Broan 332H, 331H User Manual
MODELS 331H & 332H
EXTERIOR MOUNTED
BLOWER
FOR USE WITH RANGEMASTER HOODS AND ECLIPSE DOWNDRAFT VENTILATORS
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 or other hidden utilities.
WARNING
6. Ducted fans must always be vented to the outdoors.
7. To reduce risk of fire, use only metal ductwork.
8. This unit must be grounded.
CAUTION
1. For general ventilating use only. Do not use to exhaust
hazardous or explosive material 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.
4. Electrical circuit, including speed control, (if used),
must be rated 6 AMPS minimum for Model 332H or 3
AMPS minimum for Model 331H.
Important-when using Model 332H with the Broan
Eclipse Downdraft Models 2830-A or 2836-A: Purchase a #97011927 Speed Control Kit from your
Broan distributor to replace the speed control in
your downdraft.
SPECIFICATIONS
MODEL VOLTS AMPS CFM DUCT SIZE
331H 120 2.4 600 10 " DIA.
332H 120 5.7 900 10" DIA.
PLAN THE INSTALLATION
ALL INSTALLATIONS
1. Locate the blower so the length of the duct run and
number of elbows and transitions needed are kept to a
minimum.
Please note - when using blower with the Broan
Eclipse Downdraft: The downdraft has a 3¼" x 10"
discharge. Transitions are available to connect it to
the 10" round inlet on this exterior-mounted blower.
2. Where possible, blower should be centered between
wall studs or roof rafters.
INSTALLER: Leave This Manual With The Homeowner
HOMEOWNER: Use And Care Information On Page 3
PLAN THE INSTALLATION
3. Avoid pipes, wires, or other ductwork that may be
running through the wall.
4. Be sure that there is enough space for any transitions
that may be needed between the blower and the
connecting ductwork.
5. For best performance, locate transitions nearest to
ventilator (i.e. downdraft).
PREPARE THE INSTALLATION
LOCATION
ROOF INSTALLATIONS
PREPARE THE INSTALLATION
LOCATION
WALL INSTALLATIONS
1. Locate the blower on the rear slope of the roof.
Place it in a location to minimize duct run. The
location should be free of obstacles (T.V. leads,
electrical lines, etc.). Bear in mind, if the blower top
is level with the roof peak, it will not be seen from
the street. Keep this approximate location in mind
as you work from within the attic.
2. Mark a point halfway between rafters.
3. Drill a guide hole through the roof at this point.
Figure 1
20-3/4"
8-1/2"
10-3/8"
20-1/2"
7-1/4"
1-1/4" Dia. Hole
11" Dia.
Hole
Guide
Hole
9-1/8"
4. From the outside, use the guide hole as a starting
point and mark the rectangular cutout and
remove
only the shingles in this area. See Figure 1.
5. Mark an 11" diameter circle centered on the guide
hole and mark the center of the 1-1/4" diameter
electrical wiring hole. See Figure 1.
1. Choose a position on the outside wall. Make sure
that no wall studs, pipes or wires run through the
opening area.
2. Drill a guide hole at the center of the opening area.
Figure 3
10-3/4"
12-7/8"
29-1/2"
1-1/4" Dia. Hole
25"
11" Dia.
Hole
Guide
Hole
9-1/8"
7-1/4"
3. Mark a 25" by 29-1/2" rectangle on wall located
from guide hole as shown in Figure 3.
4.
Cut a rectangular hole in the siding only. Do not cut
the sheathing. Nail down all siding ends.
5. Mark an 11" diameter circle centered on the guide
hole and mark the center of the 1-1/4" diameter
electrical wiring hole.
6. Cut the 11" diameter hole in the sheathing and drill
the 1-1/4" hole as marked.
6. Cut out the roof board(s) along the 11" diameter
circle and drill a 1-1/4" hole as marked.
Figure 2
29-1/2"
2"
7"
25"
2"
7. For flat roof installations, build a curb that will
mount the blower at a minimum pitch of 2/12. See
Figure 2. Discharge end of the blower should be
pointed away from prevailing winds.
PREPARE THE BLOWER
ALL INSTALLATIONS
1. Unpack the blower assembly.
2. Remove the cover and screws.
3. Remove and discard cardboard from blower wheel.
4. Remove the wiring box cover and screws.
5. Attach an appropriate U.L. approved cable connector in the hole at the rear of the wiring box.
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