GAS COOKTOP INSTALLATION INSTRUCTIONS

INSTALLATION AND SERVICE MUST BE PERFORMED BY A QUALIFIED INSTALLER.

IMPORTANT: SAVE FOR LOCAL ELECTRICAL INSPECTOR'S USE.

READ AND SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE.

WARNING

If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury or death.

FOR YOUR SAFETY:

— DO NOT store or use gasoline or other fl ammable vapors and liquids in the vicinity of this or any other appliance.

— WHAT TO DO IF YOU SMELL GAS:

• DO NOT try to light any appliance.

• DO NOT touch any electrical switch; DO NOT use any phone in your building.

• Immediately call your gas supplier from a neighbor's phone.

Follow the gas supplier's instructions.

• If you cannot reach your gas supplier, call the fi re department.

— Installation and service must be performed by a qualifi ed installer, service agency or the gas supplier.

Appliances Installed in the state of

Massachusetts:

This Appliance can only be installed in the state of Massachusetts by a

Massachusetts licensed plumber or gas fi tter.

This appliance must be installed with a three (3) foot / 36 in. long fl exible gas connector. A "T" handle type manual gas valve must be installed in the gas supply line to this appliance.

PRODUCT DIMENSIONS

20

/

8

”

/

8

"

(51.1 cm)

23 3

/

/

8

8

”

"

(59.4 cm)

3

3

11

/

16

"

9.4 cm

”

(9.4 cm)

17 13

/

16

”

"

(45.2 cm)

Figure 1

MODEL

A

. COOKTOP

WIDTH

30" Gas Cooktop

36" Gas Cooktop

30" (76.2 cm)

36" (91.4 cm)

All dimensions are stated in inches and (cm).

PRODUCT DIMENSIONS

B

. COOKTOP

DEPTH

21 13

/

32

" (54.4 cm) 26

21

23

/

32

" (55.1 cm)

C

32

11

. CHASSIS

/

WIDTH

16

" (83.0 cm)

D

13

/

16

" (68.1 cm) 18

18

. CHASSIS

DEPTH

15

/

16

" (48.1 cm)

15

/

16

" (48.1 cm)

Printed in U.S.A.

318205457 (0613) Rev. B

GAS COOKTOP INSTALLATION INSTRUCTIONS

Important Notes to the Installer

1. Read all instructions contained in these installation instructions before installing the cooktop.

2. Remove all packing material before connecting the electrical supply to the cooktop.

3. Observe all governing codes and ordinances.

4. Be sure to leave these instructions with the consumer.

5. Note: For operation at 2000 ft. elevations above see level, appliance rating shall be reduced by 4 percent for each additional

1000 ft.

Important Note to the Consumer

Keep these instructions with your Use and

Care Guide for future reference.

IMPORTANT SAFETY

INSTRUCTIONS

Installation of this cooktop must conform with local codes or, in the absence of local codes, with the National Fuel Gas

Code ANSI Z223.1/NFPA 54 in the

United States, or in Canada, with the

Canadian Fuel Gas Code, CAN/CGA

B149 and CAN/CGA B149.2.

• When installed in a manufactured

(mobile) home installation must conform with the Manufactured Home

Construction and Safety Standard, title 24 CFR, part 3280 [Formerly the

Federal Standard for Mobile Home

Construction and Safety, title 24, HUD

(part 280)] or, when such standard is not applicable, the Standard for

Manufactured Home Installation, ANSI/

NCSBCS A225.1 or with local codes where applicable.

This cooktop has been design certifi ed by Underwriters Laboratories (UL).

As with any appliance using gas and generating heat, there are certain safety precautions you should follow. You will fi nd them in the Use and Care Guide, read it carefully.

2

• Be sure your cooktop is installed

and grounded properly by a qualifi ed installer or service technician.

• This cooktop must be electrically

grounded in accordance with local codes or, in their absence, with the National Electrical Code ANSI/

NFPA No. 70—latest edition in the

United States, or in Canada, with the Canadian Electrical Code, CSA

C22.1 Part 1.

