

Mineral deposits, silt, and biofilms on wetted surfaces are the main reason for energy losses and accelerated wear in HVAC systems. Continuous removal of solids from the system through automatic screen, disc, or media filters sized according to the application will help in maintaining design-level heat transfer. Cleaning and backwashing triggered by differential pressure will help in unloading the pumps, cutting down on fouling, and lowering chemical treatment. Properly done placement in cooling towers, chillers, and condenser loops could give measurable energy savings and better reliability in operation, with reported efficiency gains as high as 30 %.
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