Hitachi RCIM-0.6FSN4 Service Manual

5 Control system
Printed circuit boards for RCI-FSN4 indoor units
SMGB0099 rev.0 - 12/2016
186
! CAUTION
Turn off the power supply before setting the DIP switches. If not, the settings will not be valid.
? NOTE
• The symbol “■” indicates the position of the DIP switches. The gures show the setting before transmission or after selection.
• If the “■” mark is not displayed, this indicates that the position of the pin is not affected.
5.1 Printed circuit boards for RCI-FSN4 indoor units
5.1.1 Printed circuit boards for RCI-(1.0-6.0)FSN4
The indoor unit PCB operates with ve types of DIP switches and two rotary switches. The position is as follows:
LED3
LED1
RSW2
CN6
HA
CN14 CN4 CN3
CN9 CN10
IC1
DSW5
CN11
CN34
DSW4
TP
ON
1234
ON
12
DSW9
ON
123456
DSW6
ON
123456
0
9
8
7
6
5
4
3
2
1
0
9
8
7
6
5
4
3
2
1
ON
123456
RSW1
DSW3
LED6
CN28
CN5THU1
THM5THM4 CN33
LED4
CN2
L3
EF2
+
+
THM3THM2THM1
CN7
CN36 CN8
+
+
+
REG2
L1
SW1
PCN1
TR1
LED5
DM1
T1
PCN6
PCN7
EFS1 EFR1
L5
+
+
ON
12
CN17
DSW7
PCN4
CN1
REG3
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 Red PCB power supply
Connector indication
PCN7 Terminal board 1
THM1 Air inlet thermistor
THM2 Air outlet thermistor
THM3 Freeze protection thermistor
THM5 Gas piping thermistor
CN1 Motor for indoor fan
CN2 Terminal board 2
CN10 Air panel PCB
CN11 Micro-computer control expansion valve
CN14 Float switch
CN17 Air panel motor for automatic swing louver
CN36 Motor for drain discharge mechanism
EFR1 PCB1 fuse
EFS1 PCB1 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

Hitachi RCIM-0.6FSN4 Specifications

General

Brand	Hitachi
Model	RCIM-0.6FSN4
Category	Air Conditioner
Language	English