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Commercial Hot Water for Heating Coils

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John West
John West Member Posts: 3
in THE MAIN WALL
My Question involves Expansion Tanks in Hot water Heating for Commercial Buildings.
We have a couple that loses its Pressure--Over pressurizes the system and must be Drained and Refilled with air pocket--There is no water Leakage--What is the Best solution in finding Leaks in these systems.

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  • Brad White_185
    Brad White_185 Member Posts: 265
    Where is the expansion tank

    connection relative to the circulating pump(s)?

    What is the cold operating pressure versus the normal hot operating pressure? Does the relief valve ever lift off?

    You say "a couple"- I assume meaning expansion tanks- are these in the very same system or are we talking about multiple systems?
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