Desa RFP28TB installation manual Connecting, To GAS, Supply, Checking GAS, Connections

CONNECTING	IMPORTANT:	Hold pressure regulator with wrench when connecting it to gas piping
TO GAS	and/or fittings.
				Note: Burner bracket
SUPPLY
		Pressure		not shown for clarity
Continued		Regulator
	1/2" NPT
	Pipe Nipple
			Ground	Heater
			Union	Cabinet
		Tee Joint	Joint
	Test	Reducer		Manual
				Shutoff
	Gauge	Bushing to
	Connection *	1/8" NPT		Valve *
		1/8" NPT		From
				External
		Plug Tap
				Regulator
		Tee Joint	(11" W.C. to 14" W.C. Pressure)
	Sediment	Pipe	3" Minimum
	Trap	Nipple
		Cap	Figure 25 - Gas Connection

*An A.G.A. design-certified manual shutoff valve with 1/8" NPT tap is an acceptable alternative to test gauge connection. Purchase the optional A.G.A. design-certified manual shutoff valve from your dealer. See Accessories, page 34.

CHECKING	WARNING ICONG 001WARNING
GAS
	Test all gas piping and connections for leaks after installing or
CONNECTIONS
	servicing. Correct all leaks at once.
	WARNING ICONG 001WARNING
	Never use an open flame to check for a leak. Apply a mixture of
	liquid soap and water to all joints. Bubbles forming show a leak.
	Correct all leaks at once.
	WARNING ICONG 001CAUTION
	Make sure external regulator has been installed between propane/
	LP supply and heater. See guidelines under Connecting to Gas
	Supply, page 20.

PRESSURE TESTING GAS SUPPLY PIPING SYSTEM

Test Pressures In Excess Of 1/2 PSIG

1.Disconnect heater and its individual manual shutoff valve from gas supply piping system. Pressures in excess of 1/2 psig will damage heater regulator.

2.Cap off open end of gas pipe where manual shutoff valve was connected.

Continued 21

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