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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: 12,137
    10-31-2011, 07:41 PM Go to last post
    • Replies: 0
    • Views: 10,457
    10-31-2011, 07:37 PM Go to last post
  1. Normal Thread Normal Threads

  2. Liebert High Head Pressure lockout

    Started by 1tonn, 08-20-2009 09:40 PM
    • Replies: 7
    • Views: 19,307
    08-25-2009, 12:32 PM Go to last post
  3. Lighting heat gains for retails areas

    Started by Artem Zhukov, 08-25-2009 04:12 AM
    • Replies: 1
    • Views: 535
    08-25-2009, 06:41 AM Go to last post
  4. mitsubishi mini split

    Started by Jollyone4, 08-20-2009 10:15 PM
    • Replies: 12
    • Views: 1,990
    08-24-2009, 09:10 PM Go to last post
  5. Confused Arcoaire identification help

    Started by RTU GOD, 08-21-2009 12:04 PM
    • Replies: 3
    • Views: 1,223
    08-24-2009, 08:29 PM Go to last post
  6. honeywell 7800

    Started by fitzyfitta, 02-01-2007 08:30 PM
    • Replies: 5
    • Views: 2,594
    08-24-2009, 03:49 PM Go to last post
  7. Beware, "off" doesn't always mean "off"

    Started by air2spare, 08-17-2009 09:38 PM
    2 Pages
    1 2
    • Replies: 24
    • Views: 2,190
    08-23-2009, 11:28 PM Go to last post
  8. Hmm chill water AHU, not cooling properly

    Started by joeywpittman, 08-18-2009 08:12 PM
    2 Pages
    1 2
    • Replies: 21
    • Views: 6,798
    08-23-2009, 08:32 PM Go to last post
  9. 25 ton semi hermetic compressor carrier

    Started by bricktop1, 08-22-2009 02:54 AM
    • Replies: 3
    • Views: 3,822
    08-23-2009, 08:29 AM Go to last post
  10. Carrier 30gt-060-510ka

    Started by t2, 04-24-2009 07:03 PM
    • Replies: 4
    • Views: 2,708
    08-23-2009, 12:10 AM Go to last post
  11. Gordon-Piatt

    Started by heavymetaldad, 05-21-2009 08:01 PM
    • Replies: 5
    • Views: 1,849
    08-22-2009, 09:39 PM Go to last post
  12. Waste water cooled condenser?

    Started by wika_boy, 08-21-2009 12:27 AM
    • Replies: 6
    • Views: 859
    08-22-2009, 11:02 AM Go to last post
  13. High oil temps on RTAC

    Started by ChillerWisperer, 07-13-2009 04:36 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 4,371
    08-22-2009, 10:12 AM Go to last post
  14. CAREL of DIXELL

    Started by kaka, 08-21-2009 05:27 AM
    • Replies: 3
    • Views: 1,657
    08-22-2009, 02:13 AM Go to last post
  15. R-22 replacements.

    Started by Randy S., 08-19-2009 09:32 PM
    • Replies: 11
    • Views: 1,316
    08-21-2009, 11:56 PM Go to last post
  16. Copeland Digital Scroll Application ??

    Started by drivewizard, 08-17-2009 10:27 PM
    • Replies: 9
    • Views: 1,339
    08-21-2009, 10:12 PM Go to last post
  17. Johnson controls vs. union

    Started by PJ's cool-aid, 07-30-2009 06:10 PM
    • Replies: 10
    • Views: 1,918
    08-21-2009, 04:03 AM Go to last post
  18. Talking Pics

    Started by turbomaster, 11-21-2008 09:38 PM
    3 Pages
    1 2 3
    • Replies: 28
    • Views: 8,315
    08-21-2009, 03:15 AM Go to last post
  19. compressor warrenty?

    Started by progressiveheat, 08-21-2009 01:25 AM
    • Replies: 1
    • Views: 620
    08-21-2009, 02:17 AM Go to last post
  20. Confused 25 ton semi hermetic compressor carrier

    Started by bricktop1, 08-20-2009 11:34 PM
    • Replies: 1
    • Views: 832
    08-21-2009, 12:33 AM Go to last post
  21. Trane Voyager runs in heat

    Started by Pete_Zahutt, 08-20-2009 09:27 PM
    • Replies: 3
    • Views: 718
    08-20-2009, 10:36 PM Go to last post
  22. Hmm 480v/3ph supply

    Started by woestmaj, 05-08-2009 01:34 PM
    • Replies: 10
    • Views: 1,361
    08-20-2009, 09:29 PM Go to last post
  23. Confused Stack on commercial roof question...

