Procom PCD18T Installationsanleitung PDF herunterladen (Seite 15)

CHECKING GAS CONNECTIONS

WARNING: Test all gas piping and connections for leaks after installing or servicing. Correct all leaks at once.

WARNING: Never use an open ame to check for leaks. Apply a mixture of liquid soap and water to all

joints. Bubbles forming indicate a leak. Correct all leaks immediately.

Figure 18- Equipment Shutoff Valve

Figure 19-A Checking Gas Joints for NG

Figure 19-B Checking Gas joints For LP

Pressure Testing Gas Supply Piping System

Test Pressure in Excess Of 1/2 PSIQ (3.5 K Pa)

1. Disconnect appliance with its appliance main gas valve (control valve)

and equipment shutoff valve from gas supply piping system. Pressure

in excess of 1/2 psig will damage heater regulator.

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

nected.

3. Pressurize supply piping system by either using compressed air or

opening main gas valve located on or near gas tank.

4. Check all joints of gas supply piping system. Apply a mixture of liquid

soap and water to gas joints. Bubbles forming indicate a leak.

5. Correct all leaks immediately.

6. Reconnect heater and equipment shutoff valve to gas supply. Check

reconnected ttings for leaks.

Test Pressures Equal To or Less Than 1/2 PSIQ

1. Close equipment shutoff valve (see Figure 18).

2. Pressurize supply piping system by either using com pressed air or

opening main gas valve located on or near gas supply tank.

3. Check all joints from gas tank to equipment shutoff valve (see Figure

19). Apply mixture of liquid soap and water to gas joints. Bubbles form-

ing show a leak.

4. Correct all leaks immediately.

Pressure Testing Heater Gas Connections

1. Open equipment shutoff valve (see Figure 18).

2. Open main gas valve located on or near gas tank.

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 19). Apply mixture of liquid soap and water to gas joints. Bubbles

forming show a leak.

5. Correct all leaks immediately.

6 Light heater (see Operation, pages 17 through 19). Check the rest of

the internal joints for leaks.

7. Turn off heater (see “To Turn Off Gas to Appliance”, page 18).

Fuel

Supply

Fuel

Supply

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