Broan 750 - User Manual

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MODEL 750
!
WARNING
TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR IN-
JURY 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 promi-
nent warning device, such as a tag, to the service panel.
3. Installation work and electrical wiring must be done by a quali-
fied person(s) in accordance with all applicable codes and stan-
dards, 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 authori-
ties.
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. Never place a switch where it can be reached from a tub or
shower.
9. To reduce the risk of electrical shock, do not use this fan with
any solid-state speed control.
10. Not for use in kitchens.
11. Do not install in a ceiling insulated to a value greater than R-40.
12. This unit must be grounded.
CAUTION
1. For general ventilating use only. Do not use to exhaust hazard-
ous 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 informa-
tion and requirements.
FAN / LIGHT / NIGHT LIGHT
COMBINATION VENTILATOR
READ AND SAVE THESE INSTRUCTIONS
FOR BEST RESULTS
When installing the Exhaust Fan/Light in a new construction site,
install housing during the rough-in construction of the building.
The blower unit, reflector and grille should be installed after the
finished ceiling is in place.
PLANNING DUCTWORK AND WIRING
DUCTWORK
1. Use 4" round duct.
2. Plan duct run from discharge opening of fan to the outside. For
best fan performance, make duct run as short as possible and
use minimum number of elbows.
3. Use optional Broan ducting accessories as needed.
WIRING
Plan to run 120 VAC house wiring (with ground) from power source,
through wall switch, to junction box in housing. For separate con-
trol of fan, light, night light, three wall switches are required and
five conductors are needed between the wall switch box and the
fan’s junction box.
IMPORTANT: Use wire suitable for 90
o
C.

Summary

General Safety Warnings and Cautions

General Safety Instructions

Important safety warnings to reduce risk of fire, electric shock, or injury to persons during installation and use.

General Cautionary Notes

Cautions for general ventilating use, avoiding motor damage, and adhering to specification labels.

Installation Best Practices

Tips for best results, including installing housing during rough-in and blower/grille after finished ceiling.

Planning Ductwork and Wiring

Ductwork Requirements

Specifications for duct size, run planning, and use of accessories for optimal fan performance.

Wiring Requirements

Guidelines for running 120VAC house wiring for separate control of fan, light, and night light.

New Construction Installation

Preparation Steps

Instructions for preparing the power unit and housing for installation in new construction.

Mounting the Housing

Methods for mounting the fan housing using mounting tabs or hanger bars for flush ceiling installation.

Installing Ductwork

Steps for connecting the 4" round duct from the fan discharge opening to the outside.

Wiring Connections

Procedure for connecting 120vAC house wiring from switches to the fan junction box.

Power;Blower Unit and Completing Installation

Power;Blower Unit Installation

Steps to install the power/blower unit into the housing and connect the motor plug.

Completing the Installation

Instructions for inserting lamps, securing the reflector, and attaching the grille assembly.

Existing Construction Installation

Planning for Existing Construction

Planning ducting and wiring, and checking for ceiling obstructions before installation.

Installation Steps for Existing Construction

Detailed steps for mounting the housing to cleats and securing it after cutting the ceiling opening.

Use and Care Instructions

Relamping Procedure

Instructions for safely removing and replacing lamps in the unit.

Cleaning Guide

Steps for cleaning the grille and lens assembly using mild soap and water.

Motor Lubrication

Note that the motor is permanently lubricated and does not require oiling.

Service Parts List

Product Warranty Information

Broan 750 Specifications

General

Model	750
Category	Fan
CFM	70
Light	No
Voltage	120V
Housing Material	Galvanized Steel
Mounting Type	Ceiling
Duct Diameter	4 inches
Motor Type	Permanently Lubricated