Hitachi RCI-1.0FSN3 Service Manual page 205

5 Control system
LED1
LED3
LED4
PCN1
PCN2
PCN3
PCN6
PCN7
THM1
THM2
THM3
THM4
THM5
TP
EFR1
EF4
CN1
CN2
CN3
CN7
CN8
CN11
CN14
CN17
DSW3
DSW4
DSW5, RSW2
DSW7
DWS6, RSW1
DWS8
193
SMGB0077 rev.0 - 01/2013
LED indicator
This LED indicates the transmission status between the indoor unit
Red
and the remote control.
This LED indicates the transmission status between the indoor unit
Yellow
and the outdoor unit.
Green PCB power supply
Connector indication
220 V transformer
Indoor fan motor internal thermostat
Fan stoppage alarm signal
Drain pump motor (RPI)
Power supply (1-R, 2-S, 3-N, 4-E)
Air inlet thermistor
Air outlet thermistor
Liquid pipe thermistor
Remote thermistor (THM-R2 AE)
Gas pipe thermistor
Transformer (pins 1-2: 17.3 V/pins 3-4: 20.8 V)
Outdoor unit H-LINK control circuit
Optional input functions (only 2)
Optional output functions (only 2)
Optional output functions (no. 1, no. 2, only 1)
Expansion valve control
Float switch (RPI)
Swing louver motor
Switch indication
Capacity code
Unit model code
Refrigerant cycle number
Fuse recovery and remote control selector
Indoor unit number settings
Not used
Fuse
Fuse
Not used
5