Control Block Diagram; Indoor Controller Block Diagram - Toshiba RAV-HM301SDTY-E Service Manual

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
Initializing Circuit
Clock Frequency
Oscillator Circuit
Power Supply
Circuit
Converter
(D.C circuit)
Noise Filter
Power Supply
(From Outdoor Unit)

5. CONTROL BLOCK DIAGRAM

M.C.U.
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
Serial Signal Transmitter/Receiver
Outdoor Unit
Serial Signal Communication
(Operation Command and Information)
– 21 –
Indoor Unit Control Unit
Indoor Fan
Motor Control
Float input
Drain pump
Indoor
Fan Motor