Abstract: As we follow the history of the evolution of refrigeration and air conditioning systems electronics play a vital role in making system compact, energy efficient and smart to understand the application requirement. Though its base function —operate the system through electricity power is quite simple, this function is key to ensuring system operation and performance. Understanding this evolution we will go through the various aspect of electronic control of new era like saving of the previous energy through compressor inverter technology, use of smart sensing to improve the performance of the system and use of renewable energy in HVAC & R system.

Keywords: HVAC & R, Inverter Technology, Smart sensing system, Energy efficiency, Solar refrigeration.