NuTone 9417DNM, 9420WHC, 9425WHC Installation Instructions Manual
INSTALLATION INSTRUCTIONS
READ & SAVE THESE INSTRUCTIONS!
Bulb Heaters & Bulb Heater/Fans
MODELS: 9417DNM, 9420WHC, 9425WHC
IMPORTANT SAFETY 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 service panel 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 combustion 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 Association (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. Do not install this unit over a tub or shower.
7. Never place a switch where it can be reached from a tub or
shower.
8. Do not operate unit with dimmer switch or speed control.
CAUTION
1. For general ventilating use only. Do not use to exhaust hazardous or explosive materials and vapors.
2. This product is designed for installation in flat ceilings only.
DO NOT MOUNT THIS PRODUCT IN A WALL.
3. To avoid motor bearing damage and noisy and/or unbalanced
impellers, keep drywall spray, construction dust, etc. off power
unit.
4. Please read specification label on product for further information and requirements.
PLAN THE INSTALLATION
Choose the location for your heater. Refer to Warnings and Cautions.
MODELS 9417DNM & 9425WHC ONLY – The unit will operate
most efficiently when located where the shortest possible duct run
and minimum number of elbows will be needed. Units are designed for use with standard 4" round duct.
Note that two-bulb units can be fitted with one infrared bulb (for
heat) and one reflector bulb (for light). Dual or multi-controls can be
used for separate control of bulbs and/or exhaust fan. Purchase
controls separately.
Refer to FIGURE 1
Follow these basic steps when installing this unit:
1. Nail unit to joists.
2. Attach ductwork (Models 9417DNM & 9425WHC only).
3. Connect power cable.
4. Fasten grille to housing.
PREPARE THE HEATER
1. Remove the unit from carton. Save carton for use as plaster
shield in rough-in installations.
Refer to FIGURE 2
2. Slide adjustable mounting brackets into bracket channels on
housing.
DAMPER/DUCT
CONNECTOR
CEILING
JOIST
CEILING MATERIAL BULB(S)
HOUSING
POWER CABLE
GRILLE
MOUNTING
BRACKET
FIGURE 1
FIGURE 2
1
INSTALL THE HEATER
Refer to FIGURE 3
1. Position unit between joists and extend mounting brackets.
2. Nail brackets firmly to joists. Bottom of brackets should be
positioned flush with joist bottom.
Refer to FIGURE 4
3. Brackets are factory-set for ½" thick ceiling material. For thicker
ceilings, loosen 4 vertical adjusting screws and lower housing
to appropriate thickness on gauges. Tighten vertical adjusting
screws firmly.
ATTACH DUCTWORK
(MODELS 9417DNM & 9425WHC ONLY)
Refer to FIGURE 4
1. Snap the damper/duct connector onto housing. Make sure
that tabs on the connector lock in housing slots and that gravity closes damper.
2. Attach 4" round duct to damper/duct connector and run
ductwork to the outside through a roof or wall cap. Check
damper to make sure it opens freely. Tape all joints to make
them secure and air tight.
WIRE THE HEATER
Refer to FIGURE 5
1. Remove wiring box from side of housing. Remove knockout(s)
and connect power cable(s) to wiring box using proper CSA
approved connector.
Refer to FIGURE 6 (on page 3)
2. Wire unit as indicated in appropriate diagram. Push all wiring
into wiring box and replace wiring box onto housing.
FIGURE 3
DAMPER/DUCT
CONNECTOR
VERTICAL ADJUSTING
SCREWS
FIGURE 4
4” ROUND
DUCT
FINAL ASSEMBLY
Refer to FIGURE 7
1. Protect motor, bulb sockets and wiring from construction dust,
drywall spray, paint, etc. by using the plaster shield. Cut it from
the carton and follow directions printed on it.
2. Finish all ceiling work as necessary.
3. Remove plaster shield and check if bottom of housing is flush
with finished ceiling. If not, loosen vertical adjusting screws,
reposition housing, and retighten screws.
