CEILING VENTILATORS
READ AND SAVE THESE INSTRUCTIONS
WARNING
TO REDUCE THE RISK OF FIRE, ELECTRIC
SHOCK, OR INJURY TO PERSONS, OB-
SERVE THE FOLLOWING:
1. Use this unit only in the manner intended
by the manufacturer. If you have questions,
contact the manufacturer at the address or
telephone number listed in the warranty.
2. Before servicing or cleaning unit, switch
power off at service panel and lock the ser-
vice disconnecting means to prevent power
from being switched on accidentally. When
the service disconnecting means cannot be
locked, securely fasten a prominent warning
device, such as a tag, to the service panel.
3. Installation work and electrical wiring
must be done by a qualified person(s) in
accordance with all applicable codes and
standards, including fire-rated construction
codes and standards.
4. Sufficient air is needed for proper combus-
tion and exhausting of gases through the
flue (chimney) of fuel burning equipment
to prevent backdrafting. Follow the heating
equipment manufacturer's guideline and
safety standards such as those published
by the National Fire Protection Associa-
tion (NFPA), and the American Society for
Heating, Refrigeration and Air Conditioning
Engineers (ASHRAE), and the local code
authorities.
5. When cutting or drilling into wall or ceiling,
do not damage electrical wiring and other
hidden utilities.
6. Ducted fans must always be vented to the
outdoors.
7. If this unit is to be installed over a tub or
shower, it must be marked as appropriate for
the application and be connected to a GFCI
(Ground Fault Circuit Interrupter) - protected
branch circuit.
8. Never place a switch where it can be
reached from a tub or shower.
9. This unit must be grounded.
!
CAUTION
1. For general ventilating use only. Do not use
to exhaust hazardous or explosive materials
and vapors.
2. To avoid motor bearing damage and noisy
and/or unbalanced impellers, keep drywall
spray, construction dust, etc. off power unit.
3. Please read specification label on product
for further information and requirements.
TYPICAL INSTALLATIONS
POWER CABLE
MOUNTING TABS
CEILING
JOIST
HOUSING
CEILING
GRILLE
MATERIAL
HOUSING MOUNTED
DIRECTLY TO JOIST
2x6 (or larger)
Discharge parallel to joists.
POWER CABLE
MOUNTING
TABS
HOUSING
I
"
"
CEILING
GRILLE
JOIST
MATERIAL
HOUSING MOUNTED TO "I" JOIST
Requires additional framing
for mounting tabs.
Discharge parallel to joists.
INSULATION*
(Place around and
over Fan Housing.)
FAN
HOUSING
POWER
CABLE*
Seal gaps
around
Housing.
4-IN. ROUND
DUCT*
*Purchase
separately.
Installer: Leave this manual with the homeowner.
Homeowner: Use and Care information on page 4.
MODELS HD50NT • HD80NT
POWER CABLE
2 x 4
CEILING
JOIST or
TRUSS
CEILING
MATERIAL
HOUSING MOUNTED
Requires additional framing
for mounting tabs.
Discharge parallel to joists.
ADDITIONAL
*
FRAMING
*
Additional framing must be a 2x6
(minimum height).
"
I
"
JOIST
OR
Seal duct
joints with
4-IN.
tape.
ROUND
ELBOWS*
Page 1
ADDITIONAL
MOUNTING
FRAMING
TABS
CEILING
JOIST or
TRUSS
HOUSING
GRILLE
TO 2x4 TRUSS
ROOF CAP*
(with built-in
damper)
Keep duct
runs short.
WALL CAP*
(with built-in
damper)
*
2 x 4