An air conditioner with a fixed-restriction metering device is operating with an evaporator saturation temperature of 40°F and a suction line temperature of 42°F. The factory-specified superheat for the current operating condition is 12°F. After checking the airflow and determining that it is within specifications, the technician should:

A) Add charge because the system is undercharged.
B) Leave the charge alone because it is cooling even better than factory specifications.
C) Move some of the charge from the low side of the system to the high side of the system to balance the charge.
D) Recover charge because the system is overcharged.


D

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