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8. CONTROL BLOCK DIAGRAM
8-1. Indoor Unit
M.C.U.
Indoor Unit Control Unit
From Outdoor Unit
208/230-1-60
Serial Signal Communication
(Operation Command and Information)
Serial Signal Transmitter/Receiver
Converter
(D.C circuit)
Noise Filter
Indoor
Fan Motor
Louver
Motor
Louver Motor
Drive Control
Indoor Fan
Motor Control
Initializing Circuit
Clock Frequency
Oscillator Circuit
Power Supply
Circuit
Infrared Rays, 36.7kHz
Remote Controller
Thermo. Setting
Fan Speed Selection
ON TIMER Setting
OFF TIMER Setting
Louver AUTO Swing
Louver Direction Setting
Operation Mode Selection
AUTO, COOL, DRY, HEAT, FAN
REMOTE CONTROLLER
ECO
Hi-POWER
Heat Exchanger Sensor (Tc)
Room Temperature Sensor (Ta)
Infrared Rays Signal Receiver
and Indication
Functions
• Cold draft preventing Function
• 3-minute Delay at Restart for Compressor
• Fan Motor Starting Control
• Processing
(Temperature Processing)
• Timer
• Serial Signal Communication
• Clean Function
Operation (START/STOP)
COMFORT SLEEP
QUIET
SLEEP (1,3,5,9 OFF TIMER)
FILE NO. SVM-10019