Group Number Setting; Cool & Heat Selector; Static Pressure Compensation Mode - LG ARUN050LMC0 Installation Manual

24
Mode Function Option
Content Display1 Content Display2 Content
Cool & Heat oFF op1~
Selector op2
Static
oFF op1~
pressure
op3
compensation
Night low oFF op1~o
noise p12
ODU
-
address
Snow
oFF op1~
removal &
op3
rapid defrost
Target
oFF op1~
pressure
op3
adjusting
* Functions save in EEPROM will be kept continuously, though the
system power was reset.
* Dip switch 3 can be OFF except when installing the only 4 series
indoor units (named ARNU***4).

Group Number setting

Group Number setting for Indoor Units
- Confirm the power of whole system(Indoor Unit, Outdoor Unit) is
OFF, otherwise turn off.
- The communication cables connected to CEN.A and CEN.B terminal
should be connected to central control of Outdoor Unit with care for
their polarity (A-A, B-B ).
- Turn the whole system on.
- Set the group and Indoor Unit number with a wired remote control.
- To control several sets of Indoor Units into a group, set the group ID
from 0 to F for this purpose.
Outdoor Units (External PCB)
SODU.B SODU.A IDU.B IDU.A CEN.B
B(D)
Example) Group number setting
1 F
Group Indoor unit
1 st number indicate the group number
2nd number point out indoor unit number
Group recognizing the central controller
No.0 group (00~0F)
No.1 group (10~1F)
No.2 group (20~2F)
No.3 group (30~3F)
No.4 group (40~4F)
No.5 group (50~5F)
No.6 group (60~6F)
No.7 group (70~7F)
No.8 group (80~8F)
No.9 group (90~9F)
No. A group (A0~AF)
No. B group (B0~BF)
No. C group (C0~CF)
No. D group (D0~DF)
No. E group (E0~EF)
No. F group (F0~FF)
Value Action
Display3 Content Display4 Implement Display5
Change
Selected
- - the set Blank
the option
value
Change
Selected
- - the set Blank
the option
value
Change
Selected
- - the set Blank
the option
value
set Change
- 0~255 the the set Blank
value value
Change
Selected
- - the set Blank
the option
value
Change
Selected
- - the set Blank
the option
value
CEN.A DRY1 DRY2 GND 12V
www.lgcomfortcooling.co.uk
A(C)
Cool & Heat selector
Remarks
Mode setting method
Save in
Master unit PCB DIP switch on : No.5
EEPROM
Save in
EEPROM
Select the mode using '▶', '◀' Button :
"Func" Push the '●' button
Save in
EEPROM
Save in Select the Function using '▶', '◀' Button :
EEPROM
"Fn1" Push the '●' button
Save in
EEPROM
Select the Option using '▶', '◀' Button :
Save in
"oFF","op1","op2" Push the '●' button
EEPROM
Cool & Heat Selection mode is set
Function setting
Switch control
Switch(Phase) Switch(Bottom)
Right Left
Right Right
Left -
Left side Right side
Switch (Phase)
Switch (Bottom)
!
CAUTION
• Ask an authorized technician to setting a function.
• If do not use a function, set an off-mode.
• If use a function, first install a Cool & Heat selector.

Static pressure compensation mode

This function secures the air flow rate of ODU, in case static pressure
has been applied like using duct at fan discharge of ODU.
Static pressure compensation mode setting method
Master unit PCB DIP switch on : No.5
Select the mode using '▶', '◀' Button :
"Func" Push the '●' button
Select the Function using '▶', '◀' Button :
"Fn2" Push the '●' button
Select the Option using '▶', '◀' Button :
"op1~op3" Push the '●' button
Start the Static pressure compensation mode :
Save the selected option value in EEPROM
FAN Maximum RPM of each step
Model
Standard
Max.RPM OP1
OP2
Function
oFF op1(mode)
Not operate Cooling
Not operate Heating
Not operate Fan mode
ARUN04/05/060GSS0
ARUN080LSS0 ARUN10/120S9S
ARUN04/05/060LSS0
650 800
800 850
850 850
op2(mode)
Cooling
Heating
Off
650
700
750