What is a monoblock refrigeration system?

Monoblock refrigeration systems consist of a condensing unit and an evaporating unit that is built together.
The refrigeration cycle of any refrigeration equipment or system includes multiple steps: compression, condensation, expansion, and evaporation. This refrigeration cycle can be done in split systems, where the condenser is one unit and the evaporator is another, needing pipes in the installation, or in a compact system, such as monoblocks.

What is a monoblock refrigeration system?