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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: 12,822
    08-10-2011, 04:34 PM Go to last post
  1. Normal Thread Normal Threads

  2. cycling 2 units to work together at different time

    Started by Takete, 03-30-2019 12:10 AM
    • Replies: 10
    • Views: 575
    Today, 12:11 PM Go to last post
  3. lower evaporating temp

    Started by ddkk0099, Today 03:22 AM
    • Replies: 5
    • Views: 120
    Today, 10:53 AM Go to last post
  4. Frown ptacs flooding rooms

    Started by luxx, 03-31-2019 02:10 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 965
    Yesterday, 08:28 PM Go to last post
  5. Copeland compressor

    Started by $lider4, 04-22-2019 09:32 PM
    2 Pages
    1 2
    • Replies: 22
    • Views: 520
    Yesterday, 09:01 AM Go to last post
  6. Stuck TXV?

    Started by USCGHVAC, 04-18-2019 12:57 PM
    • Replies: 11
    • Views: 456
    04-22-2019, 07:20 PM Go to last post
  7. Carlyle compressor unloader selection.

    Started by anthonyac1, 04-16-2019 08:13 PM
    2 Pages
    1 2
    • Replies: 13
    • Views: 496
    04-22-2019, 08:51 AM Go to last post
  8. 06E carlyle dual unloaderproper adjustments

    Started by anthonyac1, 04-21-2019 12:14 AM
    • Replies: 4
    • Views: 258
    04-21-2019, 09:08 PM Go to last post
  9. Confused Cost of a 100 Ton Chiller Yearly Maintenance

    Started by jlunaCR, 04-08-2019 08:48 PM
    • Replies: 7
    • Views: 610
    04-21-2019, 08:44 PM Go to last post
  10. Trane TD-5 display

    Started by mesahvac, 03-30-2019 01:10 PM
    • Replies: 8
    • Views: 648
    04-20-2019, 09:11 AM Go to last post
  11. Helium Gas leak detector

    Started by jimp, 04-08-2019 06:32 PM
    3 Pages
    1 2 3
    • Replies: 35
    • Views: 1,925
    04-18-2019, 09:58 AM Go to last post
  12. Quick Hack-Fix for Carrier CCN Marquee Pad

    Started by PaysonHVAC, 04-14-2019 12:36 PM
    • Replies: 1
    • Views: 326
    04-18-2019, 04:52 AM Go to last post
  13. Converting trane condensing unit fromm R22 to R407C

    Started by hvacpilot, 04-17-2019 02:58 PM
    2 Pages
    1 2
    • Replies: 18
    • Views: 685
    04-18-2019, 04:26 AM Go to last post
    • Replies: 2
    • Views: 211
    04-17-2019, 05:23 AM Go to last post
  14. I need a McQuay bacnet controller manual.

    Started by ksefan, 04-09-2019 03:54 PM
    • Replies: 5
    • Views: 359
    04-16-2019, 07:33 PM Go to last post
  15. Electrical enclosure cooling

    Started by joejr, 04-11-2019 11:00 AM
    4 Pages
    1 2 3 4
    • Replies: 41
    • Views: 1,725
    04-16-2019, 08:56 AM Go to last post
    • Replies: 4
    • Views: 164
    04-15-2019, 08:16 AM Go to last post
  16. Aaon ecm motor issue model RQ006

    Started by mesahvac, 04-05-2019 02:11 AM
    • Replies: 2
    • Views: 385
    04-15-2019, 04:20 AM Go to last post
  17. Confused Vintage Singer Unit

    Started by RoyR80, 04-04-2019 02:27 PM
    • Replies: 5
    • Views: 474
    04-11-2019, 09:43 PM Go to last post
    • Replies: 9
    • Views: 638
    04-11-2019, 02:59 PM Go to last post
  18. Dry-o-tron leak

    Started by Spitz, 03-22-2019 02:11 PM
    3 Pages
    1 2 3
    • Replies: 31
    • Views: 1,983
    04-10-2019, 01:49 PM Go to last post
  19. Skymark Skypak's

    Started by cmajerus, 09-25-2013 01:09 PM
    2 Pages
    1 2
    • Replies: 22
    • Views: 11,826
    04-10-2019, 09:37 AM Go to last post
  20. Trane chiller cgam temp sensor replacement

    Started by daveoxlad, 06-26-2013 09:18 PM
    2 Pages
    1 2
    • Replies: 25
    • Views: 9,088
    04-09-2019, 09:24 AM Go to last post
  21. 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: 1,077
    04-08-2019, 07:15 PM Go to last post
  22. Condensor sizing

    Started by crazzycajun, 03-30-2019 08:33 AM
    2 Pages
    1 2
    • Replies: 22
    • Views: 1,257
    04-07-2019, 09:13 PM Go to last post
  23. Copeland scroll oil removal??

