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What setting do you set the white dial on in the pressuretoll

What setting do you set the white dial on in the pressuretoll. The outside is set to .5


  • Jamie Hall
    Jamie Hall Member Posts: 19,402
    1 (one) -- at least in most situations.
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
  • acl10
    acl10 Member Posts: 349
    What is the determinig factor on which setting to set it
  • KC_Jones
    KC_Jones Member Posts: 5,110
    The desire is for the system to operate at the lowest pressure possible, so typically you want all settings on the pressuretrol to be as low as possible.

    The pressuretrol is a safety device. If the boiler is properly sized and properly installed the pressuretrol shouldn't do anything under normal operating conditions.

    In reality many boilers are not sized properly and not installed properly so the pressuretrol becomes an operating device, again want it as low as possible.
    2014 Weil Mclain EG-40
    EcoSteam ES-20 Advanced Boiler Control
    Boiler pictures updated 2/21/15