Smart Grid (For Split) - LG THERMA V Installation Manual

ACCESSORIES INSTALLATION
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Smart Grid (For Split)

This product provides SG function for users. It enables to stop internal operation(Heating / DHW)
and control target temperature depending on input signal from power provider.
How to install smart grid
Follow below procedures step 1 ~ step 3.
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 signal cable to terminal block in PCB (TB_SG2, TB_SG1) fully as shown below.
Heating and DHW Operation depend on input signal(SG1 / SG2)
Input Signal
Status
display
SG1 SG2
SGN Open Open
SG1 Close Open
SG2 Open Close
SG3 Close Close
Indoor PCB
Cost
Command
(Electric)
Normal Normal
Operation Price
Operation
High
Off
Price
(Utility lock)
Operation On Low
Recommend Price
Operation On Very Low
Commend Price
TB_SG2
Operation
Heating
Maintain operation
status
Forced internal
operation off
Target temperature
change automatically
depend on SG Mode
value in installer setting
- Step 0 : maintain
target temperature
- Step 1 : increase 2 °C
from target
temperature
- Step 2 : increase 5 °C
from target
temperature
Maintain operation
status
TB_SG1
Domestic How Water
Maintain operation
status
Forced internal
operation off
Target temperature
change automatically
depend on SG Mode
value in install setting
- Step 0 : increase 5 °C
from target
temperature
- Step 1 : increase 5 °C
from target
temperature
- Step 2 : increase 7 °C
from target
temperature
Target temperature
change automatically to
80 °C