Navian heater clean procedure

Discussion in 'Water Heater Forum, Tanks' started by grande, Nov 24, 2013.

  1. grande

    grande New Member

    Nov 24, 2013
    South Carolina
    I have a Navian NPE 240 tankless water heater. It has a small .5 gallon tank and a recirculation pump. Its time to flush the system for the first time. Is there an override in the system so I can use the recirculation pump in the unit to do the flush?
  2. Master Plumber Mark

    Master Plumber Mark Master Plumber

    Feb 6, 2005
    Sensitivity be caring and loving to a
    indianapolis indiana - land of the free, home of
    you would have to post a picture of your unit...
    usually there are a couple of bypass valves installed
    under the unit for easy flushing......

    this is normally done by a certified technician with the proper pump
    and fluids to flush through the unit...

    were these installed ???..
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  4. grande

    grande New Member

    Nov 24, 2013
    South Carolina
    It does have flush valves, I installed when I installed the unit. My question is there a way to use the internal recirc. pump to do the flush and not have to have an external pump. ie only run the internal pump in the heater?? I was thinking there might be a pump test or flush mode built into the logic on the controller.
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