The control system creates a virtual psychometric chart with consideration of specific elevation entered by the user. Thus, the control strategy is location specific anywhere in the world. This allows the system to instantly plot an effective comfort zone for that location based on a series of desired indoor environmental input parameters, including indoor temperature and humidity.
The system then uses state-of-the art electronic controls and sensors to plot the outdoor condition on the virtual psychometric chart.
The ACSESSTM system combines outdoor conditions and the established comfort zone to instantly select the most efficient cooling strategy, thus assuring the highest equipment efficiency. As ambient conditions or comfort zone inputs change, the system will recalculate and choose the best available cooling strategy. Depending on the equipment, these strategies can include fresh air cooling (economizer), direct evaporative, indirect evaporative, IDEC, and/or DX standard air conditioning.