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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: 6,550
    10-31-2011, 07:41 PM Go to last post
    • Replies: 0
    • Views: 5,621
    10-31-2011, 07:37 PM Go to last post
  1. Normal Thread Normal Threads

  2. Problem with Liebert icom

    Started by khaxan, 07-06-2012 04:34 PM
    • Replies: 1
    • Views: 1,347
    07-09-2012, 05:58 PM Go to last post
  3. Commercial Walk In Freezer - PMs

    Started by DiningDirector100, 07-02-2012 12:46 PM
    • Replies: 2
    • Views: 1,131
    07-07-2012, 03:19 PM Go to last post
  4. carrier 30hxc oil problems????????

    Started by djgribbell, 11-12-2009 10:26 PM
    • Replies: 10
    • Views: 3,435
    07-06-2012, 08:31 PM Go to last post
  5. Specking Rooftop York gaspak A/C

    Started by Maikerum, 07-06-2012 03:06 PM
    • Replies: 1
    • Views: 984
    07-06-2012, 07:22 PM Go to last post
  6. York XTI-045 X 084-HAKA 046A

    Started by corny, 07-22-2011 07:18 AM
    • Replies: 4
    • Views: 3,252
    07-05-2012, 09:49 PM Go to last post
  7. Yet another carrier model #

    Started by Maikerum, 07-02-2012 01:59 PM
    • Replies: 2
    • Views: 1,091
    07-05-2012, 09:36 AM Go to last post
  8. Piping material for sprinkler system

    Started by hasni, 07-02-2012 09:22 AM
    • Replies: 0
    • Views: 832
    07-02-2012, 09:22 AM Go to last post
  9. Carrier Rooftop Gaspack Model #s

    Started by Maikerum, 06-29-2012 01:43 PM
    • Replies: 4
    • Views: 1,705
    07-01-2012, 01:41 PM Go to last post
  10. R22 Retrofit question

    Started by Straick, 06-27-2012 04:47 PM
    • Replies: 9
    • Views: 2,197
    06-30-2012, 10:24 PM Go to last post
  11. Atlanta HVAC contractor

    Started by MariettaGA, 06-20-2012 03:01 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 2,016
    06-28-2012, 02:06 PM Go to last post
  12. Dust Issue in Warehouse home.

    Started by Amitayus, 06-15-2012 05:16 AM
    • Replies: 11
    • Views: 2,320
    06-27-2012, 08:33 PM Go to last post
  13. CLOSED LOOP HVAC SEDIMENT

    Started by calypso, 06-27-2012 08:14 PM
    • Replies: 0
    • Views: 969
    06-27-2012, 08:14 PM Go to last post
  14. McQuay Alarm code

    Started by Lloyd Mc, 06-20-2012 01:17 PM
    • Replies: 2
    • Views: 1,832
    06-27-2012, 05:16 PM Go to last post
  15. Is there a chiller type comparison chart?

    Started by Grawburg, 05-22-2008 09:10 PM
    • Replies: 3
    • Views: 2,047
    06-27-2012, 05:12 PM Go to last post
  16. System controller recommendations ? PLC ?

    Started by Nihilist, 06-27-2012 11:09 AM
    • Replies: 1
    • Views: 735
    06-27-2012, 03:03 PM Go to last post
  17. Liebert 3000 Challenger freezing up

    Started by frontierfrost, 06-26-2012 09:31 AM
    freeze problems, liebert commercial hvac
    • Replies: 5
    • Views: 1,204
    06-27-2012, 08:39 AM Go to last post
  18. Confused Low pressure cut-off switch

    Started by Bobby67, 06-25-2012 02:58 PM
    • Replies: 5
    • Views: 2,966
    06-26-2012, 10:14 PM Go to last post
  19. Condenser water inline booster pumps

    Started by cleancondenser, 11-02-2011 10:42 AM
    • Replies: 3
    • Views: 2,372
    06-26-2012, 07:26 PM Go to last post
  20. Drycleaning machine fridge problems

    Started by slicksilver79, 06-25-2012 01:52 AM
    • Replies: 4
    • Views: 1,486
    06-26-2012, 06:39 PM Go to last post
  21. Confused Walk-in box with outdoor compressor

    Started by Bobby67, 08-26-2011 12:42 PM
    • Replies: 10
    • Views: 2,946
    06-26-2012, 04:46 PM Go to last post
  22. refrigeration piping underground

    Started by gem6376, 06-25-2012 02:52 PM
    • Replies: 1
    • Views: 1,095
    06-26-2012, 05:59 AM Go to last post
  23. Question Walkin using Mp89

    Started by jdragun, 06-22-2012 05:19 PM
    • Replies: 2
    • Views: 917
    06-23-2012, 12:10 PM Go to last post
  24. Dripping Ducts

    Started by harpoonhannas, 05-07-2012 03:54 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 3,568
    06-22-2012, 06:12 PM Go to last post
  25. N2 electricity-btu meter

    Started by glompos21, 06-22-2012 04:22 PM
    • Replies: 0
    • Views: 1,645
    06-22-2012, 04:22 PM Go to last post
  26. Trane Chiller MPL alarm

    Started by Dumas22, 06-15-2012 11:22 AM
    2 Pages
    1 2
    • Replies: 15
    • Views: 3,025
    06-22-2012, 01:22 PM Go to last post
  27. Confused Trane chiller oil fault

    Started by carlitosway983, 06-22-2012 10:28 AM
    • Replies: 2
    • Views: 1,100
    06-22-2012, 11:44 AM Go to last post
  28. Liebert BU067A: compressor unloader valve???