    Started by Wheelbaron, 11-10-2007 05:57 PM
    • Replies: 5
    • Views: 1,995
    08-20-2009, 07:22 PM Go to last post
  24. Mcquay chiller ALR110EY12

    Started by cwilliams100, 08-18-2009 06:47 PM
    • Replies: 5
    • Views: 1,029
    08-20-2009, 07:04 PM Go to last post
  25. Confused YORK/VAV/VFD/INSTALLATION

    Started by keviekev70, 08-12-2009 11:25 PM
    • Replies: 4
    • Views: 2,579
    08-20-2009, 06:32 PM Go to last post
  26. powerhead installation on trane heat pump

    Started by Ricky Dale, 08-20-2009 12:47 PM
    • Replies: 3
    • Views: 804
    08-20-2009, 12:55 PM Go to last post
  27. One AHU or Twelve FCUs

    Started by coldrig, 08-19-2009 11:21 AM
    • Replies: 5
    • Views: 1,325
    08-20-2009, 10:35 AM Go to last post
  28. Centrifugal compressor no oil return

    Started by cleancondenser, 07-16-2009 09:55 AM
    3 Pages
    1 2 3
    • Replies: 28
    • Views: 3,305
    08-19-2009, 09:25 PM Go to last post
  29. Vibration Analysis Training

    Started by chillerguy81, 08-18-2009 09:14 AM
    • Replies: 7
    • Views: 1,901
    08-19-2009, 07:28 PM Go to last post
  30. "Nu22"

    Started by Randy S., 08-18-2009 08:21 AM
    • Replies: 3
    • Views: 2,803
    08-19-2009, 06:57 PM Go to last post
    • Replies: 3
    • Views: 2,936
    08-19-2009, 08:45 AM Go to last post
  31. Question carrier clo board

    Started by ruddfan21, 10-03-2005 04:50 PM
    2 Pages
    1 2
    • Replies: 24
    • Views: 10,887
    08-18-2009, 10:11 PM Go to last post
  32. Confused York / Central Station Air Handler

    Started by hwgj1259, 08-18-2009 10:57 AM
    • Replies: 1
    • Views: 1,126
    08-18-2009, 09:24 PM Go to last post
  33. RTAA130 Board Problem

    Started by CJ Courtney, 08-15-2009 06:40 PM
    • Replies: 6
    • Views: 1,212
    08-18-2009, 09:15 PM Go to last post
  34. Pneumatics

    Started by coilcleener, 08-16-2009 10:34 PM
    • Replies: 12
    • Views: 1,394
    08-18-2009, 07:44 PM Go to last post
  35. TXV leaks after adjusting

    Started by MikeTx7, 08-18-2009 11:54 AM
    • Replies: 2
    • Views: 1,617
    08-18-2009, 06:03 PM Go to last post
  36. defrost sequence of things. evap fans not running

    Started by yamaha24, 08-17-2009 10:05 PM
    • Replies: 3
    • Views: 951
    08-18-2009, 01:35 PM Go to last post
  37. vrv systems

    Started by yankee fan, 08-16-2009 10:06 AM
    • Replies: 5
    • Views: 1,588
    08-18-2009, 01:29 PM Go to last post
  38. Morganizer RTU acting up

    Started by cartercrew, 08-16-2009 06:29 PM
    • Replies: 2
    • Views: 2,019
    08-18-2009, 12:41 PM Go to last post
  39. smoke detector in return duct question

    Started by plazaowner, 08-12-2009 10:22 AM
    2 Pages
    1 2
    • Replies: 25
    • Views: 8,903
    08-17-2009, 06:57 PM Go to last post
    • Replies: 2
    • Views: 5,178
    08-17-2009, 04:19 PM Go to last post
  40. BAYSENS009B stat...

    Started by sanantoniotech, 08-14-2009 03:52 PM
    • Replies: 5
    • Views: 2,203
    08-17-2009, 12:20 PM Go to last post
  41. High Temp Generator Level

    Started by gfhelper, 08-17-2009 09:26 AM
    • Replies: 0
    • Views: 681
    08-17-2009, 09:26 AM Go to last post
  42. Trane air cooled chiller "reset relay" problem

    Started by PhosgeneMachine, 08-12-2009 08:22 PM
    2 Pages
    1 2
    • Replies: 13
    • Views: 4,658
    08-16-2009, 11:25 PM Go to last post
  43. 208/ 230 motor install issue

    Started by 48simple, 07-30-2009 11:40 PM
    • Replies: 3
    • Views: 1,578
    08-16-2009, 03:34 PM Go to last post
  44. Hudson Tech

    Started by NWMech, 08-15-2009 11:19 PM
    • Replies: 7
    • Views: 867
    08-16-2009, 03:07 PM Go to last post
  45. york split fault code

    Started by jurijs, 08-14-2009 02:01 PM
    • Replies: 1
    • Views: 807
    08-16-2009, 03:53 AM Go to last post
  46. $$$$

    Started by guysmilely, 08-12-2009 05:56 PM
    3 Pages
    1 2 3
    • Replies: 38
    • Views: 5,011
    08-15-2009, 10:48 PM Go to last post
  47. Post schematics help

    Started by hvactcat, 08-13-2009 03:44 PM
    2 Pages
    1 2
    • Replies: 13
    • Views: 2,984
    08-15-2009, 11:31 AM Go to last post
  48. Better days for a old Carrier

    Started by beenaxed, 08-15-2009 08:02 AM
    • Replies: 2
    • Views: 1,153
    08-15-2009, 08:21 AM Go to last post
  49. Dumont Pool Unit

    Started by trblshuter, 08-13-2009 06:44 PM
    • Replies: 2
    • Views: 941
    08-15-2009, 07:50 AM Go to last post

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