Broan ZB110HL Installation Manual

READ AND SAVE THESE
INSTRUCTIONS

ZB110HL

X2 | Multi-Speed Ventilation
Fan with Light, Night Light

and Humidity Sensor

INSTALLATION GUIDE

Easy installation in both
new construction and retrofit

© 2017 Broan

Table of Contents

W

arnings and Cautions
Typical Installation
New Construction Installation
Retrofit Installation
Operation
Cleaning and Maintenance
Troubleshooting
Service Parts

2
2
3

7
12
12
12
13

Page 2

ZB110HL 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.

HOUSING

POWER
CABLE*

Seal gaps

around

Housing.

*Purchase
separately.

INSULATION*

(Place around and

over Fan Housing.)

FAN

ROUND

DUCT*

Seal duct

joints with

tape.

OR

ROUND

ELBOWS*

ROOF CAP*

(with built-in

damper)

Keep duct

runs short.

WALL CAP*

(with built-in

damper)

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

Page 3

New Construction Installation

ZB110HL Installation Guide

Tools needed

• Power screwdriver with a Phillips bit

• Phillips screwdriver

• Flathead screwdriver

• Pliers

• Wire insulation stripper

• Wire cutter

Remove Packaging

1

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

• 4W (max.) C7-type night light bulb

Remove CFL Bulbs

from protective packaging

Remove
Instruction
Sheet

Punch out Mask from

packaging. See Step 6.

Install

2

Mounting
Frame

2

1

4

3

Page 4

New Construction Installation

Snap-in and

3

Secure Housing

2

snap!

ZB110HL Installation Guide

1

4

4

Screws from Parts Bag

3

Attach Duct Connector and Ducting

Top and bottom flanges
go outside Housing

Insert tab into slot
inside Housing

1

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

Do not crimp Housing.

Screw from

2

Parts Bag

6" Ducting

3

Tape

Page 5

New Construction Installation

Connect Wires and Install Knockout Plate

5

• 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.

• Do not use a dimmer switch to operate the light.
Attach cable clamps to Knockout

1

Plate. Knockout Plate mounts to

outside of Housing and may be

oriented as desired.

ZB110HL Installation Guide

3

Fan

WHT

120 VAC

LINE IN

SENSOR / CONTROL

BLK
GRD

SENSOR/CONTROL

BLACK
WHITE
ORANGE

MANUAL - ON

MASTER

(purchase separately)

Light

2

MULTI-FUNCTION

WALL SWITCHES

MANUAL-ON

MASTER

RED
BLUE
BROWN

MULTI-FUNCTION

WALL CONTROLS

Connect wires

LIGHT

NIGHT

LIGHT

SWITCH

BOX

LIGHT

NIGHT
LIGHT

WHT
BLK
RED

RED
BLU
BLK
WHT
GRD

GROUND
(green or bare)

120 VAC

LINE IN

KNOCKOUT

14/3
14/4

(IF ALL

WALL SWITCH

OPTIONS

ARE USED)

LIGHT RECEPTACLE WIRES

PLATE

ORG

RECEPTACLES

FAN RECEPTACLE

WIRES

RED

BRN

BLU

RED

BLK

4

Screw from

Parts Bag

• See OPERATION
section on page 12 for
details.

• MASTER switch

WHT

LIGHT

NIGHT
LIGHT

SENSOR/
CONTROL

BLK

FAN

WHT

• MANUAL-ON switch is not required
to manually increase fan operation to
certified airflow rate (see page 10).

• MASTER and SENSOR/CONTROL
switches can be combined (see page

10).

• MASTER switch along with or
separate from SENSOR/CONTROL
switch may be located where they
are not easily accessed for everyday
usage, they may need to be labeled
and located where they can’t be
turned on without being seen from
fan to comply with local and national
codes.

turns fan system on
and shuts it off for
fan cleaning and
maintenance purposes.

• SENSOR/CONTROL
switch turns humidity
control automatic
operation on/off.

• MANUAL-ON switch
directly increases fan
operation to certified
airflow rate.

• MASTER switch must
be on for humidity
control or MANUAL-ON
switch to change fan
operation to certified
airflow rate.

