– 16 –
7. MICRO-COMPUTER BLOCK DIAGRAM
Fig. 7-1
1/ 50Hz
AC 220/230/240V
Termo. Sensor
Current Sensor
Infrared Signal Receiver
Heat Exchanger Sensor
Infraed
Rays
Clock Frequency
Oscillator Circuit
Operation Mode Selection
AUTO,COOL,DRY,HEAT
FAN ONLY
Thermo Setting
Fan Speed Selection
ECONO.
Initializing Circuit
Operation
(START/STOP)
Main Unit Control Panel
Functions
Louver Control
3-mi
nut
e
Delay at
Rest
art
for Compressor
Motor Revolution Control
Processing (Temperature
Processing)
Timer
C.P.U.
50Hz input
DC5V
Operation Display
Compressor
ON/OFF Signal
Phase Output
Timer Display
ECONO Sign Display
PRE-DEF.Sign Display
Indoor Fan Motor
Outdoor Fan Motor
Compressor
Louver Motor
4-Way Valve
Power Re
lay
Relay Driver
Louver Driver
Power Source
Transformer
Power Photocoupler
Louver Direction Setting
Louver AUTO Swing
OFF TIMER Setting
ON TIMER Setting
