Desa RFP30TA installation manual Checking GAS Connections, Pressure Testing Heater Gas Connections

Models: RFP30TA

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OWNER’S MANUAL

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.

CAUTION: Make sure exter- nal regulator has been installed between propane/LP supply and heater. See guidelines under Con-

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 propane/LP supply tank valve.

3.Check all joints from propane/LP sup- ply tank 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

Pressure Testing Heater Gas Connections

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

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 thermostat gas valve (see Fig- ure 21). Apply mixture of liquid soap and water to gas joints. Bubbles form- ing show a leak.

5.Correct all leaks at once.

6.Light heater (see Operating Heater, pages 14 and 15). Check all other in- ternal joints for leaks.

7.Turn off heater (see To Turn Off Gas to Appliance, page 14).

8.Replace front panel.

necting to Gas Supply, page 12.

Pressure Testing Gas Supply Piping System

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

1.Disconnect appliance with its appli- ance main gas valve (control valve) and equipment shutoff valve from gas supply piping system. Pressures in ex- cess 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.

Figure 20 - Equipment Shutoff Valve

Thermostat Gas

Valve Location

Propane/LP

Supply Tank

Equipment

Shutoff

Valve

Figure 21 - Checking Gas Joints

Continued

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Desa RFP30TA Checking GAS Connections, Pressure Testing Heater Gas Connections, Pressure Testing Gas Supply Piping System