2812 Operation and Control12.1. Basic FunctionInverter control, which equipped with a microcomputer in determining the most suitable operating mode as time passes,automatically adjusts output power for maximum comfort always. In order to achieve the suitable operating mode, themicrocomputer maintains the set temperature by measuring the temperature of the environment and performing temperatureshifting. The compressor at outdoor unit is operating following the frequency instructed by the microcomputer at indoor unit thatjudging the condition according to internal setting temperature and intake air temperature.12.1.1. Internal Setting TemperatureOnce the operation starts, remote control setting temperature will be taken as base value for temperature shifting processes.These shifting processes are depending on the air conditioner settings and the operation environment. The final shifted valuewill be used as internal setting temperature and it is updated continuously whenever the electrical power is supplied to the unit.12.1.2. Airflow Direction1. There are two types of airflow, vertical airflow (directed by horizontal vane) and horizontal airflow (directed by vertical vanes).2. Control of airflow direction can be automatic (angles of direction is determined by operation mode, heat exchangertemperature and intake air temperature) and manual (angles of direction can be adjusted using remote control).12.1.2.1. Vertical Airflow1. Automatic vertical airflow direction can be set using remote control; the vane swings up and down within the angles as statedabove. For heating mode operation, the angle of the vane depends on the indoor heat exchanger temperature as Figure 1below. When the air conditioner is stopped using remote control, the vane will shift to close position.2. Manual vertical airflow direction can be set using remote control; the angles of the vane are as stated above and the positionsof the vane are as Figure 2 below. When the air conditioner is stopped using remote control, the vane will shift to closeposition.Operation Mode Airflow Direction Vane Angle ()1 2 3 4 5HeatingAuto with Heat ExchangerTemperatureA Upward fix 3B Downward fix 64C Upward fix 3D Downward fix 3Manual 3 17 33 49 63Cooling, Soft Dry and Ion Auto 8 ~ 36Manual 8 15 22 30 36Mode Judgment in Auto Auto 8Manual 8 15 22 30 36