della 12,000 btu mini split air conditioner ductless inverter system, 17 seer 115v energy efficient unit with 1 ton heat pump, pre-charged condenser & full installation kit della features:<br/><br/> smart defrost - with fuzzy logic control box judging frosting or not, the ac unit will proceed to defrost according to indoor pipe temperature.<br/> auto restart -if the ac unit switch off accidentally due to power outage, it will auto restart with the previous set mode when the power resumes.<br/> eco optimized - the frequency of the inverter is limited as well as power output and making the ac unit energy saving.<br/> dehumidification mode - when this mode turn on, the ac unit will choose current temperature then minus 1.8°f as setting temperature and hold steady till the process is done. meanwhile, the ac unit will dehumidify and drain out the water.<br/><br/> package includes:<br/><br/> ductless indoor ac unit<br/> heat pump compressor outdoor unit<br/> remote control<br/> installation kit (includes about 10 ft line set)<br/> manual<br/>