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5 Control System
5.2.3 RAS-(4-6)H(V)NP1E
Connector indication
PCN1
Power supply connector (1~only)
R1,N1,R2,
Power supply and reverse phase detection (3N~
S2,T2
only)
PCN5
Crankcase heater of compressor (oil)
PCN7
Solenoid valve
PCN8
High pressure switch protection
PCN9
Compressor contactor
PCN10
Low pressure switch protection
PCN14
Solenoid valve
PCN100
4-way solenoid valve
PCN406
Power connection between PCB and DIP-IPM
THM7
Outdoor air temperature thermistor
THM8
Pipe evaporation temperature thermistor
THM9
Compressor discharge temperature thermistor
CN1
Input function
CN2
Demand input
CN5A
Micro electronic expansion valve
CN6
Transmission between PCB and DIP-IPM
CN7
External output
CN8
Transmission from outdoor to indoor unit
CN100
Discharge pressure (Pd)
140
SMGB0087 rev.0 - 12/2013
Connector indication
CN404
Line connection between PCB and DIP-IPM
CN405
Motor for fan 2
CN406
Motor for fan 1
EF1,2,3
Power protection
EFR1
Switch indication
DSW1
Test run
DSW2
Auxiliary function setting
DSW3
Capacity code
DSW4/
Refrigerant cycle number
RSW1
DSW5
End terminal resistance
DSW6
Simultaneous / individual operation
LED indication
LED1
Red
Power source for the PCB
This LED indicates the transmission status
LED2
Green
between the indoor unit and the RCS
This LED indicates the transmission status
LED3
Yellow
between the indoor unit and the outdoor
unit
LED4
Red
Power source at 280V for the PCB
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Troubleshooting
