Schneider Electric (Viconics) VT8650U5500B Controller R 448A Enhanced Thermal Durability: Constructed from Enhanced Thermal Durability: Constructed from high grade materials to withstand cyclic heating and cooling without warping or structural degradation the materials are rated for HCFC and HFC refrigerant compatibility and are unaffected by POE or mineral oils used in these systems Key Benefits Advanced Occupancy Detection: Integrated PIR sensor automates energy savings by adjusting setpoints based on real time room occupancy The VT8650U5500B programmable controller provides a localized user interface with a customizable color touchscreen