Page 6

New Construction Installation

Insert Mask and

6

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.

Install Grille

7

ZB110HL Installation Guide

Mask protects unit

during construction.

Remove before
installing Grille.

Plug in
Sensor

Install Bulbs

8

1

Plug in

2

Light

3

4

3

2

1

Night Light

(purchase

separately)

4

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

Page 7

Retrofit Installation

ZB110HL 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

• 4W (max.) C7-type night light bulb

Remove Packaging

1

Remove
Instruction
Sheet

Parts Bag holds
Knockout Plate
and six (6)
screws

Remove CFL Bulbs

from protective packaging

Switch Off Power

2

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.

Punch out Mask from

packaging. See Step 12.

Enlarge Ceiling Opening and Remove Existing Fan

3

12" (30.5 cm)

1

11" (27.9 cm)
parallel with joists

Existing ductwork and
wiring left in place

Examine Wiring

4

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.

2

Page 8

Retrofit Installation

Remove Blower Assembly

5

ZB110HL Installation Guide

6

2

Both sides

Remove Wiring Panel

Set aside
screw

1

2

1

Set aside
Blower
Assembly

3

Set aside
Wiring Panel

3

Insert

7

Mounting
Frame

4

3

1

Remove screws from
Mounting Frame
and set aside

5

2

Bend up
four tabs

Page 9

Retrofit Installation

Secure

8

Mounting
Frame

Snap-in Housing

9

ZB110HL Installation Guide

Screws set

aside

in Step 7

2

10

Pull existing
ductwork
into Housing

1

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

snap!

Attach Ducting and Duct Connector

1

2

4

Screw from

Parts Bag

3

Insert tab into
slot inside
Housing

6" Ducting

Tape

Page 10

Retrofit Installation

Install Knockout Plate, Connect Wires and Reinstall Wiring Panel

11

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

• Connect wires as shown in wiring diagram.

• Do not use a dimmer switch to operate the light.

1

mounts to inside of

2

Screw from

Parts Bag

Attach cable

clamps to

Knockout Plate.

Knockout Plate

Housing and may

be oriented

as desired.

ZB110HL Installation Guide

Screw set

aside in

Step 6

5

6

4

Connect wires

3

Fan

Light

• See OPERATION section on page
12 for details.

• MASTER switch turns fan system on
along with humidity control and shuts
them off for cleaning and maintenance
purposes.

• Toggle mode can be used to manually
increase fan operating airflow to certified
rate.

• MASTER 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.

GRD
WHT

120 VAC

LINE IN

BLK

BLACK
WHITE
ORANGE

MASTER

STANDARD OR

MULTI-FUNCTION

WALL CONTROLS

(purchase separately)

MULTI-FUNCTION

MASTER

LIGHT

STANDARD OR

WALL SWITCHES

NIGHT
LIGHT

LIGHT

NIGHT
LIGHT

RED
BLUE
BROWN

SWITCH

BOX

120 VAC

LINE IN

GRD
WHT
BLK
RED

14/3

14/2

BLK
WHT

GROUND
(green or bare)

LIGHT RECEPTACLE WIRES

KNOCKOUT

PLATE

WHT

BLU

LIGHT

RED

NIGHT
LIGHT

BLK

FAN

RED

BLK

BRN

SENSOR/
CONTROL

ORG

WHT

RECEPTACLES

FAN RECEPTACLE

WIRES

Pa g e 11

1

2 3

Retrofit Installation

Reinsert and Secure Blower Assembly

12

CAUTION

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

ZB110HL Installation Guide

IN ORDER TO PREVENT MOTOR/CONTROL DAMAGE:

13

14

Install Grille

Plug in
Sensor

1

Install Bulbs

1

If ceiling repairs are needed, place Mask in Housing after Blower

3

Assembly is secured. See New Construction Installation Step 6.

Plug in

2

Light

2 3

Remove Mask before installing Grille.

4

Screws from Parts Bag

2

1

3

Night Light

(purchase

separately)

4

Page 12

ZB110HL 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.)
Continuous ventilation:

1. Turn master wall switch on (make sure any other wall
switches are off).

2. Fan operates at user-adjustable airflow rate.

Humidity sensing:

1. If master wall switch is not already on, turn it on.

2. Turn sensor/control wall switch on (make sure any other wall
switches are off). Some installations may not have a separate
sensor/control wall switch; where it is combined with master
wall switch.

