| Patent Number |
Title Of Patent |
Date Issued |
| 6149066 |
Method and apparatus for controlling supplemental heat in a heat pump system |
November 21, 2000 |
| A method and apparatus for controlling supplemental heat added to the air stream passing from an indoor coil to an air supply duct of a heat pump system, the heat pump system being of the type that includes an indoor thermostat having a first set point for initiating heat supplied by the |
| 5967411 |
Method and apparatus for controlling supplemental heat in a heat pump system |
October 19, 1999 |
| A method and apparatus for controlling supplemental heat added to the air stream passing from an indoor coil to an air supply duct of a heat pump system, the heat pump system being of the type that includes an indoor thermostat having a first set point for initiating heat supplied by the |
| 5758507 |
Heat pump defrost control |
June 2, 1998 |
| The present invention relates to a method for alleviating a short-term "cold blow" effect in a heat pump heating system. According to a method of the invention, reversing of a system valve in response to the sensing of a defrost condition is delayed by a predetermined time. The amount of |
| 5647533 |
Run time criteria to control indoor blower speed |
July 15, 1997 |
| A method is described of selectively varying the speed of the indoor blower of a heat pump for heating a building or other indoor area when ambient temperature drops below a predetermined level, in order to reduce the cold blow effect of air entering the building. The operating run time |
| 5533568 |
Managing supplementary heat during defrost on heat pumps |
July 9, 1996 |
| A method of controlling a current defrost cycle for an outdoor coil of a heat pump system, the heat pump system having a plurality of supplemental heating elements for heating an air stream passing from an indoor coil to an air supply duct during defrost operation, wherein an initial qua |
