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Can someone identify this taco pump?

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Making weird humming/ticking noises so I want to replace. The installer took off the identification plate! I’m thinking it’s a 006 series but I’m only going by the color. 

Background, hot water tank heating, pump is very very hot to the touch but the inlet/outlet pipes are only warm. Heat coming out is minimal.

Comments

  • Steamhead
    Steamhead Member Posts: 17,012
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    Looks like a 006 to me. The installer failed to read the instruction manual- the motor should be horizontal, not vertical.
    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
    Consulting
    Derheatmeisternightrider0614
  • nightrider0614
    nightrider0614 Member Posts: 3
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    Thanks for the response. in your opinion should I replace the whole unit or rebuild it? 
  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 15,849
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    Depends what is wrong with it. Replacing it is probably the better option
  • Alan (California Radiant) Forbes
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    Bronze (not cast iron) for domestic hot water.
    8.33 lbs./gal. x 60 min./hr. x 20°ΔT = 10,000 BTU's/hour

    Two btu per sq ft for degree difference for a slab
    nightrider0614
  • HVACNUT
    HVACNUT Member Posts: 5,894
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    The pipes might not be hot at the 006 if it's a recirculating line and it's not on.
    Is there an aquastat that controls that circulator?
    Is that electric rigid pipe piped to an accessible junction box? It might be easier to replace it with 14/2 B/X with a ground. Unless the boiler room was spec'd explosion proof.

    If it is a faulty 006, you don't need to replace the whole thing. Drop the pressure to 0 psi and remove the (4) 5/16 hex screws to replace the motor/impeller assembly, and install the new O-ring gasket.
    If you rotate the circulator 90°, the electric would need to be extended. I know you can mount a 007 motor up as long as the system pressure is 20 psi or above. Not sure about the 006. @SteveSan.
    SteveSannightrider0614
  • SteveSan
    SteveSan Member Posts: 239
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    @nightrider0614 More than likely like everyone is saying 006 circ. pump. On the casting you should see some raised numbers. Also, it should be horizontal to the floor. Please give Taco Technical Services a call during normal business hours Mon-Fri 8am-5pm EST 401-942-8000
    nightrider0614
  • hot_rod
    hot_rod Member Posts: 22,505
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    It could be a stone or something in the volute, remove and check it out.

    I think that mounting position is okay with DHW pressures?
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
    nightrider0614
  • SteveSan
    SteveSan Member Posts: 239
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    @hot_rod it is suitable if over 20psi.

    nightrider0614
  • Joe Mattiello
    Joe Mattiello Member Posts: 707
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    sure, does look like 006; cartridge assembly is available, if you want to go that route, of course you can replace the entire pump. before, committing to replacing pump, isolate it if possible, take the pump apart by removing cap screws and see if impeller turns when you turn the pump on? if yes, there's nothing wrong with the pump, it could be air bound which could explain the ticking Noice. going through this simple exercise won't cost you any money and may save you some too. If you need a replacement cartridge assembly, or pump, contact Taco tech support at 401-942-8000 to correctly identify it, and they will refer you to a local rep for price and availability of suitable replacement:)
    Joe Mattiello
    N. E. Regional Manger, Commercial Products
    Taco Comfort Solutions
    Alan (California Radiant) Forbesnightrider0614
  • nightrider0614
    nightrider0614 Member Posts: 3
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    Thank you all, are these numbers decodable? Looks like 194- to me? Tough to get a picture, lol. 
  • SteveSan
    SteveSan Member Posts: 239
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    Unfortunately can't see the numbers clearly. The first set is 194- but tried looking up the second set different ways and nothing comes up.
    nightrider0614