Bosch DUH User Manual

Bosch DUH Models

ventilation installation

manual

APPROVED FOR RESIDENTIAL APPLIANCES

FOR RESIDENTIAL USE ONLY

READ AND SAVE THESE INSTRUCTIONS

PLEASE READ ENTIRE INSTRUCTIONS BEFORE PROCEEDING. INSTALLATION MUST COMPLY WITH ALL LOCAL CODES. IMPORTANT: Save these Instructions for the Local Electrical Inspector’s use. INSTALLER: Please leave these Instructions with this unit for the owner. OWNER: Please retain these instructions for future reference. Safety Warning: Turn off power circuit at service panel and lock out panel, before wiring this appliance. Requirement: 120 V AC, 60 Hz. 15 or 20 A Branch Circuit

IMPORTANT SAFETY INSTRUCTIONS

Read All Instructions Before Using the Appliance.

READ AND SAVE THESE INSTRUCTIONS

WARNING

TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS, OBSERVE THE FOLLOWING: A. Use this unit only in the manner intended by the

manufacturer. If you have questions, contact the manufacturer.

B. Before servicing or cleaning the unit, switch

power off at service panel and lock service panel 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.

C. Installation Work and Electrical Wiring Must Be

Done By Qualified Person(s) In Accordance With All Applicable Codes & Standards, Including Fire-rated Construction.

D. Sufficient air is needed for proper combustion

and exhausting of gases through the flue (chimney) of fuel burning equipment to prevent back- drafting. Follow the heating equipment manufacturers guideline and safety standards such as those published by the National Fire Protection Association (NFPA), the American Society for Heating, Refrigeration and Air Conditioning Engineers (ASHRAE), and the local code authorities.

E. When cutting or drilling into wall or ceiling, do

not damage electrical wiring and other hidden utilities.

F. Ducted systems must always be vented to the

outdoors.

WARNING

CAUTION FOR GENERAL VENTILATING USE ONLY. NOT USE TO EXHAUST HAZARDOUS OR EXPLOSIVE MATERIALS OR VAPORS.

CAUTION

To reduce risk of fire and to properly exhaust air, be sure to duct air outside - do not vent exhaust air into spaces within walls, ceilings, attics, crawl spaces, or garages.

WARNING TO REDUCE THE RISK OF FIRE, USE ONLY METAL DUCT WORK.

Install this hood in accordance with all requirements specified.

WARNING

To Reduce The Risk Of Fire Or Electric Shock, Do Not Use This Hood With Any External Solid State Speed Control Device.

OPERATION a. Always leave safety grills and filters in place.

Without these components, operating blowers could catch onto hair, fingers and loose clothing.

The manufacturer declines all responsibility in the event of failure to observe the instructions given here for installation, maintenance and suitable use of the product. The manufacturer further declines all responsibility for injury due to negligence and the warranty of the unit automatically expires due to improper maintenance.

This unit is manufactured for indoor use only. Do not use this unit outdoors.

IMPORTANT SAFETY INSTRUCTIONS

Read All Instructions Before Using the Appliance.

READ AND SAVE THESE INSTRUCTIONS

Electrical requirements IMPORTANT

Observe all governing codes and ordinances. It is the customer’s responsibility:

To contact a qualified electrical installer. To assure that the electrical installation is adequate and in conformance with National Electrical Code, ANSI/NFPA 70 — latest edition*, or CSA Standards C22.1-94, Canadian Electrical Code, Part 1 and C22.2 No.0-M91 - latest edition** and all local codes and ordinances.

If codes permit and a separate ground wire is used, it is recommended that a qualified electrician determine that the ground path is adequate.

Do not ground to a gas pipe. Check with a qualified electrician if you are not sure range hood is properly grounded. Do not have a fuse in the neutral or ground circuit.

IMPORTANT

Save Installation Instructions for electrical inspector’s use.

The range hood must be connected with copper wire only.

The range hood should be connected directly to the fused disconnect (or circuit breaker) box through metal electrical conduit.

