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Water source heat pump loop and hot water system

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Chuck_17
Chuck_17 Member Posts: 148
in THE MAIN WALL
Water Source heat pump system – I have used a boiler for direct heat add (boiler used only for heat add). I have used a boiler for an indirect heat add (heat exchanger). I don’t think I had a system the hot water system was directly coupled to the heat pump loop (hot water used for entry unit heaters and heating ventilation air). I can’t think of any reason I can’t have the loops directly coupled as long as I have a heat trap. Am I not thinking of something?

(I am talking about a regular water source heat pump loop - not a ground source).

Comments

  • JStar
    JStar Member Posts: 2,752
    Wshp

    If the cooling side of the system is an open tower, the constantly added fresh water can destroy the piping/boiler. I would keep the boiler on its own set of piping, whether a direct add or heat exchanger.
  • Chuck_17
    Chuck_17 Member Posts: 148
    Closed loop.

    Closed circuit cooler. Closed system. I haven't tried to lay it out but the trick part is where to put the expansion tank.
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