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This was MUCH harder than I expected... DIY Air Conditioning Pt 1
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Supermarket Refrigeration - How To Troubleshoot a Case Running Warm ( Found Bad Suction Stop)
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Budget Mini Split Installation for Beginners! w/ Vacuum Pump and Gauges
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How This New Heat Pump is Genius
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Multiple Walk-In Freezer Issues #refrigeration #servicecall #hvacr
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Mitsubishi vs. Mr. Cool: Which Mini Split Should I Choose?
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if and how to convert r410a system to r290 , r600. change refrigerant in your AC
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