AYXP9LSR
2 – 2
2. Outdoor unit
CPU
20A
protection
Fuse detector cirunit
Terminal board temp.fuse
IPM heat sink temp.fuse
15A
protection
Power supply circuit
CPU oscillator circuit
DC overvoltage detection circuit
Outdoor fan drive circuit
4-way valve relay drive circuit
Power transistor module drive circuit
Serial I/O circuit
CPU reset circuit
AC overcurrent detection circuit
Compressor thermo circuit
Heat exchanger pipe thermo circuit
Outdoor temp. thermo. circuit
EEPROM
LED drive circuit
Test mode circuit
Filter
circuit
Smoothing
circuit
Pulse amplitube modulation circuit
AC clock circuit
DC overcurrent detection circuit
IGBT
Unit-unit wiring (AC power
and serial signals)
Rectification
circuit
FAN Control
3.15A
protection
Outdoor fan
4-way valve
Power transistor module
Compressor
Current transformer
Compressor thermistor
Heat exchanger pipe thermistor
Outdoor temperature thermistor
LED