Heating control system and multi-line air-conditioning system containing the same manufacturing method

The utility model provides a heating control system and a multi-line air-conditioning system containing the same, which relates to the technical field of air-conditioning, and solves the technical problem of multi-line low-temperature heating operation and the attenuation of heating heat caused by the accumulation of liquid gas. The heating control system includes heat exchange components. The two ends of the high temperature flow path of the heat exchange components are respectively connected to the discharge side and heating demand side of the compressor, and the two ends of the low temperature flow path of the heat exchange components are respectively connected to the gas-liquid separator Connected to the suction side of the compressor; the low-temperature flow path connected to the suction side of the compressor includes a first branch circuit and a second branch circuit arranged in parallel, the first branch circuit is connected to the suction port of the compressor, and the second branch circuit is connected to the suction port of the compressor. The branch circuit is connected to the enthalpy-increasing air supply port of the compressor; the multi-line air-conditioning system includes a heating control system. The utility model avoids the attenuation of heating heat caused by the accumulation of liquid in the gas-liquid separator, increases the circulation of refrigerant during low-temperature heating, reduces the number of defrosting times of the unit, and improves the comfort of heating use.

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