1) three working modes: normal mode, economic mode and filter mode. 2) plug-and-play mode is to get easy operation and easy installation. (b type) 3) 24 hours clock display and setup of circulation-cleaning 4) synchronously change or fix color with multiple lights and ozone antivirus system. 5) an additional load aux output (b type) one) overcurrent protection. 9) overcurrent protection of circulating pump (b type) 10) switchbank can select various functions 11) error code hinting Ctn size:45¡á27¡á28cm(3set/ctn)
