Flex AEN80L - Fan NuTone - Free user manual and instructions

Product Type	Bathroom Exhaust Fan
Brand	NuTone
Model	Flex AEN80L
Dimensions (L x W x H)	Approximately 28.6 x 28.6 x 21 cm
Duct Diameter	10 cm (4 inches)
Weight	Approximately 2.5 kg
Power Supply	120 V AC, 60 Hz
Power Consumption	30 W (ventilation only)
Maximum Airflow	80 CFM (136 m³/h)
Sound Level	~1.5 sones (low)
Main Functions	Air extraction, humidity removal, odor reduction
Installation Type	Ceiling or wall-mounted, with exhaust duct
Materials	Durable ABS plastic, painted steel grille
Maintenance and Cleaning	Regular dusting of grille and blades; clean with a damp cloth
Safety	Thermally protected motor, automatic shut-off in case of overheating
Spare Parts and Repairability	Grille, motor, fan wheel available separately; repairable by a professional
Warranty	1 year (parts and labor)
Certifications	UL, CUL (electrical safety)
Included Accessories	Ventilation grille, mounting kit, user manual
General Information	Quiet and energy-efficient fan, ideal for damp rooms up to 10 m²

Frequently Asked Questions - Flex AEN80L NuTone

How to install the NuTone Flex AEN80L fan?

Installation requires turning off the power supply, mounting the housing to the ceiling or wall, connecting the exhaust duct, and wiring according to the diagram in the manual. It is recommended to use a qualified electrician.

What duct diameter should be used?

The AEN80L model is designed for a 10 cm (4 inch) diameter duct. Using a smaller duct would reduce airflow.

How to clean the fan?

Unplug the unit, remove the grille and wash it with warm soapy water. Vacuum dust from the blades and motor with a brush attachment. Never immerse the motor.

The fan is noisy, is this normal?

A slight operational noise is normal. If the noise becomes loud or abnormal, check that the blades are not hitting the housing and that the fan is securely mounted. A sound level above 2 sones may indicate a problem.

Can I use this fan with a speed controller?

No, this model is not compatible with speed controllers. Modifying the voltage could damage the motor. Use only the standard on/off switch.

The fan does not turn on, what should I do?

First check the circuit breaker and wall switch. Ensure the electrical connections are correct and the motor is not blocked. If the problem persists, contact customer service.

What is the recommended ceiling height?

The fan can be installed at a ceiling height between 2.10 m and 2.70 m. For higher ceilings, a longer duct may be required.

Is this fan suitable for a bathroom without a window?

Yes, the NuTone Flex AEN80L is specifically designed for extracting humidity and odors in windowless bathrooms. It must be connected to an exterior exhaust.

Where to find spare parts?

Spare parts (grille, motor, wheel) are available from authorized NuTone dealers or on the official website. Always use original parts.

What is the power consumption in standby?

This fan does not have a standby mode. It is either running or off. Power consumption is zero when turned off.

USER MANUAL Flex AEN80L NuTone

Roomside / Flex™ Series Fan/Light READ AND SAVE THESE INSTRUCTIONS

For Warranty Statement, Service Parts, Technical Support, or to Register your product, please visit our website or call: In the United States - Broan-NuTone.com 800-558-1711. In Canada - Broan-NuTone.ca 800-567-3855.

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 fi re-rated construction codes and standards.
4. Suffi cient air is needed for proper combustion and exhausting of gases through the fl ue (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. Ducted fans must always be vented to the outdoors.
7. Acceptable for use over a tub or shower when connected to a GFCI (Ground Fault Circuit Interrupter) - protected branch circuit (ceiling installation only).
8. This unit must be grounded.

CAUTION

1. For general ventilating use only. Do not use to exhaust hazardous or explosive materials and vapors.
2. This product can be installed in a wall if mounted 8-ft. or more above the floor.
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.

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 fan and light can be operated separately. Use a 2-function wall control.

Flex™ Series Fan/Light ONLY: Do not use a speed control to operate the fan.

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.

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.

ALL INSTALLATIONS

1 Remove all packing material, unplug and remove blower from fan housing.

2 Remove wiring panel from fan housing. (if already installed).

1. The models only:
   Elect 50, 80 or 110 CFM based on your room size and desired air flow.

4 Some models only: A pair of fl anges may be attached to housing if desired or required.

Snap both fl ange pieces under rolled-over edge of housing (all four sides).

For Retrofi t Installation - Skip to Page 3.

NEW INSTALLATION

5 Attach damper/duct connector to fan housing.

Push connector through opening from inside of housing.

Engage tabs and secure with screw from parts bag.

6 Mount housing to ceiling structure.

Make sure bottom of housing will be fl ush with fi nished ceiling.

For proper location using 1/2 " ceiling material: Bend out housing tabs (on outside of housing) to fit against bottom of joist.

Secure housing through mounting ears with appropriate fasteners. If mounting housing to I-joist, use wood blocking as shown.

7
Connect 4-in. round duct.

8
Connect wiring.

Connect power cable to wiring plate (from parts bag) using UL approved connector. Connect house wiring to fan wiring. Refer to wiring diagram for connection details. Use screw (from parts bag) to secure wiring plate to fan hou panel and secure with

Finish ceiling.

Then continue with Step 10.

RETROFIT INSTALLATION

5

Remove old fan and prepare ceiling.

Enlarge ceiling opening

(if necessary) to 9 ^3/4 "

parallel to joist) by 10½"

(perpendicular to joist).

(Some models have a

cut-out template on side of carton or on grille packaging materials.)

Existing fan housings are typically attached to the structure:

• with screws, nails, or staples, which must be removed.

- with hangers or rails which are fastened to joists and must be removed along with housing.

A pry bar may be needed to remove the old housing.

Leave ductwork and wiring in place.

6
Fold mounting ears fl at against housing.

7
Connect wiring.

Connect power cable to wiring plate (from parts bag) using UL approved connector. Connect house wiring to fan wiring. Refer to wiring diagram for connection details. Use screw (from parts bag) to secure wiring plate to fan housing. Re-install wiring panel and secure with screw from parts bag.

8
Mount fan to ceiling structure.

Mount housing to ceiling structure with appropriate fasteners in locations shown.

9

Connect 4-in. round duct.

① Pull existing ducting through housing discharge opening and ② tape ducting to duct connector. ③ Push connector/ducting back through opening. Engage tabs and ④ secure with screw from parts bag.

Continue with Step 10.

ALL INSTALLATIONS

10

Install blower.

Re-install blower removed in Step 1. Secure blower with 2 screws from parts bag. Plug blower into black receptacle.

Flex™ Series Fan/Light ONLY: Plug 5-wire plug into controller module.

Flex™ Series Fan/Light ONLY

11

Install grille.

LED Fan/Light ONLY:

Snap LED light module into inside of grille.

Note: On some models, LED module may already be installed.

Plug in light module. Squeeze grille springs and insert into slots in blower. Push grille up against ceiling.

For models 791LEDM and 791LEDNTM ONLY:

Plug in light ① and LED driver ②.

Depending upon model - your grille may look different.

If grille spring becomes dislodged from grille - snap it back into place as shown.

WIRING DIAGRAM

Branchez les fi ls.

9

Raccordez un conduit rond de 10 cm (4 po).

2

3

9

11

Instale la rejilla.