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Showing TXV Operation with a Water Stream! Thermostatic Expansion Valve Explained!

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HVAC: How To Install a Bullet Piercing Valve On Any AC/Refrigeration System (Supco BPV21 BPV31)

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How To Test Car AC Service Port Valves For Leaks

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Types of HVAC/R Service Valves, How They Work, Port Access & Problems!

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Car AC Not Cooling - How To Easily Replace AC Valve Cores

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AC NOT BLOWING COLD AIR? 3 SYMPTOMS OF A BAD EXPANSION VALVE

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How to Install a Service Port on Sealed Air Conditioning Systems: Step-by-Step Guide