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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: 12,560
    08-10-2011, 04:34 PM Go to last post
  1. Normal Thread Normal Threads

  2. 25 Ton AAON unit - space is too hot

    Started by Dan_G, 03-24-2019 02:26 PM
    2 Pages
    1 2
    • Replies: 13
    • Views: 340
    Today, 10:28 PM Go to last post
  3. Copeland scroll oil removal??

    Started by anthonyac1, Today 03:59 PM
    • Replies: 6
    • Views: 128
    Today, 10:24 PM Go to last post
  4. Help in the AOR

    Started by Sgtbrianadams, Today 01:12 PM
    2 Pages
    1 2
    • Replies: 13
    • Views: 173
    Today, 03:55 PM Go to last post
  5. Trane mini-split max- out !

    Started by ga1279, Today 11:19 AM
    • Replies: 1
    • Views: 90
    Today, 02:27 PM Go to last post
  6. Dry-o-tron leak

    Started by Spitz, 03-22-2019 02:11 PM
    3 Pages
    1 2 3
    • Replies: 26
    • Views: 670
    Today, 04:10 AM Go to last post
  7. Unistrut clamp vs pipe insulation.

    Started by anthonyac1, Yesterday 06:48 PM
    • Replies: 3
    • Views: 186
    Today, 02:52 AM Go to last post
  8. Three fuses

    Started by jimp, 03-15-2019 08:34 PM
    4 Pages
    1 2 3 4
    • Replies: 48
    • Views: 1,476
    Yesterday, 07:41 PM Go to last post
  9. Split system liquid line sizing

    Started by Bglenn525, 03-14-2019 02:40 PM
    • Replies: 10
    • Views: 597
    Yesterday, 05:36 PM Go to last post
  10. New to commercial Hvac

    Started by jmeadows, 03-13-2019 09:35 PM
    2 Pages
    1 2
    • Replies: 20
    • Views: 1,124
    Yesterday, 04:07 PM Go to last post
  11. 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: 779
    Yesterday, 12:58 PM Go to last post
  12. Looking for literature

    Started by Boiler Life, 03-12-2019 01:59 PM
    • Replies: 2
    • Views: 345
    03-23-2019, 09:28 PM Go to last post
  13. Confused Copeland Tandem 15HP Scroll compressors - Replacement

    Started by thebigjg, 03-18-2019 01:49 PM
    2 Pages
    1 2
    • Replies: 19
    • Views: 702
    03-23-2019, 12:35 PM Go to last post
  14. Copeland

    Started by Jay atha, 03-22-2019 08:48 AM
    2 Pages
    1 2
    • Replies: 14
    • Views: 365
    03-22-2019, 03:49 PM Go to last post
  15. Lennox RTU Fan too noisy issue

    Started by rvandervelden, 03-20-2019 09:01 PM
    3 Pages
    1 2 3
    • Replies: 31
    • Views: 766
    03-22-2019, 08:43 AM Go to last post
  16. York Rooftop Alarm Codes

    Started by will.shank, 03-19-2019 10:16 AM
    • Replies: 7
    • Views: 340
    03-21-2019, 11:52 AM Go to last post
  17. vibration deadening on window units

    Started by vfdgeek, 03-13-2019 06:03 PM
    • Replies: 7
    • Views: 461
    03-20-2019, 10:13 AM Go to last post
  18. Flaws of the CAV with reheat sequence?

    Started by LandFish, 03-11-2019 07:48 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 898
    03-16-2019, 03:37 PM Go to last post
  19. Sporlan replaceable core drier question.

    Started by anthonyac1, 02-28-2019 09:27 PM
    2 Pages
    1 2
    • Replies: 21
    • Views: 1,702
    03-16-2019, 06:39 AM Go to last post
  20. Problem of primary & secondary pumps system

    Started by ben9108, 03-13-2019 09:39 AM
    • Replies: 11
    • Views: 632
    03-15-2019, 09:34 PM Go to last post
  21. Older Trane Unit Heater

    Started by Amtdad, 03-09-2019 08:51 AM
    4 Pages
    1 2 3 4
    • Replies: 41
    • Views: 1,893
    03-14-2019, 05:12 AM Go to last post
  22. Electrical Code commercial walk in freezer:

    Started by Rich, 03-11-2019 08:58 PM
    • Replies: 10
    • Views: 614
    03-13-2019, 01:58 PM Go to last post
  23. 240v 3phase high leg question.

