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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: 6,097
    10-31-2011, 07:41 PM Go to last post
    • Replies: 0
    • Views: 5,191
    10-31-2011, 07:37 PM Go to last post
  1. Normal Thread Normal Threads

  2. York XTI-045 X 084-HAKA 046A

    Started by corny, 07-22-2011 07:18 AM
    • Replies: 4
    • Views: 3,123
    07-05-2012, 09:49 PM Go to last post
  3. Yet another carrier model #

    Started by Maikerum, 07-02-2012 01:59 PM
    • Replies: 2
    • Views: 1,052
    07-05-2012, 09:36 AM Go to last post
  4. Piping material for sprinkler system

    Started by hasni, 07-02-2012 09:22 AM
    • Replies: 0
    • Views: 806
    07-02-2012, 09:22 AM Go to last post
  5. Carrier Rooftop Gaspack Model #s

    Started by Maikerum, 06-29-2012 01:43 PM
    • Replies: 4
    • Views: 1,639
    07-01-2012, 01:41 PM Go to last post
  6. R22 Retrofit question

    Started by Straick, 06-27-2012 04:47 PM
    • Replies: 9
    • Views: 2,117
    06-30-2012, 10:24 PM Go to last post
  7. Atlanta HVAC contractor

    Started by MariettaGA, 06-20-2012 03:01 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 1,948
    06-28-2012, 02:06 PM Go to last post
  8. Dust Issue in Warehouse home.

    Started by Amitayus, 06-15-2012 05:16 AM
    • Replies: 11
    • Views: 2,201
    06-27-2012, 08:33 PM Go to last post
  9. CLOSED LOOP HVAC SEDIMENT

    Started by calypso, 06-27-2012 08:14 PM
    • Replies: 0
    • Views: 949
    06-27-2012, 08:14 PM Go to last post
  10. McQuay Alarm code

    Started by Lloyd Mc, 06-20-2012 01:17 PM
    • Replies: 2
    • Views: 1,763
    06-27-2012, 05:16 PM Go to last post
  11. Is there a chiller type comparison chart?

    Started by Grawburg, 05-22-2008 09:10 PM
    • Replies: 3
    • Views: 1,999
    06-27-2012, 05:12 PM Go to last post
  12. System controller recommendations ? PLC ?

    Started by Nihilist, 06-27-2012 11:09 AM
    • Replies: 1
    • Views: 709
    06-27-2012, 03:03 PM Go to last post
  13. Liebert 3000 Challenger freezing up

    Started by frontierfrost, 06-26-2012 09:31 AM
    freeze problems, liebert commercial hvac
    • Replies: 5
    • Views: 1,153
    06-27-2012, 08:39 AM Go to last post
  14. Confused Low pressure cut-off switch

    Started by Bobby67, 06-25-2012 02:58 PM
    • Replies: 5
    • Views: 2,817
    06-26-2012, 10:14 PM Go to last post
  15. Condenser water inline booster pumps

    Started by cleancondenser, 11-02-2011 10:42 AM
    • Replies: 3
    • Views: 2,318
    06-26-2012, 07:26 PM Go to last post
  16. Drycleaning machine fridge problems

    Started by slicksilver79, 06-25-2012 01:52 AM
    • Replies: 4
    • Views: 1,402
    06-26-2012, 06:39 PM Go to last post
  17. Confused Walk-in box with outdoor compressor

    Started by Bobby67, 08-26-2011 12:42 PM
    • Replies: 10
    • Views: 2,872
    06-26-2012, 04:46 PM Go to last post
  18. refrigeration piping underground

    Started by gem6376, 06-25-2012 02:52 PM
    • Replies: 1
    • Views: 1,050
    06-26-2012, 05:59 AM Go to last post
  19. Question Walkin using Mp89

    Started by jdragun, 06-22-2012 05:19 PM
    • Replies: 2
    • Views: 883
    06-23-2012, 12:10 PM Go to last post
  20. Dripping Ducts

    Started by harpoonhannas, 05-07-2012 03:54 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 3,480
    06-22-2012, 06:12 PM Go to last post
  21. N2 electricity-btu meter

    Started by glompos21, 06-22-2012 04:22 PM
    • Replies: 0
    • Views: 1,617
    06-22-2012, 04:22 PM Go to last post
  22. Trane Chiller MPL alarm

    Started by Dumas22, 06-15-2012 11:22 AM
    2 Pages
    1 2
    • Replies: 15
    • Views: 2,886
    06-22-2012, 01:22 PM Go to last post
  23. Confused Trane chiller oil fault

    Started by carlitosway983, 06-22-2012 10:28 AM
    • Replies: 2
    • Views: 1,066
    06-22-2012, 11:44 AM Go to last post
  24. Liebert BU067A: compressor unloader valve???

