Vanguard Heating VMH26TN installation manual Connecting To Gas Supply, Gas Connection

CONNECTING TO GAS SUPPLY

16

NOTICE

A qualified service person must connect fireplace to gas supply. Follow all local codes.

WARNING

WARNING ICON G 001

Never connect fireplace to private (non-utility) gas wells. This gas is commonly known as wellhead gas.

IMPORTANT: Check gas line pressure before connecting fireplace to gas line. Gas line pressure must be no greater than 14 inches of water. If gas line pressure is higher, fireplace regulator damage could occur.

CAUTION

WARNING ICON G 001

Use only new, black iron or steel pipe. Internally-tinned copper tubing may be used in certain areas. Check your local codes. Use pipe of 1/2" or greater diameter to allow proper gas volume to fireplace. If pipe is too small, undue loss of pressure will occur.

Installation must include a manual shutoff valve, union, and plugged 1/8" NPT tap. Locate NPT tap within reach for test gauge hook up. NPT tap must be upstream from fireplace (see Figure 16).

Apply pipe joint sealant lightly to male threads. This will prevent excess sealant from going into pipe. Excess sealant in pipe could result in clogged fireplace valves.

CAUTION

WARNING ICON G 001

Use pipe joint sealant that is resistant to liquid petroleum (LP) gas.

Install sediment trap in supply line as shown in Figure 16. Locate sediment trap where it is within reach for cleaning. Locate sediment trap where trapped matter is not likely to freeze. A sediment trap traps moisture and contaminants. This keeps them from going into fireplace controls. If sediment trap is not installed or is installed wrong, fireplace may not run properly.

A.G.A. Design-Certified Manual Shutoff Valve

With 1/8" NPT Tap*

Approved

Flexible

Gas Line

	From Gas Motor
3" Minimum	(5" W.C. to 10.5" W.C.
	Pressure)
		Sediment
	Tee Joint	Trap
	Pipe Nipple
	Cap
Figure 16 - Gas Connection

*Purchase the optional A.G.A. design-certified manual shutoff valve from your dealer. See Accessories, page 29.

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