Xylem Bell & Gossett NRF-25 User Manual (English)

Questions and Answers:

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owolfAug 11, 2025
How to fix no circulation in my Xylem Bell & Gossett NRF-25 Water System?
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  josephgomezAug 11, 2025
  If your Xylem Water System has no circulation, there are several potential causes. First, the system may be air-bound, in which case you should vent the system. Second, the impeller or piping could be clogged; locate and remove any obstructions. Third, the system valve may be closed, so open it. Finally, the electrical circuit for the pump may be broken, so check all related low and line voltage circuits.
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Frederick CastanedaAug 17, 2025
Why is there inadequate circulation in my Xylem Bell & Gossett NRF-25?
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  Brittany BlakeAug 17, 2025
  Inadequate circulation in your Xylem Water System can stem from several issues. The system could be air-bound, requiring you to vent it. Alternatively, the impeller or piping might be clogged, necessitating the removal of any obstructions. A damaged impeller would require a pump replacement. If the pump is too small, replace it if it's a single speed model, or switch to a higher setting if it's a three-speed pump. A partially air-bound pump needs to have its casing vented. Finally, improper motor speed should be addressed by checking the wiring and voltage.
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kcraigAug 22, 2025
How to reduce pump or system noise in my Xylem Bell & Gossett NRF-25?
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  Jeffrey SmithAug 23, 2025
  Excessive noise in your Xylem Water System pump can be caused by several factors. Entrained air can cause noise, so vent the system. Pump cavitation can also be a culprit; lower the pump, raise the pressure, or relocate it. Excessive water velocity can also be the cause, so install balancing cocks or parallel piping. Finally, pipe vibration can cause noise, so provide adequate pipe support.
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Lisa JonesAug 29, 2025
What to do if my Xylem Bell & Gossett NRF-25 has seal failures within a year?
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  aguirrejacobAug 29, 2025
  If you're experiencing seal failures within a year in your Xylem Water System, consider these potential causes. Excessive dirt, sand, and oxides may be present, requiring you to clean the system. There might be excessive or improper water treatment; check for proper water treatment recommendations from the pump manufacturer. Pump cavitation could be the issue, stemming from improper selection or compression tank location. Check the pump operation on its curve to avoid overloading, and ensure a high head pump has a compression tank on the suction side. Excessive temperatures can also lead to seal failures, so check the type of seal and maximum operating temperature from the manufacturer. Lastly, ensure pumps are primed before operation to prevent them from running without fluid.
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Michelle GreenSep 3, 2025
What causes premature failure of pump components in a Xylem Bell & Gossett NRF-25 Water System?
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  Brandy HoltSep 3, 2025
  Premature failure of pump components in your Xylem Water System can arise from several factors. It could be due to an improper pump (size/type), in which case you should replace it. The pump's location might be unsuitable, requiring relocation. Excessive water treatment can also lead to premature failure; check the manufacturer’s instructions. If the pump is operating close to or beyond the end point of the curve, balance the system. Finally, excessive piping load can be a factor, so provide proper pipe support.