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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: 12,500
    08-10-2011, 04:34 PM Go to last post
  1. Normal Thread Normal Threads

    • Replies: 3
    • Views: 140
    Today, 01:01 PM Go to last post
  2. Confused Copeland Tandem 15HP Scroll compressors - Replacement

    Started by thebigjg, 03-18-2019 01:49 PM
    2 Pages
    1 2
    • Replies: 13
    • Views: 355
    Today, 10:40 AM Go to last post
  3. vibration deadening on window units

    Started by vfdgeek, 03-13-2019 06:03 PM
    • Replies: 7
    • Views: 329
    Today, 10:13 AM Go to last post
  4. York Rooftop Alarm Codes

    Started by will.shank, Yesterday 10:16 AM
    • Replies: 4
    • Views: 137
    Yesterday, 09:14 PM Go to last post
  5. Trane cgwf 030 temp sensors

    Started by hvac17011, 03-18-2019 07:25 PM
    • Replies: 0
    • Views: 126
    03-18-2019, 07:25 PM Go to last post
  6. Three fuses

    Started by jimp, 03-15-2019 08:34 PM
    2 Pages
    1 2
    • Replies: 19
    • Views: 547
    03-18-2019, 07:20 PM Go to last post
  7. Split system liquid line sizing

    Started by Bglenn525, 03-14-2019 02:40 PM
    • Replies: 7
    • Views: 390
    03-17-2019, 07:20 PM Go to last post
  8. New to commercial Hvac

    Started by jmeadows, 03-13-2019 09:35 PM
    2 Pages
    1 2
    • Replies: 17
    • Views: 740
    03-17-2019, 12:08 AM Go to last post
  9. Flaws of the CAV with reheat sequence?

    Started by LandFish, 03-11-2019 07:48 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 646
    03-16-2019, 03:37 PM Go to last post
  10. Sporlan replaceable core drier question.

    Started by anthonyac1, 02-28-2019 09:27 PM
    2 Pages
    1 2
    • Replies: 21
    • Views: 1,421
    03-16-2019, 06:39 AM Go to last post
  11. Problem of primary & secondary pumps system

    Started by ben9108, 03-13-2019 09:39 AM
    • Replies: 11
    • Views: 489
    03-15-2019, 09:34 PM Go to last post
  12. Older Trane Unit Heater

    Started by Amtdad, 03-09-2019 08:51 AM
    4 Pages
    1 2 3 4
    • Replies: 41
    • Views: 1,382
    03-14-2019, 05:12 AM Go to last post
  13. Electrical Code commercial walk in freezer:

    Started by Rich, 03-11-2019 08:58 PM
    • Replies: 10
    • Views: 471
    03-13-2019, 01:58 PM Go to last post
  14. 240v 3phase high leg question.

    Started by anthonyac1, 03-10-2019 11:16 PM
    3 Pages
    1 2 3
    • Replies: 33
    • Views: 1,603
    03-13-2019, 01:47 PM Go to last post
  15. Penn fan cycling control leaks

    Started by hvac17011, 03-11-2019 05:42 PM
    • Replies: 6
    • Views: 388
    03-12-2019, 06:17 PM Go to last post
  16. Looking for literature

    Started by Boiler Life, 03-12-2019 01:59 PM
    • Replies: 1
    • Views: 230
    03-12-2019, 03:06 PM Go to last post
  17. 70 Ton AAON

    Started by mattt787, 08-02-2018 01:49 PM
    • Replies: 7
    • Views: 1,064
    03-11-2019, 08:46 PM Go to last post
  18. Trane RTU not heating

    Started by Bigd701, 03-08-2019 09:59 PM
    • Replies: 7
    • Views: 598
    03-11-2019, 01:37 PM Go to last post
  19. Problems of compression ratio, COP & refrigerants

    Started by ben9108, 02-25-2019 11:32 PM
    2 Pages
    1 2
    • Replies: 17
    • Views: 1,072
    03-11-2019, 02:51 AM Go to last post
  20. Heat economizer

    Started by berry42079, 02-21-2019 12:13 PM
    3 Pages
    1 2 3
    • Replies: 38
    • Views: 2,280
    03-10-2019, 11:46 AM Go to last post
  21. Carrier equipment touch

    Started by duckman373, 02-28-2019 01:25 PM
    • Replies: 7
    • Views: 582
    03-09-2019, 10:29 AM Go to last post
  22. TXV for R407C

    Started by EugeneTheJeep, 03-08-2019 12:16 PM
    • Replies: 6
    • Views: 450
    03-09-2019, 10:15 AM Go to last post
  23. economizers

    Started by camp175, 02-27-2019 03:46 PM
    2 Pages
    1 2
    • Replies: 18
    • Views: 1,213
    03-08-2019, 04:13 PM Go to last post
  24. Curb adapters

    Started by solarmonkey, 03-06-2019 07:55 AM
    • Replies: 4
    • Views: 555
    03-08-2019, 07:31 AM Go to last post
  25. Aaon RN-070 Weight

    Started by Estimator2017, 03-02-2019 02:31 PM
    • Replies: 2
    • Views: 403
    03-07-2019, 10:55 PM Go to last post
  26. Condensation problem in office

