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  1. at GT1980 TRANE VAR DC posted , a...

    at
    GT1980

    TRANE VAR DC

    posted ,
    a working ending to this,
    (no time to wait on trane controller nor some more tech-drive info/ partial support- commercial even...!)
  2. -sending in last ZPV for OE/Rep, ? ...

    -sending in last ZPV for OE/Rep, ? chop-chop-review
  3. Very grateful to the 2 Copeland inside tech...

    Very grateful to the 2 Copeland inside tech supports out of Dayton Ohio especially pitching in on third ZPV - not compressing -

    all called say likely: "not pressure-relief valve;...not...
  4. OP: Also received (1-in-30million) 3 ! 3-...

    OP:

    Also received (1-in-30million)
    3 ! 3- Copeland (shelved new in boxes, 5,6,7 yr old surplus off lines, in this today's-market hoping...) 3- NO COMPRESSION ZPV's...!!!
    But NOT RECEIVED...
  5. Do-able maintenance to save 80% KWH/'TON' w/...

    Do-able maintenance to save 80% KWH/'TON'
    w/
    iron to 1.3 PPM

    hardness to 30+ grains

    and
    acid Ph 6.7+ better -- CuNi

    or other
  6. first : National water-well TEMPS-f, DNR maps,...

    first : National water-well TEMPS-f, DNR maps, HAVE NOT SHIFTED 1/10 of 1-degree F... since viewing 1980 :

    things a late Engineer : Michael Rice PE, and HVAC GeoThermal whiz, 'DR.' John Jones...
  7. miniHaha.. where I live 52f dirt and any 8ft...

    miniHaha..

    where I live 52f dirt and any 8ft deep pond coils depth can save over 80% ton/kwh, if applicable.
  8. Thank you Causa Did get a 20hz to 60hz from...

    Thank you Causa

    Did get a 20hz to 60hz from trane tech;
    measured stator .8 ohms for a parameter,
    but needed inductance at 60hz I thought - and getting back to that for DC1-12015-A20CE1 vfd...
  9. Replies
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    in the world you will have tribulation but be of...

    in the world you will have tribulation
    but be of good cheer
    be of good cheer
    for I have overcome the world

    and late (10/16 ) wife, Melanie wrote, for many prison ministerial singing and keys...
  10. Replies
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    1,878

    OP-Q- No. But brand new , really not...

    OP-Q-

    No. But brand new , really not expensive today.

    ?Rental? seems definite: just first change the oil
  11. Replies
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    -just musings of this 1976 door-knockin'...

    -just musings of this 1976 door-knockin' furnace-cleaning/to-HVAC leads solicitor....
  12. Replies
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    1,341

    hmm .................. comment comment...

    hmm .................. comment comment comment of ? Please, that 'intro-comment' perhaps just bypass such 'valued info' there before judging information elsewheres.

    -can respect your...
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    1,697

    I'll look again

    I'll look again
  14. whoevere, did not ask that, just commented:...

    whoevere, did not ask that, just commented:
    sales guy was telling me that I should run the fan all the time/ distribute air

    Hah! I thought (tooo long) answering a thread, not created by me...
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    many moons ago, had all brass HX dipped in a hot...

    many moons ago, had all brass HX dipped in a hot phonelic liquid, then baked

    like others today I.E.) https://www.metcoat.com › phenolic-coatings.htm

    but reconsider perhaps needing the HX coil...
  16. Replies
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    simple enough as TechT posts, figure out if any...

    simple enough as TechT posts, figure out if any supply air is drafting near thermostat

    its that "better-house" then better distribution HVAC thing

    then tackle the "what's" about the unitary...
  17. GT - We don't allow DIY here.

    GT - We don't allow DIY here.
  18. also to mention, one system dropped a 4 gpm city...

    also to mention, one system dropped a 4 gpm city water~ and bill 24/7 , as the Earth coupling HX set up paralleled an already-used fresh water use to cool testing equipment hydraulic reservoirs...- ...
  19. Well. Sure. However, retort - just not well...

