Broan RB80C, RB110C Installation Manual

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RB80C  RB110C

ULTRA ProTM | Ventilation Fan
with ULTRAQuick

INSTALLATION GUIDE

TM

Installation Technology

Easy installation in both
new construction and retrofit

© 2014 Broan-NuTone LLC

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

RB80C



RB110C 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. If this unit is to be installed over a tub or shower, it must be
marked as appropriate for the application and be connected
to a GFCI (Ground Fault Circuit Interrupter) - protected branch
circuit.

8. Use an on/off switch to operate this ventilator. Use of speed
controls may cause a motor humming noise.

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.

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)

Page 3

New Construction Installation

RB80C



RB110C 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

• 4" 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

2

Mounting
Frame

2

1

4

3

Page 4

New Construction Installation

Snap-in and

3

Secure Housing
and Muffler

2

snap!

RB80C

1



RB110C Installation Guide

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

Do not crimp Housing.

5

3

Screws from Parts Bag

Attach Flange, Transition and Ducting

4

Top and bottom flanges
go outside Housing

Insert tab into slot
inside Housing

1

4

Attach Muffler.

Screw from

2

Parts Bag

3

4" Ducting

Tape

Align

Transition

Tape

Flange

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.

Attach cable clamp to Knockout

1

Plate. Knockout Plate mounts to

outside of Housing and may be

oriented as desired.

Connect wires

2

3

RB80C

Screw from

Parts Bag



RB110C Installation Guide

4

BLK BLK

ON/OFF

SWITCH

BLK

LINE

(purchase separately)

WHT

IN

GRD

BLACK
WHITE GROUND (green or bare)

ON/OFF
SWITCH

WHT

GRD

SWITCH BOX

FAN

UNITSWITCH BOX

KNOCKOUT

PLATE

WHT

RECEPTACLE

120 VAC LINE IN