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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: 12,502
    08-10-2011, 04:34 PM Go to last post
  1. Normal Thread Normal Threads

    • Replies: 4
    • Views: 155
    Today, 03:01 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: 372
    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: 342
    Today, 10:13 AM Go to last post
  4. York Rooftop Alarm Codes

    Started by will.shank, Yesterday 10:16 AM
    • Replies: 4
    • Views: 141
    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: 130
    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: 559
    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: 404
    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: 769
    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: 647
    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: 1,438
    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: 491
    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: 1,390
    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: 474
    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: 1,640
    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: 391
    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: 601
    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: 1,082
    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: 2,304
    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: 583
    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: 461
    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: 1,234
    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: 562
    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: 404
    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: 502
    03-07-2019, 03:25 PM Go to last post
    • Replies: 5
    • Views: 474
    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: 3,004
    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: 716
    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: 401
    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: 1,565
    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: 482
    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: 994
    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: 614
    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: 503
    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: 591
    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: 647
    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: 775
    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: 214
    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: 529
    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: 2,160
    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: 734
    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: 503
    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: 4,388
    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: 421
    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: 592
    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: 463
    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: 432
    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: 1,607
    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: 555
    02-23-2019, 03:26 PM Go to last post

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