Checking GAS Connections

IMPORTANT: Hold pressure regulator with wrench when connecting it to gas piping and/or fittings.

Pressure

Regulator

1/2" NPT Pipe Nipple

		Tee Joint
	Test	Reducer
	Gauge	Bushing to
	Connection *	1/8" NPT
	Connection *
		1/8" NPT
		Plug Tap
		Tee Joint
	Sediment	Pipe
	Trap	Pipe
	Trap	Nipple
		Cap

Note: Burner bracket not shown for clarity

	Ground Joint	Heater
	Ground Joint	Cabinet
	Union	Cabinet
	Union
		Manual
		Shutoff
		Valve *

From Gas Meter

(4" W.C. to 10.5" W.C. Pressure)

3" Minimum

Figure 10 - 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 23.

!WARNING

Test all gas piping and connections for leaks after installing or servicing. Correct all leaks at once.

!WARNING

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.

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.

3.Pressurize supply piping system by either using compressed air or opening main gas valve located on or near gas meter.

Continued 11

VGN30 specifications

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The VGN30 is equipped with a robust stainless steel heat exchanger that enhances durability and ensures long-lasting performance. This material is resistant to corrosion and wear, allowing the unit to maintain peak efficiency over time. Furthermore, the heat exchanger's design promotes optimal heat transfer, ensuring that spaces are heated quickly and evenly.

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