SUPPLY AND RECIRCULATION UNIT WITH AIR TEMPERATURE CHANGE FUNCTION AND METHOD FOR CHANGING AIR TEMPERATURE Russian patent published in 2023 - IPC F24F7/00 F24F1/03 

FIELD: room air supply and recirculation units.

SUBSTANCE: invention is related to room units that provide fresh air supply to the room, as well as changing the temperature of both supply and recirculation air. The supply and recirculation unit includes an air duct for supply air, a refrigeration circuit with refrigerant, an indoor unit and an outdoor unit. The indoor unit includes at least an inflow section and a mixing section located in one housing and connected to each other using an intermediate hole. Moreover, in the housing in the area of the inflow section there is a hole for intake of supply air, communicating with the air channel. The supply section includes a heating element, a supply fan and at least one filter. In this case, the housing has holes for intake of recirculated air and at least one hole for air outlet, and the mixing section includes a heat exchanger connected to the refrigeration circuit of the unit and a fan. The housing of the external unit houses a compressor and a heat exchanger connected to the refrigeration circuit.

EFFECT: highly efficient cooling and heating of both recirculated and supply air is achieved, while maintaining high performance and reducing energy consumption when heating or cooling air.

18 cl, 5 dwg