Podcast
Questions and Answers
EASY What is the primary reason for regular checks of hot water heating boilers?
EASY What is the primary reason for regular checks of hot water heating boilers?
- To ensure continuous supervision
- To ensure safe and efficient operation during unsupervised periods (correct)
- To adjust the water temperature
- To monitor the burner flame condition only
What is the primary function of the programmed combustion control?
What is the primary function of the programmed combustion control?
- To maintain safe and efficient burner operation (correct)
- To sequence the operation of the pump
- To adjust the make-up water supply
- To monitor the stack temperature
What is the recommended colour of the burner flame when burning natural gas?
What is the recommended colour of the burner flame when burning natural gas?
- Predominantly blue (correct)
- Predominantly yellow
- Predominantly orange
- Predominantly white
What does a white plume from the chimney indicate?
What does a white plume from the chimney indicate?
What is the purpose of monitoring the stack temperature?
What is the purpose of monitoring the stack temperature?
What is the purpose of the daily routine procedures?
What is the purpose of the daily routine procedures?
What should the burner flame signal on the flame scanner or programmed combustion control indicate?
What should the burner flame signal on the flame scanner or programmed combustion control indicate?
What is the recommended colour of the burner flame when burning light fuel oil?
What is the recommended colour of the burner flame when burning light fuel oil?
What is a common cause of a smoky flame?
What is a common cause of a smoky flame?
Why is it important to regularly check the flue gas temperature?
Why is it important to regularly check the flue gas temperature?
What is the result of a gradual increase in flue gas temperature?
What is the result of a gradual increase in flue gas temperature?
What is a possible cause of high flue gas temperature?
What is a possible cause of high flue gas temperature?
Why should the hot water supply set point not be below 75°C?
Why should the hot water supply set point not be below 75°C?
What is the maximum operating temperature for hot water heating boilers?
What is the maximum operating temperature for hot water heating boilers?
What is the recommended minimum differential between the safety relief valve set pressure and the boiler operating pressure?
What is the recommended minimum differential between the safety relief valve set pressure and the boiler operating pressure?
What is the purpose of checking the boiler discharge water temperature?
What is the purpose of checking the boiler discharge water temperature?
What is a possible cause of a high flue gas temperature?
What is a possible cause of a high flue gas temperature?
Why should the high temperature cut-off be set to below 120°C?
Why should the high temperature cut-off be set to below 120°C?
What may happen if solid deposits form on the safety valve seats?
What may happen if solid deposits form on the safety valve seats?
Why is it essential to regularly check that the heating system is completely filled with water?
Why is it essential to regularly check that the heating system is completely filled with water?
What may cause water losses in a hot water heating system?
What may cause water losses in a hot water heating system?
What is the purpose of an automatic feed valve in a hot water heating system?
What is the purpose of an automatic feed valve in a hot water heating system?
What may happen if the expansion tank is full and unable to accommodate the increase in water volume?
What may happen if the expansion tank is full and unable to accommodate the increase in water volume?
Why should the expansion tank be regularly checked?
Why should the expansion tank be regularly checked?
What is the correct procedure to check the air charge in a bladder-style expansion tank?
What is the correct procedure to check the air charge in a bladder-style expansion tank?
What may be a sign of a damaged bladder in a bladder-style expansion tank?
What may be a sign of a damaged bladder in a bladder-style expansion tank?
Why is it recommended to install a water meter in the make-up line?
Why is it recommended to install a water meter in the make-up line?
What may happen if water losses are left unaddressed in a hot water heating system?
What may happen if water losses are left unaddressed in a hot water heating system?
Why is it important to determine and repair the cause of an air leak before returning the expansion tank from service?
Why is it important to determine and repair the cause of an air leak before returning the expansion tank from service?
What is the purpose of shutting the valve to the boiler or heating system when draining the expansion tank?
What is the purpose of shutting the valve to the boiler or heating system when draining the expansion tank?
What is the purpose of using pipe plugs or caps on the vent and drain lines?
What is the purpose of using pipe plugs or caps on the vent and drain lines?
