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  1. Replies
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    See page 87 of document under "Mechanical Draft...

    See page 87 of document under "Mechanical Draft Systems" (page 104 of entire pdf).
  2. Replies
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    108

    Did either of you verify the outdoor fan motor is...

    Did either of you verify the outdoor fan motor is operating properly?

    Just like an indoor coil in the summer with a bad fan motor, the outdoor coil will freeze quicker in heat mode if the fan or...
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    You would be correct. 12 - Flame sense low ...

    You would be correct.

    12 - Flame sense low

    13 - Flame sense lost

    57 - High pressure switch
  4. :cheers:

    :cheers:
  5. Check your inbox.

    Check your inbox.
  6. Do you know what series this unit is? The 14th...

    Do you know what series this unit is? The 14th digit of the model number.
  7. .

    .
  8. Thread: Tare Weight

    by rundawg
    Replies
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    As far as I know, only refrigerant recovery...

    As far as I know, only refrigerant recovery cylinders (yellow and grey) have a Tare Weight (TW) stamped on them.

    New virgin refrigerant cylinders (25/30lbs) only have a net weight labeled on them...
  9. OOPS! No you are not missing anything. I was...

    OOPS! No you are not missing anything. I was thinking he was the OP.

    Carry on....................:)
  10. So are you saying that it NEVER shuts off until...

    So are you saying that it NEVER shuts off until the disconnect is pulled?
  11. Replies
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    The York TM9Y model the OP mentioned is a natural...

    The York TM9Y model the OP mentioned is a natural gas or LP furnace.
  12. Even the manual for the earlier PGE10A series...

    Even the manual for the earlier PGE10A series doesn't state anything about the inducer running for bug prevention.

    I will agree with "joemach" though, in that I have seen a few units over the...
  13. Check your email.

    Check your email.
  14. Replies
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    350

    I was taught in my many combustion training...

    I was taught in my many combustion training classes, that anywhere in the country where the outdoor temperatures drop below 30 degrees, you shouldn't be using 100% outdoor air for combustion.
    ...
  15. Thread: Carrier

    by rundawg
    Replies
    3
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    283

    :cheers:

    :cheers:
  16. Thread: Carrier

    by rundawg
    Replies
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    283

    Check your inbox. I do not most manuals in this...

    Check your inbox. I do not most manuals in this "OPEN" forum.
  17. Replies
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    If those carbon monoxide (CO) detectors are UL...

    If those carbon monoxide (CO) detectors are UL listed, they will not alert you to dangerous levels of CO until they sit in at least 70 PPM for up to 4 hours.

    What is the model number of this used...
  18. Replies
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    Rheem units power the reversing valve in heat...

    Rheem units power the reversing valve in heat mode, so it should default to cooling when it is not energized with 24 volts.

    There should be no reason to wire in the reversing valve in your “wiring...
  19. Check your inbox.

    Check your inbox.
  20. Check your email. I sent you a couple pdf's.

    Check your email. I sent you a couple pdf's.
  21. Thread: What is it

    by rundawg
    Replies
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    503

    Wait a minute! Did you not read the pdf I...

    Wait a minute! Did you not read the pdf I provided back in post #6?
  22. Replies
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    5,451

    "Jdhawk6" hasn’t been on this forum for almost 7...

    "Jdhawk6" hasn’t been on this forum for almost 7 years. He posted this thread in Jan. 2013, so I doubt you will get a response back from him as to the outcome of this problem.
  23. Thread: What is it

    by rundawg
    Replies
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    503

    See attachment.

    See attachment.
  24. Replies
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    261

    :cheers:

    :cheers:
  25. Replies
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    261

    Check your email. I do not post manuals in...

    Check your email.

    I do not post manuals in this "OPEN" forum. As a "PRO" member, you should ask for manuals in the "LOCKED" Pro forums, where I will post directly to your thread.
  26. Replies
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    You are correct - 8.5 ton (see attachment).

    You are correct - 8.5 ton (see attachment).
  27. Replies
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    382

    Welcome to the real world. Even the perfectly...

    Welcome to the real world. Even the perfectly matched units rarely meet the manufacturers stated SEER, HSPF, and COP.

    Why is that? Because these units are tested in conditions that are rarely met...
  28. Replies
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    382

    Just be advised the units listed in this manual...

    Just be advised the units listed in this manual are for 3 phase units, which will naturally be slightly better in efficiency.
  29. Replies
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    382

    We are talking 16 years ago. The SEER on this...

    We are talking 16 years ago. The SEER on this unit with those matched coils is 10.40.

