Desa (V)T36EPA Continued, Pressure Testing Gas Supply Piping System, 1/2 PSIG 3.5 kPa

Models: (V)T36EPA

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Pressure Testing Gas Supply

Fireplace

Installation

Continued

Pressure Testing Gas Supply

Piping System

Test Pressures In Excess Of 1/2 PSIG

(3.5 kPa)

1. Disconnect fireplace and its individual equip- ment shutoff valve from gas supply piping system. Pressures in excess of 1/2 psig (3.5 kPa) 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 fireplace or opening main gas valve located on or near gas meter for natural gas fireplace, or 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. Correct all leaks at once.

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

Test Pressures Equal To or Less Than

1/2 PSIG (3.5 kPa)

1. Close equipment shutoff valve (see Figure 33).

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

3. Check all joints from propane/LP supply tank or gas meter to equipment shutoff valve (see Figure 34 or 35). Apply noncorrosive leak detection fluid to all joints. Bubbles forming show a leak. Correct all leaks at once.

Equipment

Open

Shutoff Valve

 

Closed

Figure 33 - Equipment Shutoff Valve

 

Equipment

Propane/LP

Shutoff Valve

Supply Tank

 

 

Gas Valve

Figure 34 - Checking Gas Joints for

Propane/LP Gas Fireplace

Equipment Shutoff Valve

Gas

Meter

Gas Valve

Figure 35 - Checking Gas Joints for

Natural Gas Fireplace

Pressure Testing Fireplace Gas

Connections

1. Open equipment shutoff valve (see Figure 33).

2. Open main gas valve located on or near gas meter for natural gas or open supply tank valve for propane/LP gas.

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 Figure 34 or 35). Apply noncorrosive leak detection fluid to all joints. Bubbles forming show a leak. Correct all leaks at once.

5. Light fireplace (see Operating Fireplace, page

28). Check all other internal joints for leaks.

6. Turn off fireplace (see To Turn Off Gas to Appliance, page 29).

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Desa (V)T36EPA Continued, Pressure Testing Gas Supply Piping System, Test Pressures In Excess Of 1/2 PSIG 3.5 kPa