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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: 12,130
    10-31-2011, 07:41 PM Go to last post
    • Replies: 0
    • Views: 10,420
    10-31-2011, 07:37 PM Go to last post
  1. Normal Thread Normal Threads

  2. tired old York unit not keeping up

    Started by little john, 08-21-2009 07:27 PM
    • Replies: 10
    • Views: 1,268
    08-29-2009, 11:50 AM Go to last post
  3. Dehumidifier Performance Check

    Started by madhat, 08-28-2009 10:34 AM
    • Replies: 3
    • Views: 649
    08-28-2009, 06:30 PM Go to last post
  4. Confused Connect new grease duct to existing one?

    Started by Berny, 08-27-2009 05:48 PM
    • Replies: 2
    • Views: 888
    08-28-2009, 11:17 AM Go to last post
  5. Confused York YCAV IGBT failure

    Started by CHLR618, 08-25-2009 08:57 PM
    • Replies: 1
    • Views: 2,242
    08-28-2009, 09:47 AM Go to last post
  6. Help with Lennox model number GCS16-13-270-7Y

    Started by Hackster, 08-26-2009 11:04 AM
    • Replies: 2
    • Views: 3,653
    08-28-2009, 08:51 AM Go to last post
  7. potential oil issue

    Started by square air, 08-26-2009 11:53 PM
    • Replies: 1
    • Views: 597
    08-27-2009, 11:46 PM Go to last post
  8. York Scew Compressors

    Started by JKD, 08-27-2009 06:07 PM
    • Replies: 3
    • Views: 857
    08-27-2009, 10:16 PM Go to last post
  9. York YCAG

    Started by grendil, 08-27-2009 09:41 PM
    • Replies: 0
    • Views: 1,269
    08-27-2009, 09:41 PM Go to last post
  10. 410 POE question

    Started by PJ's cool-aid, 04-22-2009 09:09 PM
    3 Pages
    1 2 3
    • Replies: 26
    • Views: 3,612
    08-27-2009, 08:43 AM Go to last post
  11. Equipment warranties

    Started by phoenixfitter, 08-24-2009 10:26 PM
    • Replies: 7
    • Views: 1,116
    08-27-2009, 02:47 AM Go to last post
  12. Ycas troubleshooting

    Started by Arizonacooltech, 08-27-2009 12:21 AM
    • Replies: 0
    • Views: 576
    08-27-2009, 12:21 AM Go to last post
  13. Extreme Ductwork Needed

    Started by madhat, 08-26-2009 05:36 PM
    • Replies: 0
    • Views: 813
    08-26-2009, 05:36 PM Go to last post
  14. semi hermetic carrier - liquid flood back

    Started by rnorling, 08-22-2009 02:20 PM
    2 Pages
    1 2
    • Replies: 18
    • Views: 3,007
    08-26-2009, 05:29 PM Go to last post
  15. Does this make sense?

    Started by Berggy, 08-19-2009 11:53 AM
    • Replies: 4
    • Views: 860
    08-25-2009, 09:12 PM Go to last post
  16. Buensod 6LDD 23 Dual Duct Mixing Box

    Started by PaulDiglio, 08-25-2009 03:46 PM
    • Replies: 0
    • Views: 1,768
    08-25-2009, 03:46 PM Go to last post
  17. Liebert High Head Pressure lockout

    Started by 1tonn, 08-20-2009 09:40 PM
    • Replies: 7
    • Views: 19,777
    08-25-2009, 12:32 PM Go to last post
  18. Lighting heat gains for retails areas

    Started by Artem Zhukov, 08-25-2009 04:12 AM
    • Replies: 1
    • Views: 530
    08-25-2009, 06:41 AM Go to last post
  19. mitsubishi mini split

    Started by Jollyone4, 08-20-2009 10:15 PM
    • Replies: 12
    • Views: 2,072
    08-24-2009, 09:10 PM Go to last post
  20. Confused Arcoaire identification help

    Started by RTU GOD, 08-21-2009 12:04 PM
    • Replies: 3
    • Views: 1,272
    08-24-2009, 08:29 PM Go to last post
  21. honeywell 7800

    Started by fitzyfitta, 02-01-2007 08:30 PM
    • Replies: 5
    • Views: 2,689
    08-24-2009, 03:49 PM Go to last post
  22. Beware, "off" doesn't always mean "off"

    Started by air2spare, 08-17-2009 09:38 PM
    2 Pages
    1 2
    • Replies: 24
    • Views: 2,255
    08-23-2009, 11:28 PM Go to last post
  23. Hmm chill water AHU, not cooling properly

    Started by joeywpittman, 08-18-2009 08:12 PM
    2 Pages
    1 2
    • Replies: 21
    • Views: 7,397
    08-23-2009, 08:32 PM Go to last post
  24. 25 ton semi hermetic compressor carrier

    Started by bricktop1, 08-22-2009 02:54 AM
    • Replies: 3
    • Views: 3,887
    08-23-2009, 08:29 AM Go to last post
  25. Carrier 30gt-060-510ka

    Started by t2, 04-24-2009 07:03 PM
    • Replies: 4
    • Views: 2,780
    08-23-2009, 12:10 AM Go to last post
  26. Gordon-Piatt

    Started by heavymetaldad, 05-21-2009 08:01 PM
    • Replies: 5
    • Views: 1,946
    08-22-2009, 09:39 PM Go to last post
  27. Waste water cooled condenser?

