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Taco Viridian 2218 circualtors - surging

Boston_2 Member Posts: 107
edited January 2015 in Gas Heating
Could use some help from the wall. I just installed 3 new viridian 2218 Delta-T circulators. I had to replace two of my leaking 007-F4 and through some discounts I got these at a lower price then replacing them with the old cartridge style. These suckers are loud, I was told they were quite (more quite then the bumble bee) but the are much louder then the old ones ( I guess it's all relative). I can live with the sound of the motor but they seem to surging ( a low pitch "ra, ra") sound. Has any one had any experience with these? Any suggestions? I can hear the sound through the whole house. It's actually quitter closer to the pumps then it is further away.


  • Boston, please send me your contact information ([email protected]). We'll get you three new ones ASAP.

    To make a long story short, we found a software issue in our electronics causing this in a very few installs. Seems like you hit a bad series - sorry about that. Didn't see this at all when we did our extensive lab testing.

    This is a new product. The limited "Beta Launch" catches these issues. Fortunately problems with the new VT 2218 have been very minimal, allowing us to work through the solutions very quickly...
  • BobC
    BobC Member Posts: 5,230
    Nice to see the manufacturer stepping up to the plate like this.

    Smith G8-3 with EZ Gas @ 90,000 BTU, Single pipe steam
    Vaporstat with a 12oz cut-out and 4oz cut-in
    3PSI gauge
  • Snowmelt
    Snowmelt Member Posts: 1,295
    Nice job steve,maybe this should be placed in tacos neighborhood.
  • Boston_2
    Boston_2 Member Posts: 107
    Steve was very quick to respond to this issue. He contacted me right away and got a plan in place just as fast. I'm hugely impressed with Taco and Steve.
  • Danscrew
    Danscrew Member Posts: 120
    I have a bumble bee that surges also I switched it from Delta T to constant pressure #2 mode and it still does it ? is this normal ? Did it from day one installed December Thanks Dan
  • Danscrew - I don't believe any system reactive (delta P or delta T) circ should surge or "hunt" - "under normal circumstances". They are all programmed to react kind of slow to avoid this.

    But saying this, rapid changes in system pressures or trying to run the circ below it's minimum speed might cause this.

    Our new VT 2218 has a lower min speed than the Bee. Recommend you replace the Bee with the new VT 2218. We'll cover this under warranty regardless of if system related or not.

    Send me your address and we'll get a new one sent out (give me a couple of weeks so we can be sure we have the last bit of de-bugging done).
  • Danscrew
    Danscrew Member Posts: 120
    Great Steve thank you I have 2 BB in the system would you want both back here is my email [email protected] could not find yours thanks Again Dan
  • Danscrew
    Danscrew Member Posts: 120
    Why can't all companies be like Taco ? Top shelf customer support Unbelivable help from Steve Thompson and his Team above and beyond thank you. Dan
  • Steamhead
    Steamhead Member Posts: 14,850
    I agree, Steve is one of the best.
    All Steamed Up, Inc.
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service