Multi-split fan control

Details Multi-split fan control Multi-split fan control

1995-04-26

1996-07-02

Wayner, William E.

Refrigeration

Automatic control

Of external fluid or means

62428, F25B 3904, F25D 1706

Patent

active

055310761

ABSTRACT:
A compressor discharge pressure control for a unitary outdoor fan, multi-split air conditioning system having multiple compressors, multiple evaporator coils, multiple condenser coils and a single outdoor fan. Pressure comparison circuitry compares the discharge pressures of the compressors to predetermined pressure levels to generate a plurality of pressure state signals. On/off monitoring circuitry monitors the on/off states of the compressors to generate a plurality of compressor state signals. Control circuitry controls the fan in accordance with both sets of signals under a predetermined priority scheme.

REFERENCES:
patent: 3059448 (1962-10-01), McGrath
patent: 4104890 (1978-08-01), Iwasaki
patent: 4326387 (1982-04-01), Friedman
patent: 4643002 (1987-02-01), Dennis et al.
patent: 5247805 (1993-09-01), Dennis

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