Dimensions and technical details 110-240 Volt ~ 50/60 Hertz Two single room ventilation systems with ceramic reservoir for heat recovery Housing colour: white Nominal size of duct: 160 mm Motor wattage: 2.37 / 3.8 / 7.61 W Current consumption: 0.033 / 0.047 / 0.08 A Revolutions per minute: 915 / 1555 / 2330 Airflow rate ventilation mode: 15 / 30 / 50 m³/h Airflow rate recovery mode: 15 / 30 / 50 m³/h Sound pressure level Lp-3m: 12 / 18 / 20 dB(A) Sound pressure level Lp-1m: 21 / 27 / 29 dB(A) Permissible temperature range of air: -15°C to +40°C Heat recovery efficiency: ≤ 92% Protection code: IP24 splashing water protection Protection class: II Weight: 8 kg Front panel: 215 x 250 mm Outer hood: 215 x 250 mm Telescopic tube: Ø 160 mm x 250 - 500 mm Manual shutters Integral humidity sensor Includes G3 filter Includes remote control and wall control panel: 3 fan speeds / off, ventilation mode supply / extract, heat recovery, timer Heat recovery mode: two cycles alternate automatically every 70 seconds Cycle I: Warm air is extracted from the room. The extracted air warms and dampens the heat storage vessel. Cycle II: Fresh air flows through the heat accumulator, absorbing the stored heat and humidity until reaching room temperature.Attention: The item is supplied with a type F plug, you might need an adapter.