Bosch BCC100 Connected Control Smart Phone Wi-Fi Thermostat - Compatible with Alexa - Touch Screen
- C-WIRE REQUIRED: A C-wire (common wire) is required to power the unit. Two wire systems are not supported. The C-wire is used to provide power to the thermostat and is available on most HVAC systems today that have three or more wires. Third party aftermarket products exist for adding powering options in instances where a C-wire does not exist.