Navien Tankless Water Heater---Well Pump Setting

Discussion in 'Tankless Water Heater Forum' started by JTCA, Nov 1, 2010.

  1. JTCA

    JTCA New Member

    Messages:
    2
    Location:
    Indiana
    I just installed an NR-180A. The system has a well pump. What does the well pump setting do and how in the world do you set it?
    The Operation Manual (page 23) seems like a very poor translation or maybe has the wrong information.
    Can anyone shed some light on this?

    TanklessGasWaterHeater(NR-NP)-Operation 23.jpg
  2. zl700

    zl700 DIY Senior Member

    Messages:
    237
    Location:
    Texas
    Changes in pressure equates to fluctuations in flow. When flow changes, the burner can't react quick enough resulting in water temperature fluctuations and spikes.

    Enabling the well setting evens out the burner operation.

    It is quite easy to turn on following instructions on that page, changing the C to a S (set)

    A NR 180 in Indiana? Hope it's a 1 bath house, 150,000 btu unit for that region is undersized for any more than that.
  3. JTCA

    JTCA New Member

    Messages:
    2
    Location:
    Indiana
    Thanks for the information. Yep, one bath and working very well in fact.
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