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  1. Replies
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    You obviously have the memo, and I have nothing...

    You obviously have the memo, and I have nothing to add to your knowledge on testing the HES.
  2. What is really strange, they were only installed...

    What is really strange, they were only installed on the 4 ton units (according to the parts list).
  3. Thanks for that info. From the parts list, it...

    Thanks for that info.

    From the parts list, it looks like it is a check valve. Do not ask me why, because I do not know. :)

    Check your email.
  4. Any chance you can provide the model number?

    Any chance you can provide the model number?
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    Part # BLW00737 which has been superseded to #...

    Part # BLW00737 which has been superseded to # BLW00362.

    Check your email.
  6. Good to know. Gotta love the tight relationship...

    Good to know. Gotta love the tight relationship with the distributor.
  7. So your 9th week of 2010 unit (0910 manufacturer...

    So your 9th week of 2010 unit (0910 manufacturer date), does fall within the dates listed on the bulletin.

    I cannot speak to your specific pricing, as it is different for each area of the country,...
  8. We do not provide manufacturer Service Bulletins...

    We do not provide manufacturer Service Bulletins in this forum, but if you can post the Serial Number of your unit, I can tell you if it falls within the range of units under the scope of this...
  9. Replies
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    What is the model number of the unit this fan is...

    What is the model number of the unit this fan is installed in?
  10. :cheers:

    :cheers:
  11. See attachment. OOPS! Forgot this was in the...

    See attachment.

    OOPS! Forgot this was in the "OPEN" forum.

    I took down the manual. If you haven't down loaded it yet, send me an email (address is in my profile) and I will get it right off to...
  12. Replies
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    Its a package unit. Check your inbox.

    Its a package unit. Check your inbox.
  13. Replies
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    You are correct. It is an old GE unit, not...

    You are correct. It is an old GE unit, not Carrier.
  14. If you are talking about applying for Pro...

    If you are talking about applying for Pro membership - see link.

    https://hvac-talk.com/vbb/showthread.php?116113-How-to-apply-for-Professional-Membership
  15. That was given back in post #6. TUH2B080A9V3VA...

    That was given back in post #6.

    TUH2B080A9V3VA (80,000 btuh input on second stage).
  16. Page 10 of the pdf I sent you on TESP testing has...

    Page 10 of the pdf I sent you on TESP testing has what tools are required.
  17. Any company that puts in a higher temp limit...

    Any company that puts in a higher temp limit without truly investigating the cause, is just putting a bandage on the problem, not solving it.

    It is great to see that you want to find the route...
  18. The gas valve has to reference some starting...

    The gas valve has to reference some starting point (pressure) in order for its adjustment to be accurate.

    On furnaces with non sealed combustion chambers (80% and less efficient furnaces), this...
  19. .

    .
  20. Was that the underside of the clean coil too...

    Was that the underside of the clean coil too (inside of the V), or did you just check the outside (part easiest to see)?
  21. The Installers Guide does allow for this unit to...

    The Installers Guide does allow for this unit to be installed in a "Non Direct Vent" application as long as it meets the "unconfined space" requirements. See page 16 of the manual I sent you.
  22. Check your inbox. I sent you the Installers Guide...

    Check your inbox. I sent you the Installers Guide for this unit.
  23. Thanks for that model number. Did you "TEE"...

    Thanks for that model number.

    Did you "TEE" your manometer into the burner box when you checked your manifold pressure?

    Here is the NOTE in the Installers Guide for this unit when testing...
  24. The O2 probably changed because the unit switched...

    The O2 probably changed because the unit switched from 1st to 2nd stage.

    There is no way at 2.0" wc gas pressure you have an O2 level below 6%.

    Please post the model number of this unit.
  25. Replies
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    The good news is, those are 2 of the 3 most...

    The good news is, those are 2 of the 3 most useless lines on the entire analyzer (CO2, Efficiency and CO Air Free).

    Those numbers are either calculated based on actual O2 readings (CO2 and CO Air...
  26. Yes, but If the distributor who is sponsoring the...

    Yes, but If the distributor who is sponsoring the course has a class room set up with a furnace, part of day 3 is hands on testing using a combustion analyzer, and seeing how changes in gas pressure...
  27. Replies
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    I am not a spokesman for NCI, so please don't...

    I am not a spokesman for NCI, so please don't quote me on what I said before, I just know they have done it that way in the past before COVID, and not sure if it is the same now.

    I don't think...
  28. Replies
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    The latest I've heard is they want to try and...

    The latest I've heard is they want to try and start back up early next year, but the problem they are having is the distributors that hold the classes, don't want a large group of people invading...
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    There are a few publications out there that will...