• The burners can be lit manually

during an electrical power outage.

To light a burner, hold a lit match to the burner head, then slowly turn the Surface Control knob to LITE.

Use caution when lighting burners manually.

DO NOT store items of

interest to children in cabinets above the cooktop.

Children could be seriously burned climbing on the cooktop to reach items.

• To eliminate the need to reach over

the surface burners, cabinet storage space above the burners should be avoided.

• Adjust surface burner fl ame size so

it does not extend beyond the edge of the cooking utensil.

Excessive fl ame is hazardous.

Never use your cooktop

for warming or heating the room.

Prolonged use of the cooktop without adequate ventilation can be hazardous.

Storage on Appliance.

Flammable materials should not be stored near surface units.

This includes paper, plastic and cloth items, such as cookbooks, plasticware and towels, as well as fl ammable liquids.

DO NOT

store explosives, such as aerosol cans, on or near the appliance.

Flammable materials may explode and result in fi re or property damage.

WARNING

The electrical power to the cooktop must be shut off while gas line connections are being made. Failure to do so could result in serious injury or death.

13" (33 cm)

Max. Depth

For Cabinet

Installed

Above

Cooktop.

GAS COOKTOP INSTALLATION INSTRUCTIONS

E

30" (76.2 cm)

Min. Clearance

Between the Top of the Cooking

Platform and

Unprotected

Wood or Metal

Cabinet

Clearance

18" Min.

(45.7 cm)

1 ⅜" (3.5 cm) Minimum Flat

Distance from Cutout Edge.

G

H

F

F

24" Min.

(61 cm)

1 ⅜" (3.5 cm) Minimum Flat

Distance from Cutout Edge.

MODEL

36" Cooktop

E. Top Cabinet

Minimum Side

Clearance

30" Cooktop 30" (76.2 cm)

36" (91.4 cm)

Figure 2 – CABINET DESIGN

F. Minimum

Clearance from

Each Side

9" (22.9 cm)

9" (22.9 cm)

G. Cutout Width

± 1/16" (0.2 cm)

28" (71.1 cm)

34" (86.4 cm)

H. Cutout Depth

± 1/16" (0.2 cm)

19 ⅛" (48.6 cm)

19 ⅛" (48.6 cm)

CAUTION

To eliminate the risk of burns or fi re from reaching over heated surfaces, cabinet storage space located above the cooktop should be avoided.

* For installations involving replacing an existing cooktop, the cutout depth (H) in the countertop may be larger than the above recommendation.

A Gap Filller Trim Kit is available which will then allow for a maximum cutout depth (H) of 21 3/16".

3

The Gap Filler Trim Kit part number is

5304488403.

Before beginning installation, refer to the instructions included with Gap Filler Trim Kit

5304488403 for countertop dimensions, cutout limitations, and proper location of ductwork.

GAS COOKTOP INSTALLATION INSTRUCTIONS

Required Tools for Installation

- Phillips Screwdriver

- ¼" Nut driver / Ratchet

-

7 /

16

" Nut driver / Ratchet

Supplied Hardware

Qty.

Description

(4)

(2)

(4)

1/4-20 Nylon Insert

7/16" Hex Nut

#10-24 3.5"

Long Phillips

Screw

#8-18 Wide Head

Phillips Screw

(6)

#8-18 Black

¼" Hex Head Screw

Used for

Blower (fi g. 20)

Brackets

(fi g. 15 & 16)

Transition Duct

(fi g. 18)

Plenum and

Wire Box (fi g.

17 & 21)

(2) Hold Down Bracket

Countertop

(fi g. 15 & 16)

3 1 /

4

”

(8.3 cm)

5

1

/

2

”

(13.9 cm)

11”

(27.9 cm)

4”

(10.2 cm)

4”

(10.2 cm)

Recommended

Gas Supply

Stub Area

1

Wall Outlet Location

Install the electric wall outlet within the shaded area.

