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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: 12,834
    08-10-2011, 04:34 PM Go to last post
  1. Normal Thread Normal Threads

  2. York Schematic Diagram (Rundawg?)

    Started by FrostGiant, Today 05:09 PM
    • Replies: 3
    • Views: 5
    Today, 06:22 PM Go to last post
    • Replies: 13
    • Views: 298
    Today, 03:23 PM Go to last post
    • Replies: 12
    • Views: 4,180
    Today, 02:33 PM Go to last post
  3. Confused Vintage Singer Unit

    Started by RoyR80, 04-04-2019 02:27 PM
    • Replies: 7
    • Views: 521
    Yesterday, 07:54 PM Go to last post
  4. cycling 2 units to work together at different time

    Started by Takete, 03-30-2019 12:10 AM
    • Replies: 12
    • Views: 651
    Yesterday, 04:17 PM Go to last post
  5. lower evaporating temp

    Started by ddkk0099, Yesterday 03:22 AM
    • Replies: 9
    • Views: 242
    Yesterday, 03:59 PM Go to last post
  6. Frown ptacs flooding rooms

    Started by luxx, 03-31-2019 02:10 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 996
    04-23-2019, 08:28 PM Go to last post
  7. Copeland compressor

    Started by $lider4, 04-22-2019 09:32 PM
    2 Pages
    1 2
    • Replies: 22
    • Views: 575
    04-23-2019, 09:01 AM Go to last post
  8. Stuck TXV?

    Started by USCGHVAC, 04-18-2019 12:57 PM
    • Replies: 11
    • Views: 476
    04-22-2019, 07:20 PM Go to last post
  9. Carlyle compressor unloader selection.

    Started by anthonyac1, 04-16-2019 08:13 PM
    2 Pages
    1 2
    • Replies: 13
    • Views: 513
    04-22-2019, 08:51 AM Go to last post
  10. 06E carlyle dual unloaderproper adjustments

    Started by anthonyac1, 04-21-2019 12:14 AM
    • Replies: 4
    • Views: 269
    04-21-2019, 09:08 PM Go to last post
  11. Confused Cost of a 100 Ton Chiller Yearly Maintenance

    Started by jlunaCR, 04-08-2019 08:48 PM
    • Replies: 7
    • Views: 627
    04-21-2019, 08:44 PM Go to last post
  12. Trane TD-5 display

    Started by mesahvac, 03-30-2019 01:10 PM
    • Replies: 8
    • Views: 661
    04-20-2019, 09:11 AM Go to last post
  13. Helium Gas leak detector

    Started by jimp, 04-08-2019 06:32 PM
    3 Pages
    1 2 3
    • Replies: 35
    • Views: 1,953
    04-18-2019, 09:58 AM Go to last post
  14. Quick Hack-Fix for Carrier CCN Marquee Pad

    Started by PaysonHVAC, 04-14-2019 12:36 PM
    • Replies: 1
    • Views: 338
    04-18-2019, 04:52 AM Go to last post
  15. Converting trane condensing unit fromm R22 to R407C

    Started by hvacpilot, 04-17-2019 02:58 PM
    2 Pages
    1 2
    • Replies: 18
    • Views: 699
    04-18-2019, 04:26 AM Go to last post
    • Replies: 2
    • Views: 218
    04-17-2019, 05:23 AM Go to last post
  16. I need a McQuay bacnet controller manual.

    Started by ksefan, 04-09-2019 03:54 PM
    • Replies: 5
    • Views: 370
    04-16-2019, 07:33 PM Go to last post
  17. Electrical enclosure cooling

    Started by joejr, 04-11-2019 11:00 AM
    4 Pages
    1 2 3 4
    • Replies: 41
    • Views: 1,746
    04-16-2019, 08:56 AM Go to last post
    • Replies: 4
    • Views: 169
    04-15-2019, 08:16 AM Go to last post
  18. Aaon ecm motor issue model RQ006

    Started by mesahvac, 04-05-2019 02:11 AM
    • Replies: 2
    • Views: 395
    04-15-2019, 04:20 AM Go to last post
    • Replies: 9
    • Views: 658
    04-11-2019, 02:59 PM Go to last post
  19. Dry-o-tron leak

    Started by Spitz, 03-22-2019 02:11 PM
    3 Pages
    1 2 3
    • Replies: 31
    • Views: 1,993
    04-10-2019, 01:49 PM Go to last post
  20. Skymark Skypak's

    Started by cmajerus, 09-25-2013 01:09 PM
    2 Pages
    1 2
    • Replies: 22
    • Views: 11,846
    04-10-2019, 09:37 AM Go to last post
  21. Trane chiller cgam temp sensor replacement

    Started by daveoxlad, 06-26-2013 09:18 PM
    2 Pages
    1 2
    • Replies: 25
    • Views: 9,119
    04-09-2019, 09:24 AM Go to last post
  22. 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: 1,089
    04-08-2019, 07:15 PM Go to last post
  23. Condensor sizing

    Started by crazzycajun, 03-30-2019 08:33 AM
    2 Pages
    1 2
    • Replies: 22
    • Views: 1,267
    04-07-2019, 09:13 PM Go to last post
  24. Copeland scroll oil removal??

