ComfortSense® 8500 Commercial Programmable Thermostat

Lennox Commercial Controller 4


  • Versatile thermostat designed specifically for commercial applications
  • BACnet® compatible—when paired with Lennox® rooftop units featuring the required Prodigy® 2.0 unit controller—for fully integrated control with setpoint adjustments
  • Up to 4 stages of heating and cooling and variable speed operation when used with the Energence® Ultra-High-Efficiency 3- to 6-ton units
  • Programmable for individual days, weekdays/weekends or a consistent week-long schedule
  • Auto changeover between heating and cooling
  • Built-in humidity sensor and optional CO2 sensors for enhanced control capabilities
  • Simplified installation and service with only four wires
  • Enhanced troubleshooting and code compliance with equipment diagnostics