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Caleffi 280 thermomix

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TimZ
TimZ Member Posts: 18
in THE MAIN WALL
Hi. I purchased a caleffi 280 thermomix last winter that came with a 130 degree sensor cartridge. The temp on the boiler runs up to 130 and then fluctuates between 127-130 for a long time as the system water trickles in. It was suggested to me that a 140 degree cartridge may be safer for boiler protection so I purchased one from supplyhouse.com. Now it runs up to 153 and fluctuates between 149-153. I was expecting for it to hover around 140. Did I get a defective one or am I missing something? Thanks.

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  • STEVEusaPA
    STEVEusaPA Member Posts: 6,505
    I think your ok. Sure 140° would be better.
    You don't say what type of boiler. But if in the spring, you open up the chamber, or check the flue pipe for a conventional boiler and see signs of condensation, change the cartridge.

    There was an error rendering this rich post.

  • TimZ
    TimZ Member Posts: 18
    It’s a Weil McClain cga-3.

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