6”

(15.2 cm)

5

1

/

2

”

(13.9 cm)

4”

(10.2 cm)

8 3 /

4

”

(22.2 cm)

11 1 /

2

”

(29.2 cm)

Figure 3B - 30” MODEL

ELECTRICAL OUTLET INSTALL DIMENSIONS

Recommended

Gas Supply

Stub Area

2

Provide an Adequate Gas Supply

This cooktop is designed to operate on natural gas at 4" of manifold pressure only.

WARNING

A pressure regulator must be connected in series with the manifold on the cooktop and must remain in series with the supply line.

For proper operation,

the maximum inlet pressure to the regulator must be no more than

14" of water column (W.C.) pressure.

For checking the regulator, the inlet pressure must be at least 1" (or 2.5 kPa) greater than the regulator manifold pressure setting. The regulator is set for 4" of manifold pressure, the inlet pressure must be at least 5".

The gas supply line to the range should be 1/2" or

3/4" pipe.

Figure 3A - 36” MODEL

ELECTRICAL OUTLET INSTALL DIMENSIONS

4

GAS COOKTOP INSTALLATION INSTRUCTIONS

3

LP/Propane Gas Conversion

This appliance can be used with Natural gas or

LP/Propane gas. It is shipped from the factory for use with natural gas.

A kit for converting to LP gas is supplied with your cooktop. The kit is marked "FOR LP/PROPANE

GAS CONVERSION".

The conversion must be performed by a qualifi ed service technician in accordance with the kit instructions and all local codes and requirements. Failure to follow instructions could result in serious injury or property damage. The qualifi ed agency performing this work assumes responsibility for the conversion.

WARNING

Failure to make the appropriate conversion can result in serious personal injury and property damage.

NOTE:

Purchase a new fl exible line. DO NOT

USE AN OLD PREVIOUSLY USED LINE.

Important:

Remove all packing material and literature from cooktop before connecting gas and electrical supply to cooktop.

The wall receptacle and circuit should be checked by a qualifi ed electrician to make sure the receptacle is properly grounded.

Where a standard 2-prong wall receptacle is installed, it is the personal responsibility and obligation of the consumer to have it replaced by a properly grounded 3-prong wall receptacle.

Preferred Method

Grounding type wall receptacle

DO NOT, under any circumstances, cut, remove, or bypass the grounding prong.

Power supply cord with 3-prong grounding plug.

Figure 4

4

Model and Serial Number

Location

The serial plate is located on the underside of the cooktop.

When ordering parts for or making inquires about your cooktop, always be sure to include the model and serial numbers and a lot number or letter from the serial plate of your cooktop.

Your serial plate also tells you the rating of the burners, the type of fuel and the pressure the cooktop was adjusted for when it left the factory.

DO NOT, under any circumstances, cut or remove the third (ground) prong from the power cord.

WARNING

Disconnect electrical supply cord from wall receptacle before servicing cooktop.

6

Positioning the Cooktop

The exhaust vent from the cooktop must be located between wall studs or fl oor joists so that the ductwork may be installed properly

5

Electrical Requirements

WARNING

120 volt, 60 Hertz, properly grounded branch circuit protected by a 15 amp circuit breaker or time delay fuse. DO NOT use an

extension cord with this cooktop.

7

Prepare Base Cabinet

This cooktop is designed to fi t easily into a variety of cabinets. However, some cabinets may require modifi cations.

7.1

Preparing a Cabinet with Drawers

If the cabinet has drawers, the drawers must be removed and the drawer fronts attached to the front of the cabinet.

Verify internal length and width of base cabinet

In some cabinets, the sides or back wall may need to be cut out, and the corner braces removed in order to accommodate the unit.

Grounding Instructions

IMPORTANT

Please read carefully.

WARNING

For personal safety, this appliance must be properly grounded.

The power cord of this appliance is equipped with a 3-prong (grounding) plug which mates with a standard 3-prong grounding wall receptacle (see

Figure 4) to minimize the possibility of electric shock hazard from the appliance.

