Automatic control for evaporative coolers and the like

Details Automatic control for evaporative coolers and the like Automatic control for evaporative coolers and the like

1988-10-24

1990-06-12

Tanner, Harry B.

Refrigeration

Automatic control

Gas-liquid contact cooler, fluid flow

62175, 621766, 236 44B, 236 44C, 261 26, F28D 300, F25D 700

Patent

active

049322184

ABSTRACT:
Improved means for automatically controlling an evaporative cooler having a pump and blower, said control system comprising a solid state electronic temperature sensing circuit capable of sensing temperature differences of considerably less than 0.1 degree Fahrenheit, a timer for activating the cooler pump a predetermined period prior to and following activation of the blower, logic means for controlling activation and cycling of said blower, and humidity sensing means for developing an electrical signal indicative of excessive atmospheric humidity for turning off said cooler and controlling an associated air conditioner.

REFERENCES:
patent: 4085594 (1978-04-01), Mayer
patent: 4178764 (1979-12-01), Rowe
patent: 4502288 (1985-03-01), Lynch
patent: 4673028 (1987-06-01), Meland
patent: 4750545 (1988-06-01), Hile et al.

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