Air conditioning, fresh air, floor heating three-in-one panel: equipment has 6 relays output (4 air conditioners, 1 fresh air, 1floor heating, fresh air, and air conditioning can be shared, with two-way control function), 4 physical buttons for switch wind speed, Mode switch, temperature +, temperature -, 1 touch button can be used to switch fresh air, air conditioning and floor heating interface, 485 bus interface is connected to IRACC control protocol, internal temperature and humidity sensor probe, an external temperature, and humidity connection entrance.