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Forum: AOP Commercial HVAC

FOR EQUIPMENT OWNERS ONLY Questions and discussions regarding Commercial Buildings

  1. Sticky Thread Sticky: >>READ THIS FIRST<< NO DIY? Why NOT??

    Started by Dad, 10-31-2011 07:41 PM
    • Replies: 0
    • Views: 4,381
    10-31-2011, 07:41 PM Go to last post
  2. Sticky Thread Sticky: A must read for all members...Who can reply to the AOP area

    Started by Dad, 10-31-2011 07:37 PM
    • Replies: 0
    • Views: 3,665
    10-31-2011, 07:37 PM Go to last post
  1. Piping material for sprinkler system

    Started by hasni, 07-02-2012 09:22 AM
    • Replies: 0
    • Views: 710
    07-02-2012, 09:22 AM Go to last post
  2. Carrier Rooftop Gaspack Model #s

    Started by Maikerum, 06-29-2012 01:43 PM
    • Replies: 4
    • Views: 1,355
    07-01-2012, 01:41 PM Go to last post
  3. R22 Retrofit question

    Started by Straick, 06-27-2012 04:47 PM
    • Replies: 9
    • Views: 1,888
    06-30-2012, 10:24 PM Go to last post
  4. Atlanta HVAC contractor

    Started by MariettaGA, 06-20-2012 03:01 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 1,708
    06-28-2012, 02:06 PM Go to last post
  5. Dust Issue in Warehouse home.

    Started by Amitayus, 06-15-2012 05:16 AM
    • Replies: 11
    • Views: 1,887
    06-27-2012, 08:33 PM Go to last post
  6. CLOSED LOOP HVAC SEDIMENT

    Started by calypso, 06-27-2012 08:14 PM
    • Replies: 0
    • Views: 866
    06-27-2012, 08:14 PM Go to last post
  7. McQuay Alarm code

    Started by Lloyd Mc, 06-20-2012 01:17 PM
    • Replies: 2
    • Views: 1,528
    06-27-2012, 05:16 PM Go to last post
  8. Is there a chiller type comparison chart?

    Started by Grawburg, 05-22-2008 09:10 PM
    • Replies: 3
    • Views: 1,803
    06-27-2012, 05:12 PM Go to last post
  9. System controller recommendations ? PLC ?

    Started by Nihilist, 06-27-2012 11:09 AM
    • Replies: 1
    • Views: 644
    06-27-2012, 03:03 PM Go to last post
  10. Liebert 3000 Challenger freezing up

    Started by frontierfrost, 06-26-2012 09:31 AM
    freeze problems, liebert commercial hvac
    • Replies: 5
    • Views: 1,020
    06-27-2012, 08:39 AM Go to last post
  11. Confused Low pressure cut-off switch

    Started by Bobby67, 06-25-2012 02:58 PM
    • Replies: 5
    • Views: 2,321
    06-26-2012, 10:14 PM Go to last post
  12. Condenser water inline booster pumps

    Started by cleancondenser, 11-02-2011 10:42 AM
    • Replies: 3
    • Views: 2,112
    06-26-2012, 07:26 PM Go to last post
  13. Drycleaning machine fridge problems

    Started by slicksilver79, 06-25-2012 01:52 AM
    • Replies: 4
    • Views: 1,215
    06-26-2012, 06:39 PM Go to last post
  14. Confused Walk-in box with outdoor compressor

    Started by Bobby67, 08-26-2011 12:42 PM
    • Replies: 10
    • Views: 2,620
    06-26-2012, 04:46 PM Go to last post
  15. refrigeration piping underground

    Started by gem6376, 06-25-2012 02:52 PM
    • Replies: 1
    • Views: 910
    06-26-2012, 05:59 AM Go to last post
  16. Question Walkin using Mp89

    Started by jdragun, 06-22-2012 05:19 PM
    • Replies: 2
    • Views: 766
    06-23-2012, 12:10 PM Go to last post
  17. Dripping Ducts

    Started by harpoonhannas, 05-07-2012 03:54 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 3,135
    06-22-2012, 06:12 PM Go to last post
  18. N2 electricity-btu meter

