Install the Ductwork

Installation

G a s Downdraf t Cooktop

Step2

•The downdraft blower system is designed for use with 3-1/4" x 10" ductwork. It can be transitioned to 6" round.

•Ductwork MUST be vented to the outside – never into a crawl space, attic or other enclosed space.

•6" PVC duct should be used when installing under a concrete slab.

Note: Local building code must be followed for installation and in specifying approved type and schedule of PVC duct used.

•DO NOT USE flexible plastic ducting.

•Always use appropriate roof or wall cap with damper. Laundry type wall caps should never be used.

•Use the straightest duct run possible.

•For satisfactory performance the duct run should not exceed 150 ft. or its equivalent

length when bends or various fittings are used. Refer to the table of equivalent lengths to calculate your installation.

•Install ductwork so the piece of duct nearest the downdraft unit slots INTO the next piece of the duct. Secure the joints with self- tapping screws and apply duct tape around the joints to ensure an airtight seal.

Duct Tape

Over Seam and Screw

Air

Screw

Step3

Install

Pressure

Regulator

•Install the supplied pressure regulator and nipple in the gas line as close to the cooktop inlet as possible. Allowances for ventilation ducting may be necessary.

–Make sure the regulator is installed in the right direction.

•Install a manual shut-off valve in the gas line in an easily accessible location.

Note: Instead of using solid piping to connect to pressure regulator, an approved flexible metal appliance connector may be used between the pipe stub and the shut-off valve and the pressure regulator, if local codes permit.

–Appropriate flare nuts and adapters are required at each end of the flexible connector.

•Turn on the gas. Check for leaks using a liquid leak detector at all joints in the system (the pressure test nipple is adjacent to the gas inlet pipe on the rear right hand side of the cooktop bottom.

CAUTION Do not use a flame to check for

gas leaks.

PRUDENCE IL NE FAUT PAS UTILISER DE FLAMME POUR VÉRIFIER S’IL Y A DES FUITES.

Regulator

Solid Piping or Flexible Connector

Shut-Off

Valve

Pipe Stub

IMPORTANT: Disconnect the cooktop and the individual shut-off valve from the gas supply piping system during any pressure testing of that system at test pressures greater than 1/2 psig. Isolate the cooktop from the gas supply piping system by closing the individual manual shut-off valve to the cooktop during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 psig.