The following pages provide wiring diagrams for common HVAC equipment configurations.
Conventional Heating and Cooling
Heat Only
Note: Do not jumper Rc or Rh, ecobee3 does this automatically. R can go into either Rc or Rh terminals on your ecobee3.
Heat and Cool
Note: Do not jumper Rc or Rh, ecobee3 does this automatically. R can go into either Rc or Rh terminals on your ecobee3.
Heat and Cool (2 Stage Heat)
Air or Geothermal Heat Pump with Auxiliary Heat
Air or Geothermal Heat Pump (2 Stages) with Auxiliary Heat
Boiler or Radiant System with Air Handler and Conventional Cooling or Heat Pump
Boiler or Radiant System (2 stages) with Air Handler and Conventional Cooling or Heat Pump
Accessory devices
The ecobee3 can control an accessory HVAC device like a humidifier, dehumidifier, or ventilation device from its ACC terminals. If the accessory is internally powered, connect the 24V to ACC+. Also connect the common for the accessory to common on the control board.
Note: You will need to configure the accessory device when you first power on your ecobee3.
PEK thermostat wiring diagram
