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

Claim 5:
6. The control method of the multi-connected heat recovery air conditioning system according to claim 1, characterized in that in the hot water production mode, in response to the water temperature difference ΔT>20° C., the first outdoor expansion valve, the second outdoor expansion valve, and the third outdoor expansion valve are all opened; in response to the water temperature difference ΔT<5° C., the first outdoor expansion valve is opened and the second outdoor expansion valve and the third outdoor expansion valve are closed; in response to 5° C.≤the water temperature difference ΔT≤20° C., the first outdoor expansion valve and the second outdoor expansion valve are opened and the third outdoor expansion valve is closed.