[. . . ] This unit is still able to operate as a cooler with outdoor temperature as low as -15°C in a nonliving room, such as a computer room, with a room temperature of 16°C or above, and room humidity up to 80%. During cooling operation, when the outdoor temperature drops below -15°C, compressor will be cut off and resume operation again once the temperature rises more than -15°C. [. . . ] FAN mode - To circulate air in the room AUTO mode - For your convenience · During operation mode selection the power indicator blinks. Unit selects operation mode every 30 minutes according to temperature setting, outdoor and room temperature. Detects air quality; e-ion operation activates when air quality is at dirty level. Patrol starts automatically with the unit switched on with Generates negative ions to produce fresh air effect and attract dust which will then be captured at the positively charged e-ion filters. This operation overwrite the operation mode and could be cancelled by pressing . Defrost operation at outdoor unit will result in sudden cold air from indoor unit. Can be activated in all modes and can be cancelled by pressing the respective button again. When ON Timer is set, the unit may start earlier (up to 35 minutes) before the actual set time in order to achieve the desired temperature on time. If timer is cancelled manually or due to power failure, you can restore the previous setting (once power is SET resumed) by pressing . To ensure optimal performance of the unit, cleaning maintenance has to be carried out at regular intervals. Dirty unit may cause malfunction and you may see error code "H99". Do not touch during operation Wipe the unit gently with a soft, dry cloth. [. . . ] For business users in the European Union If you wish to discard electrical and electronic equipment, please contact your dealer or supplier for further information. [Information on Disposal in other Countries outside the European Union] These symbols are only valid in the European Union. [. . . ]