Procom MN100HPA Spécifications télécharger pdf (Page 13)

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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 a leak. Apply a mixture of liquid soap and water to all

joints. Bubbles forming show a leak. Correct all leaks at once.

PRESSURE TESTING GAS SUPPLY PIPING SYSTEM

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

1. Disconnect heater with its appliance main gas valve (control valve) and equipment shutoff valve

from gas supply piping 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 either using compressed air or opening gas supply valve.

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

and water to gas joints. Bubbles forming indicates a leak.

5. Correct all leaks at once.

6. Reconnect heater and equipment shutoff valve to gas supply. Check reconnected ttings for leaks.

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

1. Close equipment shutoff valve (see Figure 15).

2. Pressurize supply piping system by either using

compressed air or opening natural supply tank valve.

3. Check all joints from gas meter to equipment shutoff

valve (see Figure 15). Apply mixture of liquid soap and

water to gas joints. Bubbles forming show a leak.

Figure 15 - Equipment Shutoff Valve

Figure 16 - Fuel Supply

4. Correct all leaks at once.

Pressure Testing Heater Gas Connections

1. Open equipment shutoff valve (see Figure 16).

2. Open gas supply tank valve.

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

4. Remove front panel

5. Check all joints from equipment shutoff valve to con

trol valve (see Figure 16). Apply mixture of liquid soap and

water to gas joints. Bubbles forming show a leak.

6. Correct all leaks at once.

7. Light heater (see

Operation Heater). Check all other internal joints

for leaks.

8. Turn off heater (see “To Turn Off Gas Appliance”).

9. Replace lower front panel.

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Procom MN100HPA Spécifications Page 13