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  1. Thread: coleman

    by Saturatedpsi
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    7
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    197

    Where exactly, are the leaks occurring?

    Where exactly, are the leaks occurring?
  2. Replies
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    2,498

    577371 :gah:

    577371
    :gah:
  3. Replies
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    537

    I'm glad you posted that comment. :) I could...

    I'm glad you posted that comment. :) I could never quite understand how "return air" can have a big effect on "conditioning" the space, nor completely follow some of the arguments for a "high" or...
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    496

    If the superheat is "normal", and probably is,...

    If the superheat is "normal", and probably is, the lowish suction would be due to lowish airflow; and the 70˚ ID would drive it down a little.

    No clue as to yesterday...:confused:
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    1,926

    Well, did you decide there was a misprint or...

    Well, did you decide there was a misprint or misunderstanding?
  6. Replies
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    1,926

    Which is not to necessarily say there couldn't be...

    Which is not to necessarily say there couldn't be a misprint...most anything is possible these days. :grin2:
  7. Replies
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    1,926

    The air handlers ship without aux heat, so the...

    The air handlers ship without aux heat, so the air handler data plate applies only to the blower motor and controls. The heat kit has a data plate showing it's electrical requirements.
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    492

    Never mind... :o

    Never mind... :o
  9. Replies
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    685

    It happens, depending on the wiring logic, and...

    It happens, depending on the wiring logic, and the explanation is something like what you concluded. Only, the power (one leg) is going to the motor first, then through some part of the grounded...
  10. I found some language: Effective Ground-Fault...

    I found some language:

    Effective Ground-Fault Circuit Path

    "A low impedance circuit facilitating the operation of the overcurrent device...The earth shall not be considered as an effective...
  11. All I know for sure is, if I got one hand on the...

    All I know for sure is, if I got one hand on the wet grass and the other on the unit, I ain't supposed to receive a shock. Said another way, if one probe of the meter is stuck in the wet grass and...
  12. I'm not "electrically fluent" but pretty sure the...

    I'm not "electrically fluent" but pretty sure the sub panel is supposed to have a "ground" conductor going back to the main panel ground bar, which will eventually connect to the utility service...
  13. I'm not sure what you mean there, but something...

    I'm not sure what you mean there, but something is amiss with the "shock".

    The couple of times I've received shocks from cabinets, there was a missing ground connection somewhere. And soon as I...
  14. Replies
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    3,335

    I'm just guessing at remote scenarios...and not...

    I'm just guessing at remote scenarios...and not familiar with York single stage, let alone, 2 stage systems.

    Are you leaning towards a heat cycle specific / contactor chatter issue?

    Do W1 and...
  15. Replies
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    3,335

    Scratch that...finally saw a post where it was...

    Scratch that...finally saw a post where it was checked/eliminated. What about system pressures in heat mode? Low's or high's possibly approaching the limit switch values?
  16. Replies
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    3,335

    I don't see a connection either, and agree with...

    I don't see a connection either, and agree with the already mentioned "chattering" theory.

    Since it's only happening during heating season, one would think it's defrost cycle related. You've...
  17. Replies
    65
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    3,335

    OEM contactors for replacement, or wholesale...

    OEM contactors for replacement, or wholesale house specials? What's the inductive amperage rating of the contactors?
  18. Replied too soon...HvacrMedic came up with the...

    Replied too soon...HvacrMedic came up with the superheat formula. The slide rules, charts, etc have been around longer than I've been in the business, but had to have been "created" by the...
  19. I'm still not sure what the question is, but...

    I'm still not sure what the question is, but here's an opinion:

    Subcooling targets, to the best of my knowledge, apply only to TXV fed evaporator coils. Most all the 10 SEER equipment I've seen,...
  20. Where did you get the so called 10˚ and 15˚...

    Where did you get the so called 10˚ and 15˚ "target" values in the first place? Or, is that even what you're asking?
  21. Replies
    14
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    709

    Sounds like a fix to me...:grin2: I'm not...

    Sounds like a fix to me...:grin2:

    I'm not really understanding how Rheem determined hi/lo heat blower CFM's, or why you were told "it's normal on the 04 furnace".:confused: Whatever procedure...
  22. Replies
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    870

    Per Fluke: 562821 It's easy to get wide...

    Per Fluke:

    562821

    It's easy to get wide variations in readings due to "positioning". One isolated wire is easy to negotiate, while another in the back of a conductor congested panel is...
  23. Replies
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    709

    I have no experience with the furnace, but found...

    I have no experience with the furnace, but found your post interesting and Googled up an install manual. It shows low and high fire blower adjustments for temp rise, which is a design approach I...
  24. Replies
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    1,342

    If you don't have literature on the defrost board...

    If you don't have literature on the defrost board operation, this link will get you to a PDF that covers the control, page 16. Defrost Operation

    Baldloonie's thoughts about the 5˚ OD thing might...
  25. Thread: TXV

    by Saturatedpsi
    Replies
    22
    Views
    1,445

    I don't know any more about TXV design and...

