Patent ID: 9188355
Filing Date: 2015-11-17
Classification: F24F,Y02B

Abstract:
1. A ventilation fan system adapted for responding to an external device making requests for required changes in ventilation to lengthen the life of the system comprising: a plurality of ventilation fans, each ventilation fan comprising on-board computer readable memory for storing static fan on-cycle specification data and dynamic fan status data comprising at least fan time-in-use data; and a fan array controller operatively interconnected to said plurality of ventilation fans and the on-board computer readable memory, said fan array controller adapted for sending and receiving signals to and from each of said ventilation fans, said fan array controller being further adapted for receiving requests and sending status to and from the external device, wherein each said ventilation fan is adapted for selectively responding to control and fan on-cycle and time-in-use data requests received from said fan array controller, and wherein said fan array controller meets ventilation demands by turning on at least one of said plurality of ventilation fans designated inactive and having the greatest available lifetime, by turning off at least one of said plurality of ventilation fans which has been running longer than specified by its fan on-cycle specification data, to lengthen the life of the ventilation fan system.