En-10
Operation behavior
Connector
Output voltage
Status
CNB01
External output 1
Pins 1-2
0V
Stop
DC 12 V
Operation
External output 2
Pins 1-3
0V
Normal
DC 12 V
Error
External output 3
Pins 1-4
0V
Indoor unit fan stop
DC 12 V
Indoor unit fan operation
6.5.3 Connection methods
Wire modification
(1)
Remove insulation from wire attached to wire kit connector.
(2) Remove insulation from field supplied cable. Use crimp type insulated butt connector
to join field cable and wire kit wire.
(3) Connect the wire with connecting wire with solder.
IMPORTANT:
Be sure to insulate the connection between the wires.
Locally purchased
Solder and insulate the connected parts.
Option parts:
External input /output wire
Connection terminals and wiring arrangement
In following figure, all the possible connectors are connected for description.
In actual installation, you cannot connect all the connectors at once.
1
2
3
CNB01
CNA01
CNA02
CNA03
CNA04
Cable hooks
Cable clamp
7. FIELD SETTING
There are 3 methods for address setting by FIELD SETTING as follows.
Please set by either of the methods.
Each setting method is described in below (1) to (3).
(1) IU AD, REF AD SW settings: This section (7.1. Setting the address)
(2) Remote controller settings:
Refer to the wired or wireless remote controller manual
for detailed setting information. (Set IU AD, REF AD
SW to 0)
(3) Automatic address settings: Refer to the outdoor unit manual for detailed setting
information. (Set IU AD, REF AD SW to 0)
7.1. Setting the address
CAUTION
Use an insulated screwdriver to set the dip switches.
•
Open the cover referring to the figure below. Close and fix the cover after addressing
setting.
(1) Loosen the screw.
(2) Slide the cover and open it.
IU AD
REF AD
RC AD
×10 ×1
×10 ×1
SET3
SET4
For refrigerant
circuit address
For indoor
unit address
7.1.1 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.
7.1.2 Refrigerant circuit address
• Rotary switch (IU AD × 1)...Factory setting “0”
• Rotary switch (IU 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
Type of switch
Indoor unit address
0 to 63
Setting
example 2
IU AD × 10
IU AD × 1
Refrigerant circuit
address
0 to 99
Setting ex-
ample 63
REF AD × 10
REF AD × 1
• If working in an environment where the wireless remote controller can be used, the ad
-
dresses can also be set using the remote controller.
•
If setting the addresses using the wireless remote controller, set the indoor unit address
and refrigerant circuit address to “00”.
(For information on setting using the wireless remote controller.)
Table A
Address
Rotary switch setting
Address
Rotary switch setting
Refrigerant
circuit
REF AD SW
Indoor unit
IU AD SW
× 10
× 1
× 10
× 1
0
0
0
0
0
0
1
0
1
1
0
1
2
0
2
2
0
2
3
0
3
3
0
3
4
0
4
4
0
4
5
0
5
5
0
5
6
0
6
6
0
6
7
0
7
7
0
7
8
0
8
8
0
8
9
0
9
9
0
9
10
1
0
10
1
0
11
1
1
11
1
1
12
1
2
12
1
2
. .
.
. .
.
. .
.
. .
.
. .
.
. .
.
99
9
9
63
6
3
Do not set the indoor unit address (IU AD SW) at 64 to 99.
It may result in failure.
7.2. Custom code setting
•
Selecting the custom code prevents the indoor unit mix-up. (figure below)
(Up to 4 codes can be set.)
•
Perform the setting for both the indoor unit and the remote controller.
Code change
Indoor unit
Remote
controller
Confusion
A B C D
A B C D
• Custom code setting for indoor unit
Set the DIP switch SET3 SW1, 2, referring to the
figure and table below.
IU AD
REF AD
RC AD
×10 ×1
×10 ×1
SET3
SET4
DIP switch “SET3”
SW
1
SW
2
SW
3
SW
4
ON
OFF
DIP switch “SET3”
DIP switch
SET3
Custom code
A (Factory
setting)
B
C
D
SW1
OFF
ON
OFF
ON
SW2
OFF
OFF
ON
ON
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