NuTone InVent AERN110S User Manual
Humidity Sensing Fan
Ventilateur de détection d’humidité
Model number:
Numéro de modèle :
INSTALLATION AND
USE & CARE INSTRUCTIONS
DIRECTIVES D’INSTALLATION,
AERN110S
D’UTILISATION ET D’ENTRETIEN
English - See page 2
Français - Voir page 9
© 2017 Broan Canada
99045948A
Please visit our website - www.nutone.ca
to register this product and to view installation tips and videos.
Installer: Leave this manual with the homeowner.
READ AND SAVE THESE INSTRUCTIONS
INSTALLATION AND USE & CARE INSTRUCTIONS
SAFETY
WARNING
To reduce the risk of fire, electric
shock, or injury to persons, observe the
following:
• 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.
• 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.
• 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.
• 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.
• When cutting or drilling into wall or ceiling,
do not damage electrical wiring and other
hidden utilities.
• Ducted fans must always be vented to
the outdoors.
• If this unit is to be installed over a tub or
shower, it must be marked as appropriate
for the application and be connected to a
GFCI (Ground Fault Circuit Interrupter) protected branch circuit.
• This unit must be grounded.
• Some metal edges and/or corners may
be sharp. Use of gloves during installation
and removal is recommended.
CAUTION
• For general ventilating use only. Do not
use to exhaust hazardous or explosive
materials and vapors.
• For installation in flat ceilings only. DO
NOT MOUNT THIS PRODUCT IN A
WALL.
• To avoid motor bearing damage and
noisy and/or unbalanced impellers, keep
drywall spray, construction dust, etc. off
power unit.
• DO NOT TOUCH THE HUMIDITYSENSING CIRCUIT BOARD.
Electrostatic discharge may damage the
circuit board.
• Please read specification label on
product for further information and
requirements.
2
CLEANING & MAINTENANCE
For quiet and efficient operation, long life, and
attractive appearance - lower or remove grille
and vacuum interior of unit with the dusting brush
attachment.
The motor is permanently lubricated and never needs
oiling. If the motor bearings are making excessive
or unusual noises, replace the blower assembly
(includes motor and impeller).
OPERATION
The humidity control and fan can be operated
separately. Use a 1- or 2-function wall control. Do
not use a dimmer switch to operate the humidity
control.
SENSOR OPERATION
This humidity-sensing fan uses a sophisticated
humidity sensor that responds to: (a) rapid to
moderate increases in humidity or (b) humidity above
a set-point. The humidity sensor may occasionally
turn the fan ON when environmental conditions
change.
MANUAL ON WITH TIMED OFF
This humidity sensing fan has an additional operation
feature. For odor or vapor control, the fan can be
energized by cycling the power switch. Once the fan
has been energized in this manner, it will remain on
for the set timer period.
To manually energize the fan:
1. If fan power switch is already ON, proceed to
Step 2; otherwise, turn power switch ON for more
than 1 second.
2. Turn fan power switch OFF for less than 1
second.
3. Turn fan power switch back ON and fan will turn
ON.
SENSOR CLEANING
The humidity sensor is mounted in the control housing. The
sensor will operate most reliably when cleaned occasionally
as follows:
1. Disconnect power at service entrance.
2. Remove the grille. Use a dry dustcloth, clean toothbrush,
or lightly vacuum to clean sensor and grille. DO NOT
USE ABRASIVE CLOTH, STEEL WOOL PADS, OR
SCOURING POWDERS.
3. DO NOT USE cleaning sprays, solvents, or water on or
near the sensor!
%HUMIDITY MINUTES
60
50
% HUMIDITY ADJUSTMENT
%HUMIDITY has been factory set at 80% for most
shower applications. If fan is not responding to changing
humidity conditions, adjust toward 50%. If fan is
responding too often to changing humidity conditions,
adjust toward 80%. If fan is still responding too often at
80%, contact NuTone Technical Support.
To adjust the %HUMIDITY:
1. Turn power off at electrical service panel.
2. Use a small screwdriver to carefully rotate
%HUMIDITY control to desired level.
3. Turn power on.
4. Repeat above steps if necessary.
MINUTES ADJUSTMENT (TIMER)
This humidity-sensing fan has a timer that controls how
long the fan remains on after (a) rise in humidity and
(b) humidity level are both below the user-adjustable
%HUMIDITY setting, or after being energized by cycling
power switch.
To adjust the timer:
1. Disconnect power at electrical service panel.
2. Use a small screwdriver to carefully rotate MINUTES
control to increase or decrease time.
3. Turn power on.
4. Repeat above steps if necessary.
70
80
Factory settings shown.
15
10
5
20 30
40
50
60
INSTALLATION AND USE & CARE INSTRUCTIONS
OPERATION
3
ALL INSTALLATIONS
COOKING AREA
Start here.
WARNING
• Disconnect the electrical power supply and lock
out the service panel.
Do not install above or
inside this area.
1. Remove blower and all
packing material from fan
housing.
INSTALLATION AND USE & CARE INSTRUCTIONS
NOT FOR USE IN
A COOKING AREA.
45
o
Cooking
Equipment
45
o
Floor
IMPORTANT - The ducting from this fan to the outside
of the building has a strong effect on the air flow, noise and
energy use of the fan. Use the shortest, straightest duct routing
possible for best performance, and avoid installing the fan with
smaller ducts than recommended. Insulation around the ducts
can reduce energy loss and inhibit mold growth. Fans installed
with existing ducts may not achieve their rated airflow.
ROOF CAP * (with built-in damper)
INSULATION
(Place around and
over fan housing.)
FAN
HOUSING
POWER
CABLE
*
Seal gaps
around
housing.
4-IN. ROUND
DUCT
*
Purchase separately.
*
Seal duct joints
with tape.
OR
4-IN. ROUND
ELBOWS
*
INSTALLATION
Keep duct
runs short.
WALL CAP
(with built-in
damper)
2. Remove wiring panel from
fan housing.
*
4
OPTION - To mount housing anywhere between ceiling
framing: Use optional Hanger Bar Kit (sold separately from local
distributors or website). Follow mounting instructions included
with kit.
NEW CONSTRUCTION
For Retrofit Installation - Skip to Page 6.
3. Attach damper/duct connector
to fan housing.
Push connector through opening from inside of housing.
Engage tabs and secure with screw from parts bag.
TABS
4. Mount housing to ceiling
structure.
5. Connect 4-in. round duct.
6. Connect wiring.
Bend tab to expose desired access hole. Connect
power cable to housing with appropriate UL approved
connector. Connect wires per diagram on page 8. Reinstall wiring panel and secure with screw from parts
bag.
Make sure bottom of housing will be flush with finished
ceiling.
For proper location using ½-inch ceiling material: Bend
out housing tabs to fit against bottom of structure.
Secure housing through mounting ears with
appropriate fasteners.
If mounting housing to I-joist, use wood blocking as
shown.
HOUSING
TABS
INSTALLATION AND USE & CARE INSTRUCTIONS
INSTALLATION
5
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