Patent Number: 6,305,611

Title: Setback tracking thermostat

Abstract: A thermostat receives requests to enter into setback modes of operation whereby at least one setpoint normally used by the thermostat is to be changed at a stipulated start time for each setback mode of operation. The thermostat is operative to enter into a requested setback mode of operation at a time following the requested start time in the event there has been a delay in receiving the request to enter into a setback mode of operation. The thermostat is furthermore operative to track the time that elapses during each setback mode of operation and to report the total accumulated time that has elapsed in response to a request to do so. The thermostat is furthermore operative to set the total accumulated time to zero in response to a request to initialize the total accumulated time.

Inventors: Proffitt; Jerry L. (Wabash, IN), Archacki, Jr.; Raymond J. (Wethersfield, CT)

Assignee: Carrier Corporation

International Classification: G05D 23/19 (20060101); G05D 023/00 (); F24F 011/00 ()

Expiration Date: 10/23/2018