Vanguard Heating VSGF28PTC Checking GAS Connections, Pressure Testing Gas Supply Piping System

®

UNVENTED PROPANE/LP 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 noncorrosive leak detection fluid 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)

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

1.Close equipment shutoff valve (see Fig- ure 21).

2.Pressurize supply piping system by ei- ther using compressed air or opening propane/LP supply tank valve.

3.Check all joints from propane/LP sup- ply to equipment shutoff valve (see Fig- ure 22). Apply noncorrosive leak detec- tion fluid to all joints. Bubbles forming show a leak.

4.Correct all leaks at once.

Open

Equipment

Shutoff

Valve

Closed

Figure 21 - Equipment Shutoff Valve

Pressure Testing Fireplace Gas Connections

1.Open equipment shutoff valve (see Fig- ure 21).

2.Open propane/LP supply tank valve.

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

4.Check all joints from equipment shutoff valve to thermostat gas valve (see Fig- ure 22). Apply noncorrosive leak de- tection fluid to all joints. Bubbles form- ing show a leak.

5.Correct all leaks at once.

6.Light fireplace (see Operating Fire- place, pages 14 through 17). Check all other internal joints for leaks.

7.Turn off fireplace (see To Turn Off Gas to Appliance, page 15 [thermostat-con- trolled models] or page 16 [manually- controlled models]).

1.Disconnect fireplace with its appliance main gas valve (control valve) and equipment shutoff valve from gas sup- ply pipping. Pressures in excess 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 propane/LP supply tank valve.

4.Check all joints of gas supply piping system. Apply noncorrosive leak detec- tion fluid to all 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.

Equipment Shutoff Valve

Propane/LP

Supply Tank

Gas Control Valve

Figure 22 - Checking Gas Joints

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