The Green Air CT-DH-3 is described for cooling and dehumidifying control. This unit may be used independently or with many other Green Air Products to create an integrated system. The diagram shows how to install the CT-DH-3 for exhaust fan control and CO2 enrichment. When the temperature or humidity rise above the predetermined setting the CT-DH-3 initiates a venting cycle and CO2 generation is momentarily halted. The CST-1 is used to time the frequency and duration of the CO2 emissions. The CT-DH-3P used in this example has a built in photo sensor that prevents CO2 production during darkness periods
