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Forum: Tech to Tech Chat - Commercial

FOR TECHNICAL CHAT BETWEEN INDUSTRY WORKERS ONLY. NO AOP OR DIY** This forum is for Technical Chat in the Commercial Industry and only within the limits of the Open area Rules concerning DIY. Any technical chat that goes too far will be removed or moved to the Pro Area.

  1. Sticky Thread Sticky Threads

  2. Sticky Thread NO AOP posts here please. ONLY Tech to Tech chatter

    Started by Dad, 08-10-2011 04:34 PM
    • Replies: 0
    • Views: 12,776
    08-10-2011, 04:34 PM Go to last post
  1. Normal Thread Normal Threads

  2. Stuck TXV?

    Started by USCGHVAC, Today 12:57 PM
    • Replies: 1
    • Views: 49
    Today, 01:12 PM Go to last post
  3. Helium Gas leak detector

    Started by jimp, 04-08-2019 06:32 PM
    3 Pages
    1 2 3
    • Replies: 35
    • Views: 1,455
    Today, 09:58 AM Go to last post
  4. Quick Hack-Fix for Carrier CCN Marquee Pad

    Started by PaysonHVAC, 04-14-2019 12:36 PM
    • Replies: 1
    • Views: 227
    Today, 04:52 AM Go to last post
  5. Converting trane condensing unit fromm R22 to R407C

    Started by hvacpilot, Yesterday 02:58 PM
    2 Pages
    1 2
    • Replies: 18
    • Views: 388
    Today, 04:26 AM Go to last post
  6. Carlyle compressor unloader selection.

    Started by anthonyac1, 04-16-2019 08:13 PM
    • Replies: 9
    • Views: 264
    Yesterday, 10:26 AM Go to last post
  7. Frown ptacs flooding rooms

    Started by luxx, 03-31-2019 02:10 PM
    2 Pages
    1 2
    • Replies: 13
    • Views: 717
    Yesterday, 09:45 AM Go to last post
    • Replies: 2
    • Views: 135
    Yesterday, 05:23 AM Go to last post
  8. I need a McQuay bacnet controller manual.

    Started by ksefan, 04-09-2019 03:54 PM
    • Replies: 5
    • Views: 288
    04-16-2019, 07:33 PM Go to last post
  9. Electrical enclosure cooling

    Started by joejr, 04-11-2019 11:00 AM
    4 Pages
    1 2 3 4
    • Replies: 41
    • Views: 1,336
    04-16-2019, 08:56 AM Go to last post
    • Replies: 4
    • Views: 137
    04-15-2019, 08:16 AM Go to last post
  10. Aaon ecm motor issue model RQ006

    Started by mesahvac, 04-05-2019 02:11 AM
    • Replies: 2
    • Views: 322
    04-15-2019, 04:20 AM Go to last post
  11. Confused Cost of a 100 Ton Chiller Yearly Maintenance

    Started by jlunaCR, 04-08-2019 08:48 PM
    • Replies: 6
    • Views: 463
    04-12-2019, 10:51 AM Go to last post
  12. Confused Vintage Singer Unit

    Started by RoyR80, 04-04-2019 02:27 PM
    • Replies: 5
    • Views: 406
    04-11-2019, 09:43 PM Go to last post
    • Replies: 9
    • Views: 502
    04-11-2019, 02:59 PM Go to last post
  13. Dry-o-tron leak

    Started by Spitz, 03-22-2019 02:11 PM
    3 Pages
    1 2 3
    • Replies: 31
    • Views: 1,713
    04-10-2019, 01:49 PM Go to last post
  14. Skymark Skypak's

    Started by cmajerus, 09-25-2013 01:09 PM
    2 Pages
    1 2
    • Replies: 22
    • Views: 11,566
    04-10-2019, 09:37 AM Go to last post
  15. Trane chiller cgam temp sensor replacement

    Started by daveoxlad, 06-26-2013 09:18 PM
    2 Pages
    1 2
    • Replies: 25
    • Views: 8,876
    04-09-2019, 09:24 AM Go to last post
  16. What kind of TXV is in a Carrier 40RUAA air handler?

    Started by CHAINIK, 03-28-2019 05:54 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 911
    04-08-2019, 07:15 PM Go to last post
  17. Condensor sizing

    Started by crazzycajun, 03-30-2019 08:33 AM
    2 Pages
    1 2
    • Replies: 22
    • Views: 1,080
    04-07-2019, 09:13 PM Go to last post
  18. Trane TD-5 display

    Started by mesahvac, 03-30-2019 01:10 PM
    • Replies: 7
    • Views: 508
    04-07-2019, 11:46 AM Go to last post
  19. Copeland scroll oil removal??

    Started by anthonyac1, 03-26-2019 03:59 PM
    4 Pages
    1 2 3 4
    • Replies: 40
    • Views: 1,788
    04-05-2019, 08:10 PM Go to last post
  20. Carrier rooftop cube relay

    Started by Mars65, 03-29-2019 03:20 PM
    • Replies: 12
    • Views: 743
    04-05-2019, 04:54 PM Go to last post
  21. New to commercial Hvac

    Started by jmeadows, 03-13-2019 09:35 PM
    2 Pages
    1 2
    • Replies: 21
    • Views: 1,868
    04-05-2019, 12:53 AM Go to last post
  22. TRANE RTU Heat Pump

    Started by COOLJIM, 04-03-2019 11:27 PM
    • Replies: 2
    • Views: 281
    04-04-2019, 09:00 PM Go to last post
  23. Flame rollout

