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Operation & Maintenance Manual
GENERAL
This manual consists of information about control, operation, start, service and problem solving of
water-cooling chiller.
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HMI (Human Machine Interface) Operation
You should not change the program without consulting LGE service agent. Wrong program
can harm the machine.
Menu structure of HMI machine is indicated Fig. 1 above. It consists of 7 menus about User inter-
face. HMI is touch screen, and you can move to the menu you want if you click the menu item with
your hand. User Setting, Parameter Setting and Function Setting of menu limit is accessed by certi-
fication code system.
Especially Parameter Setting limits access of operator, and operator only has authority to access to
User Setting.
In case of approval after power is OFF, basically Main Display screen would show up and operator
can move to Main Menu by operating menu item.
Fig. 1