    Started by MrSlim, 02-16-2010 01:14 PM
    • Replies: 3
    • Views: 2,344
    06-21-2012, 10:35 PM Go to last post
  29. data aire nuisance trip

    Started by rockbeach, 06-17-2012 11:18 AM
    • Replies: 4
    • Views: 1,477
    06-20-2012, 09:45 PM Go to last post
  30. Micro-Channel

    Started by retube, 03-31-2011 06:43 PM
    2 Pages
    1 2
    • Replies: 14
    • Views: 4,868
    06-20-2012, 02:12 PM Go to last post
  31. Pre-Install advice for a Hotel in Mexico

    Started by markorm, 06-18-2012 01:00 PM
    • Replies: 1
    • Views: 694
    06-20-2012, 06:09 AM Go to last post
    • Replies: 1
    • Views: 1,343
    06-19-2012, 09:35 AM Go to last post
  32. McQuay WDC 063 oil pump

    Started by tomt, 04-21-2007 03:23 AM
    • Replies: 1
    • Views: 1,136
    06-16-2012, 01:09 PM Go to last post
  33. Weight of 50hp Century motor?

    Started by xFreebirdx, 03-19-2012 02:59 PM
    • Replies: 8
    • Views: 2,143
    06-16-2012, 01:28 AM Go to last post
  34. Oil change question

    Started by tikiman1, 06-15-2012 10:14 AM
    • Replies: 2
    • Views: 811
    06-15-2012, 10:58 PM Go to last post
    • Replies: 3
    • Views: 2,041
    06-13-2012, 10:06 PM Go to last post
  35. Hmm I need to know size of my unit

    Started by dreamer315, 06-11-2012 08:21 AM
    • Replies: 6
    • Views: 1,411
    06-12-2012, 10:13 PM Go to last post
  36. Siebe pneumatic valve

    Started by savage24, 11-11-2009 01:06 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 4,035
    06-12-2012, 12:14 PM Go to last post
  37. Would anyone decode these model Numbers?

    Started by Maikerum, 06-11-2012 03:16 PM
    • Replies: 6
    • Views: 2,059
    06-11-2012, 11:15 PM Go to last post
  38. Water leak from Rooftop unit

    Started by DeltaPnutz, 06-11-2012 09:38 PM
    • Replies: 2
    • Views: 1,128
    06-11-2012, 11:10 PM Go to last post
  39. Hmm Trane Model #?

    Started by vostro1, 06-10-2012 01:00 AM
    • Replies: 2
    • Views: 1,590
    06-10-2012, 10:51 AM Go to last post
  40. Hmm Decode Trane Model number

    Started by Paulica, 06-07-2012 10:07 PM
    • Replies: 3
    • Views: 4,238
    06-08-2012, 09:44 PM Go to last post
  41. Liebert Deluxe 3 display panel issue

    Started by Angel Carlo, 06-06-2012 02:48 PM
    • Replies: 4
    • Views: 1,155
    06-07-2012, 06:57 AM Go to last post
  42. Fan Sizing and V.A.V.'s

    Started by techservices, 05-13-2012 10:29 PM
    • Replies: 4
    • Views: 1,133
    06-07-2012, 06:29 AM Go to last post
  43. This is not a DIY post!

    Started by Ghlavenka, 06-04-2012 12:50 PM
    • Replies: 8
    • Views: 1,405
    06-05-2012, 09:29 PM Go to last post
    • Replies: 0
    • Views: 1,337
    06-04-2012, 06:33 PM Go to last post
  44. Mitsubishi Heavy Industries (MHI) Centrifugal Chiller

    Started by cklee, 08-22-2008 10:22 AM
    2 Pages
    1 2
    • Replies: 17
    • Views: 5,760
    06-04-2012, 01:21 PM Go to last post
  45. Suction pressure low, unit freezing

    Started by ol' blue, 06-02-2012 07:34 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 6,191
    06-04-2012, 05:18 AM Go to last post
  46. Condensor fan running backwards

    Started by sborocom, 05-31-2012 11:07 PM
    backwards, condensor, fan
    • Replies: 4
    • Views: 1,590
    06-02-2012, 09:35 PM Go to last post
  47. Older Trane Equipment

    Started by tjeffers, 05-31-2012 05:03 PM
    • Replies: 0
    • Views: 1,112
    05-31-2012, 05:03 PM Go to last post

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