Fast Recovery #4: Purging the Lines

Introduction

This tutorial focuses on purging the lines and equipment of non-condensables before refrigerant recovery. Proper purging reduces issues like high pressures and hot tanks, ensuring a smoother recovery process. This guide is part of the Fast Recovery Series, aimed at improving your refrigerant recovery efficiency using best practices.

Step 1: Prepare Your Equipment

• Gather necessary tools and equipment:
  • G5Twin Recovery machine
  • TEZ8 vacuum pump
  • MegaFlow kits
  • Vacuum certified hoses
  • Valve core removal tools
• Ensure your recovery cylinders are clean and ready for use.

Step 2: Connect the System

• Make full flow connections between your recovery machine and the lines.
• Use proper hoses to avoid leaks and ensure efficient purging.

Step 3: Purge the Lines

• Open the valve on the recovery machine to start the purging process.
• Allow the machine to run until you see a consistent flow of refrigerant without any non-condensables.
• Monitor the pressure gauges to ensure they are within the safe operating range.

Step 4: Monitor Temperature and Pressure

• Keep an eye on the temperature and pressure readings during the purge.
• Avoid high pressures by adjusting the flow rate if necessary.
• If you notice any abnormal readings, stop the process and troubleshoot the setup.

Step 5: Complete the Purge

• Once you have confirmed that the lines are free of non-condensables, close the valves on both the machine and the recovery cylinder.
• Ensure that the system is sealed properly to prevent any leaks post-purge.

Step 6: Maintain Your Equipment

• After completing the purge, clean and store your equipment properly.
• Regular maintenance checks will prolong the lifespan of your tools and ensure they function optimally for future use.

Conclusion

Successfully purging the lines is crucial for efficient refrigerant recovery. By following these steps, you can minimize issues related to high pressures and improve the overall effectiveness of your recovery process. Consider using the Appion ION HVAC/R app to track your work and optimize your operations further. If you have questions or need further guidance, feel free to reach out through comments or visit the Appion website.