Product Features? Industrial brand parts? Full Chinese menu operation LCD display, without having to remember the code? High and low temperature, sensor failure, equipment failure alarm reporting function? Standard RS485 communication interface, standard communication protocols total electricity? Conditioning expert self-diagnostic function ? automatic air conditioning failure to lift the battery compartment base linkage battery compartment air conditioning cooling / heating temperature set point can be individually were environmentally friendly refrigerants -??? R134a sleep function within the fan base with air conditioning, new air / heat discharge hydrogen linkage function intelligent control functions??