Joseph C. Henderson Archives

Joseph C. Henderson

Company name: Hvac Consulting Services, LLC

Position: President

Joseph “Joey” Henderson has been an HVAC instructor at Midlands Technical College for over 30 years and has served as the Program Coordinator for HVAC for the last 6 years. He is also the president of his education and consulting company, Hvac Consulting Services, LLC, and is known for providing quality HVAC education to people at all stages of their careers while cultivating an energetic learning environment.

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Refrigerant Recovery Cylinder Fill Calculations Simplified

This tech tip was written by Eric Kaiser from TruTech Tools. Thanks, Eric! Filling refrigerant recovery cylinders is a task HVACR technicians perform regularly, but figuring out how much refrigerant to safely put into a cylinder can still be confusing. The challenge almost always comes back to refrigerant density or specific gravity. Specific gravity, also […]

A Liquid Line Solenoid and What it Does

Depending on what segment of the business you are in and your location, you either work on pump-down solenoid systems all the time, or YOU HAVE NO CLUE what a liquid line solenoid is. A liquid line solenoid valve (LLSV) is just a valve that opens and closes; it has a magnetic coil. Depending on […]

Confirming Liquid Levels with a Little Thermodynamics

Maintaining the correct vapor-liquid refrigerant balance is crucial for air conditioning and refrigeration system performance. Longer line sets hold more refrigerant, which increases the risk of liquid accumulating in the suction line or entering the compressor during off-cycles. Heat pumps are one common application that requires additional measures. Refrigerant flow reverses during heating, turning the […]