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101047
IMPORTANT:
Hold pressure regulator with wrench when connecting it to gas piping
and/or fittings.
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.
Continued
Tee Joint
Reducer
Bushing to
1/8" NPT
1/8" NPT
Plug Tap
Test
Gauge
Connection *
Tee Joint
Pipe
Nipple
Cap
Sediment
Trap
Pressure
Regulator
1/2" NPT
Pipe Nipple
Ground
Union
Joint
Heater
Cabinet
3" Minimum
Note:
Burner bracket
not shown for clarity
Manual Shutoff Valve *
From Gas Meter
(4" W.C. to 10.5" W.C. Pressure)
CONNECTING
TO GAS
SUPPLY
Continued
CHECKING
GAS
CONNECTIONS
Figure 24 - Gas Connection
* An A.G.A. design-certified manual shutoff valve with 1/8" NPT tap is an accept-
able alternative to test gauge connection. Purchase the optional A.G.A. design-
certified manual shutoff valve from your dealer. See Accessories, page 34.
WARNING ICON G 001
WARNING
Test all gas piping and connections for leaks after installing or
servicing. Correct all leaks at once.
WARNING ICON G 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.