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Questions and Answers
What type of ignition systems do larger plants commonly have for their boilers?
What type of ignition systems do larger plants commonly have for their boilers?
What is the sequence of steps followed by all ignition systems for boilers?
What is the sequence of steps followed by all ignition systems for boilers?
What is the function of semi-automatic systems in controlling the boiler's ignition sequence?
What is the function of semi-automatic systems in controlling the boiler's ignition sequence?
What is the difference between fully automatic and semi-automatic burner management systems?
What is the difference between fully automatic and semi-automatic burner management systems?
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Why do semi-automatic systems require interaction with trained operators?
Why do semi-automatic systems require interaction with trained operators?
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What is the purpose of a pre-purge in the ignition sequence of boilers?
What is the purpose of a pre-purge in the ignition sequence of boilers?
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Which type of boiler systems automatically recycle on call for heat, regardless of operator attendance?
Which type of boiler systems automatically recycle on call for heat, regardless of operator attendance?
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What is the purpose of the proof of closure switches mentioned in the text?
What is the purpose of the proof of closure switches mentioned in the text?
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Which valve ensures no gas can enter the furnace when the boiler burner is off?
Which valve ensures no gas can enter the furnace when the boiler burner is off?
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What does the local burner control panel include?
What does the local burner control panel include?
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What must be satisfied before the ignition sequence can begin?
What must be satisfied before the ignition sequence can begin?
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What happens during startup with a boiler master on manual control?
What happens during startup with a boiler master on manual control?
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When should the operator press the IGNITION START pushbutton?
When should the operator press the IGNITION START pushbutton?
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What must be done if SSOV 'N' is of the magnetic latching valve style?
What must be done if SSOV 'N' is of the magnetic latching valve style?
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What is required for modern burners that do not have semi-automatic magnetic latching SSOVs?
What is required for modern burners that do not have semi-automatic magnetic latching SSOVs?
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