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++ Samsung AR24NSPXBWK, Air conditioner indoor unit, White, Cooling, Dehumidifying, Heating, 22000 BTU/h, 24000 BTU/h, R410A Samsung AR24NSPXBWK. Type: Air conditioner indoor unit, Product color: White, Air conditioner functions: Cooling, Dehumidifying, Heating. Energy efficiency class (heating) (Warmer heating season): A, Annual energy consumption (cooling): 373 kWh, Annual energy consumption (heating) (Warmer heating season): 1511 kWh. Indoor unit sound power level: 44 dB, Indoor unit type: Wall-mountable, Indoor unit noise level (low speed): 28 dB. Outdoor unit noise level: 68 dB, Outdoor unit width: 44.5" (113 cm), Outdoor unit depth: 15.1" (38.4 cm). Package width: 12.2" (311 mm), Package depth: 41.9" (1065 mm), Package height: 11.9" (301 mm)