Compressor discharge temperature control for a variable speed co

Details Compressor discharge temperature control for a variable speed co Compressor discharge temperature control for a variable speed co

1990-09-21

1991-10-08

Tanner, Harry B.

Refrigeration

Automatic control

Refrigeration producer

62126, 62158, F25B 4900

Patent

active

050542940

ABSTRACT:
In an air conditioning system with a variable speed compressor drive, the discharge temperature is sensed and if it is found to exceed a predetermined threshold limit for a predetermined period of time, then the compressor speed is reduced by an incremental amount. If this condition persists, the compressor speed will continue to be reduced in incremental steps until the temperature of the discharge gas is reduced to a level below the predetermined threshold limit.

REFERENCES:
patent: 4220010 (1980-09-01), Mueller et al.
patent: 4517812 (1985-05-01), Umezu
patent: 4563878 (1986-01-01), Baglione
patent: 4689967 (1987-09-01), Han et al.
patent: 4735058 (1988-04-01), Umezu et al.

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