How to keep hvac condensing water systems free from contamination
Sidestream filtration extracts a portion of the total system volume for filtration on a continuous basis. After several circulation cycles, the total system volume has passed through the sidestream filter.
Field studies have shown that filtration of the system water once per hour will provide for high-quality water in an open system. For a closed system, because the filter is generally only removing system-generated corrosion products, a total volume turnover of once every 4 to 6 hr is all that is required.