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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: 9,463
    10-31-2011, 07:41 PM Go to last post
    • Replies: 0
    • Views: 8,268
    10-31-2011, 07:37 PM Go to last post
  1. Normal Thread Normal Threads

  2. Does this make sense?

    Started by Berggy, 08-19-2009 11:53 AM
    • Replies: 4
    • Views: 756
    08-25-2009, 09:12 PM Go to last post
  3. Buensod 6LDD 23 Dual Duct Mixing Box

    Started by PaulDiglio, 08-25-2009 03:46 PM
    • Replies: 0
    • Views: 1,479
    08-25-2009, 03:46 PM Go to last post
  4. Liebert High Head Pressure lockout

    Started by 1tonn, 08-20-2009 09:40 PM
    • Replies: 7
    • Views: 14,691
    08-25-2009, 12:32 PM Go to last post
  5. Lighting heat gains for retails areas

    Started by Artem Zhukov, 08-25-2009 04:12 AM
    • Replies: 1
    • Views: 483
    08-25-2009, 06:41 AM Go to last post
  6. mitsubishi mini split

    Started by Jollyone4, 08-20-2009 10:15 PM
    • Replies: 12
    • Views: 1,750
    08-24-2009, 09:10 PM Go to last post
  7. Confused Arcoaire identification help

    Started by RTU GOD, 08-21-2009 12:04 PM
    • Replies: 3
    • Views: 1,128
    08-24-2009, 08:29 PM Go to last post
  8. honeywell 7800

    Started by fitzyfitta, 02-01-2007 08:30 PM
    • Replies: 5
    • Views: 2,451
    08-24-2009, 03:49 PM Go to last post
  9. Beware, "off" doesn't always mean "off"

    Started by air2spare, 08-17-2009 09:38 PM
    2 Pages
    1 2
    • Replies: 24
    • Views: 2,034
    08-23-2009, 11:28 PM Go to last post
  10. Hmm chill water AHU, not cooling properly

    Started by joeywpittman, 08-18-2009 08:12 PM
    2 Pages
    1 2
    • Replies: 21
    • Views: 5,406
    08-23-2009, 08:32 PM Go to last post
  11. 25 ton semi hermetic compressor carrier

    Started by bricktop1, 08-22-2009 02:54 AM
    • Replies: 3
    • Views: 3,388
    08-23-2009, 08:29 AM Go to last post
  12. Carrier 30gt-060-510ka

    Started by t2, 04-24-2009 07:03 PM
    • Replies: 4
    • Views: 2,230
    08-23-2009, 12:10 AM Go to last post
  13. Gordon-Piatt

    Started by heavymetaldad, 05-21-2009 08:01 PM
    • Replies: 5
    • Views: 1,629
    08-22-2009, 09:39 PM Go to last post
  14. Waste water cooled condenser?

    Started by wika_boy, 08-21-2009 12:27 AM
    • Replies: 6
    • Views: 748
    08-22-2009, 11:02 AM Go to last post
  15. High oil temps on RTAC

    Started by ChillerWisperer, 07-13-2009 04:36 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 3,538
    08-22-2009, 10:12 AM Go to last post
  16. CAREL of DIXELL

    Started by kaka, 08-21-2009 05:27 AM
    • Replies: 3
    • Views: 1,266
    08-22-2009, 02:13 AM Go to last post
  17. R-22 replacements.

    Started by Randy S., 08-19-2009 09:32 PM
    • Replies: 11
    • Views: 1,135
    08-21-2009, 11:56 PM Go to last post
  18. Copeland Digital Scroll Application ??

    Started by drivewizard, 08-17-2009 10:27 PM
    • Replies: 9
    • Views: 1,187
    08-21-2009, 10:12 PM Go to last post
  19. Johnson controls vs. union

    Started by PJ's cool-aid, 07-30-2009 06:10 PM
    • Replies: 10
    • Views: 1,636
    08-21-2009, 04:03 AM Go to last post
  20. Talking Pics

    Started by turbomaster, 11-21-2008 09:38 PM
    3 Pages
    1 2 3
    • Replies: 28
    • Views: 7,201
    08-21-2009, 03:15 AM Go to last post
  21. compressor warrenty?

    Started by progressiveheat, 08-21-2009 01:25 AM
    • Replies: 1
    • Views: 560
    08-21-2009, 02:17 AM Go to last post
  22. Confused 25 ton semi hermetic compressor carrier

    Started by bricktop1, 08-20-2009 11:34 PM
    • Replies: 1
    • Views: 698
    08-21-2009, 12:33 AM Go to last post
  23. Trane Voyager runs in heat

    Started by Pete_Zahutt, 08-20-2009 09:27 PM
    • Replies: 3
    • Views: 654
    08-20-2009, 10:36 PM Go to last post
  24. Hmm 480v/3ph supply

    Started by woestmaj, 05-08-2009 01:34 PM
    • Replies: 10
    • Views: 1,211
    08-20-2009, 09:29 PM Go to last post
  25. Confused Stack on commercial roof question...