What should be done to the gauge glass gaskets when the expansion tank is isolated and drained?
What should be done to the gauge glass gaskets when the expansion tank is isolated and drained?
What is the purpose of performing a chemical residual test in hot water heating systems?
What is the purpose of performing a chemical residual test in hot water heating systems?
What is the purpose of shot feeding water treatment chemicals into the system?
What is the purpose of shot feeding water treatment chemicals into the system?
Why is internal water treatment required in hot water heating systems?
Why is internal water treatment required in hot water heating systems?
Under what conditions are blowoff valves usually opened?
Under what conditions are blowoff valves usually opened?
MEDIUM What is the purpose of regular boiler checks?
MEDIUM What is the purpose of regular boiler checks?
What is the typical characteristic of a hot water boiler's operation?
What is the typical characteristic of a hot water boiler's operation?
What should be observed during daily routine procedures?
What should be observed during daily routine procedures?
What is the purpose of the programmed combustion control?
What is the purpose of the programmed combustion control?
Why are daily routine procedures necessary?
Why are daily routine procedures necessary?
What is the significance of observing the chimney condition?
What is the significance of observing the chimney condition?
What is an important aspect of routine boiler checks?
What is an important aspect of routine boiler checks?
What is the implication of a white plume from the chimney?
What is the implication of a white plume from the chimney?
What could be a reason for a smoky flame?
What could be a reason for a smoky flame?
What should be done to correct high flue gas temperature?
What should be done to correct high flue gas temperature?
Why is it essential to check the boiler discharge water temperature?
Why is it essential to check the boiler discharge water temperature?
What happens when heat transfer surfaces are fouled?
What happens when heat transfer surfaces are fouled?
What is the minimum recommended differential between the safety relief valve set pressure and the boiler operating pressure?
What is the minimum recommended differential between the safety relief valve set pressure and the boiler operating pressure?
Why should the hot water supply set point not be below 75°C?
Why should the hot water supply set point not be below 75°C?
What may cause a high flue gas temperature?
What may cause a high flue gas temperature?
Why is it essential to regularly check the flue gas temperature?
Why is it essential to regularly check the flue gas temperature?
What is the maximum operating temperature for hot water heating boilers?
What is the maximum operating temperature for hot water heating boilers?
Why is it essential to adjust the air-fuel ratio?
Why is it essential to adjust the air-fuel ratio?
What happens to a conventional air cushion expansion tank if it loses air?
What happens to a conventional air cushion expansion tank if it loses air?
Why is it important to repair the cause of an air leak before returning the expansion tank to service?
Why is it important to repair the cause of an air leak before returning the expansion tank to service?
What is the purpose of opening the gauge glass drain when draining the expansion tank?
What is the purpose of opening the gauge glass drain when draining the expansion tank?
Why is internal chemical treatment required in hot water heating systems?
Why is internal chemical treatment required in hot water heating systems?
What is the purpose of performing a chemical residual test in hot water heating systems?
What is the purpose of performing a chemical residual test in hot water heating systems?
What is the purpose of shot feeding water treatment chemicals into the system?
What is the purpose of shot feeding water treatment chemicals into the system?
Under what conditions are blowoff valves usually opened?
Under what conditions are blowoff valves usually opened?
Why is it important to restrict blowoff and blowdown in hot water heating boilers?
Why is it important to restrict blowoff and blowdown in hot water heating boilers?
What may prevent the safety valve from opening at its set pressure?
What may prevent the safety valve from opening at its set pressure?
What is a common cause of water loss from a hot water heating system?
What is a common cause of water loss from a hot water heating system?
What is the purpose of installing a water meter in the make-up line?
What is the purpose of installing a water meter in the make-up line?
What may happen if the upper part of the piping system runs dry?
What may happen if the upper part of the piping system runs dry?
What is the correct procedure to check the air charge in a bladder-style expansion tank?
What is the correct procedure to check the air charge in a bladder-style expansion tank?
What is a sign of a damaged bladder in a bladder-style expansion tank?
