Broan XB110H Installation Manual

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XB110H

X1 | Single-Speed Ventilation Fan with Humidity Sensor

INSTALLATION GUIDE

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

Page 2

XB110H 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 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.

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 flat ceilings. Sensor will not function reliably if product is not installed in flat ceiling. 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.

NOT FOR USE IN A COOKING AREA

Do not install above or inside this area

45° 45°

Cooking Equipment

Floor

Typical Installation

• Installation is the same for:

Joists I-Joists Trusses

• Fits in 2" x 8" ceiling construction.

• Infinitely adjust the fan position between joists from 14" to 24" on center.

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, straighest 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.

6-inch round rigid metal duct is recommended for best performance.

HOUSING

POWER CABLE*

Seal gaps

around

Housing.

*Purchase separately.

INSULATION*

(Place around and

over Fan Housing.)

FAN

ROUND

DUCT*

Seal duct

joints with

tape.

ROUND

ELBOWS*

ROOF CAP*

(with built-in

damper)

Keep duct

runs short.

WALL CAP*

(with built-in

damper)

Page 3

New Construction Installation

XB110H Installation Guide

Tools needed

• Power screwdriver with a Phillips bit

• Phillips screwdriver

• Flathead screwdriver

• Pliers

• Wire insulation stripper

• Wire cutter

Remove Packaging

Parts Bag holds Knockout Plate and six (6) screws

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

Punch out Mask from

packaging. See Step 6.

Remove Instruction Sheet

Install

Mounting Frame

Page 4

New Construction Installation

Snap-in and

Secure Housing

snap!

XB110H Installation Guide

Attach Duct Connector and Ducting

Top and bottom flanges go outside Housing

Insert tab into slot inside Housing

Screws from Parts Bag

Position Housing between joists and crimp channel on both sides of Mounting Frame to lock Housing in place.

Do not crimp Housing.

Screw from

Parts Bag

6" Ducting

Tape

Page 5

New Construction Installation

Connect 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.

Attach cable clamp to Knockout

Plate. Knockout Plate mounts to

outside of Housing and may be

oriented as desired.

Connect wires

XB110H Installation Guide

Screw from

Parts Bag

BLK

120 VAC

LINE IN

WHT GRD

BLACK WHITE

SENSOR

CONTROL

SWITCH*

purchase separately

STANDARD OR MULTI-

FUNCTION WALL SWITCHES

SENSOR/ CONTROL

MANUAL

SWITCH*

MANUAL-ON

RED BROWN

SWITCH BOX

120 VAC

LINE IN

14/3

(IF ALL

WALL SWITCH

OPTIONS

ARE USED)

RED BLK WHT GRD

ORANGE GROUND

(green or bare)

KNOCKOUT

PLATE

BLK

ORG

BRN

RECEPTACLES

RED

FAN

BLK

SENSOR/ CONTROL

WHT

• See OPERATION section on page 12 for details.

• SENSOR/CONTROL switch turns humidity control on for automatic operation and off for fan cleaning and maintenance purposes.

• MANUAL-ON switch directly turns fan on/off.

• MANUAL-ON switch is not required to manually turn fan on (see page 10).

• SENSOR/CONTROL switch may be located where it is not easily accessed for everyday usage; it may need to be labeled and located where it can’t be turned on without being seen from fan to comply with local and national codes.

Page 6

New Construction Installation

Insert Mask and

Finish Ceiling

• Install ceiling material.

• Cut out around Housing.

CAUTION

IN ORDER TO PREVENT MOTOR/CONTROL DAMAGE:

If the blower was unplugged, power must be disconnected (see page 2, WARNING item 2) before inserting motor plugs into control assembly.

XB110H Installation Guide

Mask protects unit

during construction.

Remove before installing Grille.

Install Grille

Plug in Sensor

See Page 12 for Operations, Cleaning and Maintenance, and Troubleshooting.

Page 7

Retrofit Installation

XB110H Installation Guide

Tools needed

• Power screwdriver with a Phillips bit

• Phillips screwdriver

• Flathead screwdriver

• Pliers

• Wire insulation stripper

• Wire cutter

• 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

Remove Packaging

Parts Bag holds Knockout Plate and six (6) screws

Remove Instruction Sheet

Punch out Mask from

packaging. See Step 12.

Switch Off Power

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.

Enlarge Ceiling Opening and Remove Existing Fan

12" (30.5 cm)

11" (27.9 cm) parallel with joists

Existing ductwork and wiring left in place

Examine Wiring

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.

