24 Questions
EASY Why is it important to perform pH tests on a monthly basis for all systems?
To ensure the system is not becoming acidic and the inhibitor is being consumed
What should be done immediately after a major leak has occurred in a system treated with sulfite?
Check the sulfite levels and feed additional chemical to the system
How often should systems containing glycol be tested for freeze point and inhibitor?
Annually
What can be done to keep track of dissolved solids in a closed loop system?
Conduct conductivity measurements
Why should make-up water usage be monitored?
To ensure the system is not leaking and high make-up indicates a need for additional water treatment chemical
What should be installed on the make-up water line to monitor make-up water usage?
Meter
How often should corrosion coupons be removed and tested?
Every one to three months
What is the most important role in closed system monitoring?
Operators
MEDIUM What is the purpose of pH tests in closed loop systems?
To detect if systems are becoming acidic
What is the recommended initial dose for heating and cooling systems?
Sodium sulfite
What is the consequence of high make-up water usage?
Leaks that require repair and need for additional water treatment chemical
What is the purpose of checking sulfite levels in a system treated with sulfite?
To restore the proper concentration
What is the recommended frequency for visual inspections of closed loop systems?
Frequent
What is the consequence of failing to address leaks, loose insulation, or visible corrosion by-products?
Corrosion will increase
What is the purpose of checking corrosion coupons?
To detect corrosion
What is the result of not replenishing inhibitor in a closed loop system?
Inhibitor is being consumed
HARD What is the primary reason for using sodium sulfite in heating and cooling systems?
To scavenge oxygen and prevent corrosion
What is the likely cause of a falling pH level in a closed loop system?
Inhibitor consumption
What is the primary purpose of testing corrosion coupons?
To detect signs of corrosion or leakage
What is the consequence of failing to address leaks, loose insulation, or visible corrosion by-products in a closed loop system?
Accelerated system corrosion
What is the primary reason for monitoring make-up water usage in a closed loop system?
To detect signs of leakage or corrosion
What is the recommended frequency for checking sulfite levels in a system treated with sulfite?
Monthly
What is the primary purpose of conducting pH tests in closed loop systems?
To monitor the system's inhibitor levels
What is the consequence of not replenishing inhibitor in a closed loop system?
Accelerated system corrosion
Study Notes
pH Tests in Closed Loop Systems
- pH tests are crucial to detect acidity in systems, especially when glycols are used.
- A falling pH level indicates that the inhibitor is being consumed and needs to be replenished.
- pH tests should be performed monthly for all systems.
Oxygen Scavenging in Heating and Cooling Systems
- Sodium sulfite is recommended to scavenge oxygen in heating and cooling systems.
- Systems treated with sulfite should have residual levels checked monthly.
- If a major leak occurs, sulfite levels should be checked immediately, and additional chemical should be fed to restore the proper concentration.
Testing for Glycol Systems
- Systems containing glycol should be tested annually for freeze point and inhibitor.
Corrosion Monitoring
- Corrosion coupons should be removed and tested every one to three months.
Conductivity Measurements
- Conductivity tests track dissolved solids resulting from corrosion or excessive make-up.
- Conductivity tests can be performed monthly.
Make-up Water Monitoring
- Make-up water usage should be monitored to detect leaks and optimize water treatment chemicals.
- Meters should be installed on the make-up water line to track usage.
- High make-up indicates leaks that require repair and a need for additional water treatment chemicals.
- Make-up water usage should be checked at least monthly.
Operator's Role in Closed System Monitoring
- Operators play a crucial role in monitoring closed systems.
- Frequent visual inspections for signs of leakage or corrosion are essential.
- Any leaks, loose insulation, or visible corrosion by-products should be addressed immediately.
pH Tests in Closed Loop Systems
- pH tests are crucial to detect acidity in systems, especially when glycols are used.
- A falling pH level indicates that the inhibitor is being consumed and needs to be replenished.
- pH tests should be performed monthly for all systems.
Oxygen Scavenging in Heating and Cooling Systems
- Sodium sulfite is recommended to scavenge oxygen in heating and cooling systems.
- Systems treated with sulfite should have residual levels checked monthly.
- If a major leak occurs, sulfite levels should be checked immediately, and additional chemical should be fed to restore the proper concentration.
Testing for Glycol Systems
- Systems containing glycol should be tested annually for freeze point and inhibitor.
Corrosion Monitoring
- Corrosion coupons should be removed and tested every one to three months.
Conductivity Measurements
- Conductivity tests track dissolved solids resulting from corrosion or excessive make-up.
- Conductivity tests can be performed monthly.
Make-up Water Monitoring
- Make-up water usage should be monitored to detect leaks and optimize water treatment chemicals.
- Meters should be installed on the make-up water line to track usage.
- High make-up indicates leaks that require repair and a need for additional water treatment chemicals.
- Make-up water usage should be checked at least monthly.
Operator's Role in Closed System Monitoring
- Operators play a crucial role in monitoring closed systems.
- Frequent visual inspections for signs of leakage or corrosion are essential.
- Any leaks, loose insulation, or visible corrosion by-products should be addressed immediately.
pH Tests in Closed Loop Systems
- pH tests are crucial to detect acidity in systems, especially when glycols are used.
- A falling pH level indicates that the inhibitor is being consumed and needs to be replenished.
- pH tests should be performed monthly for all systems.
Oxygen Scavenging in Heating and Cooling Systems
- Sodium sulfite is recommended to scavenge oxygen in heating and cooling systems.
- Systems treated with sulfite should have residual levels checked monthly.
- If a major leak occurs, sulfite levels should be checked immediately, and additional chemical should be fed to restore the proper concentration.
Testing for Glycol Systems
- Systems containing glycol should be tested annually for freeze point and inhibitor.
Corrosion Monitoring
- Corrosion coupons should be removed and tested every one to three months.
Conductivity Measurements
- Conductivity tests track dissolved solids resulting from corrosion or excessive make-up.
- Conductivity tests can be performed monthly.
Make-up Water Monitoring
- Make-up water usage should be monitored to detect leaks and optimize water treatment chemicals.
- Meters should be installed on the make-up water line to track usage.
- High make-up indicates leaks that require repair and a need for additional water treatment chemicals.
- Make-up water usage should be checked at least monthly.
Operator's Role in Closed System Monitoring
- Operators play a crucial role in monitoring closed systems.
- Frequent visual inspections for signs of leakage or corrosion are essential.
- Any leaks, loose insulation, or visible corrosion by-products should be addressed immediately.
This quiz covers the importance of pH tests in closed loop systems, especially when using glycols, and the need for regular testing and oxygen scavenging methods.
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