What is a sign of a damaged bladder in a bladder-style expansion tank?
What may happen if the heating system is not properly filled with water?
What may happen if the heating system is not properly filled with water?
What is the purpose of an automatic feed valve in a hot water heating system?
What is the purpose of an automatic feed valve in a hot water heating system?
What may happen if the expansion tank is full and unable to accommodate the increase in water volume?
What may happen if the expansion tank is full and unable to accommodate the increase in water volume?
What is the result of unaddressed water losses in a hot water heating system?
What is the result of unaddressed water losses in a hot water heating system?
HARD What is the primary function of the burner programmed combustion control sequences?
HARD What is the primary function of the burner programmed combustion control sequences?
Why is it important to observe the chimney condition during daily routine procedures?
Why is it important to observe the chimney condition during daily routine procedures?
What is the significance of a white plume from the chimney?
What is the significance of a white plume from the chimney?
What is the purpose of monitoring the pump operation and make-up water supply?
What is the purpose of monitoring the pump operation and make-up water supply?
Why are daily routine procedures necessary for hot water boilers?
Why are daily routine procedures necessary for hot water boilers?
What is the typical characteristic of a hot water boiler's operation?
What is the typical characteristic of a hot water boiler's operation?
What is the implication of a smoky flame during burner operation?
What is the implication of a smoky flame during burner operation?
What is the purpose of regular boiler checks?
What is the purpose of regular boiler checks?
What is the primary cause of air leaks in conventional air cushion expansion tanks?
What is the primary cause of air leaks in conventional air cushion expansion tanks?
What is the purpose of opening the drain valve and vent valve when draining the expansion tank?
What is the purpose of opening the drain valve and vent valve when draining the expansion tank?
Why is it essential to use pipe plugs or caps on the vent and drain lines?
Why is it essential to use pipe plugs or caps on the vent and drain lines?
What is the recommended method for testing the water treatment chemical residual in hot water heating systems?
What is the recommended method for testing the water treatment chemical residual in hot water heating systems?
Why is internal chemical treatment required in hot water heating systems?
Why is internal chemical treatment required in hot water heating systems?
What is the primary purpose of blowdown valves in hot water heating boilers?
What is the primary purpose of blowdown valves in hot water heating boilers?
What is the consequence of not addressing air leaks in the expansion tank before returning it to service?
What is the consequence of not addressing air leaks in the expansion tank before returning it to service?
Why is it essential to use a pot feeder for shot feeding water treatment chemicals into the hot water heating system?
Why is it essential to use a pot feeder for shot feeding water treatment chemicals into the hot water heating system?
What is the primary reason for a gradual increase in flue gas temperature?
What is the primary reason for a gradual increase in flue gas temperature?
What is the consequence of a boiler operating at a temperature above 120°C?
What is the consequence of a boiler operating at a temperature above 120°C?
What is the recommended procedure to correct excessive flue gas temperature due to too much excess air?
What is the recommended procedure to correct excessive flue gas temperature due to too much excess air?
What is the implication of a high flue gas temperature due to over-firing?
What is the implication of a high flue gas temperature due to over-firing?
What is the purpose of checking the combustion air intake to the boiler room?
What is the purpose of checking the combustion air intake to the boiler room?
What is the consequence of waterside scale and sludge deposits on the heating surfaces?
What is the consequence of waterside scale and sludge deposits on the heating surfaces?
What is the recommended procedure to correct a smoky flame?
What is the recommended procedure to correct a smoky flame?
What is the implication of a small rise in flue gas temperature?
What is the implication of a small rise in flue gas temperature?
What is the purpose of checking the boiler operating pressure?
What is the purpose of checking the boiler operating pressure?
What is the consequence of heavy scale build-up on the heating surfaces?
What is the consequence of heavy scale build-up on the heating surfaces?
What is the most likely cause of water losses in a hot water heating system if the expansion tank is full?
What is the most likely cause of water losses in a hot water heating system if the expansion tank is full?
What is the consequence of a damaged bladder in a bladder-style expansion tank?
