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• Open the control box cover.
• Open the switch cover.
Rotary switch
Example: "0"
Use an insulated screwdriver to set the dip switches.
Be careful not to make mistakes for switch settings.
(1) Indoor unit address
Rotary switch (IU AD × 1)....Factory setting "0"
Rotary switch (IU AD × 10)....Factory setting "0"
When connecting multiple indoor units to 1 refrigerant system, set the address at IU
AD SW as shown in the Table A
(2) Refrigerant circuit address
Rotary switch (REF AD × 1)....Factory setting "0"
Rotary switch (REF AD × 10)....Factory setting "0"
In the case of multiple refrigerant systems, set REF AD SW as shown in the Table A
for each refrigerant system.
Set to the same refrigerant circuit address as the outdoor unit.
Setting
Setting range
Setting
Indoor unit ad-
0 to 63
example
dress
2
Setting
Refrigerant
0 to 99
example
circuit address
63
Table A
Address
Rotary Switch Setting
Refrigerant
REF AD SW
circuit
× 10
× 1
0
0
0
1
0
1
2
0
2
3
0
3
4
0
4
5
0
5
6
0
6
7
0
7
8
0
8
9
0
9
10
1
0
11
1
1
12
1
2
.
.
.
.
.
.
.
.
.
99
9
9
Do no t set the indoor unit address (IU AD SW) at 64 to 99. It may result in failure .
Open
Switch cover
Rotary switch Ex-
ample: "0"
CAUTION
Type of switch
IU AD × 10
IU AD × 1
REF AD × 10
REF AD × 1
Address
Rotary Switch Setting
Indoor unit
IU AD SW
× 10
0
0
1
0
2
0
3
0
4
0
5
0
6
0
7
0
8
0
9
0
10
1
11
1
12
1
.
.
.
.
.
.
63
6
(3) Remote controller address
i) 3-wire type
Rotary switch (RC AD SW)....Factory setting "0"
When connecting multiple indoor units to 1 standard wired remote controller, set the
address at RC AD SW in sequence from 0.
Setting
Remote controller ad-
dress
Example
If 4 indoor units are connected.
Indoor unit
RC AD SW
0
Remote
controller
RC AD SW
Address
RC AD SW
Address
ii) 2-wire type
Rotary switch (RC AD SW)...Factory setting "0"
Since the remote controller address settings are automatically confi gured, you do not
need to confi gure them.
If confi guring manually, it is necessary to confi gure both the indoor unit and the
remote controller. For details, please refer to the remote controller manual.
7.2. Custom code setting
Selecting the custom code prevents the indoor unit mix-up. (Fig. B)
(Up to 4 codes can be set.)
Perform the setting for both the indoor unit and the remote controller.
Fig. B
Confusion
Indoor unit
Remote
controller
• Custom code setting for indoor unit
Set the DIP switch SET 3 SW1, 2, referring to the Table B.
× 1
0
1
2
3
4
5
6
Table B
7
8
9
0
DIP switch SET 3
SW1
1
2
DIP switch SET 3
.
SW2
.
.
3
Setting range
Type of switch
Setting
0 to 15
example
0
Indoor unit
Indoor unit
RC AD SW
RC AD SW
1
2
0
1
2
3
4
0
1
2
3
4
8
9
A
B
C
8
9
10
11
12
Code change
A
B
A
B
ON
DIP switch "SET3"
OFF
SW
SW
SW
SW
1
2
3
4
Custom code
A (Factory setting)
B
OFF
ON
OFF
OFF
RC AD
Indoor unit
RC AD SW
3
5
6
7
5
6
7
D
E
F
13
14
15
C
D
C
D
C
D
OFF
ON
ON
ON
En-12
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