    Started by cfmech, 04-01-2019 12:47 PM
    3 Pages
    1 2 3
    • Replies: 28
    • Views: 1,178
    04-04-2019, 06:02 PM Go to last post
  24. York JS63 overhauling manual

    Started by A.farghal, 04-04-2019 02:05 PM
    • Replies: 1
    • Views: 188
    04-04-2019, 03:19 PM Go to last post
  25. R-22 to m099 conversion for a 20 ton Engineered Air

    Started by Corvac, 04-02-2019 09:32 PM
    2 Pages
    1 2
    • Replies: 24
    • Views: 976
    04-03-2019, 11:55 PM Go to last post
  26. Boiler flue crushed inward

    Started by Frosty 25, 11-02-2018 10:09 PM
    2 Pages
    1 2
    • Replies: 18
    • Views: 1,723
    04-03-2019, 04:19 PM Go to last post
  27. Discharge thermistor

    Started by Spitz, 04-01-2019 10:02 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 749
    04-02-2019, 08:47 PM Go to last post
  28. New aaon make up air setpoints?

    Started by fitzyfitta, 04-01-2019 08:53 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 623
    04-02-2019, 07:18 PM Go to last post
  29. Hmm Carrier 460v Heat Pump

    Started by drage93, 03-31-2019 08:18 PM
    2 Pages
    1 2
    • Replies: 20
    • Views: 914
    04-02-2019, 12:16 PM Go to last post
  30. When to Unload 407c?

    Started by markg2076, 03-30-2019 12:14 PM
    • Replies: 3
    • Views: 419
    04-02-2019, 07:30 AM Go to last post
  31. Confused Carrier 30GT-040 icing EXV Help?

    Started by Francis Monaco, 11-20-2015 09:03 PM
    • Replies: 9
    • Views: 1,926
    04-01-2019, 11:00 PM Go to last post
  32. 25 Ton AAON unit - space is too hot

    Started by Dan_G, 03-24-2019 02:26 PM
    3 Pages
    1 2 3
    • Replies: 28
    • Views: 1,417
    04-01-2019, 07:57 PM Go to last post
  33. Split system liquid line sizing

    Started by Bglenn525, 03-14-2019 02:40 PM
    • Replies: 11
    • Views: 998
    03-31-2019, 07:37 PM Go to last post
  34. Carlyle 06D leaking

    Started by Rdell16, 03-29-2019 12:15 PM
    carlyle, gaskets, leak
    • Replies: 9
    • Views: 506
    03-31-2019, 10:27 AM Go to last post
  35. cycling 2 units to work together at different time

    Started by Takete, 03-30-2019 12:10 AM
    • Replies: 8
    • Views: 436
    03-30-2019, 06:03 PM Go to last post
  36. TXV for R407C

    Started by EugeneTheJeep, 03-08-2019 12:16 PM
    • Replies: 7
    • Views: 1,015
    03-30-2019, 12:20 AM Go to last post
  37. carrier 48ma autopilots

    Started by finest, 01-05-2012 08:55 PM
    3 Pages
    1 2 3
    • Replies: 27
    • Views: 5,597
    03-29-2019, 01:12 AM Go to last post
  38. Trane mini-split max- out !

    Started by ga1279, 03-26-2019 11:19 AM
    • Replies: 2
    • Views: 365
    03-27-2019, 09:34 PM Go to last post
  39. Help in the AOR

    Started by Sgtbrianadams, 03-26-2019 01:12 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 826
    03-27-2019, 07:16 PM Go to last post
  40. Mitsubishi VRF training classes

    Started by mesahvac, 12-18-2018 12:27 AM
    • Replies: 10
    • Views: 1,365
    03-27-2019, 04:57 PM Go to last post
  41. Unistrut clamp vs pipe insulation.

    Started by anthonyac1, 03-25-2019 06:48 PM
    • Replies: 3
    • Views: 463
    03-26-2019, 02:52 AM Go to last post
  42. Three fuses

    Started by jimp, 03-15-2019 08:34 PM
    4 Pages
    1 2 3 4
    • Replies: 48
    • Views: 2,693
    03-25-2019, 07:41 PM Go to last post
  43. etc 2 stage ranco t-stat control 100% mua

    Started by anthonyac1, 03-20-2019 12:15 AM
    3 Pages
    1 2 3
    • Replies: 27
    • Views: 1,555
    03-25-2019, 12:58 PM Go to last post
  44. Looking for literature

    Started by Boiler Life, 03-12-2019 01:59 PM
    • Replies: 2
    • Views: 570
    03-23-2019, 09:28 PM Go to last post
  45. Confused Copeland Tandem 15HP Scroll compressors - Replacement

    Started by thebigjg, 03-18-2019 01:49 PM
    2 Pages
    1 2
    • Replies: 19
    • Views: 1,169
    03-23-2019, 12:35 PM Go to last post
  46. Copeland

    Started by Jay atha, 03-22-2019 08:48 AM
    2 Pages
    1 2
    • Replies: 14
    • Views: 863
    03-22-2019, 03:49 PM Go to last post
  47. Lennox RTU Fan too noisy issue

    Started by rvandervelden, 03-20-2019 09:01 PM
    3 Pages
    1 2 3
    • Replies: 31
    • Views: 1,534
    03-22-2019, 08:43 AM Go to last post
  48. York Rooftop Alarm Codes

    Started by will.shank, 03-19-2019 10:16 AM
    • Replies: 7
    • Views: 605
    03-21-2019, 11:52 AM Go to last post

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