The Predator® VAV w/Variable Speed Fan Controller is certified to fit the LonMark® Space Comfort Controller functional profile – 8502. It adjusts terminal fan speed to match current loading conditions for the best combination of comfort and energy efficiency. It is compatible with state-of-the-art electrically commutated (ECM) fan motors. Application control of zone lighting reduces installation costs and provides energy savings. PID control minimizes offset and maintains tight set point control. Standby mode enables energy savings during occupied hours for rooms that are not always used. When occupants are sensed, the controller quickly responds to maintain comfort levels. Diversity control, through a demand limit input, maximizes comfort by maintaining even air distribution to all zones during morning warm-up or pre-cool operation. It conforms to the LonMark Interoperability Guideslines, enabling information sharing with LonMark products from other vendors.