Checking piping connections Check
Check to see that adequate gas pressure is present at the inlet gas supply test port.
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Connect a manometer and open the gas control valve. Requirements are minimum 4" w.c
and maximum 14" w.c.
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Check that there are no gas leaks.
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All connections are pressure tested and leak free.
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All piping flushed to ensure all air is removed.
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Check valve is installed and the external pump is flowing in the correct direction.
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Checking venting connections Check
All connections are pressure tested and leak free.
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All vent pipe is sized correctly and joints are sealed.
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Powering on the boiler Check
Perform a final check of electrical wiring, and provide power to the boiler to initialize
operation.
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Warning
Fill the condensate trap with water before you first fire the boiler to prevent exhaust
fumes from entering the room. Never operate the boiler unless the trap is filled with
water. Failure to comply will result in severe personal injury or death.
Section: Before operating the boiler