Refrigeration Category Index

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HVAC Refrigeration 101 Part 2

HVAC Refrigeration 101 Part 2 What is covered in Part 2 of "Refrigeration 101 - An Introduction to Refrigeration": Pressure as Related to Temperature Boyle's Law Charles's Law Dalton's Law The Process of Refrigeration The Refrigeration Cycle The Refrigerant Charge...

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Refrigeration for HVAC 101

Refrigeration for HVAC 101 Refrigeration 101 - Refrigeration and Air Conditioning Technology is a textbook and will help you follow this material. You must understand heat and heat transfer principles and theory. That includes the fundamental physics...

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Old Leaking Condenser Coils

Old Leaking Condenser Coils (also referred to as freon leaks) can cause serious issues with HVAC heat pump equipment. HVAC refrigeration circuits are designed and built to hold the refrigerant. It is a sealed hermetic system. The HVAC refrigeration circuit should...

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HVAC Refrigeration Category Index

HVAC Refrigeration Category Index offers a list of articles to assist in learning more about HVAC refrigeration technical information. Articles including information about the refrigeration loop and process as it pertains to HVAC along with other articles such as refrigeration piping practices and refrigeration components. We include several refrigerant pressure temperature or PT charts, brazing and soldering techniques and practices, and finding and fixing refrigerant leaks. Detailed information and a breakdown of refrigeration components are also offered along with refrigeration theory used in the filed by technicians. Some articles are designed to help the layman understand refrigeration basics and to help them solves basic issues while other articles are for technicians wanting to sharpen their skills.

Refrigeration Category Basic Index:

  • HVAC Refrigeration Troubleshooting
  • Refrigeration Theory
  • HVAC Refrigeration Components
  • Charts - Pressure Temperature Charts or PT Charts for common refrigerants
  • Best Installation Methods and Practices for Piping and System Installation
  • Refrigerant Leaks - Finding and Repair the Refrigerant Leaks

And many other articles to help you learn more about refrigeration.

HVAC Refrigeration Category Index

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HVAC Random Tip Box

HVAC Tip - A thermocouple is commonly used in standing pilot gas furnaces and water heaters are technically referred to as a copple element and produces millivolts when heat is applied to the tip. This millivoltage is necessary to keep the pilot valve inside the gas valve open. If the pilot flame goes out, the thermocouple stops generating millivolts. Without the millivolts, the valve closes thus preventing gas from escaping when there is no flame. Thermocouples fail because of oxidation. It is recommended that you keep the pilot lit throughout the year to prevent excess oxidation. The thermocouple can be found in many different types of gas furnaces, gas logs, and gas water heaters. Learn How to Test a Thermocouple with a Multi-Meter