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5 Control system
Printed circuit board for complementary systems
SMGB0099 rev.0 - 12/2016
195
5
5.9 Printed circuit board for complementary systems
5.9.1 Printed circuit board for KPI
PCB1 LED indicator
LED1
Red
This LED indicates the transmission status between the indoor unit and the remote control.
LED3
Yellow
This LED indicates the transmission status between the indoor unit and the outdoor unit.
LED4
Green
PCB power supply
PCB2 LED indicator
LED1
Yellow
H-LINK transmission 1
LED2
Green
PCB power supply
LED3
Yellow
H-LINK transmission 2
PCB1 Connector indication
PCN1
230V transformer
PCN3
Operation signal for electric heater installation
PCN7
TB1 and PCB2
PCN10
Damper
THM1
Air outlet thermistor
THM2
Air inlet thermistor
THM3
Liquid pipe thermistor
THM5
Gas pipe thermistor
CN1
Transformer
CN2
TB1 and PCB2
CN11
Expansion valve
CN14
Float switch
EFR1
PCB1 fuse
EFS1
PCB1 fuse
EF3
PCB1 fuse
PCB2 Connector indication
PCN1
TB1 and PCB1
THM1
Coil inlet thermistor
THM2
Coil outlet thermistor
CN1
TB1 and PCB1
CN2
CO2 sensor 4-20 mA
CN3
CO2 sensor 0-10 V
CN4
CO2 sensor ON/OFF
CN5
Motor for fan 1
CN6
Motor for fan 2
EF1
PCB2 fuse
Switch indication
DSW3
Capacity code
DSW4
Unit model code
DSW5, RSW2
Refrigerant cycle number
DWS6, RSW1
Indoor unit number settings
DSW7
Fuse re-establishing