AIR CONDITIONING UNIT Russian patent published in 2021 - IPC F25B6/02 F25B30/02 

FIELD: ventilation and air conditioning.

SUBSTANCE: air conditioning device includes a coolant circuit, including a first heat exchanger on the load side and a second heat exchanger on the load side, a first flow switching unit, located upstream of the second heat exchanger, and a second flow switching unit arranged downstream of the second heat exchanger on the load side. First flow switching unit is configured to switch between a first position, in which the coolant communication between the compressor and the second heat exchanger on the load side is blocked, and the second position, wherein the compressor is in the coolant communication with the first heat exchanger on the load side and the second heat exchanger on the load side. Second flow switching unit is configured to switch between the third position, in which the coolant communication between the second heat exchanger on the load side and the heat exchanger on the heat source side is blocked, and the fourth position, in which the first heat exchanger on the load side is in the coolant communication with the second heat exchanger on the load side and the heat exchanger on the heat source side.

EFFECT: technical result is additional reduction of period of time from the beginning of heating operation to supply of warm air into room due to increase of condensation temperature and pressure on high-pressure side in coolant circuit.

9 cl, 20 dwg