BR-751 Installation Instructions

BR-751 Installation Instructions
MODEL 751
®
FAN / LIGHT
COMBINATION VENTILATOR
Page 1
READ AND SAVE THESE INSTRUCTIONS
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. 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 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.
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
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.
Plan to run 120 VAC house wiring (with ground) from power source,
through wall switch, to junction box in housing. For separate control of fan and light use an optional Broan switch.
IMPORTANT: Use wire suitable for 90oC.
MODEL 751
®
Page 2
INSTALLATION IN A
NEW CONSTRUCTION SITE
PREPARATION
1. Refer to Figure 1. Remove power unit/blower assembly from
housing.
A. Unplug power unit.
B. Remove screw (located next to plug-in receptacle) which holds
power/blower unit mounting plate in place. Save screw.
C. Lift mounting plate at end near the plug-in receptacle until blower
wheel clears the scroll.
D. Remove plate by pulling its tabs out of slots in housing. Set
power/blower unit aside until needed.
MOUNTING THE HOUSING
MOUNTNG USING MOUNTING TABS
Refer to Figure 2.
1. Locate fan housing next to ceiling joist.
2. Use wood screws (not provided) to loosely attach housing to
ceiling joist through the keyhole slots in mounting tabs.
3. Adjust housing so that it will be flush with finished ceiling. For
the grille to fit properly, the housing’s rim must not extend beyond finished ceiling surface.
4. When housing is properly adjusted, tighten screws in slots.
MOUNTING USING HANGER BARS
Refer to Figure 3.
1. Insert hanger bars in slots provided in housing.
2. Locate fan housing between joists so that the bottom of the
housing is even with the planned finished ceiling. Extend the
hanger bars to the joists.
3. Use screws or nails (not provided) to secure hanger bars to
ceiling joists.
INSTALLING DUCTWORK
1. Refer to Figure 2. Place duct collar over flanges at discharge
opening of fan. Secure collar by snapping tabs into slots in
flanges.
2. Run 4" round duct from fan’s discharge opening to the outside
and terminate.
3. Connect duct to fan’s duct collar.
WIRING
All wiring must comply with local codes and unit must be properly grounded.
1. Run 120vAC house wiring (with ground) from wall switches to
fan location.
2. Insert and secure an approved box connector into wiring entrance hole.
3. Pull wires through box connector and into junction box. Tighten
box connector.
4. Refer to Figure 4. Connect white wires from the fan and light
receptacles to white (neutral) wire from the supply. Connect
black wire from fan receptacle (black) to wire from fan switch.
Connect black wire from light receptacle (white) to wire from
light switch.
5. Connect the green (or bare) ground wire to the green ground
lead.
MODEL 751
®
Page 3
POWER/BLOWER UNIT INSTALLATION
1. Refer to Figure 1. Place power/blower unit into housing so that
mounting plate’s tabs insert into slots in housing.
2. Press other end of mounting plate down until it is firmly seated
over scroll and plug-in receptacles.
3. Secure mounting plate to housing with provided screw.
4. Insert motor plug into junction box receptacle.
COMPLETING INSTALLATION
1. Insert lamp plug into junction box receptacle and secure reflector assembly to motor frame with wing nut provided.
2. Insert lamp (100 watt maximum) into the socket.
NOTE: Lamp must be purchased separately.
3. Insert the grille assembly’s mounting springs into the slots on
both sides of the housing by squeezing the springs together.
4. Press grille assembly firmly into place against the ceiling.
INSTALLATION IN EXISTING CONSTRUCTION
PLANNING
Review “INSTALLATION IN A NEW CONSTRUCTION SITE” and
follow all instructions which apply to your installation.
LOCATION: Locate fan between ceiling joists.
WIRING AND DUCTING: Plan ducting and wiring BEFORE proceeding with installation. Refer to Figures 4 and 5 for wiring and
Figure 3 for ducting.
CAUTION: Check area above planned location to be sure that:
1. Ducting can be installed or that area is sufficient for proper
venting.
2. Wiring can be run to the planned location.
3. No wiring or other obstruction might interfere with installation.
INSTALLATION
1. The fan must be mounted between ceiling joists. Decide where
you want to locate the fan, and then determine where the nearest joists are.
2. Locate the joists. Drill a starter hole in the ceiling between the
joists.
3. To exactly locate the edge of joist, saw a line from hole to joist.
4. Refer to page 1. Remove power/blower unit from housing.
5. Use the housing pan as a template to mark cutout: place pan
centered between joist and trace around pan.
6. Make cutout along outside of marked line.
7. Refer to Figure 6. Install 2 x 4 cleats to both ceiling joists. In
some cases it may be necessary to use more than a single cleat
on one side. The distance between cleats must be at least 9 1 /
8" but not more than 10".
8. Remove side wiring knockout and insert and secure an approved box connector into the wiring entrance hole.
9. Use pliers to bend both mounting tabs as flush as possible to
the side of the housing.
10. Install duct collar.
11. String wiring through box connector and connect 4" flexible
duct to duct collar.
12. Carefully push ductwork and wiring back into cutout. Place
housing into cutout.
13. Use wood screws to secure housing to cleats through four
holes in housing’s pan. make sure pan is flush to finished ceiling.
14. Install Power/Blower Unit and complete installation.
MODEL 751
®
USE AND CARE
USE AND CARE
WARNING: DISCONNECT ELECTRICAL POWER SUPPLY AND
LOCK OUT SERVICE PANEL BEFORE RELAMPING, CLEANING, OR SERVICING THIS UNIT.
CLEANING
Page 4
Pull grille assembly away from ceiling.
Squeeze the grille assembly’s mounting springs together, and
remove grille asembly from housing for cleaning.
RELAMPING
Pull grille assembly away from ceiling.
Clean grille and lens assembly using a mild soap and water solution. Assemblies with wood frames should not be immersed.
Squeeze the grille assembly’s mounting springs together, and
remove grille asembly from housing to expose socket for relamping.
Replace grille assembly flat against the ceiling after cleaning.
Insert lamp (100 watt maximum) into the socket. NOTE: Lamp
must be purchased separately.
MOTOR LUBRICATION
Replace grille assembly flat against the ceiling after relamping.
The motor is permanently lubricated. Do not oil or disassemble
motor.
SERVICE PARTS
KEY
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
PART NO.
61735-000
86933-000
32787-000
32788-000
5901A-000
63007-000
86000-000
85979-000
30652-000
44388-000
0871B-000
85968-000
61738-000
0444A-000
16133-000
82304-000
10034-000
89248-206
DESCRIPTION
Power Unit Assembly
Motor
Motor Isolation Mount
Ground Clip
Blower Wheel
Push Nut
Reflector Assembly
Lamp Socket
Duct Adapter Assembly
Hanger Bar
Grille Assembly
Grille and Spring Assembly
Lens
Grille Spring (2 req.)
Wing Nut
Light Receptacle
Fan Receptacle
Reflector
WARRANTY
BROAN-NUTONE ONE YEAR LIMITED WARRANTY
Broan-NuTone 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-NuTone 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 AND TUBES.
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-NuTone), 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-NUTONE’S OBLIGATION TO REPAIR OR REPLACE, AT BROAN-NUTONE’S OPTION,
SHALL BE THE PURCHASER’S SOLE AND EXCLUSIVE REMEDY UNDER THIS WARRANTY.
BROAN-NUTONE 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.
* Not shown assembled.
Order replacement parts by “PART NO.” - not by “KEY NO.”
10/02
part no. 61742
99043079D
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement