Hestan KVC36 Guide d'installation

INDOOR COOKING

Vent Hood - Chimney

KVC

Installation, Use and Care Manual

IF THE INFORMATION IN THIS MANUAL IS NOT FOLLOWED

EXACTLY, A FIRE OR EXPLOSION MAY RESULT CAUSING

PROPERTY DAMAGE, PERSONAL INJURY, OR DEATH.

READ THESE INSTRUCTIONS CAREFULLY AND COMPLETELY BEFORE

INSTALLING OR USING YOUR APPLIANCE TO REDUCE THE RISK OF

FIRE, BURN HAZARD, OR OTHER INJURY. KEEP THIS MANUAL FOR

FUTURE REFERENCE.

SAFETY DEFINITIONS

THIS INDICATES THAT DEATH OR SERIOUS INJURY MAY OCCUR

AS A RESULT OF NOT OBSERVING THIS WARNING

THIS INDICATES THAT MINOR OR MODERATE INJURY MAY

OCCUR AS A RESULT OF NOT OBSERVING THIS WARNING.

THIS INDICATES THAT DAMAGE TO THE APPLIANCE OR

PROPERTY MAY OCCUR AS A RESULT OF NOT OBSERVING THIS

WARNING.

INSTALLER: LEAVE THIS MANUAL WITH THE OWNER OF THE APPLIANCE.

HOMEOWNER: RETAIN THIS MANUAL FOR FUTURE REFERENCE.

Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or

any other appliance.

Installation and service must be performed by a qualified installer or service agency.

DO NOT REPAIR, REPLACE OR REMOVE ANY PART OF THE APPLIANCE UNLESS

SPECIFICALLY RECOMMENDED IN THE MANUAL. IMPROPER INSTALLATION,

SERVICE OR MAINTENANCE CAN CAUSE INJURY OR PROPERTY DAMAGE. REFER

TO THIS MANUAL FOR GUIDANCE. ALL OTHER SERVICING SHOULD BE DONE BY

A HESTAN AUTHORIZED SERVICE TECHNICIAN.

Message from Hestan:

Hestan’s award-winning culinary innovations and purpose-built features reinvented

the restaurant kitchen and redefined culinary experience in some of America’s most

acclaimed restaurants. Hestan now takes this performance from the back of the

house and puts it front and center in yours. Thoughtfully designed and meticulously

built, Hestan will serve you beautifully for years to come.

Hestan is the only residential brand born from the dreams and demands of

professional chefs. From ranges to refrigeration, every detail is designed to deliver

the performance and reliability expected in a restaurant – now available for you.

We appreciate you choosing Hestan, and we promise to deliver the very best to you.

Welcome to Hestan

SAFETY PRECAUTIONS - BEFORE YOU BEGIN

ELECTRICAL SHOCK HAZARD

It is the responsibility of the user to have the appliance connected

by a licensed electrician in accordance with all applicable codes and

standards, including fire-related construction. See step 16 - “WIRING

CONNECTION:” on page15 for details.

ELECTRICAL SUPPLY AND GROUNDING

• This appliance must be grounded. See step 16 - “WIRING CONNECTION:” on page15 for

instructions.

• This appliance must be connected to 120 VAC Single Phase, 60 Hz, with a dedicated 20 amp

circuit.

• OWNER: Have the installer show you where the electric circuit breaker is located so you know

how to shut off the power to this appliance.

Suitable for use in covered outdoor applications when installed in a GFCI protected branch circuit.

TABLE OF CONTENTS

1 SAFETY PRECAUTIONS - BEFORE YOU BEGIN

4 MODEL NUMBERS

4 RATING LABEL

5 REGULATORY / CODE REQUIREMENTS

5 USING THE VENTILATION SYSTEM

6 CLEANING AND MAINTENANCE

9 TROUBLESHOOTING

10 DUCTING DO’S AND DON’TS

11 INSTALLATION

17 VENT ACCESSORIES

18 DUCT COVERS

19 PARTS / SERVICE

19 LIMITED WARRANTY

When properly cared for, your Hestan ventilation system will provide safe, reliable service for many

years. When using this ventilation system, basic safety practices must be followed as described in

the following pages.

IMPORTANT: Save these instructions for the local Utility Inspector’s use.

INSTALLER: Please leave these Installation Instructions with the owner.

OWNER: Please read these Instructions and save them for future reference.

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GENERAL SAFETY PRECAUTIONS

When properly cared for, your new Hestan ventilation hood has been designed to be a safe, reliable

ventilation system. Read all instructions carefully before using this ventilation system. When using

kitchen appliances, basic safety precautions must be followed.

TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO

PERSONS, OBSERVE THE FOLLOWING:

a) Use this ventilation system only as intended by the manufacturer. If you have any questions,

contact the manufacturer.

b) 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.

FOR GENERAL VENTILATING USE ONLY. DO NOT USE TO

EXHAUST HAZARDOUS OR EXPLOSIVE MATERIALS AND VAPORS.

TO REDUCE THE RISK OF A RANGE TOP GREASE FIRE:

a) Never leave burners or 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 hood ON when cooking at high heat or when flambéing food (i.e. Crepes Suzette,

Cherries Jubilee, Peppercorn Beef Flambé).

c) Clean ventilating fans frequently. Grease should not be allowed to accumulate on fan or filter.

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

element.

TO REDUCE THE RISK OF INJURY TO PERSONS, IN THE EVENT OF

A RANGE TOP GREASE FIRE, OBSERVE THE FOLLOWING *:

a) 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.

b) NEVER PICK UP A FLAMING PAN - You may be burned.

c) DO NOT USE WATER, including wet dish cloths or towels - a violent steam explosion will

result.

d) Use an extinguisher ONLY IF:

1. You have a Class ABC or Class K fire extinguisher and you already know how to operate it.

2. The fire is small and contained in the area where it started.

3. The fire department is being called.

4. You can fight the fire with your back to an exit.

* Based on “Kitchen Fire Safety Tips” published by NFPA.

SAFETY PRECAUTIONS - BEFORE YOU BEGIN

(CONT.)

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BURN HAZARD

This ventilation system is intended for use with ranges or cooktops, which can get very hot during

operation. Observe the warnings and cautions for the cooking appliance.

This ventilation system should be serviced only by a Hestan authorized service technician. Contact

the nearest authorized service center for examination, repair or adjustment.

Do not repair or replace any part of the system unless specifically recommended. Refer service to

an authorized servicer.

Do not operate this ventilation system if it is not working properly or if it has been damaged, until

an authorized servicer has examined it.

Install or locate this ventilation system only in accordance with the Installation section of this

manual. Do not cover or block any openings on this ventilation system.

It is highly recommended that a suitable kitchen fire extinguisher (Class ABC or K) be readily

available and highly visible next to any cooking appliance.

SAFETY DURING CLEANING

Clean only ventilation system parts listed in this manual, in the manner specified in this manual.

Note: the “ventilating fans” and “filter” in the previous warnings refer to the blower wheels, blower

housing(s), and blower shield(s). See “CLEANING” on page7 for parts indentification and

cleaning instructions.

THIS MANUAL SHOULD REMAIN WITH THE HOMEOWNER FOR FUTURE REFERENCE.

SAFETY PRECAUTIONS - BEFORE YOU BEGIN

(CONT.)

3

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(serial number)

(model number)

RATING LABEL

The rating label contains important information about your Hestan appliance such as the model and

serial number, electrical rating and the minimum installation clearances.

The rating label is located on the blower housing.

If service is necessary, contact Hestan Customer Care

with the model and serial number information shown

on the label.

MODEL NUMBERS

MODEL NO. DESCRIPTION BLOWER PACKAGE

KVC 30

30” Chimney-style 600 cfm Kitchen Ventilation System WM2L Dual

KVC 36

36” Chimney-style 600 cfm Kitchen Ventilation System WM2L Dual

KVC 42

42” Chimney-style 900 cfm Kitchen Ventilation System WM2L Dual + WM1L Single

KVC 48

48” Chimney-style 900 cfm Kitchen Ventilation System WM2L Dual + WM1L Single

KVC 54

54” Chimney-style 1200 cfm Kitchen Ventilation System Two WM2L Duals

POWER AND FLOW RATINGS

Blower

Package

Amps

CFM

[email protected]”*

Equivalent

CFM **

CFM

[email protected]”*

CFM

[email protected]”*

CFM

[email protected]”*

Minimum

Round Duct

Size

Sones

***

WM2L Dual 2.9 600 900 531 480 430 8” (50 in.

2

) 6.5

WM2L Dual +

WM1L Single

4.4 900 1350 804 725 655 AKVT6810:

10” (79 in.

2

)

6.3

Two WM2L

Duals

5.8 1200 1800 1062 960 860 AKVT8812:

12” (113 in.

2

)

6.6

All units 115 VAC 60 Hz 1550 RPM

* Static Pressure in inches water column.

** When comparing the Hestan system with blower units made by other manufacturers, use the “Equivalent CFM”.

*** Ratings in accordance with the Standard Test Code by the Energy Systems Laboratory of the Texas Engineering

Experiment Station.

Typical rating label

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Rating label location

REGULATORY / CODE REQUIREMENTS

Installation of this ventilation system must be made in accordance with local codes. In the absence

of local codes, this unit should be installed in accordance with the National Electrical Code and

local codes.

This appliance must be electrically grounded in accordance with local codes or in the absence of

local codes with the National Electrical Code

ANSI/NFPA 70

, or Canadian Electrical code

CSA

C22.1

.

USING THE VENTILATION SYSTEM

FEATURES OF THE VENTILATION SYSTEM

Speed controls are provided for each blower assembly. Two-blower systems will have one speed

control knob, while three- or four-blower systems will have two speed control knobs.

A control knob is provided for lighting intensity.

The controls layout will be similar to that shown below.

USING THE HOOD

The user can start with the a hood on the lowest setting, and then increase speed and/or turn

on additional blowers as required. Using the hood at high settings may increase heating or air

conditioning requirements and costs for the house.

BLOWER CONTROL KNOB

To operate the blower(s), rotate the knob through the blower speed settings by turning it clockwise

(facing the knob).

Rotate the knob counter-clockwise to reduce the blower speed.

LIGHT CONTROL KNOB

To operate the lights, rotate the knob through the light intensity settings by turning it clockwise

(facing the knob). Rotate the knob counter-clockwise to dim the lights or turn them off.

1

2

4

3

2

Controls for two blowers

Controls for three and four blowers

Item Function

1

Blower control

2

Light control

3

Blower control

blowers 1 & 2

4

Blower control,

blower 3 or

blowers 3 & 4

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CLEANING AND MAINTENANCE

CLEANING THE VENTILATION SYSTEM

Cleaning requirements depend completely on usage and environment. The more high-heat and/or

greasy cooking, the more often the hood and blower will need cleaning.

The grease tray and blower aren’t visible from the outside, so they must be removed for inspection.

After you’ve inspected the tray a few times over the course of six months or a year, you’ll be able to

set a cleaning schedule according to your usage pattern.

HOOD CANOPY

Wipe down the interior and exterior of the hood as needed with a soft cloth and warm soapy

water (liquid dish detergent is acceptable). Do not use acids, abrasives, strong detergents, solvents,

or scouring pads. Stainless steel should be treated with a quality stainless steel cleaner such as

Stainless Steel Magic®. Follow all label instructions. Do not polish across the grain or in circles.

BLOWER HOUSING AND SHIELD

To reduce the risk of personal injury, be sure the power is turned off in

the hood before removing the shield(s) and blower housing(s).

The blower captures grease by-products in the blower housing(s) and blower shield(s). The blower

shields require more frequent cleaning than the blower housing but cooking usage determines how

often each item will need to be cleaned.

Item # Description

1

Blower housing with damper(s)

2

Blower shield

BLOWER SHIELD REMOVAL

The blower shields are easily removed

for cleaning by pulling the blower shield(s) toward the front of the hood.

Be careful to keep the tray level if the hood has been recently used and the

grease might still be warm.

Inspect and clean the shield. (Details follow)

BLOWER HOUSING REMOVAL

To remove the blower housing:

1. Unsnap two suitcase latches, one on each side of the housing.

2. Support the housing and pull it away from the blower base.

3. While pulling it back, gently “tip” it downward to clear the blower wheel(s).

1

2

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CLEANING

Clean the shield(s) and/or blower housing(s) in a sink of warm soapy water (liquid dish detergent)

and let soak for a few minutes. Wash with a sponge or dishcloth, rinse and let drain before

reinstalling. Alternatively, the blower housing(s) and blower shield(s) may be placed into a

dishwasher.

Item # Description

1

Motor housing

2

Wheel

3

Blower housing with damper(s)

4

Blower shield

To reduce the risk of personal injury, be sure the power is turned off in

the hood before removing the shield(s) and blower housing(s).

Regular cleaning of the blower housing should prevent grease accumulation on the blower wheel.

If grease build-up should occur, the blower wheel may easily be cleaned in place using a soft bristle

toothbrush and a common degreaser such as Formula 409®.

Take care not to move or lose the metal balancing clips that may be affixed to

the wheel.

Item # Description

1

Balancing clip

2

Blower wheel

2

1

4

3

1

2

CLEANING AND MAINTENANCE

(CONT.)

7

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CLEANING AND MAINTENANCE

(CONT.)

BLOWER WHEEL REMOVAL

For instances where the blower wheel must be removed, follow the instructions below.

• Removing the blower wheel requires a 1/8” hex wrench. This may be obtained from your local

hardware store or tool supply.

The wheel is retained by a set screw on the side of the hub of the wheel that tightens up against a

“flat” spot on the motor shaft. (See illustration on previous page.)

1. Locate the set screw on the side of the hub of the wheel

2. Insert wrench through the blades of the blower wheel and into the set screw.

3. Loosen the set screw 1/2 turn counterclockwise.

If the wheel is difficult to remove, the area where the motor shaft makes contact with the

blower wheel hub may need to be sprayed with a common penetrating oil such as WD-40

®

.

After allowing the penetrating oil to soak for a few minutes, push the blower wheel forward

slightly, then gently pull the blower wheel off the motor shaft.

• Use caution to avoid bending or distorting the blower wheel and take care not to move or lose

the metal balancing clips that may be affixed to the wheel.

A soft bristle toothbrush with warm soapy water may be used to clean the blades, or soak the

blower wheel in warm soapy water.

BLOWER WHEEL INSTALLATION

When reinstalling the wheel onto the motor shaft, make sure the set screw makes direct contact

with the “flat spot” on the motor shaft.

1. Slide the blower wheel onto the motor shaft as far as it will go, making sure the back of the

blower wheel does not touch the motor mount screws protruding from the motor.

• If the motor is too far back, it will rub the motor mount screws, and if it is too far forward, it

will rub the inside of the blower housing.

2. Adjust the blower wheel slightly to find the correct front-to-rear location.

3. Tighten the set screw (clockwise) to lock the blower wheel in the correct position.

For hoods that have more than one blower wheel, make sure that white

blower wheels are matched up with white motor rings, and black blower

wheels are matched up with black motor rings.

The hood will not perform properly if blower wheels and motors are mismatched.

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TROUBLESHOOTING

If the hood does not perform satisfactorily, check the following:

• Do the blowers run?

• Are the blower wheels installed on the correct motors? (black wheel on black motor, white

wheel on white motor)

• Are the motor and wheel assemblies installed in the correct locations?

• Check the damper doors in blower housing(s) - do they move/open freely?

• Check the dampers/vents to outside - do they open freely, with no obstructions?

• Check for damaged or obstructed ductwork.

MOTOR REPLACEMENT

To reduce the risk of personal injury, turn off power to the hood at the

breaker or the circuit disconnect before attempting to remove the

blower motor.

MOTOR IDENTIFICATION AND POSITIONING

Motors are color-coded; black and white motors have different rotations and must be installed in

the correct positions.

• Housings with a single blower use a white blower and wheel.

• Housings with two blowers use a white blower on the right and black on the left.

Make sure you have the correct motor in each housing position.

• If the replacement blower motor includes a blower wheel, then you can remove the motor and

wheel together. If you will re-use your existing wheel, then you may wish to remove the wheel

before removing the motor.

1. Remove the shield and blower housing as described in

“BLOWER WHEEL REMOVAL” on page8.

2. Use a ¼” nut driver to remove the three motor mount

screws that attach the motor to the hood.

3. Gently pull the motor forward and down.

4. Disconnect the wiring harness, remove the old motor.

• To avoid damage to the blower wheel, you may wish to

install the motor and then install the wheel onto the motor.

5. Lift the new motor so you can connect the wiring

harness. Be sure to fully engage the electrical

connections and tighten the motor mount screws.

6. Check the blower wheel clearance and adjust

as needed, as described in “BLOWER WHEEL

INSTALLATION” on page8.

CLEANING AND MAINTENANCE

(CONT.)

9

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10

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DUCTING DO’S AND DON’TS

GENERAL REQUIREMENTS

Observe local codes regarding special duct requirements and placement of duct work against

combustibles.

• Using recommended transitions (see VENT ACCESSORIES) will ensure proper efficiency.

• Using recommended roof caps or wall louvers (see VENT ACCESSORIES) will ensure proper

efficiency.

• Use foil HVAC tape (not grey cloth duct tape) to seal all joints.

• The hood must be ducted to the outdoors without restrictions.

BLOWER REQUIREMENTS

The dual blower unit (WM2L, used in all systems) requires 8” round duct or equivalent (50 square

inches). The single blower unit (WM1L, used in addition to the dual blower unit in 900 CFM

systems) requires 6” round duct or equivalent (28 square inches).

COMBINED DUCT SIZE AFTER A TRANSITION

Single and Dual (WM1L & WM2L) combine to 10” round or equivalent 79 sq. in. when using a

multi-blower transition such as AKVT6810 (Optional).

Two Duals (Two WM2Ls) combine to 12” round or equivalent 113 sq. in. when using a multi-blower

transition such as AKVT8812 (Optional).

DUCTING REQUIREMENTS (DO’S AND DON’TS)

• NEVER reduce the duct size. When combining ducts together, the square inch area of

the outlet duct must be equal or greater than the total square inch area of the ducts being

combined.

• Only use smooth galvanized metal duct. Do not use flexible or corrugated duct. This type of

duct will restrict airflow and reduce performance.

• Make the duct run as short and as straight as possible with as few turns as possible.

• Avoid sharp-angled turns. Instead, use smooth, gradual turns such as adjustable elbows or 45

degree angled turns.

• For duct runs over 20 feet, increase the duct diameter by one inch for every ten feet of duct.

• When planning length, a 90 degree elbow is equivalent to 5 feet of duct.

TERMINATION REQUIREMENTS

Airflow must not be restricted at the end of the duct run.

A wall louver or roof cap is required for each duct run.

Every wall louver or roof cap must

include a gravity damper to prevent

back drafts.

Do not use screen wire or spring-

loaded doors on wall louvers or roof

caps.

Do not terminate venting into an attic

or chimney.

Smooth duct Smooth gradual turn

Proper combining

of two ducts

YES

NO

Flexible duct Sharp angled turns

of two ducts

Improper combining

INSTALLATION

TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO

PERSONS, OBSERVE THE FOLLOWING:

a) Installation work and electrical wiring must be done by qualified person(s) in accordance with

all applicable codes and standards, including fire-rated construction.

b) 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

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.

c) When cutting or drilling into wall or ceiling, do not damage electrical wiring and other hidden

utilities.

d) Ducted fans must always be vented to the outdoors.

TO REDUCE THE RISK OF FIRE, USE ONLY METAL DUCTWORK.

TO REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOT USE THIS BLOWER WITH

ANY SOLID-STATE SPEED CONTROL DEVICE.

INSTALLATION DETAILS

1. Read all instructions thoroughly before beginning installation. Note: These instructions apply

to Hestan hoods only.

