Daikin Applied MicroTech II ™ unit controllers provide reliable comfort control of AAF®-HermanNelson unit ventilators. MicroTech II controllers with our Protocol Selectability™ feature provide easy integration to your Building Automation system of choice to exchange up to 40 unit control, monitoring, data logging and alarm information points per unit regardless of the open, standard protocol you prefer. All MicroTech II unit ventilator controllers integrate all factory-installed options including CO2 sensors for outside air modulation per ASHRAE Std. 62-2001. Our part-load, variable airflow option varies fan speed for enhanced comfort control while reducing operating costs. AAF-HermanNelson unit ventilator models are available in floor and ceiling models, air-source air conditioners, air-to-air heat pump and water source heat pump (boiler/tower and geothermal) configurations.