    Started by ben9108, 03-06-2019 09:21 PM
    • Replies: 4
    • Views: 490
    03-07-2019, 03:25 PM Go to last post
    • Replies: 5
    • Views: 471
    03-07-2019, 01:49 PM Go to last post
  27. Frown Pomona Air - CRAC Unit

    Started by twbeechem, 12-30-2014 11:50 AM
    • Replies: 5
    • Views: 3,002
    03-06-2019, 04:08 AM Go to last post
  28. Steam Distribution in Return Duct

    Started by zeppelin913, 02-28-2019 11:48 AM
    humidifier, return air
    • Replies: 10
    • Views: 698
    03-05-2019, 07:12 PM Go to last post
  29. aaon CF unit ?

    Started by newbe0507, 03-01-2019 09:20 AM
    • Replies: 2
    • Views: 399
    03-04-2019, 09:04 PM Go to last post
  30. Steam issues

    Started by jman2794, 02-14-2019 03:17 PM
    2 Pages
    1 2
    • Replies: 19
    • Views: 1,551
    03-03-2019, 07:48 PM Go to last post
  31. Transducer

    Started by 5-Wyres, 03-02-2019 01:05 PM
    • Replies: 3
    • Views: 479
    03-03-2019, 09:29 AM Go to last post
  32. Drills

    Started by 5-Wyres, 03-01-2019 11:26 PM
    2 Pages
    1 2
    • Replies: 14
    • Views: 975
    03-02-2019, 07:47 PM Go to last post
  33. Confused Sourcing McQuay Parts

    Started by ReeferTechy, 02-27-2019 07:45 PM
    • Replies: 10
    • Views: 611
    03-02-2019, 01:19 PM Go to last post
  34. vfd drive

    Started by camp175, 02-26-2019 03:56 PM
    • Replies: 4
    • Views: 495
    03-02-2019, 08:04 AM Go to last post
  35. Electrical System Harmonic D istortion

    Started by WAYNE3298, 02-28-2019 12:59 PM
    • Replies: 10
    • Views: 589
    03-01-2019, 11:08 PM Go to last post
  36. 240 volt AHU connected to 480 volts

    Started by timjimbob, 02-28-2019 01:06 PM
    • Replies: 9
    • Views: 646
    03-01-2019, 11:47 AM Go to last post
  37. Commercial dehumidifier issues

    Started by clarke100, 02-26-2019 04:26 PM
    2 Pages
    1 2
    • Replies: 13
    • Views: 753
    02-28-2019, 05:32 PM Go to last post
  38. toshiba carrier tstat (rbc-ams54e)

    Started by Corey5150, 02-27-2019 08:29 PM
    • Replies: 0
    • Views: 211
    02-27-2019, 08:29 PM Go to last post
  39. cooling tower

    Started by camp175, 02-26-2019 04:23 PM
    • Replies: 4
    • Views: 526
    02-27-2019, 07:04 PM Go to last post
  40. Old trane voyager rtu

    Started by Allen67, 02-24-2019 05:43 PM
    4 Pages
    1 2 3 4
    • Replies: 43
    • Views: 2,159
    02-26-2019, 07:57 PM Go to last post
  41. Kolpak condensing unit

    Started by cfmech, 02-25-2019 10:52 PM
    • Replies: 11
    • Views: 730
    02-26-2019, 04:49 PM Go to last post
  42. York Capacity.

    Started by fridg, 02-25-2019 06:38 PM
    • Replies: 5
    • Views: 493
    02-25-2019, 10:20 PM Go to last post
  43. Troubleshooting help

    Started by DamonG, 02-15-2019 05:35 PM
    5 Pages
    1 2 3 4 5
    • Replies: 59
    • Views: 4,386
    02-25-2019, 08:43 PM Go to last post
  44. Trane RTU ignition module

    Started by TakePrideInWork, 02-24-2019 12:26 AM
    • Replies: 1
    • Views: 417
    02-25-2019, 05:02 PM Go to last post
  45. Vision Pro 8000 WIFI

    Started by hvacsteve, 02-24-2019 11:08 AM
    • Replies: 6
    • Views: 582
    02-24-2019, 11:49 PM Go to last post
  46. York rtu help

    Started by Will97, 02-24-2019 06:40 PM
    • Replies: 4
    • Views: 459
    02-24-2019, 09:44 PM Go to last post
  47. Small Group Meeting - HVAC (Commercial)

    Started by AdrianOmarPerez, 02-23-2019 06:14 PM
    • Replies: 2
    • Views: 428
    02-24-2019, 10:43 AM Go to last post
  48. Confused What Am I Missing?Negative pressure

    Started by Bringtheheat, 02-22-2019 04:38 PM
    2 Pages
    1 2
    • Replies: 24
    • Views: 1,586
    02-23-2019, 09:57 PM Go to last post
  49. York rtu zf060n10n5aaa2a

    Started by preferred, 02-20-2019 05:03 PM
    • Replies: 4
    • Views: 552
    02-23-2019, 03:26 PM Go to last post

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