Refer to FIGURE 8
4. Attach grille by hooking springs onto clips on side of housing.
5. Install BR40 or R40-size 250W infrared bulb(s). Center grille
around bulb(s).
USE AND CARE
MODELS 9417DNM & 9425WHC OPERATION NOTE: These units
are designed with a thermostat which senses excess heat and
may start the blower automatically. This is normal and is no cause
for concern.
DISCONNECT ELECTRIC POWER SUPPLY AND LOCK OUT
SERVICE PANEL BEFORE CLEANING OR SERVICING THIS
UNIT.
To clean fan assembly: Remove bulb(s). Unhook springs and remove grille. Loosen motor assembly mounting screws and rotate
assembly to remove it from housing. Gently vacuum fan, motor and
interior of housing. Reverse steps to replace fan assembly.
To clean grille assembly: Remove bulb(s). Unhook springs and
remove grille. Clean grille with mild soapy water. Use a mild detergent, such as dishwashing liquid. Dry with a soft cloth. DO NOT
USE ABRASIVE CLOTHS, STEEL WOOL PADS OR SCOURING
POWDERS.
Motor is permanently lubricated — Do not oil or disassemble motor.
WIRING BOX
FIGURE 5
FIGURE 7
FIGURE 8
2
BLACK to
RED & BLUE
WHITE to
WHITE / GRAY
RED TO RED
WHITE to
WHITE / GRAY
BLACK to
BLACK
& RED
SWITCH OR TIMER
GROUND
BLACK
GROUND
BLACK
SWITCH OR TIMER
BLACK
120 VAC LINE IN
MODEL 9417DNM
Lamp & Vent operate together
WHITE to
WHITE / GRAY
WHITE to
WHITE
GROUND
RED to RED
BLACK to BLACK
LIGHT
HEAT
WHITE
to WHITE
GROUND
GROUND
BLACK
BLACK TO BLUE
HEAT
VENT
DUAL CONTROL
GROUND
RED
BLACK
BLACK
MODEL 9417DNM
Lamp & Vent operate separately
WHITE to
WHITE / GRAY
WHITE to
WHITE
RED
GROUND
120 VAC LINE IN
BLACK to BLACK,
& YELLOW
RED to RED
& BLUE
LIGHT
VENT & HEAT
WHITE to
WHITE
GROUND
GROUND
BLACK
3 WHITE / GRAY WIRES
RED
WHITE to
WHITE
BLACK
MODEL 9420WHC
Lamps operate together
BLACK to
BLUE
RED to RED,
BLACK &
YELLOW
GROUND
VENT
HEAT & LIGHT
BLACK
DUAL CONTROL
MODEL 9425WHC
Lamps operate together –
Vent separately
120 VAC LINE IN
3 WHITE / GRAY WIRES
RED
120 VAC LINE IN
WHITE to
WHITE
GROUND
DUAL CONTROL
BLACK
120 VAC LINE IN
MODEL 9420WHC
Lamps operate separately
BLACK to
BLACK, & BLUE
RED to RED
& YELLOW
GROUND
LIGHT
& VENT
HEAT
BLACK
RED
DUAL CONTROL
MODEL 9425WHC
Light & Vent operate together –
Heat separately
3 WHITE / GRAY WIRES
WHITE to
WHITE
GROUND
120 VAC LINE IN
DUAL CONTROL
120 VAC LINE IN
MODEL 9425WHC
Vent & Heat operate together –
Light separately
RED to RED
BLACK to BLACK
LIGHT
HEAT
VENT
3 BLACK WIRES
GROUND
BLACK
RED
3-FUNCTION CONTROL
WHITE to WHITE
RED to BLUE
BLACK to YELLOW
WHITE to WHITE / GRAY
3 WHITE
WIRES
120 VAC LINE IN
MODEL 9425WHC
Light, Vent & Heat operate separately
GROUND
GROUND
3
FIGURE 6
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