4BE3.5 U4 C1 Obj 5 EMH
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EASY What is the first step in the general startup preparation of a steam boiler?

  • Ensure that fuel is available to the stop valves in the pilot and main burner supply lines.
  • Review the manufacturer’s recommendations for the startup of the boiler.
  • Verify that the boiler control switch on the panel is in the “off” position.
  • Make sure the boiler has a valid inspection certificate. (correct)

    • What should be done with the suction and discharge valves on the vacuum or condensate pumps?

  • Leave them in the auto position.
  • Close them to prevent water flow.
  • Open them to warm up the piping system. (correct)
  • Open them when the boiler is started.

    • What should be done with the fuel supply lines?

  • Close the stop valve in the return line.
  • Shut off the fuel supply to the boiler.
  • Open the stop valve in the return line. (correct)
  • Check the fuel pressure gauge.

    • What should be done with the fresh air supply to the boiler room?

    <p>Ensure it is unobstructed.</p> Signup and view all the answers

    What should be done with the pressure settings of the operating and high limit controls?

    <p>Check them to ensure they are set correctly.</p> Signup and view all the answers

    What is the purpose of the low water fuel cut-off and/or high limit control?

    <p>To shut off the fuel supply if the water level is too low.</p> Signup and view all the answers

    What should be done with the boiler control switch on the panel?

    <p>Turn it to the “off” position.</p> Signup and view all the answers

    What is the final step before starting the boiler?

    <p>Check the boiler and auxiliary equipment thoroughly.</p> Signup and view all the answers

    MEDIUM Why is it essential to review the manufacturer's recommendations for the startup of the boiler?

    <p>To understand the specific requirements for the boiler's startup procedure</p> Signup and view all the answers

    What should be done with the water supply to the feeder valve?

    <p>Opened to allow water to flow into the boiler</p> Signup and view all the answers

    Why is it important to ensure the fresh air supply to the boiler room is unobstructed?

    <p>To ensure proper combustion and ventilation</p> Signup and view all the answers

    What is the purpose of setting the control switch on the panel to 'low' on boilers with a high-low firing rate control?

    <p>To reduce the boiler's firing rate</p> Signup and view all the answers

    Why is it essential to check the pressure settings of the operating and high limit controls?

    <p>To prevent the boiler from overheating</p> Signup and view all the answers

    What should be done with the boiler control switch on the panel before startup?

    <p>Set to 'off' to ensure the boiler is ready for startup</p> Signup and view all the answers

    Why is it important to ensure the deaerator and feedwater make-up system are filled to the operating/startup levels?

    <p>To ensure a smooth startup and efficient operation</p> Signup and view all the answers

    What is the purpose of pushing the reset button on the low water fuel cut-off and/or high limit control?

    <p>To reset the safety controls after checking the boiler and auxiliary equipment</p> Signup and view all the answers

    HARD What is the primary purpose of reviewing the manufacturer's recommendations for boiler startup?

    <p>To understand specific startup procedures</p> Signup and view all the answers

    Why is it essential to ensure the deaerator and feedwater make-up system are filled to the operating/startup levels?

    <p>To ensure proper boiler operation and safety</p> Signup and view all the answers

    What is the purpose of setting the manual-automatic switch to 'manual' on boilers with fully modulating firing rate control?

    <p>To allow for manual control during startup</p> Signup and view all the answers

    Why is it important to ensure the fresh air supply to the boiler room is unobstructed?

    <p>To reduce the risk of explosion</p> Signup and view all the answers

    What is the purpose of pushing the reset button on the low water fuel cut-off and/or high limit control?

    <p>To reset the control system after a trip</p> Signup and view all the answers

    What should be done with the fuel supply lines before startup?

    <p>Open the stop valves to ensure fuel availability</p> Signup and view all the answers

    What is the purpose of checking the pressure settings of the operating and high limit controls?

    <p>To ensure safety and prevent overpressure</p> Signup and view all the answers

    Why is it essential to ensure the boiler has a valid inspection certificate?

