The most accurate method of charging a small appliance that holds less than a lb of refrigerant is to add:

A) Liquid into the system until the pressure equals the saturation pressure and temperature.
B) Vapor with the system not operating up to a specified static pressure at a specified ambient temperature.
C) Vapor into the low side with the system operating while checking the compressor amp draw.
D) Liquid into the system with the system off until the liquid stops going in.


B

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