    Note: SEER is the cooling side of the heat pump, and HSPF is for the heat side.
  30. Replies
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    That's my fault, there is no range. The COP is...

    That's my fault, there is no range. The COP is just one number.

    Forgot to take the word "range" out when I was editing my previous numbers for various units.

    Sorry.
  31. Replies
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    HPX12024 matched to “up flow” coils shows this...

    HPX12024 matched to “up flow” coils shows this data:

    CX33-30 and CX34-30 (2.5 ton coils) Heating BTUH capacity @ 47ºf is 23,000.
    CX33-30 and CX34-30 (2.5 ton coils) Heating BTUH capacity @ 17ºf ...
  32. Replies
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    There are a few indoor units that are rated with...

    There are a few indoor units that are rated with the HPXA12024****:

    Heating BTUH capacity @ 47ºf ranges from 23,000 to 23,400.
    Heating BTUH capacity @ 17ºf ranges from 14,400 to 15,700.

    COP @...
  33. Replies
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    What is the model number of the indoor unit it is...

    What is the model number of the indoor unit it is paired with?
  34. Replies
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    Sorry if you thought we were being critical of...

    Sorry if you thought we were being critical of your abilities.

    You have to remember that many posters on this forum (including techs) have done minimal troubleshooting when they ask a "why isn't...
  35. Replies
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    Did you have a combustion analyzer on this unit...

    Did you have a combustion analyzer on this unit when you lowered the manifold pressure?

    If not, how do you know you didn't change the combustion performance on this system to the point where you...
  36. Replies
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    To get measurable CO at a register, or in the...

    To get measurable CO at a register, or in the space, a furnace has to be making seriously high levels of CO, or it has to have been making CO over a long period of time.

    A 100,000 btuh condensing...
  37. Replies
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    I would not want any measurable CO level in my...

    I would not want any measurable CO level in my home.

    Long term exposure to low levels of CO is worse than short periods of high levels.

    Testing should be done to identify the true source of the...
  38. Replies
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    If your O2 is within tolerance, the excess air is...

    If your O2 is within tolerance, the excess air is within tolerance.

    Excess air is just a calculation the analyzer computes based on the amount of O2 in the flue gas sample.

    The combustion...
  39. Replies
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    Thanks for the model number. This unit is...

    Thanks for the model number.

    This unit is suppose to have the #43 orifice installed in each burner.

    Per the National Fuel Gas code, that orifice will flow 22,390 btuh of natural gas @ 3.5” wc....
  40. Replies
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    Please don’t let these changes fool you into...

    Please don’t let these changes fool you into thinking you are now safe from the water heater ever backdrafting again.

    Temperature and pressure differences between the outside and the room where...
  41. Replies
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    Without testing the static pressure your system...

    Without testing the static pressure your system is operating under, it is hard to surmise if your return duct system is adequate.

    Can you please provide the model number of this unit?
  42. Replies
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    :putergreet: I want to know the answer to this...

    :putergreet: I want to know the answer to this too.
  43. Replies
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    Something is not right with your numbers....

    Something is not right with your numbers. Especially when operating at 3.2" wc.

    67 (rise) x 1400 (CFM airflow) x 1.08 (constant) = 101,304 btuh output on an 88,800 btuh rating?

    What are you...
  44. Thread: Carrier 48TC

    by rundawg
    Replies
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    476

    I can't blame ya. My guess is he wont be back...

    I can't blame ya.

    My guess is he wont be back anyway.
  45. Thread: Carrier 48TC

    by rundawg
    Replies
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    476

    Whoaaa my friend!! Not the way to get...

    Whoaaa my friend!!

    Not the way to get assistance on this forum.

    You are mostly to blame here, as you posted your question in the wrong forum. This forum is for commercial equipment owners to...
  46. Replies
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    Post the model number of this unit if you can. ...

    Post the model number of this unit if you can.

    Also, send me an email, and I will get a pressure switch pdf off to you.
  47. Replies
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    How old is this unit? The induced draft motor...

    How old is this unit?

    The induced draft motor “wheels” (small squirrel cage) on these are notorious for rusting out and not pulling enough air into the combustion chamber.

    Sometimes you can...
  48. Replies
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    302

    Do you have a short run of combustion air and...

    Do you have a short run of combustion air and vent pipe? How long are they (furnace to outdoors and how many 90º and 45º's).

    What is the model number of this unit?
  49. Replies
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    657

    :cheers:

    :cheers:
  50. Replies
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    657

    Check your inbox. I don't post manuals in this...

    Check your inbox. I don't post manuals in this "OPEN" forum.
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