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Questions and Answers
What should be done if the expansion tank level is high?
What should be done if the expansion tank level is high?
- Close the expansion tank vent and drain, and open the expansion tank isolation valve.
- Isolate the expansion valve from the system.
- Vent and drain the expansion tank. (correct)
- Open the expansion tank drain valve.
What should be done to ensure proper heat transfer from the heater due to entrained air?
What should be done to ensure proper heat transfer from the heater due to entrained air?
- Push the reset buttons for low water fuel cutoff and high limit control.
- Set the control switch on the panel to low for boilers with high-low firing rate control.
- Check the fuel and fresh air supplies.
- Start the primary heating loop circulator pump. (correct)
What should be done with the boiler control switch on the panel before startup?
What should be done with the boiler control switch on the panel before startup?
- Set the manual-automatic switch to manual for boilers with fully modulating firing rate control.
- Keep it in the off position. (correct)
- Set it to low for boilers with a high-low firing rate control.
- Push the reset buttons for low water fuel cutoff and high limit control.
What needs to be done if mechanical reset devices are equipped for low water fuel cutoff or high limit control?
What needs to be done if mechanical reset devices are equipped for low water fuel cutoff or high limit control?
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What should be done if multiple boilers share a common expansion tank?
What should be done if multiple boilers share a common expansion tank?
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