System 4 019 - LG THERMA V Split Comprehensive Application And Installation Manual

• Installing DHW temperature sensor
Length of DHW temperature sensor: 10 m (Provided as default)
Connect DHW temperature sensor to PCB CN-TH4 and insert sensor in the temperature sensor pocket
in tank.
• Installer setting
For DHW operation
Select on installer setup whether to use booster heater alone or both backup heater and booster
heater.
Press 'up' for 3 sec
Press 'up' for 3 sec
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_COMPREHENSIVE APPLICATION AND INSTALLATION MANUAL
Enter installer setup mode, then
Complete Heater priority configuration.
4. System 4
• System diagram
IDU
Purpose: Configuration for DHW exclusive operation. Control separately the heater installed the tank
where DHW operation load is great or fluctuation of conditions is drastic.
Booster heater must be installed if DHW operation requires sterilization.
• Necessary configuration and feature
Dip s/w Separate setup is required
Use the default one attached to indoor
Remote controller
unit
Leaving water temperature Set up by remote controller
control Control of DHW temperature sensor
DHW temperature sensor Temperature sensor that came with DHW
Installation tank needs to be installed.
Booster heater If applied, and tank kit is not used
• Dip s/w Setting
DHW tank
DHW
Temp. sensor
Dip s/w No. 3: On
No installation required
Single temperature
DHW temperature can be set after
initiating heating operation
Separate option
ON
1 2 3 4 5 6 7 8
OFF
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LG Electronics