Outdoor Units Pcb For Ivx Series; Ras-(3-12)H(V)Rnm(2)(E) - Hitachi RAS-(3-6)HVRNM2E Service Manual

5 Control System
5.2 Outdoor units PCB
5.2.1 Outdoor units PCB for IVX Series

RAS-(3-12)H(V)RNM(2)(E)

LED indication
This LED indicates the transmission status between
LED1 Red
This LED indicates the transmission status between
LED2 Yellow
LED3 Green
PCN1
PCN2
PCN5
PCN6
PCN7
PCN8
PCN9
PCN13
THM7
THM8
THM9
CN2
CN5A
CN8
CN14
EFS1, 2
122
SMGB0064 rev.0 - 08/2011
the indoor unit and the RCS
the indoor unit and the outdoor unit
Power source for the PCB
Connector indication
PCB1 connection from outdoor to indoor unit
Fuse
Crankcase heater of compressor (oil)
Output optional function
Output optional function
Pressure switch protection
Compressor contactor
Pressure switch control
Outdoor air temperature thermistor
Pipe temperature thermistor
Compressor temperature thermistor
Current transformer
Micro electronic expansion valve
Transmission from outdoor to indoor unit
Transmission between PCB1 and ISPM
Power protection