Some multi-stage compression systems are arranged so that the evaporator of one stage is the condenser of the next stage. Such a system is called:

A system where the evaporator of one stage serves as the condenser of the next stage is known as a cascade system. In a cascade refrigeration system, different refrigerants can be used in different stages, optimizing performance and efficiency by taking advantage of varying temperature ranges in each stage. This design is particularly effective in applications requiring significant temperature reductions or where there is a need to maintain very low temperatures while efficiently absorbing heat from the environment.

The cascading of evaporators and condensers allows for the successive compression of refrigerant gases, which leads to enhanced cooling capacities without requiring extremely high pressure in a single stage. This is beneficial in applications such as industrial refrigeration, cryogenic systems, or any situation where the cooling load demands more than a single stage can provide.

Other configurations mentioned do not incorporate the direct heat exchange between stages within the same system. This makes the cascade system distinct and efficient in how it handles refrigeration demands. Such systems leverage economizer cycles and thermodynamic principles to achieve better overall efficiency and reliability.