    <p>To comply with regulatory requirements</p> Signup and view all the answers

    Match the following steps with the correct actions during the general startup preparation of a steam boiler:

    <p>Step 1 = Ensure the boiler has a valid inspection certificate Step 3 = Open the suction and discharge valves on the vacuum or condensate pumps Step 5 = Ensure the fuel supply lines are available to the stop valves Step 7 = Verify that the fresh air supply to the boiler room is unobstructed</p> Signup and view all the answers

    Match the following components with the correct actions during the general startup preparation of a steam boiler:

    <p>Deaerator = Filled to the operating/startup levels Feedwater make-up system = Verified to be ready to operate Fuel pump = Checked to ensure it is operating within expected range Vacuum or condensate pumps = Set in the 'auto' or 'on' position</p> Signup and view all the answers

    Match the following controls with the correct actions during the general startup preparation of a steam boiler:

    <p>Boiler control switch = Set to 'off' position Manual-automatic switch = Set to 'manual' on boilers with fully modulating firing rate control High limit control = Checked to ensure pressure settings are correct Flame control switch = Set to 'low' on boilers with fully modulating firing rate control</p> Signup and view all the answers

    Match the following systems with the correct actions during the general startup preparation of a steam boiler:

    <p>Fuel system = Verified to ensure fuel is available to the stop valves Water supply system = Opened to the feeder valve Steam system = Verified to ensure all parameters are within expected range Air supply system = Verified to ensure it is unobstructed</p> Signup and view all the answers

    Match the following steps with the correct reasons during the general startup preparation of a steam boiler:

    <p>Reviewing the manufacturer's recommendations = To ensure the boiler is started correctly Checking the pressure settings of the operating and high limit controls = To ensure the boiler operates safely Ensuring the fresh air supply to the boiler room is unobstructed = To prevent overheating Pushing the reset button on the low water fuel cut-off and/or high limit control = To reset the system after a shutdown</p> Signup and view all the answers

    Match the following components with the correct reasons for checking during the general startup preparation of a steam boiler:

    <p>Deaerator = To ensure it is filled to the operating/startup levels Fuel pump = To ensure it is operating within expected range Low water fuel cut-off and/or high limit control = To ensure it is reset after a shutdown Feedwater make-up system = To ensure it is ready to operate</p> Signup and view all the answers

    Match the following steps with the correct purposes during the general startup preparation of a steam boiler:

    <p>Setting the control switch on the panel to 'low' = To reduce the firing rate Opening the suction and discharge valves on the vacuum or condensate pumps = To warm up the piping system Ensuring the fuel supply lines are available to the stop valves = To ensure the boiler has a fuel supply Verifying that the boiler has a valid inspection certificate = To ensure the boiler is safe to operate</p> Signup and view all the answers

    Match the following systems with the correct purposes during the general startup preparation of a steam boiler:

    <p>Fuel system = To provide fuel to the boiler Water supply system = To fill the boiler with water Steam system = To distribute steam to the system Air supply system = To provide oxygen for combustion</p> Signup and view all the answers

    Study Notes

    Preparing to Start a Steam Boiler

    • Ensure the boiler has a valid inspection certificate, and it has been properly checked, cleaned, filled with water, closed, and tightened, with all auxiliary systems prepared.
    • Review the manufacturer's recommendations for startup to ensure compliance with specific guidelines.

    Preparing Piping and Fuel Systems

    • If warming up the piping system with the boiler, open suction and discharge valves on vacuum or condensate pumps, and set pump switches to "auto" or "on".
    • Open the water supply to the feeder valve, if equipped, and ensure the deaerator and feedwater make-up system are filled to operating levels.
    • Ensure fuel availability to stop valves in pilot and main burner supply lines, and open the return line stop valve if using fuel oil.
    • Verify that fuel lines, filter, and fuel pump are operating as expected, with all parameters within expected range.

    Final Checks

    • Ensure unobstructed fresh air supply to the boiler room.
    • Check pressure settings of operating and high limit controls.
    • Verify the boiler control switch on the panel is in the "off" position.
    • Set the control switch to "low" on boilers with high-low firing rate control, and to "manual" and low-fire position on boilers with fully modulating firing rate control.
    • If equipped with a mechanical reset, push the reset button on the low water fuel cut-off and/or high limit control.

