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FILE NO. SVM-12056 8. CONTROL BLOCK DIAGRAM 8-1. Indoor Unit (For RAS-B22N3KV2-E only) Heat Exchanger Sensor (TCJ) Indoor Unit Control Unit M.C.U. Heat Exchanger Sensor (TC) Room Temperature Sensor (TA) Infrared Rays Signal Receiver and Indication Initializing Circuit Louver Motor Functions • Cold draft preventing Function • 3-minute Delay at Restart for Compressor Louver Motor Drive Control • Fan Motor Starting Control • Processing (Temperature Processing) Indoor Fan Motor Control • Timer Clock Frequency Oscillator Circuit • Serial Signal Communication Indoor Fan Motor • Clean Function Power Supply Circuit Converter (D.C circuit) Noise Filter Serial Signal Transmitter/Receiver Power Supply (From Outdoor Unit) Serial Signal Communication (Operation Command and Information) REMOTE CONTROLLER Remote Controller Operation ( Infrared Rays, 36.7kHz ) Operation Mode Selection AUTO, COOL, DRY, HEAT, FAN Thermo. Setting Fan Speed Selection ON TIMER Setting OFF TIMER Setting Louver AUTO Swing Louver Direction Setting ECO Hi-POWER COMFORT QUIETSLEEP QUIET SLEEP (1, 3, 5, 9 OFF TIMER) – 23 –