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DHW Bolier Coil Question

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HydroAirJoe
HydroAirJoe Member Posts: 27
in THE MAIN WALL
Have a WM bolier with DHW coil, DHW storage tank, HW 7224U Aquastat. My question is, when there is a demand for DHW, what will trigger the burner to fire? I do not see any control in the aquatstat for DHW, just for heating (hi-low-diff).

thxs

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  • HydroAirJoe
    HydroAirJoe Member Posts: 27


    Never mind, I just realized it operates within the low limit and adj low limit range when there is no call for heat.

    During no call for heat:
    If my low is set at 160, my adj low is set at 10, so when the temp drops below 150, the burner fires until the temp
    goes back to 160, correct?
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