Hitachi YUTAKI Series - Page 148

Controller pack
Service Manual
146
Safety and control device setting
SMGB0066 rev.0 - 12/2009
Thegurebelowshowstheoutlineofthecontrolsystem
Remote control MCU
Wireless remote control switch
System controller
Wireless transmission circuit
A+D conversion circuit
YUTAKI unit Inverter control MCU
Inverter power section
Protection circuit
Relay drive circuit Inverter control MCU
Electrical control expansion
valve drive circuit
Transver.
circuit
Thermistor for water inlet
Thermistor for water outlet
Thermistor for outdoor temperature
Thermistor for evaporation in heating
Thermistor for evaporation in bolig
Disharge gas thermistor
Suction gas thermistor
Suction gas pressue sensor
Discharge gas pressure sensor
2xSVA
4xCH1
WH RVR WP
MOFMOFMVMV
CT1
MC
Multiple signals
Single signals
Operation signals
Power source
PSC
MC Motor (Camp) CT1 Current transformer
MOF Motor for outdoor fan RVR 4-Way valve
MV Elec.Exap. Valve SVA Solenoid valve
CH Crankase heater PSC Pressure switch for control
WH Water heater WP Water pump