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Water treatment and control
When the Circulating cooling water runs for a long time, it will produce algae, and salinity will rise, resulting in
heat exchanger fouling, which will affect the heat transfer efciency. It is better to process timely. Electronic water
treatment meters should be included for scale resistance protection and water quality stabilization. They have been
widely applied in engineering now. Therefore the electronic water treatment meter is preferred in the cooling water
system design. You will experience accumulation of sludge in the Water Cooled VRF water system after operation
(caused by dust in the air), which needs regular cleaning (generally one time a year). Professional central AC water
system cleaning agent is recommended.
Water quality control
Item Standard requirements Inuencing factors
Standard
PH 7.5-9.0 ○/□
Conductivity ≤200uv/cm(25°C) ○/□
Chlorine ion ≤50ppm □
Sulfate ion ≤50ppm □
Total iron ≤0.3ppm □
Alkali ion ≤50ppm □
Total hardness ≤50ppm ○
Reference
Sulon / □
Ammonium ion / □
Silicon ≤30ppm ○
Notes: ○: scaling □: erosion
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