Page 8

Retrofit Installation

Remove Blower Assembly

XB110H Installation Guide

Both sides

Remove Wiring Panel

Set aside screw

Set aside Wiring Panel

Set aside Blower Assembly

Insert

Mounting Frame

Remove screws from Mounting Frame and set aside

Bend up four tabs

Page 9

Retrofit Installation

Secure

Mounting Frame

Snap-in Housing

XB110H Installation Guide

Screws set

aside

in Step 7

Pull existing ductwork into Housing

Pull existing wiring into Housing as it is inserted into Mounting Frame

snap!

Attach Ducting and Duct Connector

Screw from

Parts Bag

Insert tab into slot inside Housing

6" Ducting

Tape

Page 10

Retrofit Installation

Install Knockout Plate, Connect Wires and Reinstall Wiring Panel

Screw from

Parts Bag

• Use proper UL-approved connectors to secure wiring to the Knockout Plate provided in Parts Bag.

• Connect wires as shown in wiring diagram.

Attach cable clamp to Knockout

Plate. Knockout Plate mounts to

inside of Housing and may be

oriented as

XB110H Installation Guide

desired.

Screw set

aside in

Step 6

Connect

wires

• See OPERATION section on page 12 for details.

• SENSOR/CONTROL switch allows humidity control to be turned on for automatic operation and off for fan cleaning and maintenance purposes.

• Toggle mode can be used to manually turn fan on.

120 VAC

LINE IN

SENSOR/ CONTROL

BLK WHT GRD

BLACK WHITE

SENSOR

CONTROL*

purchase separately

BLK WHT GRD

BROWN

SWITCH BOX

120 VAC

LINE IN

14/2

ORANGERED GROUND

(green or bare)

BLK

ORG

BRN

KNOCKOUT

PLATE

RED

FAN

BLK

SENSOR/ CONTROL

WHT

RECEPTACLES

Pa g e 11

Retrofit Installation

Reinsert and Secure Blower Assembly

CAUTION

Power must be disconnected (see page 2, WARNING item 2) before inserting motor plugs into control assembly.

XB110H Installation Guide

IN ORDER TO PREVENT MOTOR/CONTROL DAMAGE:

Plug in Sensor

Install Grille

2 3

Screws from Parts Bag

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.

Page 12

XB110H Installation Guide

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

It is normal for this ventilation fan to take approximately 5 seconds to start running after it is turned on.

Modes

(For reference, wiring diagrams are on pages 5 and 10.)

Humidity sensing:

1. Turn sensor/control wall switch on (make sure manual-

on wall switch is off if it is installed).

2. Sensor monitors humidity level for (a) moderate to rapid

rise or (b) above set-point.

3. Fan operates at certified airflow rate to reduce humidity.

4. When humidity decreases, fan enters time delay mode.

(See below.)

Manual-on (optional manual-on wall switch must be

installed):

1. Turn manual-on wall switch on (sensor/control wall

switch can be on or off).

2. Fan operates at certified airflow rate.

3. Fan turns off when manual-on wall switch is turned off.

Toggle (for manual operation when optional manual-on

wall switch is not installed or manually activated timedoff is desired):

1. Turn sensor/control wall switch on (make sure manual-

on wall switch is off if it is installed).

2. Wait at least one-second.

3. Turn switch off for less than one-second.

4. Turn switch back on.

5. Fan will operate at certified airflow rate and enter time

delay mode. (See next.)

Time Delay:

Fan continues to run until user-adjustable TIME delay has passed, then fan turns off.

To Set User-Adjustable Humidity Sensitivity**

Using a small, flat-blade screwdriver, carefully rotate HUMIDITY adjustment until arrow points to desired humidity level shown in percent relative humidity (%RH).

To Set User-Adjustable Time Delay**

Using a small, flat-blade screwdriver, carefully rotate TIME adjustment until the arrow points to the desired minutes of time delay. ** User-adjustable controls are located in corner of Fan

Housing behind Grille.

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.

Do not use cleaning sprays, solvents or water on, or near, the sensor.

Motor is permanently lubricated and never needs oiling. If motor is making excessive or unusual noises, replace Control Assembly and Motor.

Troubleshooting

Before continuing, turn off power as previously noted in WARNING and CAUTION sections at the top of this page.

Symptom: 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 two (2) plug-in connections for Sensor and its Control are seated firmly in place.

• Check that the Blower Wheel spins freely.

Symptom: Humidity mode does not operate fan.

• Check two (2) plug-in connections for Sensor and its Control are seated firmly in place.

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.

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