A user-set timer (Changeover Min Time) prevents cycling between the heat and cool modes. The timer begins running when it enters either the heat or cool mode. When it expires, the system may change modes if the other conditions are met (see Changeover logic). The timer restarts when the mode changes.
The timer may be bypassed if no opposing votes occur. For example, if the system has one heat and two cool votes and the current system operating mode has just changed to cool and if the two cool votes are removed, the system immediately switches to heat, thereby bypassing the timer.