Broan BU324WW, BU330WW, BU330WH, BU324SS, BU330SS INSTALLATION INSTRUCTIONS AND OPERATION MANUAL

BU3 SERIES

4-WAY CONVERTIBLE

RANGE HOOD

READ AND SAVE THESE INSTRUCTIONS

WWW.BROAN.CA

INTENDED FOR DOMESTIC COOKING ONLY.

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 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 qualified

personnel 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 guidelines 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. Do not use this unit with any additional solid-state speed control device.

8. To reduce the risk of fire, use only metal ductwork.

9. This unit must be grounded.

10. When applicable local regulations comprise more restrictive installation

and/or certification requirements, the aforementioned requirements prevail on those of this document and the installer agrees to conform to these at his own expense.

TO REDUCE THE RISK OF A RANGE TOP GREASE FIRE:

a) Never leave surface units unattended at high settings. Boilovers cause

smoking and greasy spillovers that may ignite. Heat oils slowly on low or medium settings.

b) Always turn range hood ON when cooking at high heat or when

flambeing food (i.e.: Crêpes Suzette, Cherries Jubilee, Peppercorn Beef Flambé).

c) Clean ventilating fans frequently. Grease should not be allowed to

accumulate on fan, filters or in exhaust ducts.

d) Use proper pan size. Always use cookware appropriate for the size of

the surface element.

INSTALLER: Leave this manual to the homeowner.

HOMEOWNER: Use and care information on page 5.

WARNING

TO REDUCE THE RISK OF INJURY TO PERSONS IN THE EVENT OF A RANGE TOP GREASE FIRE, OBSERVE THE FOLLOWING*:

1. SMOTHER FLAMES with a close-fitting lid, cookie sheet or metal tray,

then turn off the burner. BE CAREFUL TO PREVENT BURNS. IF THE FLAMES DO NOT GO OUT IMMEDIATELY, EVACUATE AND CALL THE FIRE DEPARTMENT.

2. NEVER PICK UP A FLAMING PAN — You may be burned.

3. DO NOT USE WATER, including wet dishcloths or towels — This could

cause a violent steam explosion.

4. Use an extinguisher ONLY if: A. You own a Class ABC extinguisher and you know how to operate it. B. The fire is small and contained in the area where it started. C. The fire department has been called. D. You can fight the fire with your back to an exit. * Based on “Kitchen Fire Safety Tips” published by NFPA.

CAUTION

1. For indoor use only.

2. For general ventilating use only. Do not use to exhaust hazardous or

explosive materials and vapors.

3. To avoid motor bearing damage and noisy and/or unbalanced impellers,

keep drywall spray, construction dust, etc. off power unit.

4. Your hood motor has a thermal overload which will automatically shut

off the motor if it becomes overheated. The motor will restart when it cools down. If the motor continues to shut off and restart, have the hood serviced.

5. For best capture of cooking impurities, the bottom of the hood should

be at a minimum of 18” and at a maximum of 24” above the cooking surface.

6. To reduce the risk of fire and to properly exhaust air, be sure to duct

air outside — Donot exhaust air into spaces within walls or ceiling or into attics, crawl space or garage.

7. When installing, servicing or cleaning the unit, it is recommended to wear

safety glasses and gloves.

8. Please read specification label on product for further information and

requirements.

99045995A

For Non-ducted (Duct free) Installation:

IMPORTANT

a) Purchase non-ducted filter separately, model 41F. b) Remove and discard damper/duct connector and grille cover

(See Step 3 in “Preparing the range Hood,” on page 3). c) Follow all steps except steps inside dotted lines.

For Ducted Installation: Follow all steps, including steps inside dotted lines.

FIG. 1A

WALL CAP 639 OR 649

FIG. 1B

WALL CAP 639 OR 649

TOOLS AND MATERIAL REQUIRED

TOOLS

 Drill  1¼" Spade bit  Pliers

For ducted installations ONLY:

 Flat blade and

Phillips screwdriver

 Tape measure or ruler

and pencil

 Saber saw  Metal snips

MATERIALS

 Electrical wiring and supplies of type to comply with local codes

 Roof or wall cap

 Duct and metal foil duct tape

 Roof cement or caulk

For installation on kitchen cabinets with recess bottoms only:

 Two 1" x 2" x 12" (approximate length) wood strips (purchase locally)  Four 1¼" long flat heat wood screws (purchase locally) to fasten

strips to cabinet bottom

PLANNING DUCTWORK INSTALLATION

Begin planning ductwork by deciding where the duct will run between the range hood and the outside. For best performance, use the shortest possible duct run and a minimum number of elbows. There are several choices shown - FIGS. 1A - 1F.

If needed, a 3¼” x 10” rectangular ducting range hood can be converted to a round duct by means of a transition.

FIG. 1A. Ducting directly through the wall (for range hoods mounted on an exterior wall). Shown are two ways to duct through an outside wall. If a wall cap is used directly off the back of the hood, special care must be taken to make sure that the damper in the damper/duct connector on the hood and damper in the wall cap do not interfere with each other when the hood is operating. This could result in either inadequate air delivery or back drafts. If this condition does exist, remove the hood damper flap. Sometimes when using a wall cap it is easier to duct vertically and then use an elbow as shown in FIG. 1B.

FIG. 1C. Ducting straight up through the roof using 3¼” x 10” rectangular duct. (For single story installations.)

