NuTone EZ80NC Installation Manual

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EZ80NC

EZ Fit
Ventilation Fan

INSTALLATION GUIDE

Easy installation

© 2014 Broan-NuTone LLC

Table of Contents

Warnings and Cautions 2
Operation 2
Cleaning and Maintenance 2
Troubleshooting 2
Typical Installation 2
Installation - Replace an Existing Fan 3
Installation - New Construction 7
Service Parts 8
Warranty 8

Page 2

EZ80NC



Installation Guide

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 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. 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 a ceiling, do not damage electrical
wiring and other hidden utilities.

6. Ducted fans must always be vented to the outdoors.

7. Acceptable for use over a tub or shower (in the ceiling only)
when connected to a GFCI (Ground Fault Circuit Interrupter)

- protected branch circuit.

8. Use an ON/OFF switch to operate this ventilator. Use of
speed controls may cause a humming noise.

9. This unit must be grounded.

CAUTION

1. For general ventilating use only. Do not use to exhaust

hazardous or explosive materials and vapors.

2. DO NOT install this unit onto an acoustic ceiling panel.

3. When installed in a sloped ceiling, the duct connector must
point up.

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.

!

NOT FOR USE IN A COOKING AREA

Do not install above or inside this area

Operation

To Operate Fan

Use an ON/OFF switch to operate this ventilator.

WARNING 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.

Cleaning and Maintenance

To Clean

For quiet and efficient operation, long life and attractive
appearance, remove grille and vacuum interior of unit with a
dusting brush attachment.

The motor is permanently lubricated and never needs oiling. If
the motor bearings are making excessive or unusual noises,
replace the motor.

Troubleshooting

Symptom: The fan does not run.

• Check for an open fuse or circuit breaker in the building’s
service panel.

• Check that the plug-in connection for the motor is seated
firmly in place.

• Check that the blower wheel spins freely.

Symptom: The fan runs erratically.

• Check that the blower wheel is firmly attached to the motor
shaft and both spin freely.

Symptom: The fan seems noisy.

• Check that the back draft damper in the fan’s duct connector
pivots freely. Screws used to attach the ducting to the duct
connector may be preventing the damper from opening.

• Check that the back draft damper in the wall or roof cap pivots
freely. These dampers are sometimes mistakenly painted shut
or obstructed by bird and insect debris.

Typical Installation

POWER

CABLE*

HOUSING

INSULATION*

(Place around and

over Fan Housing.)

FAN

ROOF CAP*

(with built-in

damper)

Keep duct

runs short.

45° 45°

Cooking
Equipment

Floor

Seal gaps

around

Housing.

*Purchase
separately.

ROUND

DUCT*

Seal duct

joints with

tape.

ROUND

ELBOWS*

OR

WALL CAP*

(with built-in

damper)

Page 3

Installation - Replace an Existing Fan

EZ80NC



Installation Guide

Tools needed

• Phillips screwdriver

• Hammer or pry bar

• Safety glasses

• Pencil

• Tape Measure

• Drywall saw

Remove from Packaging

1

Materials needed

• 4" round metal ducting recommended for best performance. Use of
other ducting is acceptable but may impact performance. Existing
metal duct will require the addition of a short lenght of flexible duct.

• Roof cap or wall cap (built-in damper recommended)

• Tape to seal duct connections

• Drywall screws or sheet metal screws (optional)

• Electrical wiring and supplies per local code requirements

Punch out
Template from
packaging. See
Step 3.

Prepare the Housing

2

Loosen 2 blower

1

screws.

Unplug blower

2

and remove
blower from
housing.

Remove wiring cover.

3