Broan XB 110 User manual

XB50 n XB80 n XB110
X1 | Single-Speed
Ventilation Fan
INSTALLATION GUIDE
READ AND SAVE THESE INSTRUCTIONS
Installer: leave this guide with homeowner.
Easy installation in both
new construction and retrofit
2
2
3
7
12
12
12
13
Table of Contents
Warnings and Cautions
Typical Installation
New Construction Installation
Retrofit Installation
Operation
Cleaning and Maintenance
Troubleshooting
Service Parts
© 2017 Broan

XB50 nXB80 nXB110 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.
*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.

XB50 nXB80 nXB110 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

XB50 nXB80 nXB110 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!

XB50 nXB80 nXB110 Installation Guide
Page 5
3
4
1
2
New Construction Installation
5Connect Wires and Install Knockout Plate
• Run 120VAC electrical wiring to the installation location.
• Use proper UL-approved connectors to secure wiring to the Knockout Plate provided in Parts Bag.
• Connect wires as shown in wiring diagram.
Screw from
Parts Bag
Attach cable clamp to Knockout
Plate. Knockout Plate mounts to
outside of Housing and may be
oriented as desired.
Connect wires
LINE
IN GRD
WHT
BLK
GRD
WHT
BLK BLK RED
ON/OFF
SWITCH
(purchase separately)
FAN WHT
UNITSWITCH BOX
KNOCKOUT
PLATE
RECEPTACLE
120 VAC LINE IN
SWITCH BOX
BLACK
WHITE
RED
GROUND (green or bare)
ON/OFF
SWITCH
LINE
IN GRD
WHT
BLK
GRD
WHT
BLK BLK RED
ON/OFF
SWITCH
(purchase separately)
FAN WHT
UNITSWITCH BOX
KNOCKOUT
PLATE
RECEPTACLE
120 VAC LINE IN
SWITCH BOX
BLACK
WHITE
RED
GROUND (green or bare)
ON/OFF
SWITCH

XB50 nXB80 nXB110 Installation Guide
Page 6
1
2
New Construction Installation
6Insert Mask and
Finish Ceiling
7Install Grille
See Page 12 for Operations, Cleaning and Maintenance, and Troubleshooting.
Mask protects unit
during construction.
Remove before
installing Grille.
• Install ceiling material.
• Cut out around Housing.
CAUTION
If the blower was unplugged, power must be disconnected (see page 2, WARNING item 2)
before inserting motor plugs into control assembly.
IN ORDER TO PREVENT MOTOR/CONTROL DAMAGE:

XB50 nXB80 nXB110 Installation Guide
Page 7
12" (30.5 cm)
1
2
Retrofit Installation
Parts Bag holds
Knockout Plate
and six (6)
screws
Existing ductwork and
wiring left in place
11" (27.9 cm)
parallel with joists
WARNING
Before removing existing fan, 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.
Examine the existing wiring to make sure it is not damaged. If any damage is found,
DO NOT CONTINUE INSTALLATION of this product. Contact a qualified person(s) for repair.
Remove
Instruction
Sheet
Punch out Mask from
packaging. See Step 12.
1Remove Packaging
2Switch Off Power
4Examine Wiring
3Enlarge Ceiling Opening and Remove Existing Fan
• Ruler
• Pencil
• Drywall saw
• Claw hammer or pry bar
• Utility knife
Materials needed
• Tape to seal duct connections
• Existing rigid duct will require the
addition of a short length of flexible duct
• Electrical wiring and supplies per
local code requirements
Tools needed
• Power screwdriver with a Phillips bit
• Phillips screwdriver
• Flathead screwdriver
• Pliers
• Wire insulation stripper
• Wire cutter

XB50 nXB80 nXB110 Installation Guide
Page 8
2
1
2
3
45
1
1
2
3
3
Retrofit Installation
5Remove Blower Assembly
6Remove Wiring Panel
7Insert
Mounting
Frame
Both sides
Set aside
Blower
Assembly
Set aside
Wiring Panel
Set aside
screw
Bend up
four tabs
Remove screws from
Mounting Frame
and set aside