    Well.
    Sure. However, retort - just not well said to me by you.

    Simply put:

    any company using a chiller likely has not had the refrigeration folks carry the thought of "What if"
    ie) using...
  20. To=causa Lastly the Good Mgt of ***depot did...

    To=causa

    Lastly the Good Mgt of ***depot did reach TRANE tech:

    RPA028A1CPA COM10829 is in fact from them : BOTH- ~ 2.8 tons , as to 28,000 btuh, said to me:

    as one posted above- high...
  21. Thread: Duct Cleaning

    by GT1980
    Replies
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    3,502

    I wont be reading the rest of the thread. ...

    I wont be reading the rest of the thread.

    Started in this HVAC WITH duct cleaning 1976, and I SHOWED in return ducts, some over 3/4" layers of dust... with mirror and flashlight.

    This lead...
  22. ***depot seller: IS HONORABLE and is going to...

    ***depot seller: IS HONORABLE and is going to verify with their Trane rep , then change their sales site info (IF PROVEN) accordingly , - good for others as well.

    immediate return label, etc for...
  23. totally ignorant of Centra (VACUUM)/etc air...

    totally ignorant of Centra (VACUUM)/etc air compressor(s) and systems; and I just got a whippin' !!!

    Thank you for your persistance. Now lets see if ***depot is honorable to receive their unit...
  24. on oe/ re: REPLACEMENT WITH ac SCROLL /COPELAND: ...

    on oe/ re: REPLACEMENT WITH ac SCROLL /COPELAND: SET 230V 100-225HZ... [[yez/wowz]]

    (not about the RPA's Trane/Danfos...there.)
  25. from causa: Yes the motor will fail, at those...

    from causa: Yes the motor will fail, at those setting. Just related the set up given to you IS -why would still [[since yesterdays call into OEM replacement uses]] I am NOT going to set to the same...
  26. and I called in to Danfos, they said a few days...

    and I called in to Danfos, they said a few days ago 'someone will get back...'
  27. So I reeeeeeeeeeeeeeeeeeeeeeally would like to...

    So I reeeeeeeeeeeeeeeeeeeeeeally would like to get either Trane Drive D157675G01 176L0832

    unit/ specs/ volt set up / Hz to pick out 3 speeds if , as RAN ON BRISTOL PM/DC 's
    IF
    it could?

    ...
  28. causa;26213848] RMS at 160-244 voltage, why???...

    causa;26213848]

    RMS at 160-244 voltage, why??? b/c: when you go to 'calculators' 600 vms came up : 244 RMS and a little discussion w/ electrical Engineer - said just mention the RMS.....
  29. Excellent ! and just like it drives PM/DC...

    Excellent !

    and just like it drives PM/DC Bristol's

    ( programming for both DC-PM/AC-3ph motors is already in hand for~ , but just not this COMMERCIAL app TRANE RPA)
  30. naw. if you go to ebay/amazon with trane...

    naw.

    if you go to ebay/amazon with trane rpa028, or rpa034, or rpa044 .. there (other than "400 lbs (!)) all have same drive nomenclature as well, by Trane.

    somebody knows specifics in TX or...
  31. wouldn't matter if you were like another's...

    wouldn't matter if you were like another's hack-comments observed, but we here read your better intentions, like the majority.

    Really would be interested in how you would simplify asking ~...
  32. OEM 2.3 Ton 208/60/1 R410A Trane Compressor...

    OEM 2.3 Ton 208/60/1 R410A Trane Compressor RPA028A1CPA / COM10829
    Brand: Trane / Service First
    $**** 4x more than than ****depot

    American Standard / Trane OEM / Service First Unit...
  33. Thread: Heres a beauty

    by GT1980
    Replies
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    6,492

    someone followed their heart, again

    someone followed their heart, again
  34. Process/Industrial chilling with Earth-Coupled...

