| 摘要 |
PROBLEM TO BE SOLVED: To extend a service life of an air conditioning system. SOLUTION: The air conditioning system is provided with a plurality of air conditioners comprising indoor units 1 and outdoor units 3, and a controller 11 controlling the plurality of air conditioners. The indoor units 1 of the air conditioners are installed in the same room 7, the controller 11 determines the number of air conditioners to be operated in response to an air conditioning load of the room (S1), it compares cumulative operating times of the air conditioners (S2 and S3), and it operates an air conditioner with a short cumulative operating time in preference (S4). By this, for example, when the air conditioning load is small, unnecessary air conditioners are stopped, and since the cumulative operating times of the air conditioners can be smoothed, the service life as a system composed of the plurality of air conditioners can be extended. COPYRIGHT: (C)2006,JPO&NCIPI |