    Preparing to Start a Steam Boiler

    • Ensure the boiler has a valid inspection certificate, and it has been properly checked, cleaned, filled with water, closed, and tightened, with all auxiliary systems prepared.
    • Review the manufacturer's recommendations for startup to ensure compliance with specific guidelines.

    Preparing Piping and Fuel Systems

    • If warming up the piping system with the boiler, open suction and discharge valves on vacuum or condensate pumps, and set pump switches to "auto" or "on".
    • Open the water supply to the feeder valve, if equipped, and ensure the deaerator and feedwater make-up system are filled to operating levels.
    • Ensure fuel availability to stop valves in pilot and main burner supply lines, and open the return line stop valve if using fuel oil.
    • Verify that fuel lines, filter, and fuel pump are operating as expected, with all parameters within expected range.

    Final Checks

    • Ensure unobstructed fresh air supply to the boiler room.
    • Check pressure settings of operating and high limit controls.
    • Verify the boiler control switch on the panel is in the "off" position.
    • Set the control switch to "low" on boilers with high-low firing rate control, and to "manual" and low-fire position on boilers with fully modulating firing rate control.
    • If equipped with a mechanical reset, push the reset button on the low water fuel cut-off and/or high limit control.

    Preparing to Start a Steam Boiler

    • Ensure the boiler has a valid inspection certificate, and it has been properly checked, cleaned, filled with water, closed, and tightened, with all auxiliary systems prepared.
    • Review the manufacturer's recommendations for startup to ensure compliance with specific guidelines.

    Preparing Piping and Fuel Systems

    • If warming up the piping system with the boiler, open suction and discharge valves on vacuum or condensate pumps, and set pump switches to "auto" or "on".
    • Open the water supply to the feeder valve, if equipped, and ensure the deaerator and feedwater make-up system are filled to operating levels.
    • Ensure fuel availability to stop valves in pilot and main burner supply lines, and open the return line stop valve if using fuel oil.
    • Verify that fuel lines, filter, and fuel pump are operating as expected, with all parameters within expected range.

    Final Checks

    • Ensure unobstructed fresh air supply to the boiler room.
    • Check pressure settings of operating and high limit controls.
    • Verify the boiler control switch on the panel is in the "off" position.
    • Set the control switch to "low" on boilers with high-low firing rate control, and to "manual" and low-fire position on boilers with fully modulating firing rate control.
    • If equipped with a mechanical reset, push the reset button on the low water fuel cut-off and/or high limit control.

    Preparing to Start a Steam Boiler

    • Ensure the boiler has a valid inspection certificate, and it has been properly checked, cleaned, filled with water, closed, and tightened, with all auxiliary systems prepared.
    • Review the manufacturer's recommendations for startup to ensure compliance with specific guidelines.

    Preparing Piping and Fuel Systems

    • If warming up the piping system with the boiler, open suction and discharge valves on vacuum or condensate pumps, and set pump switches to "auto" or "on".
    • Open the water supply to the feeder valve, if equipped, and ensure the deaerator and feedwater make-up system are filled to operating levels.
    • Ensure fuel availability to stop valves in pilot and main burner supply lines, and open the return line stop valve if using fuel oil.
    • Verify that fuel lines, filter, and fuel pump are operating as expected, with all parameters within expected range.

    Final Checks

    • Ensure unobstructed fresh air supply to the boiler room.
    • Check pressure settings of operating and high limit controls.
    • Verify the boiler control switch on the panel is in the "off" position.
    • Set the control switch to "low" on boilers with high-low firing rate control, and to "manual" and low-fire position on boilers with fully modulating firing rate control.
    • If equipped with a mechanical reset, push the reset button on the low water fuel cut-off and/or high limit control.

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    Description

    Learn the essential steps to prepare a steam boiler for startup, from inspection certification to system preparation. Understand the general guidelines to ensure a safe and efficient startup process.

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