    Started by anthonyac1, 03-26-2019 03:59 PM
    4 Pages
    1 2 3 4
    • Replies: 40
    • Views: 2,109
    04-05-2019, 08:10 PM Go to last post
  24. Carrier rooftop cube relay

    Started by Mars65, 03-29-2019 03:20 PM
    • Replies: 12
    • Views: 854
    04-05-2019, 04:54 PM Go to last post
  25. New to commercial Hvac

    Started by jmeadows, 03-13-2019 09:35 PM
    2 Pages
    1 2
    • Replies: 21
    • Views: 2,048
    04-05-2019, 12:53 AM Go to last post
  26. TRANE RTU Heat Pump

    Started by COOLJIM, 04-03-2019 11:27 PM
    • Replies: 2
    • Views: 334
    04-04-2019, 09:00 PM Go to last post
  27. Flame rollout

    Started by cfmech, 04-01-2019 12:47 PM
    3 Pages
    1 2 3
    • Replies: 28
    • Views: 1,425
    04-04-2019, 06:02 PM Go to last post
  28. York JS63 overhauling manual

    Started by A.farghal, 04-04-2019 02:05 PM
    • Replies: 1
    • Views: 226
    04-04-2019, 03:19 PM Go to last post
  29. 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: 1,177
    04-03-2019, 11:55 PM Go to last post
  30. Boiler flue crushed inward

    Started by Frosty 25, 11-02-2018 10:09 PM
    2 Pages
    1 2
    • Replies: 18
    • Views: 1,871
    04-03-2019, 04:19 PM Go to last post
  31. Discharge thermistor

    Started by Spitz, 04-01-2019 10:02 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 879
    04-02-2019, 08:47 PM Go to last post
  32. New aaon make up air setpoints?

    Started by fitzyfitta, 04-01-2019 08:53 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 774
    04-02-2019, 07:18 PM Go to last post
  33. Hmm Carrier 460v Heat Pump

    Started by drage93, 03-31-2019 08:18 PM
    2 Pages
    1 2
    • Replies: 20
    • Views: 1,110
    04-02-2019, 12:16 PM Go to last post
  34. When to Unload 407c?

    Started by markg2076, 03-30-2019 12:14 PM
    • Replies: 3
    • Views: 476
    04-02-2019, 07:30 AM Go to last post
  35. Confused Carrier 30GT-040 icing EXV Help?

    Started by Francis Monaco, 11-20-2015 09:03 PM
    • Replies: 9
    • Views: 2,007
    04-01-2019, 11:00 PM Go to last post
  36. 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: 1,630
    04-01-2019, 07:57 PM Go to last post
  37. Split system liquid line sizing

    Started by Bglenn525, 03-14-2019 02:40 PM
    • Replies: 11
    • Views: 1,087
    03-31-2019, 07:37 PM Go to last post
  38. Carlyle 06D leaking

    Started by Rdell16, 03-29-2019 12:15 PM
    carlyle, gaskets, leak
    • Replies: 9
    • Views: 589
    03-31-2019, 10:27 AM Go to last post
  39. TXV for R407C

    Started by EugeneTheJeep, 03-08-2019 12:16 PM
    • Replies: 7
    • Views: 1,115
    03-30-2019, 12:20 AM Go to last post
  40. carrier 48ma autopilots

    Started by finest, 01-05-2012 08:55 PM
    3 Pages
    1 2 3
    • Replies: 27
    • Views: 5,890
    03-29-2019, 01:12 AM Go to last post
  41. Trane mini-split max- out !

    Started by ga1279, 03-26-2019 11:19 AM
    • Replies: 2
    • Views: 403
    03-27-2019, 09:34 PM Go to last post
  42. Help in the AOR

    Started by Sgtbrianadams, 03-26-2019 01:12 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 969
    03-27-2019, 07:16 PM Go to last post
  43. Mitsubishi VRF training classes

    Started by mesahvac, 12-18-2018 12:27 AM
    • Replies: 10
    • Views: 1,490
    03-27-2019, 04:57 PM Go to last post
  44. Unistrut clamp vs pipe insulation.

    Started by anthonyac1, 03-25-2019 06:48 PM
    • Replies: 3
    • Views: 513
    03-26-2019, 02:52 AM Go to last post
  45. Three fuses

    Started by jimp, 03-15-2019 08:34 PM
    4 Pages
    1 2 3 4
    • Replies: 48
    • Views: 3,056
    03-25-2019, 07:41 PM Go to last post
  46. 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: 1,771
    03-25-2019, 12:58 PM Go to last post
  47. Looking for literature

    Started by Boiler Life, 03-12-2019 01:59 PM
    • Replies: 2
    • Views: 615
    03-23-2019, 09:28 PM Go to last post
  48. Confused Copeland Tandem 15HP Scroll compressors - Replacement

    Started by thebigjg, 03-18-2019 01:49 PM
    2 Pages
    1 2
    • Replies: 19
    • Views: 1,322
    03-23-2019, 12:35 PM Go to last post

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