5

7.2

Countertop Cutout

Countertops with a rolled front edge and radius at the base of the backsplash may not provide the fl at surface area required to accommodate the cooktop.

Cut countertop opening according to the dimensions shown in Figure 2. The opening must be cut squarely with sides parallel to each other, front and rear perpendicular to the sides.

GAS COOKTOP INSTALLATION INSTRUCTIONS

8

Installing the Ductwork

Use galvanized or aluminum duct in 6” round or 3¼” x 10" size, or a combination of both.

PVC duct should be used if installing under a poured concrete slab. Use the shortest and straightest duct run possible. For satisfactory performance, the duct run should not exceed 100 feet equivalent length. Refer to the “Calculating

Duct Length” chart for equivalent lengths. (see page 14). All duct joints should be fastened with a screw and sealed with tape as shown in Figure 5.

NOTE: Local building code must be followed in specifying approved type and schedule of ALL duct used. Always use an appropriate roof or wall cap with damper.

Duct Tape

Over Seam and Screw

Air Flow

Figure 7 – DUCT THROUGH-THE-FLOOR

Screw

Figure 5 –

DUCT TAPE OVER SEAM AND SCREW

Figure 6 – DUCT ON-THE-FLOOR

6

Figure 8 – DUCT THROUGH-THE-WALL

GAS COOKTOP INSTALLATION INSTRUCTIONS

CUTOUT

CENTER

9

Preparing for Ductwork

Cut hole in cabinet wall or fl oor as appropriate for your installation. Make sure exhaust duct is located between wall studs or fl oor joists. Figure

9, 10, 11 & 12.

NOTE: Ductwork MUST be vented to outside. DO

NOT

vent into a wall, ceiling, crawlspace, attic or any concealed space.

WARNING

When cutting or drilling into wall or ceiling, DO NOT damage electrical wiring and other hidden utilities.

CUTOUT

CENTER

CUTOUT

CENTER

CUTOUT

CENTER

4

7

/

16

" (11.3cm)

4 5

/

16

" (11.0cm)

7

1

/

8

" (18.1cm)

Figure 11 – 36" MODEL

BOTTOM DUCTWORK HOLE

CUTOUT

CENTER

CUTOUT

CENTER

¼

" (0.6cm)

16

15

/

16

" (43.0cm)

8

1

/

16

"

CUTOUT

CENTER

Figure 9 – 30" MODEL

BOTTOM DUCTWORK HOLE

CUTOUT

CENTER

4

5

/

16

" (11.0cm)

8" (20.3cm)

¼

" (0.6cm)

Figure 12 – 36" MODEL

LEFT OR RIGHT DUCTWORK HOLE

Figure 10 – 30" MODEL

BACK WALL DUCTWORK HOLE

7

GAS COOKTOP INSTALLATION INSTRUCTIONS

9.1

Alternate Ducting

For installations involving space restrictions for orienting the blower to connect to the ductwork a duct adapter, Kit

5304488297 is available.

Dimensions are shown for locating the duct cutout with this adapter kit.

Figure 13

ALTERNATE DUCT

TRANSITION KIT

CUTOUT

CENTER

9.2

Makeup Air

Local building codes may require the use of makeup air systems. Consult local codes to determine specifi c makeup air requirements for your installation.

10

Blower to Ductwork Alignment

The use of fl exible ducting is discouraged because it can severely restrict airfl ow. If the blower outlet and the fl oor or wall duct location

DO NOT

align, then fl exible METAL ducting can be used to adapt to an offset.

22 5

/

8

"

(57.5cm)

6

3

/

8

"

(16.2cm)

6"

(15.2cm)

6" MAX.

Center line

To Center line Offset

Figure 13A - 30" MODEL

ALTERNATE DUCTWORK HOLE

16

1

/

8

"

(41cm)

10

1

/

8

"

(25.7cm)

CUTOUT

CENTER

8

7

/

8

"

(22.5cm)

10

1

/

8

"

(25.7cm)

6"

(15.2cm)

3

5

/

8

"

(9.2cm)

22

5

/

8

"

(57.5cm)

Figure 14 – DUCTWORK ALIGNMENT

Figure 13B - 36" MODEL

ALTERNATE DUCTWORK HOLE

8

GAS COOKTOP INSTALLATION INSTRUCTIONS

11

Installing the Cooktop

Lift the cooktop by the side edges as shown.

