发明名称 |
METHOD FOR SWITCHING COOLING AND HEATING VALVES OF MULTI-AIR CONDITIONER USED FOR COOLING AND HEATING |
摘要 |
PURPOSE: A method for switching cooling and heating valves of a multi-air conditioner used for cooling and heating is provided to prevent a high-pressure refrigerant and a low-pressure refrigerant from communicating with each other by switching a high-pressure valve and a low-pressure valve at predetermined intervals, thereby reducing vibration of a pipe. CONSTITUTION: If power is applied to a random indoor unit, it is judged whether an operation mode of the indoor unit is a cooling mode or heating mode(SP1,SP2). In the case of the cooling mode, a high-pressure valve of a valve connected with the indoor unit is closed while a low-pressure valve of the valve is opened(SP3-SP5). In the case of the heating mode, the high-pressure valve of the valve connected with the indoor unit is opened while the low-pressure valve of the valve is closed(SP8-SP10). It is judged whether the operation mode of the indoor unit is changed(SP4,SP9). If so, the high-pressure valve and the low-pressure valves are switched at predetermined intervals(SP6-SP7,SP11-SP12).
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申请公布号 |
KR20040090327(A) |
申请公布日期 |
2004.10.22 |
申请号 |
KR20030024460 |
申请日期 |
2003.04.17 |
申请人 |
LG ELECTRONICS INC. |
发明人 |
CHOI, SEONG O;JANG, SEONG MIN;JANG, SEUNG YONG;JUNG, BAEK YEONG;KIM, SEUNG CHEON;LEE, CHANG SEON;OH, IL GWON;PARK, JONG HAN;PARK, YEONG MIN;YOON, SEOK HO |
分类号 |
F24F11/02;(IPC1-7):F24F11/02 |
主分类号 |
F24F11/02 |
代理机构 |
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