Wire sizes must conform to the requirements of the National Electrical Code ANSI/NFPA 70 — latest edition*, or CSA Standards C22.1-94, Canadian Electrical Code Part 1 and C22.2 No. 0-M91 - latest edition** and all local codes and ordinances.

A U.L.- or C.S.A.-listed conduit connector must be provided at each end of the power supply conduit (at the range hood and at the junction box).

Copies of the standards listed may be obtained from: * National Fire Protection Association Batterymarch Park

Quincy, Massachusetts 02269 ** CSA International 8501 East Pleasant Valley Road

Cleveland, Ohio 44131-5575

Parts Included with your Hood

• Hood Canopy Assembly with Round Metal Transition installed.

• Rectangular Metal Transition with Back draft dampers.

• Care & Use /Installation Instructions

• 2 Filters

• Fitting Screws.

Parts Not Included with your Hood

• Duct Tape

• 1/2" Conduit

• Wire Nuts

• Round or Rectangular Duct.

• Charcoal filters

• Round back draft damper

• Wiring clamp

• Models DUH30252UC and DUH36252UCOnly:

CAUTION! Lamps are not supplied, use

ONLY 120 Volt, 50 Watt (maximum) 50° halogen light made or a GU10 base.

Tools required

Flat blade and Phillips screwdrivers Pencil Metal snips (in some applications) Electric drill Saw (saber or keyhole) Duct tape Pliers Level Caulking Tape measure 1/4.pivoting hex socket Flashlight Wire stripper 1/4. Nutdriver Small hammer

INSTALLING THE HOOD

• For the most efficient air flow exhaust, use a

straight run or as few elbows as possible.

CAUTION: Vent unit to outside of

building, only.

• One person is necessary for installation. On avarage 2 hours are necessary to complete installation (without considering cut to be done on wall and or on cabinet, installation of ducts , conduit and electrical connections to the mains).

16 installation steps are required.

• The hood is fitted with Screws and Drywall

Anchors suitable for most surfaces, consult a Qualified Installer, check if they perfectly fit with your cabinet/wall.

• Do not use flex ducting.

• COLD WEATHER installations should have an

additional backdraft damper installed to minimize backward cold air flow and a nonmetallic thermal break to minimize

conduction of outside temperatures as part of the ductwork. The damper should be on the cold air side of the thermal break. The break should be as close as possible to where the ducting enters the heated portion of the house.

• Remote blowers require a five wire installation.

• Make up air: Local building codes may require

the use of Make-Up Air Systems when using Ducted Ventilation Systems greater than specified CFM of air movement. The specified CFM varies from locale to locale. Consult your HVAC professional for specific requirements in your area.

• Typical installation

Min installation height from the countertop to the bottom of the hood is 24” to 30“.These hoods are not recommended to be used over indoor grills.

1. Choose vent options

Vent Exhaust Option

The hood is designed for vertical or horizontal discharge or can be installed in a recirculating ductless version:

Vertical discharge:

Use a rectangular duct 3 1/4” x 10”.....

Horizontal discharge:

Use a rectangular duct 3 1/4” x 10”

....or use a round 7” duct

Examples of possible ducting

Recirculating (non vented ductless)

Horizontal dischargeVertical dischargeRecirculating

TOTAL (of both columns)=

TABLE 2. DUCTWORK INSTALLATION GUIDELINES

For safety reasons, ducting should vent directly outdoors (not into an attic, underneath the house, into the garage or into any enclosed space). Keep duct runs as short and straight as possible. Duct fittings (elbows and transitions) reduce air flow efficiency. Back to back elbows and „S“ turns give very poor delivery and are not recommended. A short straight length of duct at the inlet of the remote blower gives the best delivery. Transition to duct from the integral blower or remote duct transition as close to the downdraft as is pos-sible.

In order of preference, use 1st. 10" round duct 2nd. 8" round duct 3rd. 3-1/4" x 14" duct 4th. 7" round duct 5th. 3-1/4" x l0" duct

6th. 6" round duct The use of flexible metal round duct should only be used when no other duct fitting exists. Limit use to short lengths and do not crush when making corners.

