Broan ZB80, ZB110 Installation Manual

READ AND SAVE THESE INSTRUCTIONS

Installer: leave this guide with homeowner.

ZB80

ZB110

X2 | Multi-Speed Ventilation Fan

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

ZB80 n ZB110 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 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.

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

ZB80 n ZB110 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!

ZB80 n ZB110 Installation Guide

Attach Duct Connector and Ducting

Top and bottom flanges go outside Housing

Insert tab into slot inside Housing

6" Ducting

Tape

Screws from Parts Bag

4" Ducting

Tape

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

Tape

6" to 4" Reducer provided in select models

Page 5

LINE

GRD GRD

WHT

BLK

RED

WHT

WHTRED

MASTER ON/OFF SWITCH

MODE SELECT SWITCH

FAN

UNITSWITCH BOX

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

ZB80 n ZB110 Installation Guide

Screw from

Parts Bag

MASTER ON/OFF SWITCH

BLK

LINE

WHT

GRD GRD

BLACK WHITE

MASTER

ON/OFF

SWITCH*

MODE

SELECT

SWITCH*

BLK

RED

MODE SELECT SWITCH

WHT

RED GROUND (green or bare)

SWITCH BOX

BLK

KNOCKOUT

PLATE

FAN

UNITSWITCH BOX

RECEPTACLE

WHTRED

purchase separately

120 VAC

LINE IN

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.

ZB80 n ZB110 Installation Guide

Mask protects unit

during construction.

Remove before installing Grille.

Install Grille

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

Page 7

Retrofit Installation

ZB80 n ZB110 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

ZB80 n ZB110 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

ZB80 n ZB110 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

4" Ducting

6" to 4" Reducer provided in select models

Tape

Page 10

LINE

GRD GRD

WHT

BLK

RED

WHT

WHTRED

MASTER ON/OFF SWITCH

MODE SELECT SWITCH

FAN

UNITSWITCH BOX

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

ZB80 n ZB110 Installation Guide

desired.

Screw set

aside in

Step 6

Connect

wires

LINE

MASTER ON/OFF SWITCH

BLK WHT

GRD GRD

MASTER

ON/OFF

SWITCH*

BLACK WHITE

MODE

SELECT

SWITCH*

MODE SELECT SWITCH

RED GROUND (green or bare)

SWITCH BOX

BLK

RED

WHT

BLK

FAN

UNITSWITCH BOX

RECEPTACLE

WHTRED

purchase separately

KNOCKOUT

PLATE

120 VAC

LINE IN

Pa g e 11

2 3

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.

ZB80 n ZB110 Installation Guide

IN ORDER TO PREVENT MOTOR/CONTROL DAMAGE:

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

ZB80 n ZB110 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

To Turn Fan ON

Turn the master switch ON. It is normal for this ventilation fan to take approximately 5

seconds to start running after it is turned on.

• Fan will run at the certified airflow rate if the mode select switch is ON.

• Fan will run at the user-adjustable airflow rate if the mode select switch is OFF.

To Use Fan Time Delay Airflow Rate Change

1. Turn the master switch ON.

2. Turn the mode select switch ON - fan will run at the

certified airflow rate.

3. When the mode select switch is turned OFF, fan will

continue to run at the certified airflow rate until the user-adjustable time delay has elapsed, and then will automatically change to the user-adjustable airflow rate.

To Set the User-Adjustable Airflow 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 the arrow points to the desired time delay, shown in minutes.

* The user-adjustable controls are located in one corner

of the Fan Housing, behind the Grille.

ZB80 User-adjustable controls

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.

Symptom: The fan does not properly ventilate the room.

• For spot ventilation, turn both the master switch and the mode select switch ON to enable the fan to run at the certified airflow rate.

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

• For continuous ventilation, increase the “CFM” setting of the user-adjustable airflow rate.

To Turn Fan OFF

Turn the master switch OFF.

ZB110 User-adjustable controls

+ 28 hidden pages