• See “DUCTING DO’S AND DON’TS” on page10

• Weight and size: For safe installation, at least two people should be present to lift and hold the

hood. For larger hoods and installations with duct covers, it is advisable to have a third person

present to assist.

• Back Venting: If venting out the wall behind the hood instead of venting through the ceiling,

see “BACK VENTING” on page16 for details.

2. When installing a wall mount range hood, it is recommended that the bottom edge of the hood

be located no more than 30” above the cooking surface for optimum performance.

3. Duct Preparation

IF THE HOOD IS TO BE “BACK VENTED”, PROCEED DIRECTLY TO

STEP 4.

a) Consult the connection diagrams (following) for further details on

exhaust outlet placement.

b) Install the duct(s) from the outside of the home down to the

location of the exhaust outlet(s) on the top of the hood allowing

room for the transition (if applicable). If a transition is used, install

duct down to the location of the transition outlet plus 1”. This will

allow the transition to engage 1” inside of duct.

c) Use foil HVAC tape (not gray cloth duct tape) to seal all joints. See

“VENT ACCESSORIES” on page17 for a listing of Hestan ducting

accessories.

Make sure that once the hood is mounted, the

motor cooling vents are not obstructed.

30”

[76.2 cm]

9”

[22.9 cm]

9”

[22.9 cm]

36”

[91.4 cm]

Optional duct

cover

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TRANSITION HEIGHTS:

Dual Blower (WM2L = 600 CFM): no transition - 8” round duct will connect directly to the

blower outlets, 9” below top edge of the hood.

Single and Dual Blower (WM1L + WM2L = 900 CFM): 6” round duct will connect directly

to the single blower outlet, 8” round will connect directly to the dual blower outlet.

The outlets are 9” below top of hood. If using the optional multi-blower transition

(AKVT6810, sold seperately), a 10” round duct connects to it 8-1/2” above top of hood.

Two Dual Blowers (Two WM2Ls = 1200 CFM): 8” round duct will connect directly to each

dual blower outlet. The outlets are 9” below the top of hood. If using the optional multi-

blower transition (AKVT8812, sold seperately), a 12” round duct connects to it 7-1/2”

above top of hood.

CONNECTION DIAGRAMS

Motor

Cooling

Vent (2)

Electrical

WM2L Dual Blower (600 CFM ) (Top View)

(Wall Side)

Centerline

of Hood

Connection Diagram (30-36” width)

8" [20.3 cm] Round

5-1/2"

[14 cm]

1-3/4"

[4.4 cm]

5-1/4"

[13.3 cm]

Connection diagram (42”, 48” widths)

8" Round

WM2L Dual + WM1L Single Blower (900 CFM) (Top View)

(Wall

Side)

Centerline

of hood

Electrical (2)

Motor

Cooling

Vent (3)

6" [15.2 cm]

Round

7-5/16"

[18.6 cm]

1-7/8"

[4.8 cm]

5-1/4"

[13.3 cm]

1-3/4"

[4.4 cm]

7-5/16"

[18.6 cm]

5-1/2"

[14 cm]

18"

[45.7 cm]

10"

[25.5 cm]

Optional AKVT6810 transition

piece installed

8-1/2"

[21.6 cm]

(Front View)

INSTALLATION

(CONT.)

Duct cover

(top of hood)

10" Dia. or 12" Dia.

transition centered

in cover

For 900 and 1200 CFM hoods, a transition

(AKVT6810 or AKVT8812) may be installed.

Its outlet will be located in the exact center of

the duct cover (left to right & front to rear).

12

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4. Remove the hood from its packaging and place the back of the hood on the floor or countertop

in front of the wall where it will hang.

5. With the hood on its back facing you, remove

the shield(s) and blower housing(s) as follows:

a) Remove the shipping tape that is securing

the blower shield(s) inside the hood.

b) Remove the blower shield(s) by lightly

pulling it toward the front of the hood.

c) Gently close the back draft damper(s) from

the top side of the hood.

d) To remove the blower housing(s), unsnap

the suitcase latches (one on each side of

the housing).

e) Support the housing and lift it away from the blower base, then tip it back toward you to

clear the blower wheel(s), and then pull it from the hood.

