Air conditioner control system

Details Air conditioner control system Air conditioner control system

1976-10-14

1978-04-11

Wayner, William E.

Refrigeration

Automatic control

Refrigeration producer

62229, F25B 4100

Patent

active

040831973

ABSTRACT:
A control system for air conditioning apparatus particularly of the type utilizing a variable displacement compressor, the capacity of which is modulated in response to a cooling demand control signal. More specifically, the capacity of the compressor is controlled in response to a first signal developed in response to the temperature of air within the space to be controlled and a second signal which is indicative of potential freezing of the evaporator coil. Both of these signals are applied to a control valve actuator which directly varies the capacity of the compressor in a modulated fashion above a predetermined combination of coil and air temperatures and reduces the capacity to zero when below said predetermined combination.

REFERENCES:
patent: 2320055 (1943-05-01), Stickel
patent: 3703086 (1972-11-01), Nijo
patent: 3759057 (1973-09-01), English et al.
patent: 3803863 (1974-04-01), Jednacz et al.

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