IMPORTANT: Hold pressure regulator with wrench when connecting it to gas piping and/or fittings.
3/8" NPT Pipe Nipple
Ground Joint Union
Manual 
Shutoff Valve *
From Gas Meter (4" W.C. to 
10.5" W.C. Pressure)
3" Minimum
Pressure
Regulator
Heater
Cabinet
Tee Joint |
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Reducer |
| Test | ||
Bushing to |
| Gauge | ||
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1/8" NPT | Connection * | |||
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1/8" NPT |
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Plug Tap |
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Tee |
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Joint |
| Sediment | |
Pipe |
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| Trap | ||
Nipple |
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Cap |
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CHECKING GAS CONNECTIONS
10
Figure 10 - Gas Connection
*An A.G.A.
!WARNING
Test all gas piping and connections for leaks after installing or servicing. Correct 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.
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