Damper control in space heating and cooling

Abstract

An amount of time that air has been delivered from an air handler to a space is tracked, and based on the tracked amount of time, at least one turn-on time or one turn-off time of the delivery of air from the air handler to the space is controlled. Other features relate, among other things, to controlling a replacement air vent, and to user interfaces.

1 - 51 . (canceled)  
   
   
       52 . Apparatus comprising 
 a conduit containing    a sensor to measure flow of air in the conduit,    an air flow regulator to control flow of the air in the conduit,    a coupling to couple the conduit to a fresh air intake of the air handler, and    a controller to control the air flow regulator based on the measured air flow.    
   
   
       53 . The apparatus of  claim 52  in which the sensor is in the conduit.  
   
   
       54 . The apparatus of  claim 52  in which the sensor is not in the conduit.  
   
   
       55 . The apparatus of  claim 52  in which the air flow regulator comprises a damper.  
   
   
       56 . The apparatus of  claim 52  in which the sensor comprises a fan.  
   
   
       57 . The apparatus of  claim 52  in which the conduit comprises a fresh air vent.  
   
   
       58 . The apparatus of  claim 52  in which the conduit comprises a return air duct.  
   
   
       59 - 81 . (canceled)