    Started by Wheelbaron, 11-10-2007 05:57 PM
    • Replies: 5
    • Views: 1,840
    08-20-2009, 07:22 PM Go to last post
  26. Mcquay chiller ALR110EY12

    Started by cwilliams100, 08-18-2009 06:47 PM
    • Replies: 5
    • Views: 910
    08-20-2009, 07:04 PM Go to last post
  27. Confused YORK/VAV/VFD/INSTALLATION

    Started by keviekev70, 08-12-2009 11:25 PM
    • Replies: 4
    • Views: 2,327
    08-20-2009, 06:32 PM Go to last post
  28. powerhead installation on trane heat pump

    Started by Ricky Dale, 08-20-2009 12:47 PM
    • Replies: 3
    • Views: 721
    08-20-2009, 12:55 PM Go to last post
  29. One AHU or Twelve FCUs

    Started by coldrig, 08-19-2009 11:21 AM
    • Replies: 5
    • Views: 1,136
    08-20-2009, 10:35 AM Go to last post
  30. Centrifugal compressor no oil return

    Started by cleancondenser, 07-16-2009 09:55 AM
    3 Pages
    1 2 3
    • Replies: 28
    • Views: 3,063
    08-19-2009, 09:25 PM Go to last post
  31. Vibration Analysis Training

    Started by chillerguy81, 08-18-2009 09:14 AM
    • Replies: 7
    • Views: 1,681
    08-19-2009, 07:28 PM Go to last post
  32. "Nu22"

    Started by Randy S., 08-18-2009 08:21 AM
    • Replies: 3
    • Views: 1,873
    08-19-2009, 06:57 PM Go to last post
    • Replies: 3
    • Views: 2,485
    08-19-2009, 08:45 AM Go to last post
  33. Question carrier clo board

    Started by ruddfan21, 10-03-2005 04:50 PM
    2 Pages
    1 2
    • Replies: 24
    • Views: 8,791
    08-18-2009, 10:11 PM Go to last post
  34. Confused York / Central Station Air Handler

    Started by hwgj1259, 08-18-2009 10:57 AM
    • Replies: 1
    • Views: 928
    08-18-2009, 09:24 PM Go to last post
  35. RTAA130 Board Problem

    Started by CJ Courtney, 08-15-2009 06:40 PM
    • Replies: 6
    • Views: 1,119
    08-18-2009, 09:15 PM Go to last post
  36. Pneumatics

    Started by coilcleener, 08-16-2009 10:34 PM
    • Replies: 12
    • Views: 1,260
    08-18-2009, 07:44 PM Go to last post
  37. TXV leaks after adjusting

    Started by MikeTx7, 08-18-2009 11:54 AM
    • Replies: 2
    • Views: 1,355
    08-18-2009, 06:03 PM Go to last post
  38. defrost sequence of things. evap fans not running

    Started by yamaha24, 08-17-2009 10:05 PM
    • Replies: 3
    • Views: 813
    08-18-2009, 01:35 PM Go to last post
  39. vrv systems

    Started by yankee fan, 08-16-2009 10:06 AM
    • Replies: 5
    • Views: 1,405
    08-18-2009, 01:29 PM Go to last post
  40. Morganizer RTU acting up

    Started by cartercrew, 08-16-2009 06:29 PM
    • Replies: 2
    • Views: 1,431
    08-18-2009, 12:41 PM Go to last post
  41. smoke detector in return duct question

    Started by plazaowner, 08-12-2009 10:22 AM
    2 Pages
    1 2
    • Replies: 25
    • Views: 7,821
    08-17-2009, 06:57 PM Go to last post
    • Replies: 2
    • Views: 4,496
    08-17-2009, 04:19 PM Go to last post
  42. BAYSENS009B stat...

    Started by sanantoniotech, 08-14-2009 03:52 PM
    • Replies: 5
    • Views: 1,954
    08-17-2009, 12:20 PM Go to last post
  43. High Temp Generator Level

    Started by gfhelper, 08-17-2009 09:26 AM
    • Replies: 0
    • Views: 601
    08-17-2009, 09:26 AM Go to last post
  44. Trane air cooled chiller "reset relay" problem

    Started by PhosgeneMachine, 08-12-2009 08:22 PM
    2 Pages
    1 2
    • Replies: 13
    • Views: 3,720
    08-16-2009, 11:25 PM Go to last post
  45. 208/ 230 motor install issue

    Started by 48simple, 07-30-2009 11:40 PM
    • Replies: 3
    • Views: 1,430
    08-16-2009, 03:34 PM Go to last post
  46. Hudson Tech

    Started by NWMech, 08-15-2009 11:19 PM
    • Replies: 7
    • Views: 734
    08-16-2009, 03:07 PM Go to last post
  47. york split fault code

    Started by jurijs, 08-14-2009 02:01 PM
    • Replies: 1
    • Views: 706
    08-16-2009, 03:53 AM Go to last post
  48. $$$$

    Started by guysmilely, 08-12-2009 05:56 PM
    3 Pages
    1 2 3
    • Replies: 38
    • Views: 3,961
    08-15-2009, 10:48 PM Go to last post
  49. Post schematics help

    Started by hvactcat, 08-13-2009 03:44 PM
    2 Pages
    1 2
    • Replies: 13
    • Views: 2,705
    08-15-2009, 11:31 AM Go to last post

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