    Process/Industrial chilling with Earth-Coupled loops are also set in Heat-Recovery to space heating , when appropriate.

    Glad to answer thoughtful questions, to 1500 tons.
  35. Well just say you've never done that, and let...

    Well just say you've never done that, and let others learn from incredible first staging earth-coupled chilling systemics.

    Posting ignorance is unnecessary
  36. Others' " AC/DC " ...

    Others' " AC/DC "

    https://www.directindustry.com/industrial-manufacturer/three-phase-dc-ac-inverter-74192.html
  37. oh well if not a 3-D for the 8th digit nom... ...

    oh well if not a 3-D for the 8th digit nom...

    just getting a 3ph 600v copeland to run rms at 160-244v; works setting Eaton DC1 at 40v, 100hz to 225 hz setting up 3 speed operation for the AC...
  38. OK cables to review. Yes Cooling Fan was ON the...

    OK cables to review.
    Yes Cooling Fan was ON the VFD, but not in it... replaced a couple in advance and put openings in cabinets and warned the others owning these Bristol Drive and Eaton Drive...
  39. Wiring cables are OEM, worked since 2015 (a...

    Wiring cables are OEM, worked since 2015 (a short time) with the Bristol V80J303MB2a 30k driven to 46k btuh, then I believe cabinet went over the rated operation 50c 122f ambient air, Bristol...
  40. tried putting in picture, of the compressor...

    tried putting in picture, of the compressor label with precisely same nomenclature posted throughout, but "moves" me off sight entirely...
  41. Data... provided, and they are~..... COM10829...

    Data... provided, and they are~.....

    COM10829 .... --? is not a scroll compressor. It is a Centravac unit direct drive., Causa.. thanks again.

    SOLD AS SCROLL,, LOOKS LIKE ONE OUTSIDE...? ...
  42. Thank you very much for consideration(s) ! So...

    Thank you very much for consideration(s) !

    So when we refer to "DC PHASE INVERTED" ie) blower motors to PC fans...

    is just what I was told since 1996... so thank you again.

    Your first...
  43. What's your question?

    What's your question?
  44. Replies
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    not knowing all your lifestyle nor if a 'cave' is...

    not knowing all your lifestyle nor if a 'cave' is to exist;
    there are also some 24v and 36v Solar-Refrigeration Freezers, to A/C available,

    ~Seen users drape a 'curtain'-wall closer to the...
  45. Replies
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    in cooling, higher returns lead to more running...

    in cooling, higher returns lead to more running hours, but if in first stage of say a two speed system, the air flow (if able) can be a bit slower per btuh, and great de-humidification may be...
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    Your pro may help you with considering high-er...

    Your pro may help you with considering high-er ceiling returns that can be used (if not in current set-up) for air-rotation, with a HtP that allows for slow 'idle-speed' air movement most days...
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    perhaps find your model hp rating at continuous...

    perhaps find your model hp rating at continuous use in the range of JAN-Feb coldest weeks/ avg.

    consider if you need a pro to stop by but please offer a consulting fee to them.

    Any 2-staged HP...
  48. IF the RPA 028 A1CPA Trane PM (Perm Magnet) ...

    IF the RPA 028 A1CPA Trane PM (Perm Magnet) motor is 1ph DC , actually, then why all 3 windings exactly .8 ohms, as the rep explained "3ph".

    Just have not found full spec/hz/ etc... btuh at...
  49. Please REM: near usable: VFD COmpressors are...

    Please REM: near usable: VFD COmpressors are also very difficult to acquire with current mfg ... etc...etc.[/QUOTE]
  50. ~ from the information your requested. 1- how...

    ~ from the information your requested.

    1- how to program a VFD to operate a com 10829 208-230 VAC single phase 60Hz compressor.
    Oh- which TRANE field rep had me read .8 ohm all 3 windings as it...
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