Pressure Testing

Alternative Piping Methods To Connect Appliance To Gas Supply

A TRAINED SERVICE TECHNICIAN OR GAS APPLIANCE INSTALLER MUST MAKE THE GAS SUPPLY CONNECTION. Leak testing of the appliance shall be conducted by the installer according to the instructions given.

Unless prohibited by local codes or ordinances, a new A.G.A. -- Certified, flexible metal appliance connector may be used to connect this appliance to its gas supply. The connector must be no more than 5 feet in length. Per figure 5, use appropriate flare union adapter at each end of the flexible connector. If a flexible connector is used assure that both the appliance pressure regulator and manual shut-off valve are joined solidly to other permanent hard piping (either gas supply or the appliance manifold) so as to be physically stationary. See illustrations below.

The appliance must be isolated from the gas supply piping system by closing its individual manual shut-off valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 pounds per square inch (3.5 kPa).

This appliance, as well as its individual shut-off valve, must be disconnected from the gas supply piping system during any pressure testing of the system at test pressures in excess of 1/2 pounds per square inch (3.5 kPa).

When checking appliance regulator function, make certain pressure of natural gas supply is between 6 and 14 inches of water column or, if converted for LP gas, between 11 and 14 inches of water column.

ILLUSTRATIVE ALTERNATIVE PIPING

CAUTION: Do not attempt to attach the flexible connector directly to an external pipe thread. Connection requires flare union adapters.

I M P O R T A N T

Apply a non-corrosive leak detection fluid to all joints and fittings in the gas connection between the supply line shut-off valve and the range. Include gas fittings and joints in the range if connections were disturbed during installation. Check for leaks! Bubbles appearing around fittings and connections will indicate a leak. If a leak appears, turn off supply line gas shut-off valve, tighten connections, turn on the supply line gas shut off valve, and retest for leaks. Never test for gas leaks with an open flame.

Manifold

Entrance

Appliance Pressure Regulator, Supplied (Observe directionality of Gas Flow)

Flare Union Adaptor

1/2″ N.P.T. Flexible Appliance Connector (5 ft. max.)

3/8″ N.P.T.

Flare Union Elbow

Adaptor

3/8″ N.P.T. Flexible Appliance Connector (5 ft. max.)

	Flare Union Adaptor	Flare Union Adaptor
		Flare Union Adaptor
	Gas Shut-Off Valve	Appliance Pressure
	Gas Shut-Off Valve	Regulator, Supplied
		Regulator, Supplied
		(Observe
		directionality of Gas
	1/2″ N.P.T. Pipe	Flow)
	1/2″ N.P.T. Pipe
	(Stationary Supply Pipe)
		1/2″ N.P.T. Pipe
		Nipple
		Gas Shut-Off Valve
		1/2″ N.P.T. Pipe
		(Stationary Supply
	FIGURE 4	Pipe)
	FIGURE 4