FIG. 1D. Ducting between the ceiling joists (for multi-story installations) or through the soffit space above the cabinets (where the soffit connects to an outside wall).

FIG. 1E. Straight up through the roof using 3¼” x 10” to 6” round duct transition and 6” round duct (for single-story installations).

FIG. 1F. Straight up through the roof using 7” round duct (for single-story installations, 7” round adapter plate not included, part number SR680508).

FIG. 1C

FIG. 1D

FIG. 1E

FIG. 1F

7” ROUND DUCT 407

ADJUSTABLE ELBOW 419

6” ROUND DUCT 406

ROOF CAP 634 OR 644

3¼” X 10” TO 6” ROUND

TRANSITION 411

DUCT

3¼” X 10” DUCT 401

ROOF CAP 634 OR 644

3¼” X 10” DUCT 401

WALL CAP 641

3¼” X 10” TO 6” ROUND

TRANSITION 411

DUCT

6” ROUND DUCT 406

ROOF CAP 634 OR 644

OPTIONAL DAMPER MODEL BP87

7” ROUND DUCT PLATE SR680508

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PREPARING THE RANGE HOOD

1. Unpack hood and check contents. You should have: 1 - Aluminum filter 1 - 3¼” x 10” Damper/duct connector

(mounted inside of hood for shipping only) (save the screws)

2. Remove wiring box cover. Under cover find the parts bag containing loose hardware.

For non-ducted installation only

3. For n ont of hood. (FIG. 3)

NOTE

The grille on front of hood must be open and visible for hood

to function in non-ducted mode.

4. Remove either top or rear electrical knockout depending upon whether wiring will enter hood from wall or cabinet. (FIG. 4)

FIG. 2

ALUMINUM FILTER

FIG. 3

KEYHOLE SLOTS (4)

WIRING BOX COVER

DAMPER/DUCT CONNECTOR

DUCTED INSTALLATION ONLY

NOTE

The grille cover must be installed as shown in FIG. 3

to function in ducted mode.

5. Remove appropriate duct knockout on hood by inserting screwdriver into edge of knockout and breaking tabs holding knockout to hood. You may have to tap screwdriver with hammer to break tabs. Peel knockout back with pliers. (FIG. 5)

6. Fit damper/duct connector over opening and secure in place with black sheet metal screws. (FIG. 6)

Hinge pins and damper/duct connector should be toward top of hood for ducting through wall or toward back of hood for ducting through cabinet above hood. Seal joint between damper/duct connector and hood with duct tape.

7. 7” round ducted discharge only: Purchase separately the 7” round duct plate (part no. SR680508). For best performance, line up the 7” round duct plate with the 7” round opening on hood. Mount duct plate to hood with 2 screws included with duct plate and 2 screws from 3¼” x 10” damper (1 screw per side). Install a 7” round damper (purchase separately). Damper flap must open freely in direction of air flow (away from range hood).

PREPARING THE INSTALLATION LOCATION

NOTE

MOUNT HOOD SO THAT BOTTOM OF HOOD IS 18”-24” ABOVE

COOKING SURFACE. TOP FRONT EDGE OF HOOD SHOULD BE

FLUSH WITH FRONT OF CABINET FRAME.

IF DISTANCE BETWEEN WALL AND FRONT OF CABINET FRAME

IS MORE THAN 12” THERE WILL BE A SPACE BETWEEN BACK OF

HOOD AND WALL. THIS IS NORMAL.

OMIT STEP 8 if range hood will be installed under cabinets with flush bottom.

8. (For installation on recessed bottom cabinets only.) Attach a wood filler strip at each side of recessed area under cabinet. (Use two 1” x 2” strips cut to length.) If recess is more than 1” use thicker strips. Attach strips with 1¼” screws about 3” from each end. See FIG. 7.

9. Measure and mark the following (FIGS. 7 & 8): a) Electrical line opening b) Duct opening

10. Drill four pilot holes in corners of marked duct opening as shown and cut opening with saber saw or keyhole saw.

11. Use 1¼” drill bit to drill opening for electrical connection in wall or cabinet.

12. Hold hood up against cabinet bottom and trace keyhole slots onto cabinet bottom or filler strips.

13. Screw the four supplied 7/8” wood screws for mounting the hood into the exact center of the narrow end of the keyhole slots marked underneath the cabinet. Allow 3/8” of the screws to project, so the hood can be fitted into place.

FIG. 4

FIG. 5

FIG. 6

FIG. 7

FIG. 8

HORIZONTAL DUCTING AND WIRING (Through wall)

1½"

CABINET FRONT

3/8"

3¼” x 10” DUCT

37/8"

/8"

CUT STRIPS TO FIT

DUCT OPENINGS

WIDTH OF

RANGE HOOD

3/4"

5¼"

7½"

5¼"5¼"

1/8"

CABINET BOTTOM

/8"

5¼"

/8"

CENTER LINE

ELECTRICAL WIRING OPENING

CABINET FRONT

CABINET BOTTOM

8" DIA.

ACCESS HOLE

WOOD SHIMS

1½"

(recessed-bottom

cabinets only)

7” ROUND DUCT

7½"

ELECTRICAL

ACCESS HOLE

(in cabinet bottom)

VERTICAL DUCTING AND WIRING (Through cabinet bottom)

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BACK WALL

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