The operation manual for the Economizer Minimum Outdoor Air Controllers (EMOAC) is based on GreenTrol Automation’s 4000 and 5000 hardware architecture. The EMOAC-4000 and EMOAC-5000 use a general purpose input factory configured as an analog input (GP1 configured as AI1) to measure the economizer controller actuator output signal and
an analog output (AO1) to control a proportional actuator.