Daikin BRC4C65 Ducted Wireless remote controller kit consists of remote controller and receiver unit. This kit fits Daikin ducted units starting with FDXM, FBA and FDA model prefixes, and allows the ducted systems to be controlled via a handheld controller rather than a hardwired controller. The receiver unit normally fits into a ceiling in line of sight with the handheld controller and is connected to the Daikin ducted unit pcb board.
See below the install manual for this product.