Hydronic CSI: Full flow boiler piping

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Full Flow Piping Hydronic CSI copy


Mechanical Hub and Lochinvar are proud to team up to bring you the second feature in our Hydronics CSI series. Hub friend Paul Rohrs, design and application specialist for Lochinvar, has produced a hydronics design with intentional flaws in it. There are multiple mistakes with this diagram and it is up to you to use your hydronics knowledge to figure out what they are.


This was to be a Full Flow/Variable Primary System. Problem with current boiler piping: New install with six boilers, three boilers on one housekeeping pad, three boilers on another housekeeping pad that is across from it.   Find all flow related and other potential issues.

The contestants who come closest to the answers will be put into a drawing to win a jacket from Lochinvar.

Good luck!

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