    I don't know any more about TXV design and construction than the next guy, but would think a bypass circuit, operating as designed, would allow normal heat cycle operation. But over the years, I've...
  26. Thread: TXV

    by Saturatedpsi
    Replies
    22
    Views
    1,445

    What were the pressures and OD/ID temps, and how...

    What were the pressures and OD/ID temps, and how did you decide they were low?



    That's pretty much what you could expect to happen if the heat cycle was operating anywhere near normal. With no...
  27. Plugged TXV's don't generate 10˚ superheat...plus...

    Plugged TXV's don't generate 10˚ superheat...plus you're talking about an issue that has only recently surfaced . He's working with a system that's been in place for a number of years.
  28. ..maybe since Day 1? :grin2: The numbers you...

    ..maybe since Day 1? :grin2:

    The numbers you posted are textbook, low evaporator load symptoms, as previously suggested. Instead of looking for a "failure", investigate the possibilities of...
  29. Replies
    14
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    1,187

    With only 4 wires, I'd think it was the constant...

    With only 4 wires, I'd think it was the constant torque variety. 2 wires carry 240V, 2 carry 24V. Google "X-13 motor operation". It will yield some links that'll tell you what you want to know.
  30. Replies
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    1,187

    "Constant torque" (X-13) type motor? "Broad...

    "Constant torque" (X-13) type motor? "Broad Ocean" brand, by chance?
  31. One of the nice things about Goodman is...

    One of the nice things about Goodman is out-of-warranty OEM parts prices. I recently bought a Trane 4 ton indoor "A" coil...could have bought at least three Goodman coils for the same price. :gah:
  32. Replies
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    455

    I would think 'chylton' is referring to time-temp...

    I would think 'chylton' is referring to time-temp defrost controls and the DFT "sensor", which is simply an on-off switch. I've never seen any troubleshooting literature suggesting shunting...
  33. Replies
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    455

    One other possibility is absence of 24V at the...

    One other possibility is absence of 24V at the "R" connection on the board.
  34. Most residential compressors have some sort of...

    Most residential compressors have some sort of internal high pressure/compression ratio, protection device.
  35. Replies
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    465

    I guess I don't fully understand motor...

    I guess I don't fully understand motor principles...but always thought the capacitor in PSC motor applications provided a phase shift in the aux winding that created the additional torque. Along that...
  36. Replies
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    465

    Probably this gadget: PTC Start Assist...

    Probably this gadget:

    PTC Start Assist
  37. Replies
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    1,998

    The industry has been connecting 410A equipment...

    The industry has been connecting 410A equipment to 1984, '94, '74 and probably '64 plumbing ever since 410A equipment came out...hook it up.
  38. Replies
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    951

    When POE equipment first came out, I sat through...

    When POE equipment first came out, I sat through a seminar conducted by a distributor tech rep, who said replacing 22 equipment with 410A equipment absolutely, positively, without...
  39. Replies
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    963

    5. They don't generally require hard start kits...

    5. They don't generally require hard start kits with TXV systems. :)

    6. They all have the same plumbing configuration. :):)
  40. Replies
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    435

    We appreciate the update. :)

    We appreciate the update. :)
  41. Replies
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    4,067

    Post #42

    Post #42
  42. Replies
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    I ordered take-out crow...well done. :grin2:

    I ordered take-out crow...well done. :grin2:
  43. Replies
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    435

    You're welcome...(Google is your...

    You're welcome...(Google is your friend...sometimes)

    The way I read the defrost section explanation, a forced defrost could bypass funky sensors. In my experience, sensors (especially the coil...
  44. Replies
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    435

    The sensors are variable resistance: thermistors...

    The sensors are variable resistance: thermistors (usually). There are charts listing resistance vs temp, but I don't have one handy. Simplest (maybe) test would be get both at same temp (like...
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    4,067

    Happy to hear the positive outcome. But, I'd sure...

    Happy to hear the positive outcome. But, I'd sure like to inspect the internals on that faulty RV.

    :confused:
  46. Replies
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    4,067

    You missed the title and early posts...he started...

    You missed the title and early posts...he started with factory charge, added for line set lengths, turned the system on, and there were no pressure changes...no apparent pumping. Then, removed all...
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    Yeah but...he couldn't get enough pumping going,...

    Yeah but...he couldn't get enough pumping going, to raise the head pressure.



    Some max temperature differential might apply to some particular heat pump brand/model, but to arbitrarily assign...
  48. Replies
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    You do plan to return and rescue us all from the...

    You do plan to return and rescue us all from the cliff? :grin2:
  49. Replies
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    1,151

    If you end up with 400 cfm per ton, and can...

    If you end up with 400 cfm per ton, and can balance the run-out's, there aren't any long term issues to consider.
  50. Replies
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    4,067

    You gonna' try to talk to the equipment...

    You gonna' try to talk to the equipment distributor first? They just might have a tech rep on the payroll...which is not to say, he would know any more than you, but could offer concurrence on the...
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