Installation check listConguration
System Design ApplicationsIntroduction
• Installer setting
Press ‘up’ for 3 sec
[DRY CONTACT]
Cable (1ea)
1.  CN-POWER: Connector
2.  CN-CC: Indoor PCB Connector
3.  CN_DRY (L): DRY CONTROLLER Connector
4. CN_DRY (SIG): DRY CONTROLLER Connector
5. CN_DRY (ERROR CHECK): ERROR Check Display Connector
6. CN_DRY (OPER STATE): Operation Display Connector
1
2
6
5
4
3
• System diagram
Thermostat
IDU
Purpose:  System installation for generic oor heating/cooling based on indoor air temperature sensor 
Radiator/fan coil based heating and cooling
• Necessary conguration and feature
Dip s/w N/A
8 on 
2/3 off
Remote controller
Use the default one attached to indoor 
unit
No installation required
Leaving water tempera
-
ture
Set up by remote controller Single temperature
control Control of leaving water temperature
Thermostat Installation
Thermostat is an option and needs to 
be purchased and installed separately.
Spec : 230V
Installer setting
Remote controller does not need to be 
set up separately.
• Dip s/w Setting
OFF 
ON 
1  23 45678
Manual :  'off ' signal from drycontact Prod-
uct shall be 'off ' and locked. 
'On' signal from dycontact, Prod-
uct shall be free from lock
Auto :  'off ' signal from drycontact Product 
shall be 'off '. 
'On' signal from dycontact, Product 
shall run
032 033
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COMPREHENSIVE APPLICATION AND INSTALLATION MANUAL
LG Electronics
8. System 8