After having choosen the vent option, proceed as follows:

2. Remove the round transition from its seat by

unscrewing the its fixing screws (save the screws).

7" Round Transition

4. Remove the junction box cover.

J-Box Cover

Remove either the top or the back wiring knockout according the preference and install an approved wiring clamp

wiring clamp

5. Remove the duct knockouts using a flat blade

screwdriver

and a small hammer. Use the screwdriver by knocking out the pannel in similar fashion to a scalpel.

Take care of sharp edges.

Attention!

If is intended to use the hood in recirculating version do not remove any duct knockouts and order the necessary charcoal filter from your supplier.

Round vertical

discharge

Rectangular vertical discharge

3. Remove the grease filters.

Rectangular horizontal

discharge

R1= Remove rectangular duct knockout only.

R2 = Remove semicircular and rectangular duct knockouts.

6. For rectangular ducted discharge installations only (otherwise skip to next step)

Attach exhaust adaptor/damper over knockout

opening with two exhaust adaptor screws. Make sure damper pivot is nearest to top/back edge of hood. Remove tape from damper flap.

Pivot

Top/back edge

Exhaust transition/damper

NOTE: The exhaust adaptor/damper can be installed up to 1 inch on either side of the hood center to accommodate off-center ductwork. In extreme off-center installations, one end of the duct connector may need to be trimmed to clear the electrical cable clamp.

7. For round ducted discharge installations only

Re-install the round transition with its screws.

7" Round Transition

NOTE: The round transition can be installed up to 1 inch on either side of the hood center to accommodate off-center ductwork. In extreme offcenter installations, one end of the duct connector may need to be trimmed to clear the electrical cable clamp.

8. Mark holes

Select the vent option that your installation will require and proceed to that section:

Outside top exhaust

(Vertical duct– 3 1/4”x 10” Rectangular) Use the diagram or the hood as a template and mark the locations on the cabinet for ductwork, electrical wiring and keyhole screw slots.

Outside top exhaust

(Vertical duct–7” Round) Use the diagram or the hood as a template and mark the locations on the cabinet for ductwork, electrical wiring and keyhole screw slots.

Hood mounting screws (4)

13 15/16" (30" Hood) 16 15/16" (36" Hood)

Cabinet front

Cabinet Bottom

1 1/4"

Wood shims (recessed bottom cabinets only)

Hood mounting screws (4)

13 15/16" (30" Hood) 16 15/16" (36" Hood)

Cabinet front

Cabinet Bottom

Access hole for 7" round duct

Wood shims (recessed bottom cabinets only)

5 1/4"

Vertical duct access hole

8" DIA. HOLE

13 15/16" (30" Hood) 16 15/16" (36" Hood)

12 9/16"

5 1/4"

Electrical access hole

Center line

Electrical access hole

(in cabinet bottom)

13 15/16" (30" Hood) 16 15/16" (36" Hood)

12 1/2"

Electrical access hole

(in cabinet bottom)

2 1/4"

10 1/2"

1 1/4"

10 1/2"

1 1/2"

Outside rear exhaust

(Horizontal duct– 3 1/4”x 10” Rectangular)

• Use the diagram or the hood as a template and mark the locations on the cabinet for ductwork, electrical wiring and keyhole screw slots.

Recirculating

Use the hood as a template and mark the locations on the cabinet for the electrical wiring and keyhole screw slots. Since the hood is to be recirculated (not to be vented outside), do not cut out any vent openings in the wall or cabinet bottom.

Wood shims (recessed bottom cabinets only)

3 3/4" Cabinet bottom

13 15/16" (30" Hood) 16 15/16" (36" Hood)

Hood mounting screws (4)

Cabinet front

Horizontal duct access hole

5 1/4" 5 1/4"

Center line

12 7/16"

13 15/16" (30" Hood) 16 15/16" (36" Hood)

1/8"

7/16"

Electrical access hole (in wall)

+ 22 hidden pages