Lower the cooktop into the countertop opening, guiding it into position. Support the underside and lower slowly. Carefully remove your fi ngers one corner at a time to lower the cooktop into position.

NOTE:

DO NOT use Silicone RTV or caulk to seal the cooktop to the countertop.

Cooktop

Countertop

Screws Supplied

with Cooktop

with Cooktop screw

Figure 17 – INSTALLATION BRACKETS

Figure 15 – LOWERING COOKTOP INTO CUTOUT

13

Installing the blower plenum to the cooktop

With the blower opening on the right slide the plenum into the opening in the bottom of the cooktop.

Push up on the plenum until the mounting rails on the sides of the plenum contact the bottom of the cooktop. Install four #8-18 x 3/8” sheet metal screws to hold the plenum in place.

12

Installing the installation brackets

Remove screws from the cooktop chassis and use to attach the hold down bracket to the bottom of the chassis. Insert the screw into the bracket until it contacts the backside of the countertop.

To prevent damage to the countertop, DO NOT overtighten the screw.

Install Four #8-18

Black Hex Head

Screws

Figure 18 – 30" MODEL

ATTACH PLENUM TO THE COOKTOP

One Hold

Down Bracket

Two #8-18 Black Hex

Head Screws Attached to

Cooktop

One Long

Phillips Screw

Figure 16 – ATTACH THE TWO BRACKETS

9

GAS COOKTOP INSTALLATION INSTRUCTIONS

15

Installing the blower to the plenum

Install four nylon insert nuts to the studs on the blower, fi nger tighten until resistance is felt.

Position the blower discharge opening to match the ductwork. Slide the nuts on the side of the blower housing into the four keyhole openings on the side of the plenum and allow to slide down into the slots. Using a wrench or ratchet from the inside of the plenum tighten the nuts.

Install 4 Screws

Black Hex Head

Screws

Figure 19 – 36" MODEL

ATTACH PLENUM TO THE COOKTOP

14

Installing the transition to the blower

Attach the transition to the outlet of the blower using four screws. Tape the joint to seal.

Figure 21 – ATTACH BLOWER TO THE PLENUM

One screw per side

Wide Head Phillips

Screws

Figure 20 – ATTACH TRANSITION TO THE

BLOWER

10

Figure 22 – NUT LOCATIONS INSIDE THE

PLENUM

GAS COOKTOP INSTALLATION INSTRUCTIONS

16

Blower electrical connection

Connect the 5-pin plug on the blower assembly to the matching 5-pin receptacle on the bottom of the cooktop.

Fold all wires into the wire box on the end of the blower conduit. Fasten the wire box to the cooktop with two #8 x 3/8” making sure that no wires are trapped.

18

Install Pressure Regulator

Install the pressure regulator with the arrow on the regulator pointing up toward the unit in a position where you can reach the access cap.

WARNING

DO NOT make the connection too tight. The regulator is die cast. Overtightening may crack the regulator resulting in a gas leak and possible fi re or explosion.

Manual

Shutoff

Valve

Flare

Union

GAS FLOW

Flare

Union

Pressure

Regulator

On

Off

Nipple

Flexible

Connector

Nipple

Access

Cap

All connections must be wrench-tightened

Figure 23 – CONNECT BLOWER TO COOKTOP

17

Connecting the Ductwork

Connect the ductwork prepared in Steps 8, 9 and

10 to the blower transition duct.

Assemble the fl exible connector from the gas supply pipe to the pressure regulator in the following order:

1. manual shutoff valve

2. 1/2" (1.3 cm) nipple

3. 1/2" (1.3 cm) fl are union adapter

4. fl exible connector

5. 1/2" (1.3 cm) fl are union adapter

6. 1/2" (1.3 cm) nipple

7. pressure regulator

Use pipe-joint compound made for use with

Natural and LP/Propane gas to seal all gas connections. If fl exible connectors are used, be certain connectors are not kinked.

