Desa VP1600ITB, VP2200ITB Installation, Continued, Pressure Testing Gas Supply Piping System

Models: VP1600ITB VP2200ITB

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Pressure Testing Gas Supply Piping System

OWNER’S MANUAL

INSTALLATION

Continued

CHECKING GAS

CONNECTIONS

Pressure Testing Heater Gas Connections WARNING: Test all gas pip- ing and connections for leaks after installing or servicing. Cor- rect all leaks at once.

Manual backgroundWARNING: 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.

Manual background CAUTION: Make sure external regulator has been installed be- tween propane/LP supply and heater. See Connecting to Gas Supply on page 10.

Pressure Testing Gas Supply Piping System

Test Pressures In Excess Of 1/2 PSIG (3.5 kPa)

1.Disconnect appliance with its appliance main gas valve (control valve) and equip- ment shutoff valve from gas supply pip- ing system. Pressures in excess of 1/2 psig will damage heater regulator.

2.Cap off open end of gas pipe where equipment shutoff valve was connected.

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 mixture of liquid soap and water to gas joints. Bubbles form- ing show a leak.

5.Correct all leaks at once.

6.Reconnect heater and equipment shutoff valve to gas supply. Check re- connected fittings for leaks.

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

1.Close equipment shutoff valve (see Fig- ure 15).

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 tank to equipment shutoff valve (see Figure 16). Apply mixture of liquid soap and water to gas joints. Bubbles forming show a leak.

4.Correct all leaks at once.

Pressure Testing Heater Gas Connections

1.Open equipment shutoff valve (see Fig- ure 15).

2.Open propane/LP supply tank valve.

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

4.Check all joints from equipment shutoff valve to control valve (see Figure 16). Apply mixture of liquid soap and wa- ter to gas joints. Bubbles forming show a leak.

5.Correct all leaks at once.

6.Light heater (see Operating Heater, pages 12 and 13). Check the rest of the internal joints for leaks.

7.Turn off heater (see To Turn Off Gas to Appliance, page 13).

8.Replace front panel.

Open

Equipment

Shutoff

Valve

Closed

Figure 15 - Equipment Shutoff Valve

Control Valve Location

Propane/LP

Supply Tank

Equipment

Shutoff

Valve

Figure 16 - Checking Gas Joints

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Desa VP1600ITB Installation, Continued, Pressure Testing Gas Supply Piping System, Pressure Testing Heater Gas Connections