• Expressing overhaul timing in a two-dimensional curved graph.

    Overhaul Timing

    LG's recommended overhaul time is based on two years or 10,000 hours of driving.
    Note) A: Initial Failure / B: Stability / C: Wear Failure

  • Key parts of the motor are listed.

    Major Part Replacement

    Replacement of main parts of the compressor and motor.
    Note) A: Bull Gear / B: Pinion Shaft / C: Bearing / D: Impeller

  • Chiller on white background with red arrow below.


    Prevent compressor failures and save energy through product efficiency and performance normalization.

  • A two-dimensional graph about analyzing the time of surges occurred.

    Surge Analysis

    The time of surges occurred in the compressor are analyzed.

  • A two-dimensional graph shows surges prevention logic through self-learning.

    Surge Prevention Logic Application

    Surges are prevented by resetting self-learning surge lines.
    Note) A: Early Surge Line / B: Real Surge Line / C: Map Surge Line

  • A two-dimensional graph shows benefit through surge analysis.


    Prevention of compressor components damage, energy reduction, and stable product operation.

LTD(Cond.) = Cond. Ref. Temp. – Cooling Water Outlet Temperature
LTD(Evap.) = Chilled Water Outlet Temperature – Evap. Ref. Temp.
  • A two-dimensional straight graph representing LTD Analysis.

    LTD Analysis

    LTD lift is an index that shows whether the heat exchange performance of your chiller’s tube is deteriorating (LTD Management Criteria: Below 3°C).

  • An engineer is cleaning dirty tubes.

    Tube Cleaning

    Scales inside the heat tube interfere with heat transfer, reducing the life time and efficiency of the device, so regular cleaning is required.

  • Three-dimensional bar graph, expressing energy efficiency.


    Better performance and reduced energy consumption improve your chiller's reliability (Actual improvement values may ​​vary by site).

  • Oil flows out of a barrel with an open lid, and next to it is a graph about the time of oil replacement.

    Oil Change and Analysis

    The replacement cycle is analyzed through oil differential pressure analysis and replaces it with LG pure oil to secure reliability of parts. Analysis of oil can be added upon customer request.

  • A quarter of the chiller component is exposed, revealing a complex interior filled with intricate metallic parts.


    Prevention of damage to core components due to lack of lubrication

  • NOx icon with arrow indicated down, energy gauge icon with arrow indicated up.

    Low-NOx Burner Replacement

    Reduced nitrogen oxide(NOx) and improved combustion efficiency.

  • On the left is the city turned cloudy due to air pollution, and on the right side is the city with clear air.


    Increased combustion efficiency, reduced fuel costs, and improved air quality.