Hitachi RAS-(4-6)HVRNS2E - Outdoor Units PCB for IVX Series; Ras-(3-12)H(V)Rnm(2)(E)

5 Control System
122
SMGB0064 rev.0 - 08/2011
5.2 Outdoor units PCB
5.2.1 Outdoor units PCB for IVX Series
RAS-(3-12)H(V)RNM(2)(E)
LED indication
LED1 Red
This LED indicates the transmission status between
the indoor unit and the RCS
LED2 Yellow
This LED indicates the transmission status between
the indoor unit and the outdoor unit
LED3 Green Power source for the PCB
Connector indication
PCN1 Fuse
PCN2 PCB1 connection from outdoor to indoor unit
PCN5 Crankcase heater of compressor (oil)
PCN6 Output optional function
PCN7 Output optional function
PCN8 Pressure switch protection
PCN9 Compressor contactor
PCN13 Pressure switch control
THM7 Outdoor air temperature thermistor
THM8 Pipe temperature thermistor
THM9 Compressor temperature thermistor
CN2 Current transformer
CN5A Micro electronic expansion valve
CN8 Transmission from outdoor to indoor unit
CN14 Transmission between PCB1 and ISPM
EFS1, 2 Power protection