| 摘要 |
PURPOSE: An electronic expansion valve control method of a heat pump system is provided to reduce noise in regulating the opening degree of the electronic expansion valve, and to shorten restarting time of a compressor by minimizing time for balancing pressure of the compressor and for regulating the opening degree of the electronic expansion valve. CONSTITUTION: Plural compressors stop by reducing cooling or heating load(S1,S2), and wait for re-operation in increasing cooling or heating load with detecting cooling or heating load continuously in stopping compressors(S3,S4). The opening degree of an electronic expansion valve is regulated to the predetermined value while waiting for re-operation(S5,S6). The electronic expansion valve is closed in passing the first predetermined time with keeping the predetermined opening degree of the electronic expansion valve(S7,S8). The compressor operates again in closing the electronic expansion valve.
|
