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F05 Answers

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Thank you for posting this!!!! HTP rocks!!!!!

Starch

Comments

  • Chuck Shaw_11
    Chuck Shaw_11 Member Posts: 4
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    F05 Investigation

    On Friday August 2nd, in an effort to assist the installing contractor, John Sawyer of Heat Transfer Products visited the job site mentioned in a previous post (See Munchkin F05).

    John thoroughly reviewed the installation; the piping was an excellent representation of a parallel primary/secondary set up. Even if not as specified by our manual, it was found that the circulator sizing was not the issue. The way this was determined was by looking at the inlet and outlet temperature from the boiler’s status menu, and they could then see the temperature differance was well within a range that John was comfortable with. A review of the fault history on the installation was done through John’s laptop, and he found only the 4 F05 (high temp) codes.

    What was found to be the most likely issue was the possibility that DHW circuit of the Vision 1 installation was able to trap air. The contractor resolved this with the installation of an additional air elimination device. The other issue that was looked at was the possibility that the internal flow check in the circulator on the boiler loop was stuck open; if this were to happen, the DHW circulator would pump through the boiler loop, pump through the closely spaced tees on the primary loop and back through the coil on the indirect, bypassing the boiler. The check was removed, cleaned and returned to its original location to hopefully eliminate this as a possibility.

    I just wanted to let you know the possible cause, and the fix.

    Chuck Shaw
    Heat Transfer Products
  • Brian_18
    Brian_18 Member Posts: 94
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    I'm Impressed

    Very admirable of HTP to step to the plate and proactively work to solve the home owner's difficulty. Can't ask for better factory support. (BTW I'm a home owner, so I don't have any axe to grind here)
  • Steve Ebels_3
    Steve Ebels_3 Member Posts: 1,291
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    Ah

    > On Friday August 2nd, in an effort to assist the

    > installing contractor, John Sawyer of Heat

    > Transfer Products visited the job site mentioned

    > in a previous post (See Munchkin F05).

    >

    > John

    > thoroughly reviewed the installation; the piping

    > was an excellent representation of a parallel

    > primary/secondary set up. It was found that the

    > circulator sizing was not an issue. The way this

    > was determined was by looking at the inlet and

    > outlet temperature from the boiler’s status menu,

    > and they could then see the temperature

    > differance was well within a range that John was

    > comfortable with. A review of the fault history

    > on the installation was done through John’s

    > laptop, and he found only the 4 F05 (high temp)

    > codes.

    >

    > What was found to be the most likely

    > issue was the possibility that DHW circuit of the

    > Vision 1 installation was able to trap air. The

    > contractor resolved this with the installation of

    > an additional air elimination device. The other

    > issue that was looked at was the possibility that

    > the internal flow check in the circulator on the

    > boiler loop was stuck open; if this were to

    > happen, the DHW circulator would pump through the

    > boiler loop, pump through the closely spaced tees

    > on the primary loop and back through the coil on

    > the indirect, bypassing the boiler. The check

    > was removed, cleaned and returned to its original

    > location to hopefully eliminate this as a

    > possibility.

    >

    > I just wanted to let you know the

    > possible cause, and the fix.

    >

    > Chuck Shaw Heat

    > Transfer Products



  • Steve Ebels_3
    Steve Ebels_3 Member Posts: 1,291
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    Ah yes!

    Nothing like a hands/eyes on visit with consideration given to the fact that the devil is often in the details. Nice work!
  • Couderay
    Couderay Member Posts: 314
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    HTP

    Ah what it's all about. HTP has been there for me every time they been needed.
  • Pinball
    Pinball Member Posts: 249
    Options


This discussion has been closed.