En-12
(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 one 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.
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 no
t set the indoor unit address (IU AD SW) at 64 to 99. It
may result failure.
(3) Remote controller address
Rotary switch (RC AD SW)....Factory setting “0”
When connecting multiple indoor units to one standard
wired remote controller, set the address at RC AD SW in
sequence from 0.
Setting
Setting
range
Type of switch
Remote con-
troller
address
0–15
Setting
example
0
RC AD
Example
If 4 indoor units are connected.
Remote
controller
Indoor unit
Indoor unit
Indoor unit
Indoor unit
RC AD SW
0
RC AD SW
1
RC AD SW
2
RC AD SW
3
RC AD SW
0
1
2
3
4
5
6
7
Address
0
1
2
3
4
5
6
7
RC AD SW
8
9
A
B
C
D
E
F
Address
8
9
10
11
12
13
14
15
]1
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
Code change
Indoor unit
Remote
controller
Confusion
A B C D
A B C D
• Custom code setting for indoor unit
Set the DIP SW SET 3 SW1, SW2, referring to the Table B.
Dip switch
“SET 3”
ON
OFF
SW
1
SW
2
SW
4
SW
3
Table B
Custom code
A (Factory setting)
B
C
D
DIP SW
SET 3 SW1
OFF
ON
OFF
ON
DIP SW
SET 3 SW2
OFF
OFF
ON
ON
]1
7.3. Function setting
• FUNCTION SETTING can be performed with the wired or
wireless remote control.
(The remote control is optional equipment)
• Refer to the wired or wireless remote control manual for
detailed setting information. (Set IU AD, REF AD SW to 0)
• Refer to “7.1. Setting the address” for indoor unit address
and refrigerant circuit address settings.
• Turn the power of the indoor unit ON before starting the
setting.
* Turning on the power indoor units initializes EEV, so make
sure the piping air tight test and vacuuming have been
conducted before turning on the power.
* Also check again to make sure no wiring mistakes were
made before turning on the power.
Function details
Function Function
number
Setting
number
Default
Details
Filter
indicator
interval
11
00
Default
○
Adjust the filter cleaning interval
notification. If the notification is
too early, change to setting 01. If
the notification is too late, change
to setting 02.
01
Longer
02
Shorter
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