Dry Contact - LG THERMA V Installation Manual

ACCESSORIES INSTALLATION
118

Dry Contact

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.
How to install dry contact
[Parts of Dry contact]
Dry Contact body
Follow below procedures step 1 ~ step 4.
Step 1. Check if the power of the unit is turned off.
Step 2. Disassemble front panels and distinguish terminal block in Indoor PCB.
Step 3. Connect cable to the unit PCB(CN_CC) fully.
Step 4. Then, Insert harness to the dry contact PCB(CN_INDOOR) firmly as shown below.
Indoor PCB
Indoor PCB
NOTE
• For more information about installing Dry Contact, Please refer installation manual provided
with Dry Contact.
• For system set-up, please read chapter 8.(Especially function code No.6)
Cable(for connecting with IDU)
CN_CC
CN_INDOOR
(For Split)
CN_CC
CN_INDOOR
(For Hydrosplit)
Dry contact
Dry contact