54. FUNCTION OF MAIN COMPONENTS1. ROTARY SWITCH (SELECTOR)Please refer to the part of selector in the chapter 9 (Wiring Diagram).The rotary switch (selector) controls the fan motor’s rotation speed, and has five positions.The function of the five position is as follow.• OFF: This position stops all operations of the air conditioner.• HIGH COOL: This position provides the maximum air flow for rapidcooling, dehumidifying and dust removing operations.(Use this position on sultry summer days.)• LOW COOL: This position provides the minimum air flow for quietcooling, dehumidifying operations.(Use this position on suitable for night-time.)• HIGH FAN: This position provides the maximum air fiow alone fanoperation without cooling operation.• LOW FAN: This position provides the minimum air flow air flow alonefan operation without cooling operation.2. THERMOSTAT (TEMPERATURE CONTROL)• The Thermostat automatically starts and stops operation in order to keepthe room temperature at a proper level, and this results in efficient use ofpower and economical cooling.• Turn clockwise for a cooler room temperature.• Turn counter-clockwise for a warmer room temperature.3. MOTORThe motor is used to rotate the indoor and outdoor fan so that the room air can be recirculated.4. FAN• BLOWER FAN: The Blower draws hot air from the room through the Evaporator and then discharges it back into thecool air. It circulates the room air.• PROPELLER FAN: The propeller draws outdoor air through louvering and cools Condenser, and then blows the hot airout.5. CAPACITORThe Capacitor enlarges the difference of phase between main coil and sub coil so that the Compressor and Fan Motorstarts well.6. ACCUMULATORThe Accumulator blocks the unflow of liquid refrigerant and impurities into the Compressor.SelectorOffLowCoolLowFanHighCoolHighFanThermostatCooler