installed anywhere between ceiling joists using
mounting brackets provided.
*
Install in a flat ceiling only.
INSULATION*
(Place around and
over Fan Housing.)
FAN
HOUSING
POWER
CABLE*
Seal gaps
around
Housing.
4-IN. ROUND
DUCT*
Seal duct
joints with
4-IN.
*Purchase
tape.
ROUND
separately.
ELBOWS*
The ducting from this fan to the outside of the building has a strong
effect on the air flow, noise and energy use of the fan. Use the
shortest, straightest duct routing possible for best performance,
and avoid installing the fan with smaller ducts than recommended.
Insulation around the ducts can reduce energy loss and inhibit
mold growth. Fans installed with existing ducts may not achieve
their rated airflow.
Plan to supply the unit with proper line voltage and appropriate
power cable.
4" ROUND
DAMPER/DUCT
CONNECTOR &
4" ROUND
HOUSING
DUCTWORK
MOUNTING
BRACKET
*
TRIM RING / BAFFLE
OR
WALL CAP*
(with built-in
damper)
The unit must not be installed above or inside the cooking area
shown.
INSTALLATION
CARDBOARD PROTECTOR
ROOF CAP*
(with built-in
damper)
1. Install mounting brackets.
Keep duct
runs short.
Slide the adjustable mounting brackets into the bracket channels
on the housing.
Bend the tabs on the cardboard protector and insert protector
into opening in housing.
NOTE: The cardboard protector shields the inside of the housing
from drywall spray and construction dust. Do not remove it until
after construction is completed.
2. Mark mounting location.
Position unit between joists and extend mounting brackets.
IMPORTANT: Position brackets so there will be an 1/8" gap
between bottom of housing and ceiling material. Mark the
top of keyhole slot on all four mounting brackets.
MODEL 744LEDNT
COOKING AREA
Do not install above
or inside this area
45
Cooking
Equipment
Do not install in a cooking area.
Page 2
45
Floor
1/8" GAP