Heat pump with improved performance in heating mode

Details Heat pump with improved performance in heating mode Heat pump with improved performance in heating mode

2005-06-21

2005-06-21

Tanner, Harry B. (Department: 3744)

Refrigeration

Automatic control

Selective heating or cooling

C062S181000, C062S186000

Reexamination Certificate

active

06907745

ABSTRACT:
A heat pump having an indoor coil that operates as a condenser when the system is in a heating mode and an outdoor coil that operates as an evaporator when the system is in the heating mode. A variable speed indoor fan is used to move supply air over the indoor coil and a temperature sensor is arranged to provide ambient outdoor temperature data to a programmable computer. The computer contains a schedule for continuously adjusting the speed of the indoor fan in response to changes in the ambient temperature so as to maintain the temperature of the supply air at a constant level. In doing so, the compressor discharge pressure is also maintained within allowable limits and is held substantially constant.

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patent: 6131402 (2000-10-01), Mills, Jr. et al.
patent: 0 509 952 (1992-10-01), None
patent: 0 962 715 (1999-08-01), None
patent: 0 962 715 (2002-08-01), None

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