Vanguard Heating VSGF-28NTE, VSGF-28PTE Checking GAS Connections, Than, Psig 3.5 kPa

Models: VSGF-28NTE VSGF-28PTE

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INSTALLATION

Continued

CHECKING GAS CONNECTIONS

WARNING: Test all gas piping and connections, internal and external to unit, for leaks after installing or servicing. Correct all leaks at once.

WARNING:Neveruseanopen flame to check for a leak. Apply a noncorrosive leak detection fluid toalljoints.Bubblesformingshow 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 with its appliance main gas valve (control valve) and equipment shut- off valve from gas supply 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 connected.

3.Pressurize supply piping system by either opening propane/LP supply tank valve for propane/LP gas or opening main gas valve located on or near gas meter for natural gas, or by using compressed air.

4.Check all joints of gas supply piping system. Apply noncorrosive leak detection fluid to all joints. Bubbles forming show a leak.

5.Correct all leaks at once.

6.Reconnect fireplace and equipment shutoff valve to gas supply. Check reconnected fittings for leaks.

PRESSURE TESTING FIREPLACE GAS CONNECTIONS

1.Open equipment shutoff valve (see Figure 21).

2.Open main gas valve located on or near gas meter for natural gas or 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 gas control valve (see Figure 22 or 23). Apply noncorrosive leak detection fluid to all joints. Bubbles forming show a leak.

5.Correct all leaks at once.

6.Light fireplace (see Operating Fireplace, page 17). Check all other internal joints for leaks.

7.Turn off fireplace (see To Turn Off Gas to Appliance, page 18).

Open

Equipment

Shutoff

Valve

Closed

Figure 21 - Equipment Shutoff Valve

Equipment

Shutoff

Valve

Gas Meter

Gas Control Valve

Figure 22 - Checking Gas Joints (Natural Gas Only)

Equipment Shutoff Valve

Test Pressures Equal To or Less

Than

Propane/LP

 

 

 

1/2 PSIG (3.5 kPa)

 

Supply Tank

1.

Close equipment shutoff valve (see Figure 21).

 

2.

Pressurize supply piping system by either

 

 

opening propane/LP supply tank valve for

 

 

propane/LP gas or opening main gas valve

 

 

located on or near gas meter for natural gas,

 

 

or using compressed air.

 

 

3.

Check all joints from gas meter for natural or

 

 

propane/LP supply to equipment shutoff valve

 

 

(see Figure 22 or 23). Apply noncorrosive leak

Gas Control Valve

 

detection fluid to all joints. Bubbles forming

 

 

 

show a leak.

 

Figure 23 - Checking Gas Joints

4.

Correct all leaks at once.

 

(Propane/LP Gas Only)

 

 

 

113135-01C

www.desatech.com

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Vanguard Heating VSGF-28NTE, VSGF-28PTE Checking GAS Connections, Test Pressures In Excess Of 1/2 Psig 3.5 kPa, Than