单选题 1分

What is the function of the expansion valve?

  • A. It is used to regulate the correct volume of liquid refrigerant flows from the high pressure side of the system through to the low pressure evaporator side.
  • B. It is used to protect the evaporator from dirt entering with the suction gas.
  • C. Adjust the flow rate of the refrigerant,
  • D. It is mainly used to regulate the flow rate of the refrigerant.

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