Hitachi RAK-25PSEW - Block Diagram

Is
Ip
Id
Ip
Id
BLOCK DIAGRAM
MODEL RAK-25PSEW/RAC-25WSE
RAK-35PSEW/RAC-35WSE
RAK-50PSEW/RAC-50WSE
RAK-25PSES/RAC-25WSE
RAK-35PSES/RAC-35WSE
RAK-50PSES/RAC-50WSE
EEPROM
(AX-17H724V32)
DC fan motor
drive circuit
INDOOR UNIT OUTDOOR UNIT
Buzzer circuit
Indicating lamp
Vertical sweep motor
Horizontal sweep motor
Cooling
Dehumidification
Heating
Fan
Frost wash
Room temperature
Cleaning
Timer
Indoor microcomputer
Stepping motor drive circuit
Wireless remote
controller
Wireless receive
Reset circuit
Control
Power circuit
Room temperature
thermistor
Heat exchanger
thermistor
Oscillator clock
Cleaning Unit
Position defection
weitch
circuit
Indoor / Outdoor
interface circuit
Indoor DC fan motor
/send circuit
Infrared sensor
Cleaning sweep motor
ECO Sensor
1
2
3
Power circuit
Reset circuit
Control power circuit
Compressor
drive circuit
Compressor
motor
Outdoor DC fan motor
drive circuit
Outdoor
Fan motor
Indoor / Outdoor
interface circuit
Overheat thermistor
Defrost thermistor
Outdoor temperature
thermistor
EEPROM
Oscillator clock
circuit
Reversing valve
drive circuit
Relay drive circuit
Electric expansion
valve drive circuit
Electric expansion
valve
Reversing valve
(AX16G814V100)
series
Outdoor microcomputer
Humidity sensor
45