The ecobee3 lite Pro, Powered by Carrier provides your customers with freedom and flexibility to manage their home environment. These thermostats help homeowners conserve energy, save money and reduce their environmental impact. They support a furnace with AC and up to 2-stages of heat. For heat pumps (air to air or Geothermal) they support up to four stages of heat (2-stage heat pump, 2-stage auxiliary heat) and two stages of cool. For these systems the thermostats can control a single accessory, such as a humidifier, dehumidifier, ventilator, HRV or ERV. Also, the thermostats can be installed with the PEK if a C wire isn't present. Additionally, the thermostats can control boilers with or without an AC. When connected to a boiler, the thermostats support up to 2-stage of heat and 2-stages of cool and a single accessory, such as a humidifier, dehumidifier, ventilator, HRV or ERV. When used with a boiler they cannot be installed with the PEK if a C wire isn't present, the C wire must come from the air handler, not the boiler.