    There are a few publications out there that will give you general numbers to look for when doing combustion testing, but the best way to learn this subject, is by attending a CO Safety and Combustion...
  30. Thread: Unsteady CO

    by rundawg
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    403

    Thanks for the model number. Question? ...

    Thanks for the model number.

    Question?

    Does your unit have the “Flue Hood” and “Combustion Air Inlet Hood” as shown in the attached pdf?

    These parts are shipped with the unit, but need to...
  31. Thread: Unsteady CO

    by rundawg
    Replies
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    403

    Because the unit was most likely way under fired...

    Because the unit was most likely way under fired at that manifold pressure setting, and he wants a unit that performs to manufacture specs.

    Now if it takes lowering the gas pressure to 3.5" wc to...
  32. Thread: Unsteady CO

    by rundawg
    Replies
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    403

    The 120 ppm CO on light off is perfectly...

    The 120 ppm CO on light off is perfectly acceptable.

    Being this is a package unit, “Roller Coaster” CO is usually due to recirculating of flue gases due to wind or other external factors.

    O2...
  33. Replies
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    I have a been able to pull up the specs on those...

    I have a been able to pull up the specs on those condenser fan motors. Just need him to send me an email, or like most PRO's, put an email address in his profile.
  34. Replies
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    If you put an email address in your profile (like...

    If you put an email address in your profile (like the Pros do), or send me an email (address is in my profile), I should be able to assist.

    We do not post Technical Manuals or parts info in this...
  35. Replies
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    This is just your basic package heat pump - see...

    This is just your basic package heat pump - see attachment.

    OP:

    My experience is there was most likely minimal damage to the unit itself, as most the condensate will usually still drained out...
  36. I can not explain the mechanics of it, but York...

    I can not explain the mechanics of it, but York states in their installation manual on these older units that the manifold pressure must be checked with the “screw-off cap” for the gas valve pressure...
  37. Replies
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    Looks like a typical package unit after 10 +...

    Looks like a typical package unit after 10 + years of service..

    The top to your unit can easily be removed to visually inspect the heat exchanger (HX).

    I wouldn't even consider replacing the...
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    It looks like something in the 38E** series....

    It looks like something in the 38E** series. Those were around in the early 2000's, and were 12-13 SEER units.

    If you can get a model number off the indoor unit, it may be possible to see what...
  39. The G7 series had a bulletin about issues with...

    The G7 series had a bulletin about issues with the Main Limit between Jan and Feb 2009, but I have never seen one for the G6 series.
  40. The AC coil is "EXTERNAL" to the furnace and...

    The AC coil is "EXTERNAL" to the furnace and needs to be included in the Total External Static Pressure test.

    The return probe should be between the filter and the blower (which is where you have...
  41. Then your TESP is higher than 0.60" wc.

    Then your TESP is higher than 0.60" wc.
  42. That is the limit specified in the parts list for...

    That is the limit specified in the parts list for this unit.

    I do have a couple questions:

    What were the specs on the motor you replaced - RPM, HP, FLA?

    Where are you placing your static...
  43. Replies
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    No, I would not recommend that technique. ...

    No, I would not recommend that technique.

    Drill a hole after the inducer, install your approved 636 access Tee, or test at the termination of the vent (last resort).
  44. Replies
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    I have not used them, but I like the idea of...

    I have not used them, but I like the idea of using a non corrosive plug that can be used on both CAT I and CAT IV applications.

    When I run out of my current plugs, I will have to order a bag of...
  45. Replies
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    12 inches. That is what service is all about....

    12 inches.

    That is what service is all about. Making sure the system is "Safe and Efficient".
  46. Replies
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    When determining if you are "under-fired",...

    When determining if you are "under-fired", "over-fired", or if you have a "heat transfer" problem.

    Combustion analysis isn't just about measuring the CO levels in the flue gas.

    CO is only one...
  47. Replies
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    O.K., if you are uncomfortable with drilling a...

    O.K., if you are uncomfortable with drilling a test hole, install one of these - see attachment.
  48. Replies
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    Yes you do. I drill a 3/8" hole in the pvc...

    Yes you do.

    I drill a 3/8" hole in the pvc with a unibit, then tap it with a pipe thread tap. You can then thread the probe collar from your analyzer into the hole and tighten down the probe for...
  49. Replies
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    If you don't mind me asking, as home owner, why...

    If you don't mind me asking, as home owner, why are you concerned about this? Did your tech measure CO at the termination of the flue?

    A technician who is trained in combustion analysis, will...
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    Thanks for that update. That makes about 35'...

    Thanks for that update.

    That makes about 35' of equivalent length then (5 elbows x 5 feet = 25 feet plus 10 feet of pipe = 35 ft).

    A little different from the 3 feet mentioned earlier. I was...
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