Which of the following is not a function of the refrigeration compressor?

The correct choice highlights that removing energy from the vapor is not a function of the refrigeration compressor. In a refrigeration cycle, the primary roles of the compressor include compressing the refrigerant vapor to a higher pressure and temperature, circulating the refrigerant through the system, and increasing the refrigerant pressure to facilitate subsequent heat exchange processes.

The compressor works by drawing in low-pressure refrigerant vapor from the evaporator and compressing it, thus increasing both the pressure and temperature. This change is essential for the refrigerant to release its heat in the condenser, where it transitions from vapor to liquid.

Conversely, removing energy from the vapor is primarily the role of components like the evaporator, where the refrigerant absorbs heat from the surroundings to create a cooling effect. The compressor does not remove energy; it instead adds energy to the refrigerant via mechanical work, enabling it to move through the refrigeration system effectively.