Printed Circuit Board For Rpi-(8.0-20.0)Fsn3(P)E(-F) Units (Pi065-Pi005) - Hitachi RCI-1.0FSR Service Manual

4 Control system

Printed circuit board for RPI-(8.0-20.0)FSN3(P)E(-f) units (PI065-PI005)

4.7 Printed circuit board for RPI-(8.0-20.0)FSN3(P)E(-f) units (PI065-PI005)
YX2 YX5 YX4
R
X2 X5 X4
84 SMGB0137 rev.0 - 05/2021
YX3
CN404
CN403
CN402
CN401
X3
LED indicator
This LED indicates the transmission
LED1 Red status between the indoor unit and
the remote control.
This LED indicates the transmission
LED3 Yellow status between the indoor unit and
the outdoor unit.
LED4 Red PCB power supply
PCB1 Connector indication
PCN1 220 V transformer
PCN2 Internal thermostat for indoor fan motor
PCN3 Fan stoppage alarm signal
PCN6 Drain pump motor (RPI)
PCN7 Terminal board - Power supply
THM1 Air inlet thermistor
THM2 Air outlet thermistor
THM3 Liquid pipe thermistor
Optional connector (for remote temperature
THM4
sensor)
THM5 Gas pipe thermistor
EFR1 Power supply fuse
EF1 Fuse for PCN5 connector
EF4 PCB fuse
CN1 Transformer (20 V)
Terminal board - H-LINK control circuit and
CN2
remote control switch
CN3 Optional input functions
CN7 Optional output functions
CN8 Optional output functions
CN11 Printed circuit board 2 (CN401)
CN17 Printed circuit board 2 (CN404)
CN14 Float switch (RPI)
PCB2 Connector indication
CN401 Printed circuit board 1 (CN11)
CN404 Printed circuit board 1 (CN17)
CN402 Expansion valve control
CN403 Expansion valve control
YX2 Relay for High speed (Terminal X2)
YX5 Relay for S-Low speed (Terminal X5)
YX4 Relay for Low speed (Terminal X4)
YX3 Relay for Medium speed (Terminal X5)
R Terminal board - Fan motor power supply
Switch indication
DSW3 Capacity code
DSW4 Unit model code
DSW5,
Refrigerant cycle number setting
RSW2
DSW6,
Indoor unit number setting
RSW1
DSW7 Fuse recovery and remote control selector