XB50 nXB80 nXB110 Installation Guide
Page 9
1
2
2
1
3
4
Retrofit Installation
Screw from
Parts Bag
Screws set
aside
in Step 7
Pull existing wiring into
Housing as it is inserted
into Mounting Frame
Pull existing
ductwork
into Housing
Insert tab into
slot inside
Housing
10 Attach Ducting and Duct Connector
8Secure
Mounting
Frame
9Snap-in Housing
snap!
6" to 4" Reducer provided in select models
Tape
Tape
Tape
6" Ducting 4" Ducting

XB50 nXB80 nXB110 Installation Guide
Page 10
2
1
4
5
6
3
Retrofit Installation
11 Install Knockout Plate, Connect Wires and Reinstall Wiring Panel
Screw from
Parts Bag
Attach cable clamp to Knockout
Plate. Knockout Plate mounts to
inside of Housing and may be
oriented as
desired.
Connect
wires
Screw set
aside in
Step 6
LINE
IN GRD
WHT
BLK
GRD
WHT
BLK BLK RED
ON/OFF
SWITCH
(purchase separately)
FAN WHT
UNITSWITCH BOX
KNOCKOUT
PLATE
RECEPTACLE
120 VAC LINE IN
SWITCH BOX
BLACK
WHITE
RED
GROUND (green or bare)
ON/OFF
SWITCH
LINE
IN GRD
WHT
BLK
GRD
WHT
BLK BLK RED
ON/OFF
SWITCH
(purchase separately)
FAN WHT
UNITSWITCH BOX
KNOCKOUT
PLATE
RECEPTACLE
120 VAC LINE IN
SWITCH BOX
BLACK
WHITE
RED
GROUND (green or bare)
ON/OFF
SWITCH
• Use proper UL-approved connectors to secure wiring to the Knockout Plate provided in Parts Bag.
• Connect wires as shown in wiring diagram.

XB50 nXB80 nXB110 Installation Guide
Page 11
12 3
1
2
Retrofit Installation
12 Reinsert and Secure Blower Assembly
13 Install Grille
If ceiling repairs are needed, place Mask in
Housing after Blower Assembly is secured.
See New Construction Installation Step 6.
Remove Mask before installing Grille.
Screws from Parts Bag
CAUTION
Power must be disconnected (see page 2, WARNING item 2) before inserting motor plugs into control assembly.
IN ORDER TO PREVENT MOTOR/CONTROL DAMAGE:

XB50 nXB80 nXB110 Installation Guide
Page 12
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.
Operation
To Operate Fan
Use an ON/OFF switch to operate this ventilator.
It is normal for this ventilation fan to take approximately 5
seconds to start running after it is turned on.
Cleaning and Maintenance
CAUTION
IN ORDER TO PREVENT MOTOR/CONTROL DAMAGE:
DO NOT remove motor plug to stop spinning motor.
Power must be disconnected (see WARNING at top left of
this page) before motor plug is removed or inserted into
control assembly.
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 Control Assembly and 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 two (2) plug-in connections for the Motor
and the Control are 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 duct
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..

XB50 nXB80 nXB110 Installation Guide
Page 13
5
10
1
3
6
7
4
8
9
11
2
Service Parts
Order replacement
parts by Part No.,
not by Key No.
Key No. Part No. Description
1 97018349 Mounting Frame
2 97018721 Knockout Plate & Screws
3 97018382 Housing
4 97018471 Wiring Panel/Harness Assembly
5 1102584 Control Assembly & Motor (XB50)
1102585 Control Assembly & Motor (XB80)
1102586 Control Assembly & Motor (XB110)
6 97018331 Duct Connector - 6"
7 99111513 6" to 4" Reducer (models XB50 and XB80 only)
8 99020301 Blower Wheel
9 97018768 Scroll Assembly (XB110)
97019371 Scroll Assembly (XB50, XB80)
10 97018530 Grille Assembly (includes 11)
11 99140208 Grille Spring (2 req’d)
Looking for home ventilations? Visit our website.