A++ means that the product is rated in its category in terms of energy efficiency. The Energy Labeling system is based on EU Directive 2010/30/EU. A++ LG PM09EP, Split system, White, Cooling, Fan, Heating, 2500 W, 900 W, 3700 W LG PM09EP. Type: Split system, Product colour: White, Air conditioner functions: Cooling, Fan, Heating. Energy efficiency class (heating) (Average heating season): A+, Annual energy consumption (cooling): 134 kWh, Annual energy consumption (heating) (Average heating season): 840 kWh. Indoor unit noise level (low speed): 27 dB, Indoor unit noise level (high speed): 59 dB, Indoor unit width: 83.7 cm. Outdoor unit sound power level: 65 dB, Outdoor unit noise level: 49 dB, Outdoor unit width: 71.7 cm. Energy efficiency class (cooling) (old): A++