초록 ▼

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 cool

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.

대표청구항 ▼

An automatic control system for an evaporative cooler having a pump and a blower; said control system comprising: a solid state electronic temperature sensing circuit, a timer responsive to signals from said temperature sensing circuit for activating said pump a predetermined period prior to activat

An automatic control system for an evaporative cooler having a pump and a blower; said control system comprising: a solid state electronic temperature sensing circuit, a timer responsive to signals from said temperature sensing circuit for activating said pump a predetermined period prior to activation of said blower and deactivating said pump after a predetermined period after said blower has ceased, means actuable by a signal from said timer for actiting and cycling said blower between high speed and low speed operation, and logic circuit means for correctly sequencing the operation of said control system.