1. Support the indoor unit of multiple brands of VRV/VRF or duct air conditioning systems, such as Daikin, Hitachi, Gree, Mitsubishi Heavy Industries, Midea, Hisense, Toshiba, York, Haier, etc.2. It can be independently connected to air conditioning or coexist with the original panel①. When coexisting with the original panel, master-slave adaptation does not require manual setting. It can also support to connect the third-party panel to replace original panel.3. Support wired centralized control.4. Equipped with Bluetooth upgrade function, firmware upgrade can be carried out according to on-site requirements.5. Provide a dedicated Bluetooth mini program for air conditioning control testing, obtaining air conditioning operating parameters, fault codes etc.6. Support remote fault diagnosis function, can quickly analyze and resolve problems, and fast service response.