Control; Composition Of Control - Mitsubishi Electric PUH-P200MYA Technical & Service Manual

7 CONTROL

[1] Composition of Control

1. Function block diagram
3N~
380/400/415 V
50 Hz
outdoor
indoor
Remote
controller
Fuse
Transformer
Fuse
DC5V for
microcomputer
Communication
circuit
DC/DC
Fuse
converter
LED1
<Power>
Current
detection
LED2
<Supply power>
Key input
DC5V
Send/receive
Magnetic
contractor
Fuse
Semiconductor
relay
Fan control
12V
Communication
5V
circuit
LED3
<Indoor/outdoor units communication>
LCD
–23–
Over current Compressor
relay
4-way valve, LEV,
solenoid valve,
crankcase heater
Outdoor fan
Louver
Vane
Semiconductor
Drain pump
relay
Others
Indoor fan
Fan control