Dry Contact - LG ARNH10GK2A2 Installation Manual

Accessories Installation

Dry Contact

LG Dry Contact is a solution for automatic control of HVAC system at the owner's best.
In simple words, it's a switch which can be used to turn the unit On/Off after getting the signal from
external sources like key-in lock, door or window switch etc specially used in Hotel rooms.
How to Install Dry Contact
Connect CN_DRY with Control Unit.
- To apply power source through Dry Contact PCB.
- To apply power source directly to external source.
40 Hydro Kit
DRY CONTACT
PCB
CN-CC
RY1
N
2 2
1 1
DRY CONTACT
DRY CONTACT
PCB
PCB
CN-CC
RY2
RY1
N
2 1
2 1
Operation Display
4 4
Error Check Display
3 3
2 2
RY2
1 1
CN_DRY
L
INPUT
LG does not
AC 220V
supply this section
(unit : mm)
Operation Display
4 4
3 3
Error Check Display
2 2
1 1
CN_DRY
L
AC 220V
LG does not
supply this section
Dry contact
Controller
Dry contact
Controller