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Hot Water Boiler Shutdown Procedure

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Questions and Answers

What is the purpose of opening the blowoff or drain valve on the bottom of the boiler while it is still in operation?

To reduce the boiler's temperature

To remove sediment that may have collected (correct)

To check the automatic make-up water system

To increase the water pressure inside the boiler

Why is it important to observe the flame for irregularity before shutting down the hot water boiler?

To check for leaks in the boiler system

To assess the water chemistry before shutdown

To ensure proper combustion and safety (correct)

To increase the heating efficiency of the boiler

What is the purpose of performing a try lever test on the safety relief valve?

To check for leaks in the boiler system

To regulate the water chemistry in the boiler

To verify that the safety relief valve opens at the correct pressure (correct)

To adjust the burner prior to shutdown

Why is it necessary to test all operating and limit controls before shutting down the hot water boiler?

To ensure the safety and proper functioning of the boiler (B) Signup and view all the answers

What is the purpose of testing the water chemistry before taking a hot water boiler out of service?

To ensure that the water quality meets specified standards (A) Signup and view all the answers

What is the purpose of consulting a certified water treatment professional in maintaining the boiler?

To determine the appropriate chemicals and their concentrations needed to protect the boiler and heating system (C) Signup and view all the answers

What action should be taken if the boiler waterside must be opened for maintenance or inspection?

Close the valve in the line connecting the boiler with the expansion tank if it shares an expansion tank with other boilers (B) Signup and view all the answers

Why is it beneficial to keep hot water boilers full of chemically treated water during a summer layup?

To reduce chemical use and minimize impurities introduced to the heating system (A) Signup and view all the answers

What precaution should be taken if the fireside is re-closed after being cleaned and inspected?

Ensure the draft fan damper is shut to prevent humid air from passing through the furnace and up the chimney (A) Signup and view all the answers

When should accurate water testing and addition of chemicals be carried out for a boiler layup?

Prior to shutting off the boiler and circulating pumps (D) Signup and view all the answers