Installation check list
Configuration
System Design
Applications
Introduction
• 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.
Press ‘up’ for 3 sec
• 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
• System diagram
DHW tank
DHW
Temp. sensor
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
Dip s/w No. 3: On
Remote controller
Use the default one attached to indoor
unit
No installation required
Leaving water temperature Set up by remote controller
Single temperature
control
Control of DHW temperature sensor
DHW temperature can be set after
initiating heating operation
DHW temperature sensor
Installation
Temperature sensor that came with DHW
tank needs to be installed.
Booster heater
If applied, and tank kit is not used
Separate option
• Dip s/w Setting
OFF
ON
1
2
3
4
5
6
7
8
Enter installer setup mode, then
Complete Heater priority configuration.
018
019
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COMPREHENSIVE APPLICATION AND INSTALLATION MANUAL
LG Electronics
4. System 4
