CB19 : Central Air Conditioning Controller : Outdoor Unit

1.Display Module: Showcases communication status, indicates the air conditioner brand and count, displays found fresh air units, and reflects this product's equipment parameters. 

2.Function Keys: Enables navigation through display content and offers diverse functionalities through key combinations. 

3.Climate Connect Terminal: Compatible interface with a wide range of AC brands like Daikin, Hitachi, Toshiba, etc. 4.Communication Port (RS485): Aligns with RS485 protocol, interfacing with fresh air and other environment control systems.