The actuating components of a reversing valve in a heat pump include which two elements?

The correct choice, which includes the slide valve and piston, reflects the typical design and function of a reversing valve in a heat pump system.

In a heat pump, the reversing valve is a key component responsible for directing the flow of refrigerant, thereby enabling heating or cooling mode. The slide valve works by moving along a path within the assembly, allowing for the seamless switching of refrigerant flow. The piston serves to control the position of the slide valve, ensuring that the unit transitions appropriately between heating and cooling modes. This mechanism is essential for the efficient operation of a heat pump system.

Having a solid understanding of the relationships between these components helps troubleshoot and maintain heat pumps effectively, as any malfunction within the piston or slide valve can lead to improper system operation. The other choices consist of components that may not be relevant to the specific function and operation of a reversing valve in a heat pump context.