NuTone BN100C, NT080C, NT100C Instruction Manual

Page 1

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.

READ AND SAVE THESE INSTRUCTIONS

WARNING

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. Never place a switch where it can be reached from a tub or
shower.

9. This unit must be grounded.

10.When applicable local regulations comprise more restrictive

installation and/or certification requirements, the aforementioned
requirements prevail on those of this document and the
installer agrees to conform to these at his own expenses.

11.When performing installation, servicing or cleaning this unit, it

is recommended to wear safety glasses and gloves.

CAUTION

1.For general ventilating use only. Do not use to exhaust

hazardous or explosive materials and vapors.

2.To avoid motor bearing damage and noisy and/or unbalanced

impellers, keep drywall spray, construction dust, etc. off power unit.

3.Please read specification label on product for further information

and requirements.

Installer: Leave this manual with the homeowner.

Homeowner: Use and Care information on page 4.

30042353C

!

TYPICAL INSTALLATIONS TYPICAL INSTALLATIONS

16”-ON-CENTER CEILING JOISTS

Housing mounted directly to joist.

24”-ON-CENTER CEILING JOISTS

Housing mounted additional framing.

MODELS BN100C • NT080C • NT100C

MODELS BN100C, NT080C
& NT100C VENTILATION FANS

REGISTER YOUR PRODUCT ONLINE AT

• For Broan BN100C: www.broan.ca

• For NuTone NT080C or NT100C: www.nutone.ca

POWER CABLE

MOUNTING TABS

CEILING

JOIST

HOUSING

BH0009A

CEILING

MATERIAL

GRILLE

POWER CABLE

CEILING

MATERIAL

BH0010A

4" ROUND

DUCT

MOUNTING TABS

HOUSING

ADDITIONAL

GRILLE

FRAMING

CEILING

JOIST

Page 2

MODELS BN100C • NT080C • NT100C

SUSPENDED CEILINGS

Housing hung with wires - 3-point mount.

NEW CONSTRUCTION

1.Choose the location for your fan in the ceiling. For best possible
performance, use the shortest possible duct run and a minimum
number of elbows.

2.Position mounting tabs against joist so that bottom edge of
housing will be flush with finished ceiling.

Additional positioning feature for 5/8”, 1” & 1¼” thick ceiling
material:

Holes in corners of housing are labeled with various ceiling
material thicknesses. Position housing so bottom edge of
joist is visible through a matched set of holes. The housing is
now in the proper position for that ceiling material thickness.

Additional positioning feature for 1/2” thick ceiling material:
Bend two tabs, on side of housing, 90° outward. Lift housing

until tabs contact underside of joist.

Mark the keyhole slot on both mounting tabs.

NEW CONSTRUCTION (CONT’D)

3.Set housing aside and drive nails partially into joist at the top of
both keyhole marks.

4.Hang housing from nails and pound nails tight. To ensure a
noise-free mount, pound another nail through the top hole of
each mounting tab.

1.Choose the location for your fan in the ceiling. For best possible
performance, use the shortest possible duct run and a minimum
number of elbows.

2.In attic, position mounting brackets against joist. Trace outline of
housing on ceiling material.

3.Set housing aside and cut ceiling opening slightly larger than
marked.

EXISTING CONSTRUCTION

BOTTOM EDGE OF JOIST

TA B

TYPICAL INSTALLATIONS (CONTINUED) INSTALL THE HOUSING (CONTINUED)

INSTALL THE HOUSING

4" ROUND

DUCT

POWER

CABLE

MOUNTING

SUSPENDED

CEILING MATERIAL

BH0011A

HOUSING

GRILLE

TAB

1-1/4

1

5/8

BR0003

BR0004

Page 3

MODELS BN100C • NT080C • NT100C

1.Snap the damper/duct connector onto housing. Make sure that
tabs on the connector lock into slots in housing. Top of
damper/duct connector should be flush with top of housing.

2.Connect 4” round duct to damper/duct connector and extend
duct to outside through a roof or wall cap. Check damper to
make sure that it opens freely. Tape all duct connections to
make them secure and air tight.

5.Additional mounting holes are provided for installations where
access from above is inconvenient or not possible. Nail or screw
housing directly to joists or framing.

4.Place housing in opening so that its bottom edge is flush with
finished ceiling. Nail to joist through keyhole on both sides. To
ensure a noise-free installation, drive another nail through the
top hole of each mounting tab.

EXISTING CONSTRUCTION (CONT’D)

1.Wire unit following diagram above. Run electrical cable as direct
as possible to unit. Do not allow cable to touch sides or top of
unit after installation is complete.

1.Squeeze grille springs together.

2.Insert springs into slots in motor
plate.

BJ0003

ADDITIONAL

MOUNTING

HOLES

FLUSH

SCHEMATIC WIRING DIAGRAM

3.Push grille up against ceiling.

SLOT IN MOTOR PLATE

GRILLE SPRING

SPRING TABS

INSTALL THE HOUSING (CONTINUED) CONNECT THE WIRING

INSTALL THE DUCTWORK

ATTACH THE GRILLE

BD0003