Keep Your Chiller Running Properly with Regular Maintenance
Increase Chiller’s Efficiency with Tube Inspection
LTD(Cond.) = Cond. Ref. Temp. – Cooling Water Outlet Temperature
LTD(Evap.) = Chilled Water Outlet Temperature – Evap. Ref. Temp.
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).
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.
Benefit
Better performance and reduced energy consumption improve your chiller's reliability (Actual improvement values may vary by site).
Securing Reliability of the Compressor’s Internal Parts
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.
Benefit
Prevention of damage to core components due to lack of lubrication
Proposing Suitable Compressors Suited for Better Operation
Discharge Superheat Analysis
Site load analysis by analyzing the number of times the upper and lower limits (3 - 10°C) of the discharge superheat are reached.
Annual Operating Zone Analysis
Analysis of operating zones by temperature of chilled water and cooling water inlet.
Benefit
Propose suitable compressor and stable operating environment to secure the reliability of it and energy save. (A:Invertor, B:High Head Comp., C: Large Capa./High Head Chiller, D: Large Capa.Chiller)
Prevent Damage with Pre-Detecting Rotating Parts Failure
Data-based Vibration Analysis
Failure Prediction through vibration trend analysis.
Note) A : Bearing Oil Temperature / B : Oscillation VibrationSpectral Vibration Analysis
Prediction of failure through Hz spectral analysis.
Benefit
Extension of compressor life time and reduction of overhaul costs and downtime through avoiding compressor failure.
Secure Compressor Integrity with Surge Prevention Logic
Surge Analysis
The time of surges occurred in the compressor are analyzed.
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 LineBenefit
Prevention of compressor components damage, energy reduction, and stable product operation.
Improve Heat Exchanger Performance and Chiller Integrity
Absorbent Component Analysis
The analysis checks absorbent alkalinity which can lead to the development of scale and checks appropriate amount of corrosion inhibitors.
Absorbent Purification
Purification of absorbent solution by filter or ionic method.
Benefit
Energy savings and extension of chiller life time.