CONNECTING | IMPORTANT: Hold pressure regulator with wrench when connecting it to gas piping and/ | ||||
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TO GAS |
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| Pressure |
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SUPPLY |
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| Regulator |
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Continued |
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| 3/8" NPT |
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| Pipe Nipple |
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| Heater |
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| Ground Joint Union | Cabinet |
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| Tee Joint | Manual |
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| Test |
| Reducer | Shutoff |
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| Valve * |
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| Gauge |
| Bushing to |
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| Connection * | 1/8" NPT | Typical Inlet Pipe from | ||
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| 1/8" NPT | Gas Meter | |
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| (4" W.C. to | ||
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| Plug Tap | ||
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| 10.5" W.C. Pressure) | |
| Sediment | Tee Joint |
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| Pipe |
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| Trap |
| 3" Minimum |
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| Nipple |
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| Cap |
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| Figure 13 - Gas Connection |
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*An A.G.A.
CHECKING | WARNING ICONG 001 WARNING | |
GAS | ||
Test all gas piping and connections for leaks after installation or | ||
CONNECTIONS | servicing. Correct all leaks at once. | |
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| WARNING ICONG 001 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. | |
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PRESSURE TESTING GAS SUPPLY PIPING SYSTEM
Test Pressures In Excess Of 1/2 PSIG
1.Disconnect heater and its individual manual 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 manual shutoff valve was connected.
3.Pressurize supply piping system by either using compressed air or opening main gas valve located on or near gas meter.
Continued 15
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