The article discusses the constructive and conceptual solutions associated with the implementation of the main devices of the central air conditioner, working in conjunction with the chiller. The peculiarity of the implementation of these devices is dictated by the use of solar energy. The receivers of solar energy are solar collectors, in which the heating medium is heated, which is used as a heat source in the chiller generator.

Keywords: solar energy, central air conditioner, chiller, absorption refrigeration machines, vacuum solar collector

A model of a household refrigeration machine (BHM) is considered. The refrigerating capacity, thermal load are determined, the compressor and operational parameters are calculated, the cycle of the chiller in p-i coordinates is built.

Keywords: household refrigerator, temperature, refrigerator, heat load, cooling capacity, compressor, heat influx

The work is devoted to the consideration of problems and the state of use of alternative energy sources. The description of various types of refrigerating machines using solar energy for air conditioning systems of administrative and residential buildings is given.

Keywords: solar energy, secondary heat sources, absorption refrigeration machines, lithium-methanol bromide mixture.