    Started by anthonyac1, 03-26-2019 03:59 PM
    4 Pages
    1 2 3 4
    • Replies: 40
    • Views: 2,128
    04-05-2019, 08:10 PM Go to last post
  25. Carrier rooftop cube relay

    Started by Mars65, 03-29-2019 03:20 PM
    • Replies: 12
    • Views: 868
    04-05-2019, 04:54 PM Go to last post
  26. New to commercial Hvac

    Started by jmeadows, 03-13-2019 09:35 PM
    2 Pages
    1 2
    • Replies: 21
    • Views: 2,055
    04-05-2019, 12:53 AM Go to last post
  27. TRANE RTU Heat Pump

    Started by COOLJIM, 04-03-2019 11:27 PM
    • Replies: 2
    • Views: 345
    04-04-2019, 09:00 PM Go to last post
  28. Flame rollout

    Started by cfmech, 04-01-2019 12:47 PM
    3 Pages
    1 2 3
    • Replies: 28
    • Views: 1,441
    04-04-2019, 06:02 PM Go to last post
  29. York JS63 overhauling manual

    Started by A.farghal, 04-04-2019 02:05 PM
    • Replies: 1
    • Views: 232
    04-04-2019, 03:19 PM Go to last post
  30. 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: 1,190
    04-03-2019, 11:55 PM Go to last post
  31. Boiler flue crushed inward

    Started by Frosty 25, 11-02-2018 10:09 PM
    2 Pages
    1 2
    • Replies: 18
    • Views: 1,882
    04-03-2019, 04:19 PM Go to last post
  32. Discharge thermistor

    Started by Spitz, 04-01-2019 10:02 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 891
    04-02-2019, 08:47 PM Go to last post
  33. New aaon make up air setpoints?

    Started by fitzyfitta, 04-01-2019 08:53 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 784
    04-02-2019, 07:18 PM Go to last post
  34. Hmm Carrier 460v Heat Pump

    Started by drage93, 03-31-2019 08:18 PM
    2 Pages
    1 2
    • Replies: 20
    • Views: 1,120
    04-02-2019, 12:16 PM Go to last post
  35. When to Unload 407c?

    Started by markg2076, 03-30-2019 12:14 PM
    • Replies: 3
    • Views: 488
    04-02-2019, 07:30 AM Go to last post
  36. Confused Carrier 30GT-040 icing EXV Help?

    Started by Francis Monaco, 11-20-2015 09:03 PM
    • Replies: 9
    • Views: 2,015
    04-01-2019, 11:00 PM Go to last post
  37. 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: 1,637
    04-01-2019, 07:57 PM Go to last post
  38. Split system liquid line sizing

    Started by Bglenn525, 03-14-2019 02:40 PM
    • Replies: 11
    • Views: 1,096
    03-31-2019, 07:37 PM Go to last post
  39. Carlyle 06D leaking

    Started by Rdell16, 03-29-2019 12:15 PM
    carlyle, gaskets, leak
    • Replies: 9
    • Views: 600
    03-31-2019, 10:27 AM Go to last post
  40. TXV for R407C

    Started by EugeneTheJeep, 03-08-2019 12:16 PM
    • Replies: 7
    • Views: 1,125
    03-30-2019, 12:20 AM Go to last post
  41. carrier 48ma autopilots

    Started by finest, 01-05-2012 08:55 PM
    3 Pages
    1 2 3
    • Replies: 27
    • Views: 5,906
    03-29-2019, 01:12 AM Go to last post
  42. Trane mini-split max- out !

    Started by ga1279, 03-26-2019 11:19 AM
    • Replies: 2
    • Views: 410
    03-27-2019, 09:34 PM Go to last post
  43. Help in the AOR

    Started by Sgtbrianadams, 03-26-2019 01:12 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 976
    03-27-2019, 07:16 PM Go to last post
  44. Mitsubishi VRF training classes

    Started by mesahvac, 12-18-2018 12:27 AM
    • Replies: 10
    • Views: 1,497
    03-27-2019, 04:57 PM Go to last post
  45. Unistrut clamp vs pipe insulation.

    Started by anthonyac1, 03-25-2019 06:48 PM
    • Replies: 3
    • Views: 520
    03-26-2019, 02:52 AM Go to last post
  46. Three fuses

    Started by jimp, 03-15-2019 08:34 PM
    4 Pages
    1 2 3 4
    • Replies: 48
    • Views: 3,064
    03-25-2019, 07:41 PM Go to last post

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