Patent ID: 8596078

Claim:
A method for automatically controlling a blower of an HVAC system, comprising: monitoring at least a first call line from a thermostat to the HVAC system for a presence or an absence of a call signal on at least the first call line over a given monitoring time period; determining an amount of run time that the blower of the HVAC system has been active in response to the presence or absence of the call signal on at least the first call line of the HVAC system over a given measurement time period throughout the given monitoring time period; determining if there is an amount of time left in the monitoring period; adjusting, if there is an amount of time left in the monitoring period, the amount of time left in the monitoring period by a total time of the given measurement period; determining an amount of remaining run time that the blower of the HVAC system is desired to be active during the given monitoring period; determining if an amount of adjusted time remaining in the monitoring period is not equal to the remaining run time that the blower of the HVAC system is to be active; and activating, if the amount of time left in the monitoring period is equal to the determined amount of remaining run time that the blower of the HVAC system is to be active, the blower of the HVAC system.