11

Figure 25 – PHYSICAL ATTACHMENT OF THE

GAS LINE TO THE COOKTOP

GAS COOKTOP INSTALLATION INSTRUCTIONS

WARNING

The supply line must be equipped with an approved manual shutoff valve. This valve should be located in the same room as the cooktop and should be in a location that allows ease of opening and closing. DO NOT block access to the shutoff valve. The valve is for turning on or shutting off gas to the appliance.

to appliance to gas suppl

Shutoff Valve -

Open position

Figure 26 – SHUTOFF VALVE y line

19

Electrical Requirements

120 volt, 60 Hertz, properly grounded branch circuit protected by a 15 amp circuit breaker or time delay fuse. DO NOT use an extension cord

with this cooktop.

19.1

Grounding Instructions

IMPORTANT

Please read carefully.

For personal safety, this appliance must be properly grounded.

The power cord of this appliance is equipped with a 3-prong (grounding) plug which mates with a standard 3-prong grounding wall receptacle (see

Figure 25) to minimize the possibility of electric shock hazard from the appliance.

The wall receptacle and circuit should be checked by a qualifi ed electrician to make sure the receptacle is properly grounded.

Where a standard 2-prong wall receptacle is installed, it is the personal responsibility and obligation of the consumer to have it replaced by

Once regulator is in place, open the shutoff valve in the gas supply line. Wait a few minutes for gas to move through the gas line.

18.1

Check for leaks.

After connecting the cooktop to the gas supply, check the system for leaks with a manometer. If a manometer is not available, turn on the gas supply and use a liquid leak detector (or soap and water) at all joints and connections to check for leaks.

WARNING

DO NOT use a fl ame to check for leaks from gas connections. Checking for leaks with a fl ame may result in a fi re or explosion.

Preferred Method

Grounding type wall receptacle

DO NOT, under any circumstances, cut, remove, or bypass the grounding prong.

Power supply cord with 3-prong grounding plug.

18.2

Tighten all connections

if necessary to prevent gas leakage in the cooktop or supply line.

Figure 27 – POWER SUPPLY CORD

a properly grounded 3-prong wall receptacle.

18.3

Disconnect this cooktop and its individual manual shutoff valve

from the gas supply piping system during any pressure testing of that system at test pressures greater than 1/2 psig (3.5 kPa or 14"water column).

DO NOT, under any circumstances, cut or remove the third (ground) prong from the power cord.

WARNING

Disconnect electrical supply cord from wall receptacle before servicing cooktop.

18.4

Isolate the cooktop from the gas supply piping system

by closing its individual manual shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 psig (3.5 kPa or 14" water column).

12

20

Install Burner Caps

A. Unpack the burner grates.

B. Burners: Unpack the Burner heads and burner caps. Place the burner heads and caps on the matching bases.

C. The caps should be level after installation

D. Be sure that all the burner caps burner head are correctly placed BEFORE using your cooktop.

GAS COOKTOP INSTALLATION INSTRUCTIONS

21

Install Filter and Grates

DO NOT

operate the vent without the fi lter in place.

• Place the fi lter diagonally through the vent chamber.

• Make sure it rests, at an angle, on the supports in the vent opening.

Vent Chamber

• Carefully place vent grate seal over the vent chamber on the cooktop, with the side marked

FRONT to the front. Make sure the collar on the bottom of the seal is fully inserted the vent opening. Secure the seal in place with screw.

• Place the vent grate over the vent opening.

Place the burner grates over the burners.