What is the consequence of a damaged bladder in a bladder-style expansion tank?
What is the purpose of installing a water meter in the make-up line of a hot water heating system?
What is the purpose of installing a water meter in the make-up line of a hot water heating system?
What is the consequence of not addressing water losses in a hot water heating system?
What is the consequence of not addressing water losses in a hot water heating system?
What is the correct procedure to check the air charge in a bladder-style expansion tank?
What is the correct procedure to check the air charge in a bladder-style expansion tank?
What is the purpose of regular checks on the heating system?
What is the purpose of regular checks on the heating system?
What is the consequence of a full expansion tank in a hot water heating system?
What is the consequence of a full expansion tank in a hot water heating system?
Why is it essential to regularly check the expansion tank?
Why is it essential to regularly check the expansion tank?
What is the purpose of an automatic feed valve in a hot water heating system?
What is the purpose of an automatic feed valve in a hot water heating system?
What may happen if the upper part of the piping system runs dry in a hot water heating system?
What may happen if the upper part of the piping system runs dry in a hot water heating system?
Study Notes
Routine Operation Procedures
- Daily routine checks are crucial to ensure the safe operation of hot water boilers, including observing the burner flame, checking the chimney, and monitoring combustion air intake.
Burner Operation
- Observe the burner flame to ensure it is bright and symmetrical, with a blue color for natural gas and bright yellow for light fuel oil.
- Check the flame signal on the flame scanner or programmed combustion control.
- Check the chimney for signs of smoking, which may indicate a problem with the fuel-air ratio or burner nozzle.
Flue Gas Temperature
- Check the flue gas temperature regularly to ensure efficient heat transfer between the flue gases and boiler water.
- A gradual increase in temperature may indicate fouling of the heating surfaces, while an excessive temperature rise may indicate serious trouble.
Boiler Water Temperature
- Check that the boiler discharge water temperature is at or near the hot water supply set point.
- Ensure the operating temperature is not higher than necessary for adequate building heat.
- Prevent corrosion by keeping the hot water set point above 75°C, unless the boiler is a condensing type.
Boiler Pressure
- Ensure the operating pressure of low-pressure hot water heating boilers is within safe limits, taking into account the safety relief valve set pressure.
Water Losses and Make-Up Water Supply
- Regularly check for water losses, which may be due to leaking piping, valves, or the boiler itself.
- Use an automatic feed valve to add make-up water, and consider installing a water meter to detect leaks.
Expansion Tanks
- Check expansion tanks regularly to ensure they have adequate room for expansion.
- Check air charge, and adjust as necessary to prevent water, heat, and chemical wastage.
Bladder-Style Expansion Tanks
- Check the air charge of bladder-style expansion tanks by isolating the tank, draining the water, and using a tire pressure gauge.
- Adjust the air pressure as necessary, and replace the bladder if damaged.
Conventional Air Cushion Expansion Tanks
- Check for air leaks in conventional air cushion expansion tanks, and repair or replace fittings as necessary.
- Drain and refill the tank as necessary to prevent water accumulation.
Water Treatment
- Hot water heating systems require internal chemical treatment to prevent corrosion and scale formation.
- Regularly test the water for residual corrosion inhibitor, and shot feed treatment chemicals as necessary.
Blowoff and Blowdown
- Restrict blowoff and blowdown to minimize the need for internal water treatment and reduce the amount of make-up required.
Routine Operation Procedures
- Daily routine checks are crucial to ensure the safe operation of hot water boilers, including observing the burner flame, checking the chimney, and monitoring combustion air intake.
Burner Operation
- Observe the burner flame to ensure it is bright and symmetrical, with a blue color for natural gas and bright yellow for light fuel oil.
- Check the flame signal on the flame scanner or programmed combustion control.
- Check the chimney for signs of smoking, which may indicate a problem with the fuel-air ratio or burner nozzle.
Flue Gas Temperature
- Check the flue gas temperature regularly to ensure efficient heat transfer between the flue gases and boiler water.
- A gradual increase in temperature may indicate fouling of the heating surfaces, while an excessive temperature rise may indicate serious trouble.
