Broan LoProfile LPN80 User manual

LPN80
Lo Profile
Ventilation Fan
INSTALLATION GUIDE
READ AND SAVE THESE INSTRUCTIONS
Installer: leave this guide with homeowner.
Easy installation
2
2
3-6
7
7
7
8
Table of Contents
Warnings and Cautions
Typical Installation
Installation
Operation
Cleaning and Maintenance
Troubleshooting
Service Parts
© 2012 Broan-NuTone LLC

LPN80 nInstallation Guide
Page 2
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. Acceptable for use over a tub or shower (in the ceiling only)
when connected to a GFCI (Ground Fault Circuit Interrupter) -
protected branch circuit.
8. This unit must be grounded.
Typical Installation
CAUTION
1. For general ventilating use only. Do not use to exhaust
hazardous or explosive materials and vapors.
2. When installed in a wall or slope ceiling, the duct connector
must point up.
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.
45° 45°
NOT FOR USE IN A COOKING AREA
Do not install above or inside this area
Floor
Cooking
Equipment
Joists I-Joists Trusses
*Purchase
separately.
INSULATION*
(Place around and
over Fan Housing.)
ROOF CAP*
(with built-in
damper)
FAN
HOUSING
POWER
CABLE*
ROUND
DUCT*
ROUND
ELBOWS*
Seal gaps
around
Housing.
Seal duct
joints with
tape.
OR
Keep duct
runs short.
WALL CAP*
(with built-in
damper)
CEILING INSTALLATION SHOWN
•Attaches to 2" x 4" or greater
wall studs or ceiling joists.
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.
4-inch round rigid metal duct is recommended for best performance.

LPN80 nInstallation Guide
Page 3
Punch out Mask
from packaging.
See Step 5.
Installation
Tools needed
•Power screwdriver with a Phillips bit
•Phillips screwdriver
•Wire insulation stripper
•Wire cutter
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
•Drywall screws, sheet metal screws or wire
•Electrical wiring and supplies per local code requirements
1Remove from Packaging

LPN80 nInstallation Guide
Page 4
Installation
2Install in Wall or Ceiling
UP
Wall
- OR -
Wire
(3 places)
Screw
through housing
on opposite side
Tighten Screw into
housing to secure
mounting
1
2
3
2
14
3Install Ducting
1
2
Insert tab into slot
in housing.
1
2
- OR -
4" to 3"
Reducer
(provided)
Tape
4" Ducting
3" Ducting
Tape
Tape
É
É
É

LPN80 nInstallation Guide
Page 5
Installation
4Connect Wires
•Run 120VAC electrical wiring to the installation location.
•Use proper UL-approved connectors to secure wiring to the Knockout Plate.
•Connect wires as shown in wiring diagram.
Attach cable
clamp to Knockout
Plate. Knockout
Plate may be
oriented as
desired.
Connect
wires
120 VAC
LINE IN GRD
WHT
BLK
GRD
WHT
BLK BLK
WHT
UNITSWITCH BOX
ON/OFF
SWITCH
M
ON/OFF
SWITCH
(purchase separately)
KNOCKOUT
PLATE
RECEPTACLE
120 VAC LINE IN
SWITCH BOX
BLACK
WHITE GROUND (green or bare)
3
2
14

LPN80 nInstallation Guide
Page 6
1
Installation
6Install Grille
2
5Insert Mask and Finish Wall or Ceiling
Mask protects unit
during construction.
Remove before
installing Grille.
Use this mask to prevent construction dust, drywall spray,
or paint from damaging inside of product.
REMOVE MASK BEFORE INSTALLING GRILLE.
Utiliser ce couvercle pour empêcher la poussière de construction,
le plâtre ou la peinture d’endommager l’intérieur du produit.
ENLEVER LE COUVERCLE AVANT D’INSTALLER LA GRILLE.
Utilice esta cubierta para
prevenir daños al interior
del producto debidos
a polvo de construcción,
rociado en el panel de
yeso o pintura.
RETIRE LA CUBIERTA ANTES
DE INSTALAR LA REJILLA.
79350207A
Squeeze
grille springs
and insert
into slots
in housing.

LPN80 nInstallation Guide
Page 7
Operation
To Operate Fan
Use an ON/OFF switch or speed control to operate this
ventilator.
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.
Cleaning and Maintenance
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 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 plug-in connection for the Motor is 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
ducting 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.

LPN80 nInstallation Guide
Page 8
Service Parts
Order replacement parts by Part No., not by Key No.
Key No. Part No. Description
1 77001277 Duct Connector Assembly
2 79140014 Grille Spring (2 included)
3 77001282 Grille Assembly (includes 2 grille springs)
4 77001297 Capacitor
5 77001298 Wire Panel Assembly
6 79110158 4” to 3” Reducer
7 77001299 Hanger Bar
8 77001300 Knockout Plate
9 97020043 Blower Assembly
1
2
3
5
6
7
8
9
4
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