Vanguard Heating VYGF33NRA Checking GAS Connections, Pressure Testing Gas Supply Piping System

®

UNVENTED NATURAL GAS FIREPLACE

INSTALLATION

Continued

CHECKING GAS

CONNECTIONS

WARNING: Test all gas pip- ing and connections for leaks after installing or servicing. Cor- rect 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 (3.5 kPa)

1. Disconnect fireplace and its individual

equipment shutoff valve from gas sup-

ply piping system. Pressures in excess

Test Pressures Equal To or Less Than 1/2 PSIG (3.5 kPa)

1.Close equipment shutoff valve (see Fig- ure 20).

2.Pressurize supply piping system by ei- ther using compressed air or opening main gas valve located on or near gas meter.

3.Check all joints from gas meter to equipment shutoff valve (see Figure 21). Apply mixture of liquid soap and water to gas joints. Bubbles forming show a leak.

4.Correct all leaks at once.

Open

Equipment

Shutoff

Valve

Closed

Figure 20 - Equipment Shutoff Valve

Pressure Testing Fireplace Gas Connections

1.Open equipment shutoff valve (see Fig- ure 20).

2.Open main gas valve located on or near gas meter.

3.Make sure control knob of fireplace is in the OFF position.

4.Check all joints from equipment shutoff valve to gas control valve (see Figure 21). Apply mixture of liquid soap and water to gas joints. Bubbles forming show a leak.

5.Correct all leaks at once.

6.Light fireplace (see Operating Fire- place, pages 14 through 16). Check all other internal joints for leaks.

7.Turn off fireplace (see To Turn Off Gas to Appliance, page 15).

	of 1/2 psig will damage fireplace gas
	regulator.
2.	Cap off open end of gas pipe where
	equipment shutoff valve was con-
	nected.
3.	Pressurize supply piping system by ei-
	ther using compressed air or opening
	main gas valve located on or near gas
	meter.
4.	Check all joints of gas supply piping
	system. Apply mixture of liquid soap
	and water to gas joints. Bubbles form-
	ing show a leak.
5.	Correct all leaks at once.
6.	Reconnect fireplace and equipment
	shutoff valve to gas supply. Check re-
	connected fittings for leaks.

Gas Control Valve

Figure 21 - Checking Gas Joints

Equipment

Shutoff

Valve

Gas Meter

12 105269