Inverter air conditioner split air conditioner series klarstein windwaker energy efficiency class cooling a energy efficiency class heating a max cooling power 3 600 watt maximum cooling capacity btuh 12 283 btu seasonal energy efficiency ratio seer 61 hourly energy consumption in cooling mode 031 kwh60min max heat output 3 000 w energy efficiency heating 46 indoor sound power level 54 outdoor sound power level 63 annual energy consumption cooli