    Started by anthonyac1, 03-10-2019 11:16 PM
    3 Pages
    1 2 3
    • Replies: 33
    • Views: 2,141
    03-13-2019, 01:47 PM Go to last post
  24. Penn fan cycling control leaks

    Started by hvac17011, 03-11-2019 05:42 PM
    • Replies: 6
    • Views: 518
    03-12-2019, 06:17 PM Go to last post
  25. 70 Ton AAON

    Started by mattt787, 08-02-2018 01:49 PM
    • Replies: 7
    • Views: 1,169
    03-11-2019, 08:46 PM Go to last post
  26. Trane RTU not heating

    Started by Bigd701, 03-08-2019 09:59 PM
    • Replies: 7
    • Views: 811
    03-11-2019, 01:37 PM Go to last post
  27. Problems of compression ratio, COP & refrigerants

    Started by ben9108, 02-25-2019 11:32 PM
    2 Pages
    1 2
    • Replies: 17
    • Views: 1,337
    03-11-2019, 02:51 AM Go to last post
  28. Heat economizer

    Started by berry42079, 02-21-2019 12:13 PM
    3 Pages
    1 2 3
    • Replies: 38
    • Views: 2,694
    03-10-2019, 11:46 AM Go to last post
  29. Carrier equipment touch

    Started by duckman373, 02-28-2019 01:25 PM
    • Replies: 7
    • Views: 694
    03-09-2019, 10:29 AM Go to last post
  30. TXV for R407C

    Started by EugeneTheJeep, 03-08-2019 12:16 PM
    • Replies: 6
    • Views: 602
    03-09-2019, 10:15 AM Go to last post
  31. economizers

    Started by camp175, 02-27-2019 03:46 PM
    2 Pages
    1 2
    • Replies: 18
    • Views: 1,510
    03-08-2019, 04:13 PM Go to last post
  32. Curb adapters

    Started by solarmonkey, 03-06-2019 07:55 AM
    • Replies: 4
    • Views: 717
    03-08-2019, 07:31 AM Go to last post
  33. Aaon RN-070 Weight

    Started by Estimator2017, 03-02-2019 02:31 PM
    • Replies: 2
    • Views: 467
    03-07-2019, 10:55 PM Go to last post
  34. Condensation problem in office

    Started by ben9108, 03-06-2019 09:21 PM
    • Replies: 4
    • Views: 648
    03-07-2019, 03:25 PM Go to last post
    • Replies: 5
    • Views: 635
    03-07-2019, 01:49 PM Go to last post
  35. Frown Pomona Air - CRAC Unit

    Started by twbeechem, 12-30-2014 11:50 AM
    • Replies: 5
    • Views: 3,153
    03-06-2019, 04:08 AM Go to last post
  36. Steam Distribution in Return Duct

    Started by zeppelin913, 02-28-2019 11:48 AM
    humidifier, return air
    • Replies: 10
    • Views: 815
    03-05-2019, 07:12 PM Go to last post
  37. aaon CF unit ?

    Started by newbe0507, 03-01-2019 09:20 AM
    • Replies: 2
    • Views: 466
    03-04-2019, 09:04 PM Go to last post
  38. Steam issues

    Started by jman2794, 02-14-2019 03:17 PM
    2 Pages
    1 2
    • Replies: 19
    • Views: 1,754
    03-03-2019, 07:48 PM Go to last post
  39. Transducer

    Started by 5-Wyres, 03-02-2019 01:05 PM
    • Replies: 3
    • Views: 542
    03-03-2019, 09:29 AM Go to last post
  40. Drills

    Started by 5-Wyres, 03-01-2019 11:26 PM
    2 Pages
    1 2
    • Replies: 14
    • Views: 1,139
    03-02-2019, 07:47 PM Go to last post
  41. Confused Sourcing McQuay Parts

    Started by ReeferTechy, 02-27-2019 07:45 PM
    • Replies: 10
    • Views: 718
    03-02-2019, 01:19 PM Go to last post
  42. vfd drive

    Started by camp175, 02-26-2019 03:56 PM
    • Replies: 4
    • Views: 566
    03-02-2019, 08:04 AM Go to last post
  43. Electrical System Harmonic D istortion

    Started by WAYNE3298, 02-28-2019 12:59 PM
    • Replies: 10
    • Views: 705
    03-01-2019, 11:08 PM Go to last post
  44. 240 volt AHU connected to 480 volts

    Started by timjimbob, 02-28-2019 01:06 PM
    • Replies: 9
    • Views: 759
    03-01-2019, 11:47 AM Go to last post
  45. Commercial dehumidifier issues

    Started by clarke100, 02-26-2019 04:26 PM
    2 Pages
    1 2
    • Replies: 13
    • Views: 896
    02-28-2019, 05:32 PM Go to last post
  46. toshiba carrier tstat (rbc-ams54e)

    Started by Corey5150, 02-27-2019 08:29 PM
    • Replies: 0
    • Views: 261
    02-27-2019, 08:29 PM Go to last post
  47. cooling tower

    Started by camp175, 02-26-2019 04:23 PM
    • Replies: 4
    • Views: 598
    02-27-2019, 07:04 PM Go to last post
  48. Old trane voyager rtu

    Started by Allen67, 02-24-2019 05:43 PM
    4 Pages
    1 2 3 4
    • Replies: 43
    • Views: 2,525
    02-26-2019, 07:57 PM Go to last post
  49. Kolpak condensing unit

    Started by cfmech, 02-25-2019 10:52 PM
    • Replies: 11
    • Views: 845
    02-26-2019, 04:49 PM Go to last post
  50. York Capacity.

    Started by fridg, 02-25-2019 06:38 PM
    • Replies: 5
    • Views: 570
    02-25-2019, 10:20 PM Go to last post

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