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Portable air conditioner Bosch Cool 4000 A+ White — 0.8 kWh/h, R290, 3.1 EER, for up to 88 m³
The Bosch Cool 4000 A+ White is a portable air conditioner designed for flexible cooling, dehumidifying and ventilating of indoor spaces up to 88 m³. With an A+ energy class and an hourly cooling consumption of 0.8 kWh, this unit uses R290 refrigerant and delivers an energy efficiency ratio (EER) of 3.1. The compact white cabinet (460×400×800 mm) and an intuitive LED display allow easy placement and control in homes, small offices or temporary spaces where efficient climate control is required.
The unit combines low hourly energy consumption with an above-average EER value for effective cooling while keeping power use moderate. Use of R290 refrigerant ensures a lower global warming potential compared with some traditional refrigerants. The portable design and moderate weight make relocation between rooms simple, and the clear LED interface provides straightforward operation of cooling, dehumidifying and fan modes. The compact dimensions fit typical indoor layouts without occupying excessive floor space.
Place the air conditioner on a flat, stable surface near a window or an exhaust opening that allows the exhaust hose to be routed outside. Connect the unit to a grounded electrical outlet that matches the device rating. Use the LED display to select the desired mode: cooling for temperature reduction, dehumidifying to remove excess moisture or ventilating for air circulation. Adjust temperature and fan speed as needed and ensure the exhaust hose is correctly installed and not overly bent. Empty the condensate collection if required or set up the continuous drainage option if the model supports it.
For efficient operation, keep doors and windows closed while cooling, place the device at least several centimetres from walls or furniture to ensure good airflow, and perform regular cleaning of filters. In rooms close to the maximum recommended volume, combine the portable air conditioner with shading and ventilation measures to maintain comfort and reduce runtime. Follow local safety regulations for handling R290 refrigerant and consult the manual for transport and storage instructions.
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