| 摘要 |
In this chiller system, one unit from a plurality of chillers is designated as a master unit chiller. From among the plurality of chillers, a chiller that requires defrost operation makes a request, to the master unit chiller, for defrost operation. The master unit chiller approves defrost operations for a predetermined, specific number of units from among the chillers that requested defrost operations on a first-come, first-served basis. Chillers waiting for defrost operation make a request, to the master unit chiller, for defrost operation at prescribed intervals. If there are a plurality of chillers waiting for defrost operations, the master unit chiller approves the next defrost operation for chillers in the order from the highest number of defrost operation requests or the longest request time. |
