NuTone 655 Original operating instructions

READ AND SAVE
THESE INSTRUCTIONS
MODEL 655 / 659
HEATER/FAN/LIGHT
MODEL 657 FAN/LIGHT
655F, 657F AND 659F FINISH PACKS FOR USE WITH 654H HOUSING PACKS
IMPORTANT INSTRUCTIONS
READ ALL INSTRUCTIONS BEFORE INSTALLING OR
USING THIS HEATER.
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 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. When cutting or drilling into wall or ceiling, do not damage electrical wiring and
other hidden utilities.
5. This heater is hot when in use. To avoid burns, do not let bare skin touch hot
surfaces. Keep combustible materials, such as furniture, pillows, bedding, papers,
clothes, etc. and curtains at least 3 feet (0.9 m) from the front of the heater.
6. Extreme caution is necessary when any heater is used by or near children or invalids
and whenever the heater is left operating and unattended.
7. Do not operate any heater after it malfunctions. Disconnect power at service panel
and have heater inspected by a reputable electrician before reusing.
8. Do not use outdoors.
9. To disconnect heater, turn controls to off, and turn off power to heater circuit at main
disconnect panel (or operate internal disconnect switch, if provided).
10.Do not insert or allow foreign objects to enter any ventilation or exhaust opening, as
this may cause an electric shock or fire, or damage the heater.
11.To prevent a possible fire, do not block air intakes or exhaust in any manner.
12.A heater has hot and arcing or sparking parts inside. Do not use it in areas where
gasoline, paint, or flammable vapors or liquids are used or stored.
13.Use this heater only as described in this manual. Any other use not recommended
by the manufacturer may cause fire, electric shock, or injury to persons.
14. This product must be grounded.
Models 655, 659 & 659F Heater/Fan/Lights ONLY (Nos. 15 through 20):
15.Do not install heater in a tub or shower enclosure.
16.This product is designed for ceiling installation only. This product is designed for
installation in ceilings up to a12/12 pitch. Ductwork must point up. DO NOT MOUNT
THIS PRODUCT IN A WALL.
17.Install heater at least 6 inches from floor or any adjacent wall.
18.Do not connect heater to dimmer switch or speed control.
19.Provide a separate 15 AMP circuit. Use 14 GA. power cable of type which meets
code. (Separate 20 AMP circuit and 12 GA. wire for Model 655.)
20.For greatest efficiency, install heater so heat is directed toward tub or shower area.
Avoid directing toward walls or windows.
Models 657 & 657F Fan/Lights ONLY (No. 21):
21.Acceptable for use over a bathtub or shower when installed in a GFCI protected
branch circuit.
SAVE THESE INSTRUCTIONS
PREPARATION
STEPS 1 THRU 3 - MODELS 655, 659 & 659F ONLY
1. Make sure the heater assembly is unplugged from the RED receptacle.
2. Loosen the two retaining screws on the inside of the heater discharge
opening. Place a screwdriver tip between the outer wall of the discharge
opening and the fan housing. Gently pry outward until the exhaust
discharge slips off the support lip on the outer housing. (FIG. 1)
3. Unhook hinge pins and lift heater assembly out of housing. (FIG. 2)
CAUTION: Remove the shipping ring from the heater blower inlet before
operating the heater.
4. Unplug the fan assembly from the BLACK receptacle. Remove the plastic
bag and set it aside.
5. Remove the mounting screw and carefully lift the fan assembly out of
the housing. (FIG. 3)
6. Refer to the wiring diagram of your unit on the next page. Remove
appropriate knockout(s) by inserting a screwdriver blade into slots and
bending it back and forth to break tabs. (FIG. 4)
7. Insert the adjustable mounting brackets into the bracket channels on the
housing. (FIG. 5)
FIG. 1
FIG. 2
FIG. 3
FIG. 4
FIG. 5
KNOCKOUTS
RETAINING
SCREWS
HINGE PIN

INSTALLATION
WARNING: To reduce the risk of fire, do not store or use gasoline or other
flammable vapors and liquids in the vicinity of the heater.
