NuTone Decorative Series Ceiling Ventilators 741SNNT - Manual (Page 3)

Page 3
MODELS 741BRNT • 741SNNT • 741WHNT • 741BRFLNT • 741WHFLNT
MODELS
741BRNT
741SNNT
741WHNT
INSTALL THE HOUSING
(continued)
ATTACH THE GRILLE PAN AND
GLASS SHADE
INSTALL THE DUCTWORK
FLUSH
NOTE: The duct connector
has a counter-balanced
damper flap. The flap will be
CONNECT THE WIRING
1. Snap the damper/duct connector onto housing. Make sure
that tabs on the connector lock into slots in housing. Top
of damper/duct connector should be flush with top of hous-
ing.
2. Connect 4” round duct to damper/duct connector and ex-
tend duct to outside through a roof or wall cap. Check
damper to make sure that it opens freely. Tape all duct
connections to make them secure and air tight.
B L K V E N T
S W I T C H
B L U
B L K
W H T
W H T
W H T
L I G H T
( W H I T E )
G R D
V E N T
( B L A C K )
U N I T S W I T C H B O X
L I G H T
S W I T C H
L I N E
I N
B L K
R E D
W H T
G R D
SCHEMATIC WIRING DIAGRAM
SWITCH BOX
LIGHT
FAN
DUAL CONTROL
(purchase separately)
WHITE
BLACK RED
GROUND
(bare)
WIRING
PLATE
120 VAC
LINE IN
BLUE BLACK
RECEPTACLE
(FAN)
WHITE
RECEPTACLE
(LIGHT)
"open" approx. 1" when duct connector is attached to hous-
ing. This design permits insulation to be in direct contact with
fan/light housing per UL (Underwriters Laboratories) stan-
dards. The slightest backdraft, however, will close the damper
flap, preventing air from entering unit or finished space.
4. Place housing in opening so that its bottom edge is flush
with finished ceiling. Nail to joist through keyhole on both
sides. To ensure a noise-free installation, drive another
nail through the top hole of each mounting bracket.
Existing Construction
5. Additional mounting holes are provided for installations
where access from above is inconvenient or not possible.
Nail or screw housing directly to joists or framing.
ADDITIONAL
MOUNTING
HOLES
1. Locate the grille pan over
the fan housing and con-
nect the wiring harness
plug into white receptacle
in the fan housing.
2. Insert rod through center
hole of grille pan. Use
washer between collar on
rod and pan.
3. Thread rod onto grille screw in housing, until pan is tight
against ceiling.
1. Wire unit following diagram
above. Run electrical cable as
direct as possible to unit. Do not
allow cable to touch sides or top of
unit after installation is complete.
MODELS
741BRFLNT
741WHFLNT
4. Install bulbs. (see "Bulb Replace-
ment" chart on next page for proper
bulbs for your model).
5. Place glass shade over mounting
rod and align shade onto grille pan.
Secure glass shade to grille pan with
finial cap and finial nut as shown.
6. Restore electrical power and check operation of the unit.
GRILLE
SCREW
GRILLE
PAN
ROD
COLLAR
WASHER