HVAC Refrigeration Manifold Digital Gauge Vacuum Pressure Temp Tester A/C

[Evaporation Pressure&Tempe test]: The maximum pressure when the refrigerant changes from liquid to gas. （The lower the pressure and temp of the evaporation are, the more efficient the refrigeration cycle and the greater the refrigeration capacity will do.
[Evaporation Pressure&Tempe test]: The maximum pressure when the refrigerant changes from liquid to gas. （The lower the pressure and temp of the evaporation are, the more efficient the refrigeration cycle and the greater the refrigeration capacity will do.

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