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ACCESSORIES INSTALLATION
86
3rd Party Controller
The product can also be linked to 3rd party controller. You can connect external controllers using
Modbus protocol except for LG controller. If 3rd party controller is used, LG controller is not
applied to AWHP simultaneously.
How to install 3
rd
party controller
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 control box(Indoor) of the unit.
Step 3. Check if the harness(White) is inserted fully to the indoor unit PCB (CN_COM).
Step 4. Connect the 3rd party controller to terminal block 2(11/12) completely. (including Meter
interface module)
- For 3 Series
Indoor PCB
- For 4 Series
Indoor PCB
CN_COM
CN_MODBUS
CONTROLLER
CONTROOLER
INTERFACE(LG)
27
28
A
B
rd
3
PARTY
CONTROLLER
(DC 5 V)
1(L)
2(N)
rd
3
PARTY
CONTROOLER
or METER
INTERFACE(LG)
26
27
A
B
rd
3
PARTY
(DC 5 V)
1(L)
2(N)
rd
3
PARTY
or METER
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