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Easy installation
LP80 & LP110
Lo Profile
Ventilation Fan
INSTALLATION GUIDE
Table of Contents
Warnings and Cautions |
2 |
Typical Installation |
2 |
Installation |
3-6 |
Operation |
7 |
Cleaning and Maintenance |
7 |
Troubleshooting |
7 |
Service Parts |
8 |
Warranty |
8 |
© 2018 Broan
Page 2 |
LP80 & LP110 n 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.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.
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 sloped 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.
NOT FOR USE IN A COOKING AREA
Do not install above or inside this area
45° 45°
Cooking
Equipment
Floor
Typical Installation
•Attaches to 2" x 4" or greater wall studs or ceiling joists.
Joists |
I-Joists |
Trusses |
INSULATION* (Place around and over Fan Housing.)
FAN
HOUSING
POWER 
CABLE* 
Seal gaps 
around 
Housing.
ROUND
DUCT*
Seal duct *Purchase joints with separately. tape.
OR 
ROUND 
ELBOWS* 
ROOF CAP* (with built-in damper)
Keep duct runs short.
WALL CAP* (with built-in damper)
CEILING INSTALLATION SHOWN
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.
Page 3 |
LP80 & LP110 n Installation Guide |
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
1 Remove from Packaging
Punch out Mask from packaging. See Step 5.
4-in. to 3-in. Reducer (LP80 only)
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LP80 & LP110 n Installation Guide |
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Installation |
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2 Install in Wall or Ceiling |
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Screw |
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through housing |
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on opposite side |
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Tighten Screw into |
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housing to secure |
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mounting |
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Ceiling |
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3 Install Ducting |
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3" Ducting |
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4" Ducting |
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Reducer |
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Tape |
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Tape |
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Insert tab into slot |
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in housing. |
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Installation |
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Connect Wires |
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Run 120VAC electrical wiring to the installation location. |
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Use proper UL-approved connectors to secure wiring to the Knockout Plate. |
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Connect wires as shown in wiring diagram. |
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Connect |
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wires |
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Attach cable 2 clamp to Knockout
Plate. Knockout Plate may be oriented as desired.
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BLK |
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SWITCH |
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WHT |
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BLK |
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120 VAC WHT |
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LINE IN |
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GROUND (green or bare) |
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SWITCH |
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SWITCH BOX |
KNOCKOUT
PLATE
120 VAC LINE IN
Page 6 |
LP80 & LP110 n Installation Guide |
Installation
5 Insert Mask and Finish Wall or Ceiling
Use |
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paint |
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REMOVEfrom |
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GRILLE. |
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79350207A |
Mask protects unit during construction.
Remove before installing Grille.
6 Install Grille
Squeeze grille springs and insert into slots in housing.
2
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.
LP80 & LP110 n Installation Guide
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.
Page 8 |
LP80 & LP110 n Installation Guide |
Service Parts
6 
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1 |
8 |
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5 |
4 |
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3 |
Key No. |
Part No. |
Description |
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1 |
77001277 |
Duct Connector Assembly |
2 |
79140014 |
Grille Spring (2 included) |
3 |
77001280 |
Grille Assembly (includes 2 grille springs) |
4 |
77001297 |
Capacitor (LP80) |
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1100050 |
Capacitor (LP110) |
5 |
77001298 |
Wire Panel Assembly |
6 |
79110158 |
4” to 3” Reducer (LP80 only) |
7 |
77001299 |
Hanger Bar |
8 |
77001300 |
Knockout Plate |
9 |
97020043 |
Blower Assembly (LP80) |
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1100048 |
Blower Assembly (LP110) |
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Order replacement parts by Part No., not by Key No.
Warranty
BROAN ONE YEAR LIMITED WARRANTY
Broan warrants to the original consumer purchaser of its products that such products will be free from defects in materials or workmanship for a period of one year from the date of original purchase. THERE ARE NO OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
During this one-year period, Broan will, at its option, repair or replace, without charge, any product or part which is found to be defective under normal use and service.
THIS WARRANTY DOES NOT EXTEND TO FLUORESCENT LAMP STARTERS, TUBES, HALOGEN AND INCANDESCENT BULBS, FUSES, FILTERS, DUCTS, ROOF CAPS, WALL CAPS AND OTHER ACCESSORIES FOR DUCTING. This warranty does not cover (a) normal maintenance and service or (b) any products or parts which have been subject to misuse, negligence, accident, improper maintenance or repair (other than by Broan), faulty installation or installation contrary to recommended installation instructions.
The duration of any implied warranty is limited to the one-year period as specified for the express warranty. Some states do not allow limitation on how long an implied warranty lasts, so the above limitation may not apply to you.
BROAN’S OBLIGATION TO REPAIR OR REPLACE, AT BROAN’S OPTION, SHALL BE THE PURCHASER’S SOLE AND EXCLUSIVE REMEDY UNDER THIS WARRANTY. BROAN SHALL NOT BE LIABLE FOR INCIDENTAL, CONSEQUENTIAL OR SPECIAL DAMAGES ARISING OUT OF OR IN CONNECTION WITH PRODUCT USE OR PERFORMANCE. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you.
This warranty gives you specific legal rights, and you may also have other rights, which vary from state to state. This warranty supersedes all prior warranties.
To qualify for warranty service, you must (a) notify Broan at the address or telephone number below, (b) give the model number and part identification and (c) describe the nature of any defect in the product or part. At the time of requesting warranty service, you must present evidence of the original purchase date.
Broan
926 W. State Street, Hartford, Wisconsin 53027 www.broan.com 800-558-1711
99045483B
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