    Started by MrSlim, 02-16-2010 01:14 PM
    • Replies: 3
    • Views: 2,291
    06-21-2012, 10:35 PM Go to last post
  25. data aire nuisance trip

    Started by rockbeach, 06-17-2012 11:18 AM
    • Replies: 4
    • Views: 1,439
    06-20-2012, 09:45 PM Go to last post
  26. Micro-Channel

    Started by retube, 03-31-2011 06:43 PM
    2 Pages
    1 2
    • Replies: 14
    • Views: 4,739
    06-20-2012, 02:12 PM Go to last post
  27. Pre-Install advice for a Hotel in Mexico

    Started by markorm, 06-18-2012 01:00 PM
    • Replies: 1
    • Views: 681
    06-20-2012, 06:09 AM Go to last post
    • Replies: 1
    • Views: 1,309
    06-19-2012, 09:35 AM Go to last post
  28. McQuay WDC 063 oil pump

    Started by tomt, 04-21-2007 03:23 AM
    • Replies: 1
    • Views: 1,106
    06-16-2012, 01:09 PM Go to last post
  29. Weight of 50hp Century motor?

    Started by xFreebirdx, 03-19-2012 02:59 PM
    • Replies: 8
    • Views: 2,068
    06-16-2012, 01:28 AM Go to last post
  30. Oil change question

    Started by tikiman1, 06-15-2012 10:14 AM
    • Replies: 2
    • Views: 794
    06-15-2012, 10:58 PM Go to last post
    • Replies: 3
    • Views: 1,977
    06-13-2012, 10:06 PM Go to last post
  31. Hmm I need to know size of my unit

    Started by dreamer315, 06-11-2012 08:21 AM
    • Replies: 6
    • Views: 1,366
    06-12-2012, 10:13 PM Go to last post
  32. Siebe pneumatic valve

    Started by savage24, 11-11-2009 01:06 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 3,947
    06-12-2012, 12:14 PM Go to last post
  33. Would anyone decode these model Numbers?

    Started by Maikerum, 06-11-2012 03:16 PM
    • Replies: 6
    • Views: 1,986
    06-11-2012, 11:15 PM Go to last post
  34. Water leak from Rooftop unit

    Started by DeltaPnutz, 06-11-2012 09:38 PM
    • Replies: 2
    • Views: 1,074
    06-11-2012, 11:10 PM Go to last post
  35. Hmm Trane Model #?

    Started by vostro1, 06-10-2012 01:00 AM
    • Replies: 2
    • Views: 1,527
    06-10-2012, 10:51 AM Go to last post
  36. Hmm Decode Trane Model number

    Started by Paulica, 06-07-2012 10:07 PM
    • Replies: 3
    • Views: 3,984
    06-08-2012, 09:44 PM Go to last post
  37. Liebert Deluxe 3 display panel issue

    Started by Angel Carlo, 06-06-2012 02:48 PM
    • Replies: 4
    • Views: 1,106
    06-07-2012, 06:57 AM Go to last post
  38. Fan Sizing and V.A.V.'s

    Started by techservices, 05-13-2012 10:29 PM
    • Replies: 4
    • Views: 1,103
    06-07-2012, 06:29 AM Go to last post
  39. This is not a DIY post!

    Started by Ghlavenka, 06-04-2012 12:50 PM
    • Replies: 8
    • Views: 1,354
    06-05-2012, 09:29 PM Go to last post
    • Replies: 0
    • Views: 1,291
    06-04-2012, 06:33 PM Go to last post
  40. Mitsubishi Heavy Industries (MHI) Centrifugal Chiller

    Started by cklee, 08-22-2008 10:22 AM
    2 Pages
    1 2
    • Replies: 17
    • Views: 5,583
    06-04-2012, 01:21 PM Go to last post
  41. Suction pressure low, unit freezing

    Started by ol' blue, 06-02-2012 07:34 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 5,534
    06-04-2012, 05:18 AM Go to last post
  42. Condensor fan running backwards

    Started by sborocom, 05-31-2012 11:07 PM
    backwards, condensor, fan
    • Replies: 4
    • Views: 1,554
    06-02-2012, 09:35 PM Go to last post
  43. Older Trane Equipment

    Started by tjeffers, 05-31-2012 05:03 PM
    • Replies: 0
    • Views: 1,075
    05-31-2012, 05:03 PM Go to last post
  44. Filters In Fan Powered Boxes

    Started by rains612, 05-29-2012 08:42 AM
    • Replies: 2
    • Views: 1,333
    05-30-2012, 11:37 PM Go to last post
  45. HVAC in the mushroom industry?

    Started by ConnorMeyers, 05-29-2012 09:27 AM
    commercial, commercial hvac, hvac
    • Replies: 6
    • Views: 3,061
    05-30-2012, 09:48 PM Go to last post
  46. Hmm Trane Model #

    Started by dhigs, 05-29-2012 07:58 PM
    • Replies: 2
    • Views: 1,153
    05-30-2012, 08:56 AM Go to last post
  47. another liebert humidity problem

    Started by brownplus, 03-27-2012 06:41 PM
    • Replies: 2
    • Views: 1,760
    05-29-2012, 10:42 AM Go to last post

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