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Thread: CH BTU Station

  1. #1
    Join Date
    Jul 2014
    Location
    Seattle, WA
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    CH BTU Station

    Finally took the time to take photos of a chiller "BTU Station" that I made last year.
    Typically you use the dP from the chiller supply & return gauges and determine the GPM from the factory chiller pressure-drop flow curve ('reflection' curve). Then you calculate Btu/hr from the dT (typically get the temps from the Chiller display panel or gauges if present).

    The only problem with this approach is that you only get spot readings - sometimes that's ok.
    My BTU station allows you to trend the data. Works pretty good. Avoid soldering your own 1/8" jacks - use the Onset gear (it's a 'jungle' out there ;-). See attached PFD.
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