Portable air conditioner monobloc air conditioner series delonghi nf delonghi pac w delonghi pinguino energy efficiency class cooling a max cooling power 2 400 watt maximum cooling capacity btuh 8 189 btu energy efficiency cooling eer 26 hourly energy consumption in cooling mode 09 kwh60min annual energy consumption cooling 450 kwh maximum sound pressure level internal unit 52 db power type cooling dehumidifying cooling method air cooling operation