Thermador HMWB36FS/01, HMWB30FS/01 Installation Guide

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VENTILATION

INSTALLATION MANUAL

MODELS: HMWB30

HMWB36

Thermedor' AoA=__°o3_°o+

LI3GJA Ed. 08/08

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

G

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. Ifyou 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.

CAUTION
FOR GENERAL VENTILATING USE ONLY. DO
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 a II responsibility in the
event of failure to observe the instructions given

here for installation, maintenance and suitable use
ofthe product. The manufacturer further declines

all responsibility for injury due to negligence and
the warranty of the unitautomatically 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 thatthe electrical installation is adequate

and in conformance with National Electrical Code,
ANSI/NFPA 70 -- latest edition s-,or CSA Standards
C22.1-94, Canadian Electrical Code, Part land

C22.2 No.0-M91 - latest edition_-_-and all local
codes and ordinances.

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

Do notground 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 s-,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. - listedconduit 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

4

Parts In cluded with your Hood

• Hood Canopy Assembly with blower already
installed

• Grease filters

• Drip tray for each filter.

• Drip trays holding brakers + plastic wahers and
knobs

• 1Transition withbackdraftdamper

• Use & Care / Installation Instructions

• Fittings bag with:
4 Washers

6 Drywall anchors
2 Hookswith regulating screws

6 ScrewsSX3S
4 Screws for transition

Op tion al accessory

Duct covers
Ductless recirculation kit available only for HMWB30,

HMWB.36 model.

Parts Not Included with your
Hood

• Duct Tape

• 1/2"Conduit

• Wire Nuts

• Round Duct.

• Wiring clamp

• A CAUTION! Lamps are not supplied, use
ONLY 120 Volt, S0 Watt (maximum) S0°

halogen light made o r a GU10 base,

suitable for usei nopen luminarie .

• 4 #10 pan head wood screws for installation on

a bottomofa cabinet

3 prong plug

Tools required

Flat blade and Phillips screwdrivers
Pencil and tape measure
Metal snips (in some applications)

Electric drill
Saw (saber or keyhole)

Pliers
Level

Caulking

Flashlight

Wire stripper

Safety glasses

Gloves

Step ladder

INSTALLING THE HOOD

• For the most efficient air flow exhaust, use a
straight run or as few elbows as possible.

il_ CAUTION: Vent unittooutsideof

building, only.

• Two peopleare necessary for installation.
On average 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).

installation steps:

11 installation steps are required for both

installation methods
Wall mount installation steps or in a Iternative

Cabinet installation

• The hood is fittedwith 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.

• 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 location to location

Consult your HVAC professional for specific
requirements in your area.

Typical installation

The height from the countertop to the bottom of the hood is 30" to 36".
These hoods are not recommended to be used over indoor grills.

1. Choose vent options

The hood is designed to be used for vertical discharge as shown below.

Note: see also Fig. 1-2-3 for Cabinet preparation.

Install a 1/2" conduit from the service panel long enough to reach the hood
once it is installed. Power supply must be rated for 120 VAC, 60Hz. 15 or 20A.

Examples of possible ducting

Ceiling

*Deflector

Lamp

\

Hood

1

30" to 36"

Transition

Blower

*Charcoal filters

Filter

Round duct

Ceiling

Lam p

Hood

30" to 36"

1

Transition

Blower

Filter

* Charcoal filters

Optional accessory - Ductless recirculation kit

DUCT FITTINGS

Use this chart to compute maximum
permissable lengths for duct runs to

outdoors.

Note: Do not exceed maximum permissable

equivalent lengths!

Maximum recommended duct

length for these hoods: 150 feet

Flexible ducting:
If flexible metal ducting is used, all

the equivalent feet values in the table
should be doubled. The flexible

metal duct should be straight and

smooth and extended as much as

possible.

Do NOT use flexible plastic ducting.

Note: Any home ventilation system, such as a
ventilation hood, may interrupt the proper flow of
combustion air and exhaust required by fireplaces,
gas furnaces, gas water heaters and other naturally

vented systems. To minimize the chance of interruption
of such naturally vented systems, follow the heating

equipment manufacturer's guidelines and safety
standards such as those published by NFPA and ASHRAE.

*Hoods are supplied with a 10"

round transition. A locally
supplied transition is required

for other sizes.

Note: Outlet on top of hood is
8-1/8" x 8".

Q

©

10" round

to 8" roun d

Round,
straight

3-1/4" x 10"
3-1/4" x 12 "

straight

90° elbow

45° elbow

3-1/4" x 12" 15 ft.
3-1/4" x 10" 14 ft.

90° elbow

3-1/4" xlO" 8ft.
3-1/4" x12" 9ft.

45° elbow

3-1/4" x 10" 33 ft.
3-1/4" x 12" 36ft.

go° fiat elbow

10" round transition

to 3-1/4" x 10" or

3-1/4" x 12" 9ft.
3-1/4" x 10" or

3-1/4" x 12" to
10" round transition 6 ft.

10" round to 3-1/4" x 10" 16 ft.
3-1/4" x 12" transition 13 ft.

go° elbow

3-1/4" xlO" 9ft.
3-1/4"x12"t o10" round 8ft.

transiti on 90° elbow

Round

wall cap
with damper

3-1/4" x 10" 24 ft.
3-1/4" x 12" wall cap 26ft.

with damper

Sft.
1ft.

(per foot
length)

1ft.
(per foot

length)

8" Dia. 17 ft.

10" Dia. 24 ft .

8" Dia. 10 ft.

10" Dia. 14ft .

8" Dia. 32 ft.

10" Dia.41 ft.

Round
roof cap

8" Dia. 44 ft.

10" Di a. 56 ft.

TotalDuct Run

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 to remote duct transition as close as possible.

In order opreference, use:

1st. 10" round duct

2nd. 8round duct
3rd. 3-1/4" x 14" duct

4th. 7" round duct
5th. 3-1/4" x 10"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.

1. Prepare duct and conduit cut outs, see figures
1 and 2 as needed.

i

Mo0o3o,,36,,

it,8, 1-1,2"o,a..o,os

Bottom of

Cabinet or

Soffit

12"

Rear
Wall

11

10-112" " '

%÷ I I /_ C_<-_-1_7f/ Vertical conduit

CL

_Hood Width

Figure 1

2. Assembly of the 10" transition:
The transition supplied with the hood mounts to

the top.
Do not install transition until hood is

fixed on cabinet or wall.

a. Place the transition piece over the hood

outlet and secure with 4 screws provided.
(Figure3)

b. Wrap all joints (metal transition and hood)

with duct tape for an airtight seal.

c. Remove tape holding damper.

Hood outlet

Figure 2

Figure 3

Transition

23-1/8"

Screws (4)