Run time criteria to control indoor blower speed

Details Run time criteria to control indoor blower speed Run time criteria to control indoor blower speed

1995-05-23

1997-07-15

Wayner, William E.

Heating systems

Automatic control

Heat source is a reverse cycle refrigerating system or heat...

62231, 165270, G05D 2300, F25B 1900

Patent

active

056475330

ABSTRACT:
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 fraction of a heating cycle is determined, and the speed of the indoor blower is adjusted when the run time fraction crosses a predetermined threshold value, except that the speed of the indoor blower is maintained when the run time fraction is sufficiently changed compared with a previous run time fraction.

REFERENCES:
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patent: 4860552 (1989-08-01), Becky
patent: 5078318 (1992-01-01), Kawai et al.
patent: 5179841 (1993-01-01), Phillips et al.
patent: 5248083 (1993-09-01), Adams et al.
patent: 5332028 (1994-07-01), Marris

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