4.All above ground gas piping upstream from manual
C.Pressure test. The boiler and its gas connection must be leak tested before placing boiler in operation.
1.Protect boiler gas control valve. For all testing over ½ psig, boiler and its individual shutoff valve must be disconnected from gas supply piping. For testing at ½ psig or less, isolate boiler from gas supply
piping by closing boiler’s individual manual shutoff valve.
2.Locate leaks using approved combustible gas detector, soap and water, or similar nonflammable solution.
DANGER
Do not use matches, candles, open flames or other ignition source to check for leaks.
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