Burnham SCG User Manual
Page 52
52
4. All above ground gas piping upstream from manual
shut-off valve must be electrically continuous and
bonded to a grounding electrode. Do not use gas
piping as grounding electrode. Refer to National
Electrical Code, NFPA 70.
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 nonfl ammable
solution.
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