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pressuretrol

I have two onepipe steam boilers. One has the pressuretrol installed on the low water shutoff and the other has it installed on the top of the boiler. Everything I read says to install it on the low water shutoff. I asked a few heating guys and they say it doesn't matter. Who is right? and if it matters, why? Thanks

Comments

  • carol_3
    carol_3 Member Posts: 397


    The installation instructions say to always install the Pressuretrol above the water line, with a steam trap between the boiler and the controller. You can check out the details at customer.honeywell.com--go to the very bottom right corner, enter L404 in the bottom little white box. When the next page appears, select the second pdf, and go to page 5.
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