Aprilaire 8466 Universal Programmable Heat Pump Thermostat

Model 8466 is universal and will control - Standard Systems gas / oil / electric. Single Stage/Heat Pump/Multi-Stage, Millivolt Systems STANDARD FEATURES: Large 4.5 square inch LCD with high contrast for easier reading Controls 3 Stages Heat / 2 Stages Cool Bright, white backlit display is easy to read Easy to use temperature control and override program schedule at anytime Progressive recovery Permanent program retention during power loss Indefinite setpoint Hold Choice of 5/1/1 day programmable, or 5/2 day Displays room temperature, temperature setting and outdoor temperature (with 8052 sensor) simultaneously Removable battery cover for fast, easy replacement Dual fuel operation built in - eliminates need for a dual fuel kit (requires 8052 outdoor temperature sensor) Dual Powered...choice of battery powered or hardwired, for all applications Easy-to-wire terminal block Millivolt compatible