hydronic heating problem

[Steve Schwarz]

600,000 btu commercial boiler in 17 siute 3 story biulding has ghost running through pipeing and rads possible plug some where in system have tried cleaning treatment and treatment also lowering operating limit and high limit (latent heat) but noise still persists any suggestions.

[J FirenzeParticipant]

: 600,000 btu commercial boiler in 17 siute 3 story biulding has ghost running through pipeing and rads possible plug some where in system have tried cleaning treatment and treatment also lowering operating limit and high limit (latent heat) but noise still persists any suggestions.

[J FirenzeParticipant]

Your problem sounds like your steam traps are plugged up and some may have to be replaced. Another thing you might want to check is if you have a Hoffman Loop installed at the boiler. Make sure you have no saging pipes on the return piping. Steam converts back to water and if it is not capable of returning a Hammer Noise developes. If you have a forced hot water system, you may have Expansion problems within the system. If this is the cause, you have your work cut out for you. You must locate where the piping is rubbing to eliminate the noise.

[J FirenzeParticipant]

: : 600,000 btu commercial boiler in 17 siute 3 story biulding has ghost running through pipeing and rads possible plug some where in system have tried cleaning treatment and treatment also lowering operating limit and high limit (latent heat) but noise still persists any suggestions.basic concept: find a local HVAC engineer who specializes in steam and hot water to verify that your system is in conformance with hydronic design specifications. I.e trouble shoot by reverse engineering it. perform a heatloss first then verify line sizes, loads. then verify equipment sizing and connections do not cook book use a spreadsheet problems almost end up being a design problem or equipment failure

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