NuTone 742WHNT Ventilation Hood User Manual


 
Page 1
MODELS 742RBNT • 742WHNT • 742SNNT
DECORATIVE SERIES
CEILING VENTILATORS
READ AND SAVE THESE INSTRUCTIONS
WARNING
TO REDUCE THE RISK OF FIRE, ELECTRIC
SHOCK, OR INJURY TO PERSONS, OBSERVE
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 service discon-
necting means to prevent power from being
switched on accidentally. When the service dis-
connecting 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, includ-
ing fire-rated construction codes and standards.
4. Sufficient air is needed for proper combustion
and exhausting of gases through the flue (chim-
ney) 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 Association (NFPA), and the Ameri-
can Society for Heating, Refrigeration and Air
Conditioning Engineers (ASHRAE), and the lo-
cal code authorities.
5. When cutting or drilling into wall or ceiling, do not
damage electrical wiring and other hidden utili-
ties.
6. Ducted fans must always be vented to the out-
doors.
7. NEVER place a switch where it can be reached
from a tub or shower.
8. This unit must be grounded.
9. This unit is U.L. listed. Type I.C. inherently pro-
tected.
CAUTION
!
1. For general ventilating use only. Do not use to
exhaust hazardous or explosive materials and
vapors.
2. This product is designed for ceiling installation
only. This product is designed for installation in
ceilings up to a 12/12 pitch. Ductwork must point
up. DO NOT MOUNT THIS PRODUCT IN A
WALL.
3. The light fixture assembly must be mounted to
the fan housing assembly included with this prod-
uct. Do not mount the light fixture assembly
to a wiring outlet box.
4. To avoid motor bearing damage and noisy and/
or unbalanced impellers, keep drywall spray,
construction dust, etc. off power unit.
5. Please read specification label on product for
further information and requirements.
TYPICAL INSTALLATIONS
HOUSING
CEILING
JOIST
MOUNTING TABS
CEILING
MATERIAL
POWER CABLE
GRILLE
PAN
GLASS
LIGHT SHADE
HOUSING
CEILIN
G
JOIST
MOUNTING TABS
POWER CABLE
4" ROUND
DUCT
ADDITIONAL
FRAMING
CEILING
MATERIAL
GRILLE PAN
GLASS
LIGHT SHADE
HOUSING MOUNTED
TO ADDITIONAL FRAMING
Discharge 90
0
to joists.
HOUSING MOUNTED
DIRECTLY TO JOIST
2x6 (or larger)
Discharge parallel to joists.
HOUSING
2 x 4
CEILING
JOIST or
TRUSS
MOUNTING
TABS
POWER CABLE
ADDITIONAL
FRAMING
2 x 4
CEILING
JOIST or
TRUSS
CEILING
MATERIAL
GRILLE
PAN
GLASS
LIGHT SHADE
HOUSING MOUNTED
TO 2x4 TRUSS
Requires additional framing
for mounting tabs.
Discharge parallel to joists.
HOUSING
MOUNTING
TABS
POWER CABLE
ADDITIONAL
FRAMING
"
I
"
JOIST
"
I
"
JOIST
CEILING
MATERIAL
GRILLE
PAN
GLASS LIGHT SHADE
HOUSING MOUNTED TO “I” JOIST
Requires additional framing
for mounting tabs.
Discharge parallel to joists.
HOUSING
2 x 4
CEILIN
G
JOIST o
r
TRUSS
MOUNTING TABS
POWER CABLE
4" ROUND
DUCT
ADDITIONAL
FRAMING
2 x 4
CEILING
JOIST or
TRUSS
CEILING
MATERIAL
GRILLE PAN
GLASS
LIGHT SHADE
HOUSING MOUNTED TO 2x4 TRUSS
Requires additional framing
for mounting tabs.
Discharge 90
0
to joists.
HOUSING
MOUNTING TABS
POWER CABLE
4" ROUND
DUCT
ADDITIONAL
FRAMING
"
I
"
JOIST
"
I
"
JOIST
CEILING
MATERIAL
GRILLE
PAN
GLASS
LIGHT SHADE
HOUSING MOUNTED TO “I” JOIST
Requires additional framing
for mounting tabs.
Discharge 90
0
to joists.
Installer: Leave this manual with the homeowner.
Homeowner: Use and Care information on page 4.
*
Additional framing must be a 2x6 (minimum height), at least 9-inches long.
*
*
*
*
*