    Started by wika_boy, 08-21-2009 12:27 AM
    • Replies: 6
    • Views: 864
    08-22-2009, 11:02 AM Go to last post
  28. High oil temps on RTAC

    Started by ChillerWisperer, 07-13-2009 04:36 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 4,654
    08-22-2009, 10:12 AM Go to last post
  29. CAREL of DIXELL

    Started by kaka, 08-21-2009 05:27 AM
    • Replies: 3
    • Views: 1,681
    08-22-2009, 02:13 AM Go to last post
  30. R-22 replacements.

    Started by Randy S., 08-19-2009 09:32 PM
    • Replies: 11
    • Views: 1,361
    08-21-2009, 11:56 PM Go to last post
  31. Copeland Digital Scroll Application ??

    Started by drivewizard, 08-17-2009 10:27 PM
    • Replies: 9
    • Views: 1,396
    08-21-2009, 10:12 PM Go to last post
  32. Johnson controls vs. union

    Started by PJ's cool-aid, 07-30-2009 06:10 PM
    • Replies: 10
    • Views: 2,004
    08-21-2009, 04:03 AM Go to last post
  33. Talking Pics

    Started by turbomaster, 11-21-2008 09:38 PM
    3 Pages
    1 2 3
    • Replies: 28
    • Views: 8,636
    08-21-2009, 03:15 AM Go to last post
  34. compressor warrenty?

    Started by progressiveheat, 08-21-2009 01:25 AM
    • Replies: 1
    • Views: 632
    08-21-2009, 02:17 AM Go to last post
  35. Confused 25 ton semi hermetic compressor carrier

    Started by bricktop1, 08-20-2009 11:34 PM
    • Replies: 1
    • Views: 880
    08-21-2009, 12:33 AM Go to last post
  36. Trane Voyager runs in heat

    Started by Pete_Zahutt, 08-20-2009 09:27 PM
    • Replies: 3
    • Views: 722
    08-20-2009, 10:36 PM Go to last post
  37. Hmm 480v/3ph supply

    Started by woestmaj, 05-08-2009 01:34 PM
    • Replies: 10
    • Views: 1,407
    08-20-2009, 09:29 PM Go to last post
  38. Confused Stack on commercial roof question...

    Started by Wheelbaron, 11-10-2007 05:57 PM
    • Replies: 5
    • Views: 2,019
    08-20-2009, 07:22 PM Go to last post
  39. Mcquay chiller ALR110EY12

    Started by cwilliams100, 08-18-2009 06:47 PM
    • Replies: 5
    • Views: 1,030
    08-20-2009, 07:04 PM Go to last post
  40. Confused YORK/VAV/VFD/INSTALLATION

    Started by keviekev70, 08-12-2009 11:25 PM
    • Replies: 4
    • Views: 2,659
    08-20-2009, 06:32 PM Go to last post
  41. powerhead installation on trane heat pump

    Started by Ricky Dale, 08-20-2009 12:47 PM
    • Replies: 3
    • Views: 809
    08-20-2009, 12:55 PM Go to last post
  42. One AHU or Twelve FCUs

    Started by coldrig, 08-19-2009 11:21 AM
    • Replies: 5
    • Views: 1,379
    08-20-2009, 10:35 AM Go to last post
  43. Centrifugal compressor no oil return

    Started by cleancondenser, 07-16-2009 09:55 AM
    3 Pages
    1 2 3
    • Replies: 28
    • Views: 3,410
    08-19-2009, 09:25 PM Go to last post
  44. Vibration Analysis Training

    Started by chillerguy81, 08-18-2009 09:14 AM
    • Replies: 7
    • Views: 1,995
    08-19-2009, 07:28 PM Go to last post
  45. "Nu22"

    Started by Randy S., 08-18-2009 08:21 AM
    • Replies: 3
    • Views: 2,882
    08-19-2009, 06:57 PM Go to last post
    • Replies: 3
    • Views: 2,997
    08-19-2009, 08:45 AM Go to last post
  46. Question carrier clo board

    Started by ruddfan21, 10-03-2005 04:50 PM
    2 Pages
    1 2
    • Replies: 24
    • Views: 11,120
    08-18-2009, 10:11 PM Go to last post
  47. Confused York / Central Station Air Handler

    Started by hwgj1259, 08-18-2009 10:57 AM
    • Replies: 1
    • Views: 1,128
    08-18-2009, 09:24 PM Go to last post
  48. RTAA130 Board Problem

    Started by CJ Courtney, 08-15-2009 06:40 PM
    • Replies: 6
    • Views: 1,293
    08-18-2009, 09:15 PM Go to last post
  49. Pneumatics

    Started by coilcleener, 08-16-2009 10:34 PM
    • Replies: 12
    • Views: 1,509
    08-18-2009, 07:44 PM Go to last post
  50. TXV leaks after adjusting

    Started by MikeTx7, 08-18-2009 11:54 AM
    • Replies: 2
    • Views: 1,621
    08-18-2009, 06:03 PM Go to last post

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