The Schneider Electric (Viconics) VT7652B5531E Programmable Thermostat is a digital HVAC controller designed to regulate two-stage heating and two-stage cooling operations. It monitors room temperature and automatically controls connected rooftop units by activating heating or cooling stages to maintain the desired comfort level. Featuring programmable scheduling, a built-in PIR occup... https://www.partshnc.com/vt7652b5531e-schneider-electric-viconics-t-stat2h2c-lonprog