Reduce water flow
Increase running cost
Prevent plant s break down
Decrease refrigerant charge
Using nitrogen
Pressurised air
Chemical cleaning
Mechanical cleaning
Study about the plant
Judge quality of water
Checking the hardness of water
Fix descaling time for condenser
Decreased power factor
Increased supply voltage
Lower frequency operation
Decreased resistance mode
Allows air from outside
Block dust from outside
Prevent entry of foul smell
Ensure free flow of drain water