FIELD: heating devices.
SUBSTANCE: invention relates to heating devices, air heat pumps for heating buildings and structures. The air heat pump contains two evaporators, two compressors, capacitors and throttle valves, three-way crane, solar collector, low-potential heat storage battery, four-way valve, high-potential heat storage battery connected with one more specified liquid capacitor to provide possibility of heating a heat carrier in the high-potential heat storage battery. The solar collector connected to low-potential heat storage battery with possibility of additional heating the heat carrier is additionally connected to the high-potential heat storage battery with a possibility of switching the solar collector heat carrier supply from the low-potential heat storage battery to the high-potential heat storage battery, when achieving a set value of a heat carrier temperature in the solar collector. There is possibility of turning off the specified compressor with following turning on the one more specified compressor at heating the heat carrier in the low-potential heat storage battery to the set temperature.
EFFECT: invention is aimed at providing the operation at low ambient temperatures up to -25ºC without significant loss of thermal power with Coefficient of Performance (COP) value of 1.7 to 4.
2 cl, 3 dwg
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