GE JGP656 Duct Fittings, Flexible ducting, Do not use flexible plastic ducting

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Installation instructions.

Duct Fittings

Use the chart at the right to compute maximum permissible lengths for duct runs to outdoors.

NOTE: Do not exceed maximum permissible equivalent lengths!

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 cooktop with a downdraft exhaust mechanism, 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.

 

 

 

Total

 

Equivalent

Number

Equivalent

Duct Pieces

Length*

Used

Length

 

 

 

 

 

 

 

 

 

6round,

1 ft.

 

 

 

 

 

 

 

 

 

 

(per foot

 

 

 

 

 

 

 

 

 

 

straight

length)

feet

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

314x 10

1 ft.

 

 

 

 

 

 

 

 

 

 

(per foot

 

 

 

 

 

 

 

 

 

 

straight

length)

feet

 

 

 

 

 

 

 

 

 

6, 90°

15 ft.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

elbow

 

 

 

 

 

 

 

 

 

 

6, 45°

9 ft.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

elbow

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

314x 10

16 ft.

 

 

 

 

 

 

 

 

 

 

90° elbow

 

 

 

 

 

 

 

 

 

 

314x 10

5 ft.

 

 

 

 

 

 

 

 

 

 

45° elbow

 

 

 

 

 

 

 

 

 

 

314x 10

18 ft.

 

 

 

 

 

 

 

 

 

 

90° flat elbow

 

 

 

 

 

 

 

 

 

 

6round

 

 

 

 

 

 

 

 

 

 

 

to 314x 10

7 ft.

 

 

 

 

 

 

 

 

 

 

transition

 

 

 

 

 

 

 

 

 

 

314x 10

 

 

 

 

 

 

 

 

 

 

 

to 6round

5 ft.

 

 

 

 

 

 

 

 

 

 

transition

 

 

 

 

 

 

 

 

 

 

6round

 

 

 

 

 

 

 

 

 

 

 

to 314x 10

 

 

 

 

 

 

 

 

 

 

 

transition

20 ft.

 

 

 

 

 

 

 

 

 

 

90° elbow

 

 

 

 

 

 

 

 

 

 

314x 10

 

 

 

 

 

 

 

 

 

 

 

to 6round

 

 

 

 

 

 

 

 

 

 

 

transition

12 ft.

 

 

 

 

 

 

 

 

 

 

90° elbow

 

 

 

 

 

 

 

 

 

 

6round wall

21 ft.

 

 

 

 

 

 

 

 

 

 

 

 

 

cap with damper

 

 

 

 

 

 

 

 

 

 

314x 10wall

27 ft.

 

 

 

 

 

 

 

 

cap with damper

 

 

 

 

 

 

 

 

 

 

6round

20 ft.

 

 

 

 

 

 

 

 

 

 

roof cap

 

 

 

 

 

 

 

 

 

 

6round

24 ft.

 

 

 

 

 

 

 

 

 

 

roof vent

 

Total duct run should not exceed 150 ft.

*Actual length of straight duct plus duct fitting equivalent. Equivalent length of duct pieces are based on actual tests conducted by GE Evaluation Engineering and reflect requirements for good venting performance with any downdraft cooktop.

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Contents GE Appliances What to do if YOU Smell GAS Two easy ways to register your appliance GE & You, a Service PartnershipImportant Safety Notice Safety Surface Burners Cook Meat and Poultry THOROUGHLY… Feature Index Explained Features of your cooktopHow to Select Flame Size Using your cooktopHow to Light a Burner Simmer and Power BurnersCookware Wok This WayStove Top Grills Cooktop vent system How to Operate the Vent SystemRaising or Lowering the Vent Control Knobs Care and cleaning of the cooktopGlass Cooktop Grease FiltersBurner Caps Burner HeadsBurner Grates Tools and Parts Needed Installation instructionsParts List If You Smell GasDimensions and Clearances Important Safety InstructionsCut the Opening Preparing the CountertopVenting Options Installation of the downdraft systemOptional Kits Flexible ducting Duct FittingsDo not use flexible plastic ducting Gas Supply Electrical Supply Power Supply LocationsImportant Please read carefully Step Install the Ductwork Step Install Downdraft VentStep Install the Cooktop Step Install the Pressure RegulatorStep Electrical Connections Step Connect PowerStep Assemble Burners, Check Ignition Step Install Filters, Check Operation of DowndraftCheck for proper ignition Before You Call For Service… Customer Service Safety Instructions Customer Service We’ll Cover Any Appliance. Anywhere. Anytime Consumer Product Ownership Registration One Year GE Gas Cooktop WarrantyGE Will Replace, At No Charge To You What GE Will Not CoverGE Answer Center Service Telephone Numbers