NuTone 665RF User Manual

INSTALLATION INSTRUCTIONS

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Heat-A-Ventlite

®

Combination

MODEL: 665RF

TYPE IC suitable for use under thermal insulation

LOCATION

1. Mount heater to ceiling joists, or if necessary, to a header
installed between joists.

2. Caution: Do not mount heater closer than 12" to a

vertical surface. Do not mount over tub or in shower
enclosure.

3. Installation in existing construction requires an accessible
area above the desired location. Make sure that wiring can
be run to the location.

MOUNTING HEATER HOUSING

NEW CONSTRUCTION

FIGURE 1

Using Hanger Bars

Refer to Figure 1.

1. Insert hanger bars in slots provided in housing.

2. Locate heater housing between joists so that bottom of heater housing is even with the planned finished ceiling.

3. Use screws or nails (not provided) to secure hanger bars to ceiling joists.

Using Side Mounting Tabs

1. Locate heater housing next to ceiling joist.

2. Use wood screws (not provided) through keyhole slots in mounting tabs to loosely attach housing to ceiling joist.

3. Adjust housing so that it will be flush with the finished ceiling. When housing is properly adjusted, tighten screw in slots to
secure housing.

EXISTING CONSTRUCTION

1. Determine desired location for heater.

2. Drill a small hole through the ceiling at the desired location and stick a coat hanger or stiff wire through hole into attic to help
find the location from above.

3. Check the area above to make sure that wiring can be installed and that the installation will not interfere with existing
electrical wiring.

4. From above, place the housing between ceiling joists at the desired location. Using the housing as a template, mark the area
to be cut out along the bottom flange of the housing.

5. After making the cutout, install the housing in the opening using the hanger bars or mounting tabs as described above. Make
sure that the bottom of the housing is flush with the bottom of the finished ceiling.

HEATER JUNCTION BOX

LIGHT
RECEPTACLE

WHITE

WHITE

RED

GREEN

WALL SWITCH BOX

WHITE

BLACK

120VAC LINE

SUPPLY
GROUND

LIGHT

HEAT

VENT

WHITE

BLACK

BLUE

VENT
RECEPTACLE

HEAT
RECEPTACLE
(WHITE)

FIGURE 2

WIRING

All wiring must comply with local and national codes
and unit must be properly grounded.

1. Run 120VAC, 60Hz supply wiring to the wall switch (not
provided). The unit must be wired on a separate 20

Amp circuit.

2. Run wiring from the switch to the housing junction box.
Loosen screw holding exterior wiring compartment cover
and remove cover. Interior wiring compartment may be
removed if necessary by loosening screw in keyhole slot in
cover. Remove knockout(s) as required and install
approved box connector.

3. Refer to fig. 2. Connect white wires in junction box to
white (neutral) supply wire. Connect the blue wire in the
junction box to the supply wire from the vent switch.
Connect the black wire to the supply wire from the light
switch. Connect the red wire in the junction box to the
supply wire from the heat switch. Connect green ground
lead in the junction box to the supply ground.

4. Replace wiring compartment cover and tighten screw to
secure.

5. Insert vent motor plug in vent receptacle on wiring
compartment cover. Insert plug from heater assembly into
the white socket of the wiring compartment cover.

DUCTING

1. Snap plastic duct adapter and damper assembly over
flanged opening on housing. Connect 4" round duct to the
duct adapter and secure with duct tape. The duct should
be run to the outside of the structure through the roof or
wall cap. For maximum performance keep duct runs as
short and as straight as possible.

FIGURE 3

FIGURE 4

LIGHT SOCKET

REFLECTOR

LENS

REFLECTOR
MOUNTING
SCREW

USE COMPACT FLUORESCENT
LAMP, NEMA TYPE
CFQ13W/GX23/827 (PURCHASE
LOCALLY)

MOUNTING REFLECTOR AND GRILLE

1. Place reflector in the opening in the center of the grille.
The notches in the reflector should fit over the pegs on
either side of the opening. Insert plug from lamp ballast
into lamp receptacle on wiring compartment.

2. Place 1" screw, provided, through the center hole in the
reflector and thread it into the hole in the mounting bracket
running across the housing. Tighten the screw just
enough to hold the grille firmly against the ceiling.

3. Install a 13 watt Compact Fluorescent lamp, NEMA type
CFQ13W/GX23/827. (Not provided)

4. Snap lens into position in center of grille. To remove the
lens for relamping, gently pry along the side of the lens
with a screwdriver to disengage the snap in tabs while
pulling down on the lens.