Dual Temperature Water System – Practical Benefits
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September 1, 2025
In many commercial and institutional buildings, a Dual Temperature Water System uses the same supply & return piping to distribute chilled water in summer and hot water in winter.
Practical Advantages
🟢One Piping Network
Example: Instead of running 2 separate lines (chilled + hot), a single set of 2-pipes handles both. This saves 30–40% piping cost on large projects.
Space Saving in Ceiling Shafts
In high-rise offices or hospitals, ceiling space is always tight. Dual temp avoids extra pipes, giving architects more design freedom.
🟢Seasonal Switchover
Facility managers only need to change over the central plant:
Summer → connect chiller
Winter → connect boiler
Example: Many universities and schools in Europe/US run chilled water till September, then switch to hot water in October.
🟢Simpler O&M
One set of pumps, valves, and insulation → fewer points of failure and lower annual maintenance.
🟢Best for Moderate Climates
In cities like Bangalore, Dubai (shoulder seasons), or US Midwest, where heating is needed only a few months, dual temp is cost-effective.
💡 In practice: Dual Temperature Systems are a balance — economical and space-saving, but require planned seasonal changeover. With BMS integration, this changeover is automatic and hassle-free.
September 1, 2025
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