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K2 WTC combi boiler

rohanrohan Posts: 5Member
I'm having trouble locking my boiler in high/low fire for combustion analysis. Also, manual shows how to install flue attenuator with cpvc flue pipe but as per their options I've used PolyVent piping. I don't think it'll fit in the polyvent socket.
overkill is under rated

Comments

  • Danny ScullyDanny Scully Posts: 1,153Member
    Having trouble as in you don’t know how to lock it or it won’t stay locked long enough to read?
  • ZmanZman Posts: 4,813Member
    I am not familiar with that model. Sometimes you need to give it a big enough load so it won't overheat.
    "If you can't explain it simply, you don't understand it well enough"
    Albert Einstein
  • rohanrohan Posts: 5Member

    Having trouble as in you don’t know how to lock it or it won’t stay locked long enough to read?

    It won't stay on high fire more than a few moments. I tried with all three zones calling, then I tried wth dhw call.
    overkill is under rated
  • rohanrohan Posts: 5Member
    FYI- TECH says the harmonic noises can be resolved by removing the 1.5" pvc pipe on the blower intake. Worked for me. I don't have to worry about installing the attenuator.
    overkill is under rated
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