Patent ID: 11859876
Assignee: GUANGDONG GIWEE TECHNOLOGY CO. LTD.
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 3:
4. The control method of the multi-connected heat recovery air conditioning system according to claim 1, characterized in that in response to the real-time outlet temperature value T2B′>12° C., the opening degree of one of the outdoor expansion valves is reduced, wherein in response to the opening degree of said outdoor expansion valve is adjusted to the minimum but the real-time outlet temperature value T2B′ is still greater than 12° C., the opening degree of another outdoor expansion valve is reduced and the adjustment action is repeated; in response to the real-time outlet temperature value T2B′<6° C., the opening degree of one of the outdoor expansion valves is increased, wherein in response to the opening degree of said outdoor expansion valve is adjusted to the maximum but the real-time outlet temperature value T2B′ is still less than 6° C., the opening degree of another outdoor expansion valve is increased and the adjustment action is repeated; in response to 6° C.≤the real-time outlet temperature value T2B′≤12° C., the opening degree of each outdoor expansion valve is maintained unchanged.