Make sure power is off at the supply panel / breaker during service or

installation.

6. One blower motor must be removed from each blower assembly to access the connection

box(es). The blower assembly will have a decal identifying the location of the connection

box(es). It is not necessary to remove the blower wheel from the motor.

a) Remove the three screws retaining the blower motor.

b) Pull the motor out far enough so you can reach its electrical connector.

c) Unplug the connector, set the blower motor and screws aside.

7. WIRING PREPARATION:

a) Install an appropriate 1/2” UL listed electrical wire clamp through each motor box

electrical opening on top of the hood.

b) Install electrical wiring from the service panel to the hood location for each motor box.

Consult the connection diagrams (on previous page) for further details on electrical

placement. See “ELECTRICAL SUPPLY AND GROUNDING” on page1 for power

requirements.

8" [20.3 cm]

Round

5-1/2"

[14 cm]

1-3/4"

[4.4 cm]

11"

[29.9 cm]

11"

[29.9 cm]

8" [20.3 cm]

Round

Electrical (2)

Two WM2L Dual Blowers (1200 CFM) (Top View)

(Wall Side)

Centerline

of Hood

Motor

Cooling

Vent (4)

Connection diagram (54” width)

5-1/4"

[13.3 cm]

12"

[30.5 cm]

18"

[45.7 cm]

Optional AKVT8812

transition piece installed

(Front View)

7-1/2"

[19.1 cm]

INSTALLATION

(CONT.)

13

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8. Mark the wall at the lower edge of the hood opening as follows:

a) Remove the duct cover from its packaging and remove the mounting screws from the base

of the duct cover.

b) Place the duct cover on the top of the hood and secure it using the mounting screws

previously removed.

c) Lift the hood and duct cover to the location on the wall where it will be installed and

lightly mark the wall with a short, horizontal mark along the bottom edge of the hood.

9. Find and mark location of mounting strip as follows:

a) Set the hood down so its back is accessible.

b) On the back side of the hood, measure the distance between the bottom edge of the hood

and the top edge of the wood mounting strip.

c) Measure this distance above the horizontal mark made in Step 8 and lightly mark the wall

with a level, horizontal line.

d) Measure where the center (left to right) of the hood will be and mark the upper, horizontal

line on the wall with a short, vertical centerline.

10. Attach the mounting strip to the wall as follows:

a) Remove the screws inside the top of the back of the hood that retain the wood mounting

strip that is recessed in the mounting channel. Note: Some retaining screws may be

located behind the blower(s).

b) Remove the wood mounting strip from the back of the hood and place the top edge of the

strip on the upper, level, horizontal line on the wall.

c) Referencing the vertical centerline from Step 9, center the mounting strip on the wall (left

to right) in the space where the hood will be located. Mark the strip at two or more stud

locations, and drill clearance holes in the wood strip to prevent splitting.

d) Using proper hardware, attach the mounting strip to at least two wall studs.

11. FOR BACK VENTING APPLICATIONS ONLY. IF NOT BACK VENTING, PROCEED DIRECTLY

TO STEP 12.

• Note: Wall studs may interfere with back venting installations. Additional framing may be

required. It is necessary to cut duct access hole(s) in the wall prior to installing the hood.

a) Remove and set aside the duct cover that was installed in step 8.

b) Hold the hood on the mounting strip by aligning the channel at the top of the back of the

hood over the wood mounting strip on the wall.

c) Place the appropriate elbow(s) on top of the hood in line with the hood exhaust collar(s).

On the wall, trace around the elbow(s). Remove the hood and elbow(s) from the wall.

d) Cut around the outside of the traced line(s), avoiding wall studs. Install the duct from the

outside of the home to the opening in the wall. Use foil HVAC tape (not grey cloth duct

tape) to seal all joints.

e) Place the duct cover back onto the top of the hood and reattach it to the hood.

12. Mark screw holes in mounting strip:

a) While holding the hood in place, mark locations on the mounting strip through the two

mounting holes in the channel at the top of the hood. Some mounting holes may be

located behind the blower(s).

INSTALLATION

(CONT.)

