| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To remarkably reduce the maintenance and management cost of a system by inspecting a controller and a detecting end provided in each air conditioner without dispatching an engineer to a site. <P>SOLUTION: The operating state of each air conditioner 4 and the detection result of the detecting end 10 are taken by a central supervisory control device once a month to inspect whether or not the detection result changes corresponding to a change in operating state. When the detection result does not change corresponding to the change in operating state, some abnormality is determined to have occurred in the controller 9 or the detecting end 10 of the air conditioner 4 to make an operator suitably cope with the abnormality. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