CAUTION: High temperature, risk of fire, keep electrical cords, drapery,
furnishings, and other combustibles at least 3 feet (0.9 m) from the front of
the heater and away from the side and rear.
8. For best results, choose a location which allows fan to be vented outside
with the shortest possible duct run and the fewest number of elbows.
9. Position unit between joists and extend mounting brackets. Position brackets
such that the bottom edge of housing will be flush with finished ceiling.
Mark the top of keyhole slot on all four mounting brackets. (FIG. 6)
10.Remove unit temporarily, and pound nails partially into joists at all four
marked locations. (FIG. 7)
11.Hang unit from nails and use embossed measuring guides to check if unit
will be flush with finished ceiling. Pound nails tight. For wide joist centers:
A #8 x 3/8 self-tapping screw can be used to join extended brackets together
and create a rigid mount. To ensure a noise-free mount, crimp the bracket
channels tightly around mounting brackets. (FIG. 8)
12.Snap the damper/duct connector onto housing. Make sure that tabs on the
connector lock in housing slots. (Top of damper/duct connector will be flush
with top of housing.) (FIG. 9)
NOTE: Make sure damper flap is in place inside of duct connector. If it is
not: Squeeze top and bottom of connector to snap flap back into place.
(FIG. 10)
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.
13.Wire unit according to Figure 11 or 12, whichever is appropriate. (See NOTE.)
STEP 14 - MODELS 655, 659 & 659F ONLY
14.Replace heater assembly removed in STEP 3 and plug it into RED receptacle.
Direct wires away from blower inlet.
15.Replace fan assembly removed in STEP 5 and plug it into BLACK receptacle.
CAUTION
To avoid the possibility of overheating and/or re, the grille must be
installed as shown in FIG. 13. Acorn nut and tooth washer must attach
to threaded rod through proper hole in light reector.
16.Slide the light reflector into opening in grille and plug into WHITE receptacle.
Use acorn nut and tooth washer from plastic bag to attach grille reflector
assembly to threaded rod on housing. Tighten securely using pliers or nut
driver. Install a light bulb 100 Watt maximum. (FIG.13)
17.Install light lens by 1) hooking one of its tabs into notch in grille/reflector
assembly; 2) apply light pressure to other tab with fingertips and 3) snap
into place. (FIG. 14)
FIG. 6
FIG. 7
FIG. 8
EMBOSSED
MEASURING
GUIDES
FIG. 9 FLUSH
NIVEL
NOTE
WIRE
OPENING
RELEASE SLOT
If the switch has not been wired properly and wires need to
be moved:
1. Each wire opening has a release slot.
2. Push a small nail or screwdriver into release slot while gently
removing wire.
3. DO NOT pull any wire out of the switch without using the
release slot. The switch may be damaged.
FIG. 10 FIG. 11 MODELS 655, 659
RED
WHITE
BLACK
120 VAC LINE IN
LIGHT
VENT
RESPI-
HEAT
GROUND
RED
BLACK
GROUND
RED
BLUE
WHITE
BLACK
LIGHT
VENT
WHITE
GRD
120 VAC LINE IN
BLACK
WHITE
BLACK
GRD
RED
BLUE
FIG. 12
MODEL 657
BLACK
NEGRO
RED/ROJO
GROUND
FIG. 13
FIG. 14
2
3
1
THREADED ROD
LIGHT
REFLECTOR
ACORN
NUT
TOOTH
WASHER
GRILLE
USE THIS HOLE
BOTTOM VIEW
OPERATION
Before using heater, make sure heater has been properly
installed according to installation steps beginning with the
"PREPARATION" section on page 1.
MAINTENANCE
TO REPLACE BULB
Remove lens by gently depressing sides and pull down. Use
bulb rated up to 100 watts only.
LUBRICATION
The heater is permanently lubricated and never needs oiling
or disassembly.
CLEANING
Clean heater once a month as follows:
1. Turn off power at service panel.
2. Make sure heating element is cool.
3. Use a soft brush attachment to gently vacuum grille open-
ings or wipe grille clean with a soft cloth.
4. Restore power.
CAUTION: METAL AND ELECTRICAL PARTS SHOULD NEVER
BE IMMERSED IN WATER.
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