RS4220 Value Series - Digital Non-Programmable Thermostat

Wi-Fi Ready.   Add the RS456-WIFI Module for Instant Wi-Fi Upgrade!

  • Universal 2-Heat / 2-Cool with Auto Changeover
  • Control Gas / Electric / Heat Pump / Millivolt equipment
  • Pop-up Wizard to customize thermostat settings with an instant start-up menu
  • Adjustable Temperature Differential and Upstaging
  • High and Low Setpoint Limits
  • Circulating Fan