Boiler Water Temperature
- Check that the boiler discharge water temperature is at or near the hot water supply set point.
- Ensure the operating temperature is not higher than necessary for adequate building heat.
- Prevent corrosion by keeping the hot water set point above 75°C, unless the boiler is a condensing type.
Boiler Pressure
- Ensure the operating pressure of low-pressure hot water heating boilers is within safe limits, taking into account the safety relief valve set pressure.
Water Losses and Make-Up Water Supply
- Regularly check for water losses, which may be due to leaking piping, valves, or the boiler itself.
- Use an automatic feed valve to add make-up water, and consider installing a water meter to detect leaks.
Expansion Tanks
- Check expansion tanks regularly to ensure they have adequate room for expansion.
- Check air charge, and adjust as necessary to prevent water, heat, and chemical wastage.
Bladder-Style Expansion Tanks
- Check the air charge of bladder-style expansion tanks by isolating the tank, draining the water, and using a tire pressure gauge.
- Adjust the air pressure as necessary, and replace the bladder if damaged.
Conventional Air Cushion Expansion Tanks
- Check for air leaks in conventional air cushion expansion tanks, and repair or replace fittings as necessary.
- Drain and refill the tank as necessary to prevent water accumulation.
Water Treatment
- Hot water heating systems require internal chemical treatment to prevent corrosion and scale formation.
- Regularly test the water for residual corrosion inhibitor, and shot feed treatment chemicals as necessary.
Blowoff and Blowdown
- Restrict blowoff and blowdown to minimize the need for internal water treatment and reduce the amount of make-up required.
Routine Operation Procedures
- Daily routine checks are crucial to ensure the safe operation of hot water boilers, including observing the burner flame, checking the chimney, and monitoring combustion air intake.
Burner Operation
- Observe the burner flame to ensure it is bright and symmetrical, with a blue color for natural gas and bright yellow for light fuel oil.
- Check the flame signal on the flame scanner or programmed combustion control.
- Check the chimney for signs of smoking, which may indicate a problem with the fuel-air ratio or burner nozzle.
Flue Gas Temperature
- Check the flue gas temperature regularly to ensure efficient heat transfer between the flue gases and boiler water.
- A gradual increase in temperature may indicate fouling of the heating surfaces, while an excessive temperature rise may indicate serious trouble.
Boiler Water Temperature
- Check that the boiler discharge water temperature is at or near the hot water supply set point.
- Ensure the operating temperature is not higher than necessary for adequate building heat.
- Prevent corrosion by keeping the hot water set point above 75°C, unless the boiler is a condensing type.
Boiler Pressure
- Ensure the operating pressure of low-pressure hot water heating boilers is within safe limits, taking into account the safety relief valve set pressure.
Water Losses and Make-Up Water Supply
- Regularly check for water losses, which may be due to leaking piping, valves, or the boiler itself.
- Use an automatic feed valve to add make-up water, and consider installing a water meter to detect leaks.
Expansion Tanks
- Check expansion tanks regularly to ensure they have adequate room for expansion.
- Check air charge, and adjust as necessary to prevent water, heat, and chemical wastage.
Bladder-Style Expansion Tanks
- Check the air charge of bladder-style expansion tanks by isolating the tank, draining the water, and using a tire pressure gauge.
- Adjust the air pressure as necessary, and replace the bladder if damaged.
Conventional Air Cushion Expansion Tanks
- Check for air leaks in conventional air cushion expansion tanks, and repair or replace fittings as necessary.
- Drain and refill the tank as necessary to prevent water accumulation.
Water Treatment
- Hot water heating systems require internal chemical treatment to prevent corrosion and scale formation.
- Regularly test the water for residual corrosion inhibitor, and shot feed treatment chemicals as necessary.
Blowoff and Blowdown
- Restrict blowoff and blowdown to minimize the need for internal water treatment and reduce the amount of make-up required.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
This quiz covers the essential checks and monitoring required for hot water heating boilers to function safely and efficiently during unsupervised periods.
