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Forum: AOP Commercial HVAC

FOR EQUIPMENT OWNERS ONLY Questions and discussions regarding Commercial Buildings

  1. Sticky Thread Sticky Threads

  2. Sticky Thread >>READ THIS FIRST<< NO DIY? Why NOT??

    Started by Dad, 10-31-2011 07:41 PM
    • Replies: 0
    • Views: 12,126
    10-31-2011, 07:41 PM Go to last post
    • Replies: 0
    • Views: 10,449
    10-31-2011, 07:37 PM Go to last post
  1. Normal Thread Normal Threads

  2. Problem with a Trane RTHB 180

    Started by Ricardo Thom, 12-17-2014 08:32 AM
    • Replies: 4
    • Views: 1,739
    11-29-2016, 09:54 AM Go to last post
  3. How secure a ladder and add 2 feet

    Started by Af02145, 11-28-2016 09:03 PM
    • Replies: 2
    • Views: 929
    11-29-2016, 07:57 AM Go to last post
  4. reznor Udap 200 mounting question

    Started by classiccarswest, 11-26-2016 09:06 PM
    • Replies: 4
    • Views: 674
    11-27-2016, 03:19 PM Go to last post
  5. Transformer Room Ventilation Calculation

    Started by HVACMAN20, 11-17-2016 11:52 AM
    • Replies: 6
    • Views: 2,121
    11-26-2016, 01:09 PM Go to last post
  6. Federal reach in cooler

    Started by tommymc, 11-20-2016 04:50 PM
    2 Pages
    1 2
    • Replies: 13
    • Views: 1,177
    11-25-2016, 12:21 PM Go to last post
  7. Confused Temp and high side pressure spiking every ~30min

    Started by cpoppe, 11-23-2016 02:36 PM
    • Replies: 0
    • Views: 632
    11-23-2016, 02:36 PM Go to last post
  8. Help needed on YCAZ88ME2 York Chiller

    Started by heero85, 11-19-2016 10:53 PM
    • Replies: 3
    • Views: 902
    11-20-2016, 01:32 PM Go to last post
    • Replies: 16
    • Views: 1,162
    11-19-2016, 12:08 PM Go to last post
  9. Old Honeywell Pneumatic controls question

    Started by cfenter, 11-11-2016 03:40 PM
    • Replies: 1
    • Views: 632
    11-18-2016, 02:26 AM Go to last post
  10. Means of MUA in commercial kitchen

    Started by Crusader, 11-14-2016 05:25 PM
    • Replies: 10
    • Views: 1,311
    11-17-2016, 10:17 PM Go to last post
  11. Relative Humidity Oscillation

    Started by HVACnewguy15, 10-25-2016 10:18 AM
    2 Pages
    1 2
    • Replies: 15
    • Views: 1,697
    11-17-2016, 01:23 PM Go to last post
    • Replies: 4
    • Views: 636
    11-16-2016, 11:20 AM Go to last post
  12. guidance needed

    Started by durriya, 10-10-2016 10:54 AM
    • Replies: 6
    • Views: 1,132
    11-12-2016, 10:51 PM Go to last post
  13. Micronet 2000 Controllers (failed)?

    Started by iceair, 11-11-2016 04:16 PM
    • Replies: 0
    • Views: 413
    11-11-2016, 04:16 PM Go to last post
  14. Alerton VAV-SD2A airflow troubleshooting

    Started by Pgh HVAC Teache, 11-07-2016 03:36 PM
    • Replies: 4
    • Views: 623
    11-07-2016, 07:54 PM Go to last post
  15. HELP - High EV Pressure

    Started by dc17ret, 11-07-2016 09:58 AM
    • Replies: 0
    • Views: 485
    11-07-2016, 09:58 AM Go to last post
  16. HEPA room with positive pressure

    Started by michaeljc, 11-05-2016 05:53 PM
    • Replies: 5
    • Views: 890
    11-06-2016, 08:45 PM Go to last post
    • Replies: 1
    • Views: 503
    11-06-2016, 08:29 AM Go to last post
  17. York YMC Chillers

    Started by eljr, 11-05-2016 04:21 PM
    • Replies: 0
    • Views: 369
    11-05-2016, 04:21 PM Go to last post
  18. Confused What is the Best 40+ ton Roof Top Unit

    Started by mpeters, 11-02-2016 11:44 AM
    • Replies: 5
    • Views: 895
    11-04-2016, 04:04 PM Go to last post
    • Replies: 0
    • Views: 707
    11-02-2016, 05:37 PM Go to last post
    • Replies: 5
    • Views: 588
    11-02-2016, 12:34 AM Go to last post
  19. Using Rooftop AC for Kitchen EF makeup

    Started by davehealey, 10-31-2016 12:50 PM
    2 Pages
    1 2
    • Replies: 14
    • Views: 1,224
    11-01-2016, 03:33 PM Go to last post
  20. Trane tr200

