When should a boiler be purged?
A. After light-off
B. After a misfire
C. After an increase of burner flame
D. After shutdown
A. Incorrect. Purging should occur before light-off and after misfire or loss of burner flame.
B. Correct. Purging should occur before light-off and after misfire or loss of burner flame.
C. Incorrect. Purging should occur before light-off and after misfire or loss of burner flame.
D. Incorrect. Purging should occur before light-off and after misfire or loss of burner flame.
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