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Rat's Nest

We've come a long way, haven't we.
Often wrong, never in doubt.

Comments

  • SteamheadSteamhead Posts: 11,161
    Well, at least

    you can replace the relays and transformer in that box- not always true with newer ones.



    What is it used for- zone valves?
    All Steamed Up, Inc.
    "Reducing our country's energy consumption, one system at a time"
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
    Baltimore, MD (USA) and consulting anywhere.
    https://heatinghelp.com/find-a-contractor/detail/all-steamed-up-inc
  • Jamie HallJamie Hall Posts: 6,437
    That's exactly

    what I was thinking, Steamhead!  But I didn't want to sound like I was an old-timer...
    Jamie



    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England.



    Hoffman Equipped System (all original except boiler), Weil-McClain 580, 2.75 gph Carlin, Vapourstat 0.5 -- 6.0 ounces per square inch
  • Controller

    Frank: Those relays control pumps in a 5-unit apartment building.



    When I first saw this, I wanted to sell the owners a more modern pump controller, but after thinking about it, I don't believe it would be in their best interests since those relays and transformer are probably original equipment.  The pumps are all original Grundfos as well.
    Often wrong, never in doubt.
  • SteamheadSteamhead Posts: 11,161
    Do the relays

    also start and stop the burner?
    All Steamed Up, Inc.
    "Reducing our country's energy consumption, one system at a time"
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
    Baltimore, MD (USA) and consulting anywhere.
    https://heatinghelp.com/find-a-contractor/detail/all-steamed-up-inc
  • Burner

    Yes, those relays turn on the burner.
    Often wrong, never in doubt.
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