Silent operation: only 20 dBA at the minimum speed. Exceptional heating performance, these units can work during winter in heating mode operation at outdoor temperature up to 50°C. The self-cleaning function allows to clean the evaporator which helps to limit the growth of bacteria in the unit and keep the air cleaner.. The 24-hour timer function allows you to set the power on/off time of the air conditioner throughout the day. The temperature sensor located in the remote controller allows the to ensure always the best comfortable temperature. 3D fan ventilation. Mono and multisplit compatible. With Smart kit predisposition. Optional dry contact for remote On-Off