Air Conditioning Repair Certification (ETI) Practice Exam

Question: 1 / 400

What is the function of a reversing valve in a heat pump?

To improve airflow

To switch the flow of refrigerant for heating and cooling modes

The function of a reversing valve in a heat pump is to switch the flow of refrigerant for heating and cooling modes. A heat pump operates by moving heat from one place to another, and the reversing valve plays a crucial role in determining the direction of refrigerant flow. In cooling mode, the valve directs refrigerant to absorb heat from the indoor air and release it outside. Conversely, in heating mode, the valve reverses the flow, allowing the refrigerant to absorb heat from outside and release it indoors. This capability allows heat pumps to function efficiently in both heating and cooling applications, making the reversing valve essential for their operation.

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To maintain a constant refrigerant level

To filter contaminants from the refrigerant

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