14

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INSTALLATION

(CONT.)

b) Remove hood and drill 3/32” pilot holes at the center of marks in the wood strip to

prevent splitting.

13. FOR BACK VENTING APPLICATIONS ONLY.

IF YOU ARE NOT BACK VENTING, PROCEED DIRECTLY TO STEP 15.

a) Place the appropriate elbow on the top of the hood. Elbow should be placed with the

non-crimped end(s) on the inside of the collar(s) of the exhaust outlet(s). Use foil HVAC

tape (not grey cloth duct tape) to seal all joints.

b) Insert the electrical wire from the service panel into the electrical wire clamp on each

motor box. Tighten the wire clamp(s).

c) While securing the slack in the wire, lift the hood up to the wall and hang the hood on the

mounting strip, taking care to properly align the duct connection(s) between the elbow(s)

on the hood and the duct(s) in the wall.

d) Secure the hood to the mounting strip by aligning the mounting holes with the holes in

the mounting strip and installing the screws previously removed from the strip in step 10.

IF BACK VENTING, SKIP STEPS 14 AND 15. PROCEED DIRECTLY TO STEP 16.

14. NON-Back Venting:.

a) Insert the electrical wire from the service panel into the electrical wire clamp on each

motor box. Tighten the wire clamp(s).

b) Cut a piece of duct of sufficient length to meet the duct in the ceiling allowing room for

the transition (if applicable). If a transition is used, cut the duct to reach the transition

outlet plus 1”. This will allow the transition to engage 1” inside of the duct. See

“TRANSITION HEIGHTS:” on page12

c) One end of the duct must be crimped to fit inside the duct in the ceiling. Insert the non-

crimped end over the transition or into the exhaust collar(s) on the top of the hood and

seal with foil HVAC tape (not gray cloth duct tape).

15. Hang the hood:

a) While securing the slack in the wire, lift the hood up to the wall and hang the hood on the

mounting strip, taking care to properly align the duct connection(s) between the hood and

the duct in the ceiling.

b) Secure the hood to the mounting strip by aligning the mounting holes with the holes in

the mounting strip and installing the screws previously removed from the strip in step 10.

16. WIRING CONNECTION:

From inside the hood, using UL listed wire nuts, attach the “neutral” wire(s) to the white

lead(s), the “hot” wire(s) to the black lead(s), and the ground wire(s) to the green lead(s)

inside the motor box(es).

DO NOT OPERATE HOOD WITHOUT PROPER GROUND

CONNECTION.

17. Plug the connectors for the motor(s) back into the hood and reinstall the blower motor(s) using

the retaining screws that were removed in Step 7.

18. Replace the blower housing(s) and the blower shield(s). Make sure that the damper(s) open and

close smoothly.

19. Turn Power ON, verify operation: See “USING THE VENTILATION SYSTEM” on page5

for proper hood operation. Test all blower and light functions to ensure they are operating

properly.

15

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BACK VENTING

When venting out through the wall, one or two elbow fittings are required, depending on the

blower configuration:

ELBOWS FOR 600 CFM

Hoods with 600 CFM blower systems require one 8” elbow.

ELBOWS FOR 900 CFM

Units with 900 CFM blower systems require one 8” elbow and one 6” elbow.

ELBOWS FOR 1200 CFM

Hoods with 1200 CFM blower systems require two 8” elbows, one for each 600 CFM blower unit.

Side View

8” Round

9”

[22.9 cm]

Standard 6” [15.2 cm] round: 8-1/2” [21.6 cm]

Standard 8” [20.3 cm] round: 10-3/4” [27.3 cm]

Elbow and Transition Heights

Height when

fully adjusted to

90 degrees:

H

12”

[30.5 cm]

6”

[15.2 cm]

16”

[40.6 cm]

8” Round

[20.3 cm]

8-1/2”

[21.6 cm]

Optional

duct cover

600 CFM blower module uses 8” round

300 CFM blower module uses 6” round

(Drawing not to scale)

Low profile elbow: 8” to 6” x 8-1/2”

Hestan P/N AKVBE8

INSTALLATION

(CONT.)

16

EN

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