3. Sensor monitors humidity level for (a) moderate to rapid rise
or (b) above set-point.

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

5. When humidity decreases, fan enters time delay mode. (See
below.)

Manual-on (optional manual-on wall switch must be installed):

1. Turn master and manual-on wall switches on (sensor/control
wall switch can be on or off).

2. Fan operates at certified airflow rate.

3. When manual-on wall switch is turned off, fan enters timed­off mode. (See below.)

Toggle (for manual operation when optional manual-on wall
switch is not installed):

1. If master wall switch is not already on, turn it on.

2. Turn sensor/control wall switch on (make sure any other wall
switches are off). Some installations may not have a separate
sensor/control wall switch; where it is combined with master
wall switch then turn master wall switch on and off using
following instructions.

3. Wait at least one-second.

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

5. Turn switch back on.

6. Fan will operate at certified airflow rate and enter time delay
mode. (See next.)

Time Delay:
Fan operates at certified airflow rate until user-adjustable TIME
delay has passed, then fan reverts to user-adjustable airflow rate.

To Set the User-Adjustable Airow Rate*

Using a small, flat-blade screwdriver, carefully rotate the CFM
adjustment until the arrow points to the desired airflow rate.

To Set the User-Adjustable Time Delay*

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

Fan Housing, behind the Grille.

To Turn Fan OFF

Turn the master switch OFF.

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.

To Change Bulbs

Refer to Retrofit Installation Step 14 (page 11).

1. Carefully insert a small flathead screwdriver between the Grille
and Lens, then twist to remove Lens.

2. Purchase two (2) 18W (max.) type GU24 fluorescent lamps
with Maximum Overall Length (MOL) of 3.9” (100 mm).
Purchase a 4W (max.) C7-type incandescent night light bulb.

3. Insert bulbs into their sockets. Replace Lens.

M.O.L.

3.9" (100 mm)

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).
** User-adjustable humidity sensitivity is located in corner of
Fan Housing behind Grille.

Page 13

ZB110HL Installation Guide

Troubleshooting

Before continuing, turn off power as previously noted in WARNING
and CAUTION sections on the previous page.

Symptom: Fan does not run.

• Check for an open fuse or circuit breaker in building’s service
panel.

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

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

• Check that Blower Wheel spins freely.

Symptom: Humidity mode does not operate fan at certied air
ow rate.

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

Symptom: Fan runs erratically.

• Check that Blower Wheel is firmly attached to Motor shaft and
both spin freely.

Symptom: Fan seems noisy.

• Check that back draft damper in fan’s Duct Connector pivots
freely. Screws used to attach duct to Duct Connector may
prevent damper from opening.

• Check that back draft damper in wall or roof cap pivots freely.
Dampers are sometimes mistakenly painted shut or obstructed
by bird or insect debris.

Symptom: Fan does not properly ventilate room.

• For spot ventilation, turn both master switch and sensor/control
wall switch ON, so sensor/control operates fan at certified
airflow rate.

• For spot ventilation followed by continuous ventilation, increase
the “TIME” setting of user-adjustable time delay.

• For continuous ventilation, increase “CFM” setting of user­adjustable airflow rate.

Service Parts

7

Order replacement
parts by Part No.,
not by Key No.

1

2

3

4

6

8

9

11

5

Key No. Part No. Description

1 97018349 Mounting Frame
2 97018721 Knockout Plate & Screws

3 97018382 Housing

4 97018474 Wiring Panel/Harness Assembly
5 97019012 Humidity Control Assembly & Grille Assembly

(includes Key Nos. 10, 11)

6 97020845 Control Assembly & Motor
7 97018331 Duct Connector - 6"
8 99020301 Blower Wheel
9 97018768 Scroll Assembly

10 99140208 Grille Spring (2 req’d)

11 99111542 Lens

12 99271381 Bulb, GU24 18W 3500K Fluorescent (2 req’d)

10

12

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