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5 Control system
Printed circuit boards for RCIM-FSN4(E) indoor units
SMGB0099 rev.0 - 12/2016
187
5
5.2 Printed circuit boards for RCIM-FSN4(E) indoor units
The indoor unit PCB operates with five types of DIP switches and two rotary switches. The position is as follows:
LED indicator
LED 1
Red
This LED indicates the transmission status between the indoor unit and the remote control
LED 2
Yellow
This LED indic*ates the transmission status between the indoor unit and the outdoor unit
LED 3
Red
PCB power supply
Connector indication
CN3
Optional connector (For signal input)
CN7, 8
Optional connector (For signal output)
CN10
Optional connector (For motion sensor)
DSW3, 4, 7, 9
Dip switch for setting
EFR1,2
Fuses
EF2
Fuse
MIF
Motor for indoor fan
MS
Motor for automatic swing louver
MV
Micro-computer control expansion valve
PCB1
Printed circuit board
RSW1
Rotary switch for unit number setting (Ones digit)
DSW6
Dip switch for unit number setting (Tens digit)
RSW2
Rotary switch for refrigerant cycle number setting (Ones difit)
DSW5
Dip switch for refrigerant cycle number setting (Tens digit)
TB1, 2
Terminal block
THM1~3, 5
Thermistor
THM4
Optional connector (For remote temperature sensor)
CN4~6, HA, PCN4
Reserved connector on PCB