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Taco 007 replacement process, what am I missing?

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t500
t500 Member Posts: 2
I have a Taco 007-f5 that has started buzzing and makes me think it is going bad.

My circulator pumps are separated from the boiler with valves and wondering is replacement should be as simple as it seems.

Should it be as easy as cutting power to the boiler/pumps, closing off all the valves to the pumps and the water fill, and then swap out the 007 pump? Will I be adding enough air into the system to require a manual bleeding?




Thanks for any advice.

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  • Jamie Hall
    Jamie Hall Member Posts: 23,310
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    Should be that simple. However, I can't quite make out where all the piping goes -- so yes, close all the valves which seem to be on pipes leading towards that pump, then loosen but do not remove all the way one of the flanges. You should get very little water -- if the water keeps coming, there's a valve somewhere which didn't get closed that needs to be, so tighten the flange back up and figure out where the water is coming from.

    Then proceed. Probably not enough air to worry about.
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
    t500EBEBRATT-Ed
  • DCContrarian
    DCContrarian Member Posts: 61
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    They could have made it easier on you by putting isolation valves on both sides of the circulator, but it's not too bad. To isolate the pumps, you need to turn off five valves -- the yellow fill valve on the far left, the red, green, orange and yellow valves on the vertical pipes. Note that the green is off now, you probably want to leave it that way.

    You're going to drain about 18" of 1" pipe which will be a couple cups of water. It will be a neater job if you open the boiler drain at the bottom and drain into a container. However, there's a good chance that old drain is shot and when you open it you won't be able to get it to close without leaking. If this is a system you are responsible for maintaining, buy a new quarter-turn boiler drain and replace it while you have the chance. If it's not, don't touch it and accept the mess.

    I like to put a brass hose cap on drains like that so they can't be accidentally opened.
    t500
  • Joe Mattiello
    Joe Mattiello Member Posts: 707
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    Surprised to hear pump is making noise. Have you checked the system pressure to make sure there’s no air in the system now?
    did the pump just start making noise? Could be system debris fouling bearing faces?
    you can always cal Taco tech support at 401-261-4890
    Joe Mattiello
    N. E. Regional Manger, Commercial Products
    Taco Comfort Solutions
  • t500
    t500 Member Posts: 2
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    Surprised to hear pump is making noise. Have you checked the system pressure to make sure there’s no air in the system now?
    did the pump just start making noise? Could be system debris fouling bearing faces?
    you can always cal Taco tech support at 401-261-4890

    It definitely sounds like it would be bearing related, it is a buzzing sound isolated only at this pump and resonates through the house when running.