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5. CONTROL BLOCK DIAGRAM
5-1. Indoor Controller Block Diagram
5-1-1. In Case of Connection of Wired (Simple) Remote Controller
Heat Exchanger Sensor (Tcj)
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
Initializing Circuit
Clock Frequency
Oscillator Circuit
Power Supply
Circuit
Converter
(D.C circuit)
Noise Filter
Power Supply
(From Outdoor Unit)
M.C.U.
Indoor Unit Control Unit
Indoor Fan
Motor Control
Indoor
Fan Motor
Serial Signal Transmitter/Receiver
Serial Signal
Communication
Outdoor Unit
(Operation Command and Information)
Float input
Drain pum
p