En-12
7.1. Setting the address
Manual address setting method
The indoor unit address and the refrigerant circuit
address can also be set up through the wireless
remote controller.
IU AD REF AD RC AD
×10 ×1 ×10 ×1
SET3 SET4
For refrigerant
circuit address
For indoor
unit address
CAUTION
Use an insulated screwdriver to set the DIP
switches.
Setting
Setting
range
Type of switch
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.
0 to 63
Setting example “2”
IU AD × 10 IU AD × 1
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.
0 to 99
Setting example “63”
REF AD × 10 REF AD × 1
• If working in an environ-
ment where the wireless
remote controller can be
used, the addresses 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 set-
ting using the wireless
remote controller.)
* Do not set the indoor
unit address (IU AD
SW) at 64 to 99.
It may result in failure.
Table A
Address
Rotary
switch
setting
Address
Rotary
switch
setting
Refrigerant
circuit
REF AD SW
Indoor unit
IU AD SW
× 10 × 1 × 10 × 1
000000
101101
202202
303303
404404
505505
⁞⁞⁞⁞⁞⁞
10 1 0 10 1 0
11 1 1 11 1 1
⁞⁞⁞⁞⁞⁞
99 9 9 63 6 3
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)
BCD
SW1 OFF ON OFF ON
SW2 OFF OFF ON ON
7.3. Static pressure mode
CAUTION
If the applicable static pressure does not match the static pressure mode, the static
pressure mode may be changed to another mode manually.
Recommended range of external static pressure
ARUH72: 0.20 and 1.20 in WG (50 and 300 Pa)
ARUH96: 0.20 and 1.16 in WG (50 and 290 Pa)
It is necessary to set up a static pressure mode for each usage of static pressure.
Static pressure can be set at site.
Relation between set values and static pressure are as the following table.
• FUNCTION SETTING can be performed with the wired or wireless remote controller.
(The remote controller is optional equipment)
• Refer to the wired or wireless remote controller manual for detailed setting information.
Function
Number
Setting Number
Setting Static Pressure
ARUH72 ARUH96
26
05 SP mode 05 0.20 in WG (50 Pa)
06 SP mode 06 0.24 in WG (60 Pa)
07 SP mode 07 0.28 in WG (70 Pa)
08 SP mode 08 0.32 in WG (80 Pa)
09 SP mode 09 0.36 in WG (90 Pa)
10 SP mode 10 0.40 in WG (100 Pa)
11 SP mode 11 0.44 in WG (110 Pa)
12 SP mode 12 0.48 in WG (120 Pa)
⁞⁞ ⁞
28 SP mode 28 1.12 in WG (280 Pa)
29 SP mode 29 1.16 in WG (290 Pa)
30 SP mode 30 1.20 in WG (300 Pa) (1.16 in WG (290 Pa))
31
Normal SP
(Factory setting)
0.60 in WG (150 Pa)
* Please refer to FAN PERFORMANCE CURVE within Design & Technical Data for the
features of each setting.
7.4. Function setting
• FUNCTION SETTING can be performed with the wired or wireless remote controller.
(The remote controller is optional equipment)
• Refer to the wired or wireless remote controller manual for detailed setting information.
• 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 to the 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
Standard
Adjust the fi lter cleaning interval noti-
fi cation. If the notifi cation is too early,
change to setting 01. If the notifi cation
is too late, change to setting 02.
01 Longer
02 Shorter
Filter indicator
action
13
00 Enable
Enable or disable the fi lter indicator.
Setting 02 is for use with a central
remote controller.
01 Disable
02
Display only on
central remote
controller
(Forbidden) 20 00
(Forbidden) 23 00
(Forbidden) 24 00
Static pres-
sure
26
Refer to 7.3. Static pressure mode
Cool air
temperature
trigger
30
00
Standard
Adjust the cool air trigger temperature.
To lower the trigger temperature,
use setting 01. To raise the trigger
temperature, use setting 02.
01 Adjust (1)
02 Adjust (2)
Heat air
temperature
trigger
31
00
Standard
Adjust the heat air trigger temperature.
To lower the trigger temperature by 6
degrees C, use setting 01. To lower
the trigger temperature by 4 degrees
C, use setting 02. To raise the trigger
temperature, use setting 03.
01 Adjust (1)
02 Adjust (2)
03 Adjust (3)
Auto restart
(*1)
40
00 Enable
Enable or disable automatic system
restart after a power outage.
01 Disable
Cool Air
Prevention
43
00 Super low
Restrain the cold airfl ow with
making the airfl ow lower when
starting heating operation. To
correspond to the ventilation, set
to 01.
01
Follow the
setting on
the remote
controller
9365748336-01_IM.indb Sec1:129365748336-01_IM.indb Sec1:12 9/16/2019 1:14:25 PM9/16/2019 1:14:25 PM
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