Broan XB50L1 User manual

XB50L1 n XB80L1 n XB110L1
X1 | Single-Speed Ventilation
Fan with Dimmable Light
INSTALLATION GUIDE
READ AND SAVE THESE INSTRUCTIONS
Installer: leave this guide with homeowner.
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Easy installation in both
new construction and retrofit
Table of Contents
Warnings and Cautions 2
Typical Installation 2
New Construction Installation 3
Retrofit Installation 7
Operation 12
Cleaning and Maintenance 12
Troubleshooting 12
Service Parts 13
Warranty 13
© 2017 Broan

XB50L1 n XB80L1 n XB110L1 Installation Guide
Page 2
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 wall or ceiling, do not damage
electrical wiring and other hidden utilities.
6. Ducted fans must always be vented to the outdoors.
7. Use only ON/OFF switch, mechanical timer or relay-switched
control.
8. Acceptable for use over a tub or shower when connected to
a GFCI (Ground Fault Circuit Interrupter) - protected branch
circuit.
9. This unit must be grounded.
Typical Installation
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 ceilings up to a
12/12 pitch (45 degree angle). Duct connector must point up.
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.
45° 45°
• Installation is the same for:
• Fits in 2" x 8" ceiling construction.
• Infinitely adjust the fan position
between joists from 14" to 24"
on center.
• Do not install this fan in a ceiling
thermally insulated to a value
greater than R40. *Purchase
separately.
INSULATION*
(Place around and
over Fan Housing.)
ROOF CAP*
(with built-in
damper)
FAN
HOUSING
POWER
CABLE*
ROUND
DUCT*
ROUND
ELBOWS*
Seal gaps
around
Housing.
Seal duct
joints with
tape.
OR
Keep duct
runs short.
WALL CAP*
(with built-in
damper)
NOT FOR USE IN A COOKING AREA
Do not install above or inside this area
Floor
Cooking
Equipment
Joists I-Joists Trusses
The ducting from this fan to the outside of the building has a strong effect on the air flow, noise and en-
ergy use of the fan. Use the shortest, straighest duct routing possible for best performance, and avoid
installing the fan with smaller ducts than recommended. Insulation around the ducts can reduce en-
ergy loss and inhibit mold growth. Fans installed with existing ducts may not achieve their rated airflow.
6-inch round rigid metal duct is recommended for best performance.

XB50L1 n XB80L1 n XB110L1 Installation Guide
Page 3
1
2
3
4
Parts Bag holds
Knockout Plate
and six (6)
screws
Remove
Instruction
Sheet
Punch out Mask from
packaging. See Step 6.
New Construction Installation
Tools needed
• Power screwdriver with a Phillips bit
• Phillips screwdriver
• Flathead screwdriver
• Pliers
• Wire insulation stripper
• Wire cutter
Materials needed
• 6" round metal ducting recommended for best performance.
Use of other ducting is acceptable but may impact performance.
• Roof cap or wall cap (built-in damper recommended)
• Tape to seal duct connections
• Electrical wiring and supplies per local code requirements
1Remove Packaging
2Install
Mounting
Frame

XB50L1 n XB80L1 n XB110L1 Installation Guide
Page 4
3
1
4
2
1
2
3
New Construction Installation
3Snap-in and
Secure Housing
4Attach Duct Connector and Ducting
Position Housing
between joists and
crimp channel on both
sides of Mounting Frame
to lock Housing in place.
Do not crimp Housing.
Screws from Parts Bag
Top and bottom flanges
go outside Housing
Insert tab into slot
inside Housing
Screw from
Parts Bag
6" to 4" Reducer provided in select models
Tape
Tape
Tape
6" Ducting 4" Ducting
snap!