    Started by Rene everett, 10-29-2016 01:47 PM
    • Replies: 6
    • Views: 794
    11-01-2016, 10:13 AM Go to last post
  21. new chiller for a 140 unit condominium, advice please

    Started by Hvac409, 09-26-2016 02:26 AM
    2 Pages
    1 2
    • Replies: 16
    • Views: 2,152
    10-30-2016, 11:27 AM Go to last post
  22. Pro Service Needed for Novar Control Module

    Started by mission805, 10-25-2016 06:37 PM
    novar controls, novar help
    • Replies: 2
    • Views: 559
    10-26-2016, 05:43 PM Go to last post
  23. Better methods for large AHU cleaning

    Started by Mason0505, 10-24-2016 07:14 PM
    2 Pages
    1 2
    cleaning, maintenance, rtu
    • Replies: 15
    • Views: 1,271
    10-26-2016, 01:47 PM Go to last post
  24. Old Johnson Controls DSC-8500 & FPU's

    Started by blackdoggie, 12-06-2004 10:55 PM
    2 Pages
    1 2
    • Replies: 13
    • Views: 8,181
    10-26-2016, 10:53 AM Go to last post
  25. Trane CCAD 40

    Started by lowcab311, 10-26-2016 07:59 AM
    • Replies: 0
    • Views: 496
    10-26-2016, 07:59 AM Go to last post
  26. How to compare two models of CRACs

    Started by Maxtrix, 10-18-2016 05:06 PM
    • Replies: 5
    • Views: 637
    10-25-2016, 08:44 AM Go to last post
  27. VSD/PRV

    Started by lornan.mendoza, 10-25-2016 05:15 AM
    • Replies: 2
    • Views: 472
    10-25-2016, 06:14 AM Go to last post
  28. Dust collector output to HVAC return

    Started by Lukethenuke, 10-24-2016 06:30 PM
    • Replies: 4
    • Views: 693
    10-25-2016, 02:03 AM Go to last post
  29. PLEASE HELP

    Started by DW1000, 10-18-2016 09:15 PM
    • Replies: 5
    • Views: 681
    10-24-2016, 02:53 PM Go to last post
  30. Fafco ice storage tank problems

    Started by LABC, 10-24-2016 01:40 PM
    • Replies: 0
    • Views: 562
    10-24-2016, 01:40 PM Go to last post
  31. Hmm aaon wont quit

    Started by Silas Wagner, 10-19-2016 04:51 PM
    • Replies: 2
    • Views: 1,037
    10-20-2016, 10:18 AM Go to last post
  32. Ajax Boiler Issue

    Started by keno, 10-17-2016 02:44 PM
    • Replies: 0
    • Views: 488
    10-17-2016, 02:44 PM Go to last post
    • Replies: 0
    • Views: 494
    10-15-2016, 08:01 PM Go to last post
  33. Achieving a lower temp setting

    Started by PKW, 09-23-2016 09:46 AM
    • Replies: 11
    • Views: 964
    10-14-2016, 10:49 AM Go to last post
  34. Stultz Rep

    Started by MJH93, 10-11-2016 04:19 PM
    • Replies: 0
    • Views: 532
    10-11-2016, 04:19 PM Go to last post
  35. Lennox Prodigy Bacnet Jace6

    Started by Workmatic, 10-05-2016 12:40 PM
    bacnet, jace, lennox
    • Replies: 0
    • Views: 851
    10-05-2016, 12:40 PM Go to last post
    • Replies: 5
    • Views: 702
    10-04-2016, 10:03 PM Go to last post
  36. no return air ducting

    Started by lobo11, 10-04-2016 04:41 PM
    • Replies: 1
    • Views: 683
    10-04-2016, 04:47 PM Go to last post
  37. pressure regulator and pipe sizing

    Started by dave805, 10-04-2016 12:20 AM
    • Replies: 1
    • Views: 509
    10-04-2016, 08:26 AM Go to last post
    • Replies: 2
    • Views: 572
    10-02-2016, 05:34 PM Go to last post
  38. Are refurbished HVAC's worth looking into?

    Started by SHFCU Fac Mgr, 09-27-2016 05:44 PM
    2 Pages
    1 2
    • Replies: 18
    • Views: 2,041
    09-29-2016, 11:35 AM Go to last post
  39. Buffalo Forge Air Handlers

    Started by Leroy Leake, 09-29-2016 11:14 AM
    • Replies: 0
    • Views: 533
    09-29-2016, 11:14 AM Go to last post
  40. Bad contactor

    Started by kfred92, 09-28-2016 09:46 AM
    • Replies: 1
    • Views: 550
    09-28-2016, 09:55 AM Go to last post
  41. Very high humidity.

    Started by noreason, 09-18-2016 10:06 PM
    2 Pages
    1 2
    • Replies: 13
    • Views: 1,298
    09-27-2016, 10:03 PM Go to last post

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