Vent Grate

Grease Filter

Vent

Chamber

Vent Grate

Seal

Figure 28

VENT FILTER LOCATION – 30" MODEL

Grease Filter

Vent

Chamber

Figure 30

VENT GRATE AND SEAL LOCATION – 30" MODEL

Vent Grate

Vent Grate

Seal

Figure 31

VENT GRATE AND SEAL LOCATION – 36" MODEL

Figure 29

VENT FILTER LOCATION – 36" MODEL

Figure 32

SECURE THE SEAL

13

GAS COOKTOP INSTALLATION INSTRUCTIONS

22

Check Operation

Refer to the Use and Care Guide packaged with the cooktop for operating instructions and for care and cleaning of your cooktop.

21.1

Turn on Electrical Power and Open Main

Shutoff Gas Valve

21.2

Check the Igniters

Operation of electric igniters should be checked after cooktop and supply line connectors have been carefully checked for leaks and the cooktop has been connected to electric power.

To operate the surface burner

:

A. Push in and turn a surface burner knob to the

LITE position. You will hear a small ticking noise; this is the sound of the electric ignitor which lights the burner.

B. After the burner lights, turn to the desired fl ame size. The controls DO NOT have to be set at a particular mark. Use the marks as a guide and adjust the fl ame as needed.

When All Hookups are Complete

Make sure all controls are left in the OFF position.

Make sure the fl ow of combustion and ventilation air to the cooktop is unobstructed.

Before You Call for Service

Read the Before You Call for Service Checklist and operating instructions in your Use and Care

Guide

. It may save you time and expense. The list includes common occurrences that are not the result of defective workmanship or materials in this appliance.

Refer to the warranty in your Use and Care

Guide

for our service phone number and address.

Please call or write if you have inquiries about your product and/or need to order parts.

14

NOTES

GAS COOKTOP INSTALLATION INSTRUCTIONS

Calculating Duct Length Table

For maximum effi ciency, use the shortest and straightest duct possible. Use as few fi ttings as possible. For best performance, the duct run should not exceed 100 feet of equivalent length.

Calculations are approximate and based on HVAC industry standards.

DUCT PIECES

EQUIVALENT

LENGTH X

NUMBER

USED =

EQUIVALENT

LENGTH

6" (15.2cm) Round

Straight **

6" (15.2cm) Round Metal Flex

No Bends **

1 Ft. (0.3m)

1.5 Ft. (0.45m)

Ft. or m

Ft. or m

6" (15.2cm)

90° Elbow

10 Ft. (3m) Ft. or m

6" (15.2cm)

45° Elbow

3¼" x 10" (8.2cm x 25.4cm)

Straight **

3¼" x 10" (8.2cm x 25.4cm)

90° Elbow

3¼" x 10" (8.2cm x 25.4cm)

45° Elbow

3¼" x 10" (8.2cm x 25.4cm)

90° Flat Elbow

3¼" x 10" (8.2cm x 25.4cm) to 6"

(15.2cm) Round Transition 90°

Elbow

6" (15.2cm) Round to 3¼" x 10"

(8.2cm x 25.4cm) Transition

90° Elbow

3¼" x 10" (8.2cm x 25.4cm) to 6"

(15.2cm) Round Transition

6" (15.2cm) Round to 3¼" x 10"

(8.2cm x 25.4cm) Transition

6" (15.2cm) Round Wall Cap with

Damper

3¼" x 10" (8.2cm x 25.4cm) Wall

Cap with Damper

6" (15.2cm) Round Roof Cap

5 Ft. (1.5m)

1 Ft. (0.3m)

10 Ft. (3m)

5 Ft. (1.5m)

10 Ft. (3m)

30 Ft. (9m)

30 Ft. (9m)

5 Ft. (1.5m)

5 Ft. (1.5m)

30 Ft. (9m)

30 Ft. (9m)

30 Ft. (9m)

Ft. or m

Ft. or m

Ft. or m

Ft. or m

Ft. or m

Ft. or m

Ft. or m

Ft. or m

Ft. or m

Ft. or m

Ft. or m

Ft. or m

TOTAL DUCTWORK

** For Straight Round / Rectangular Duct, measure actual linear feet used and then multiply by Equivalent Length shown.

16

Ft. or m