    Started by glompos21, 06-22-2012 04:22 PM
    • Replies: 0
    • Views: 932
    06-22-2012, 04:22 PM Go to last post
  19. Trane Chiller MPL alarm

    Started by Dumas22, 06-15-2012 11:22 AM
    2 Pages
    1 2
    • Replies: 15
    • Views: 2,421
    06-22-2012, 01:22 PM Go to last post
  20. Confused Trane chiller oil fault

    Started by carlitosway983, 06-22-2012 10:28 AM
    • Replies: 2
    • Views: 943
    06-22-2012, 11:44 AM Go to last post
  21. Liebert BU067A: compressor unloader valve???

    Started by MrSlim, 02-16-2010 12:14 PM
    • Replies: 3
    • Views: 2,114
    06-21-2012, 10:35 PM Go to last post
  22. data aire nuisance trip

    Started by rockbeach, 06-17-2012 11:18 AM
    • Replies: 4
    • Views: 1,247
    06-20-2012, 09:45 PM Go to last post
  23. Micro-Channel

    Started by retube, 03-31-2011 06:43 PM
    2 Pages
    1 2
    • Replies: 14
    • Views: 4,263
    06-20-2012, 02:12 PM Go to last post
  24. Pre-Install advice for a Hotel in Mexico

    Started by markorm, 06-18-2012 01:00 PM
    • Replies: 1
    • Views: 619
    06-20-2012, 06:09 AM Go to last post
    • Replies: 1
    • Views: 1,130
    06-19-2012, 09:35 AM Go to last post
  25. McQuay WDC 063 oil pump

    Started by tomt, 04-21-2007 03:23 AM
    • Replies: 1
    • Views: 1,012
    06-16-2012, 01:09 PM Go to last post
  26. Weight of 50hp Century motor?

    Started by xFreebirdx, 03-19-2012 02:59 PM
    • Replies: 8
    • Views: 1,861
    06-16-2012, 01:28 AM Go to last post
  27. Oil change question

    Started by tikiman1, 06-15-2012 10:14 AM
    • Replies: 2
    • Views: 703
    06-15-2012, 10:58 PM Go to last post
    • Replies: 3
    • Views: 1,756
    06-13-2012, 10:06 PM Go to last post
  28. Hmm I need to know size of my unit

    Started by dreamer315, 06-11-2012 08:21 AM
    • Replies: 6
    • Views: 1,166
    06-12-2012, 10:13 PM Go to last post
  29. Siebe pneumatic valve

    Started by savage24, 11-11-2009 12:06 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 3,574
    06-12-2012, 12:14 PM Go to last post
  30. Would anyone decode these model Numbers?

    Started by Maikerum, 06-11-2012 03:16 PM
    • Replies: 6
    • Views: 1,745
    06-11-2012, 11:15 PM Go to last post
  31. Water leak from Rooftop unit

    Started by DeltaPnutz, 06-11-2012 09:38 PM
    • Replies: 2
    • Views: 950
    06-11-2012, 11:10 PM Go to last post
  32. Hmm Trane Model #?

    Started by vostro1, 06-10-2012 01:00 AM
    • Replies: 2
    • Views: 1,318
    06-10-2012, 10:51 AM Go to last post
  33. Hmm Decode Trane Model number

    Started by Paulica, 06-07-2012 10:07 PM
    • Replies: 3
    • Views: 3,403
    06-08-2012, 09:44 PM Go to last post
  34. Liebert Deluxe 3 display panel issue

    Started by Angel Carlo, 06-06-2012 02:48 PM
    • Replies: 4
    • Views: 981
    06-07-2012, 06:57 AM Go to last post
  35. Fan Sizing and V.A.V.'s

    Started by techservices, 05-13-2012 10:29 PM
    • Replies: 4
    • Views: 1,006
    06-07-2012, 06:29 AM Go to last post
  36. This is not a DIY post!

    Started by Ghlavenka, 06-04-2012 12:50 PM
    • Replies: 8
    • Views: 1,228
    06-05-2012, 09:29 PM Go to last post
    • Replies: 0
    • Views: 1,174
    06-04-2012, 06:33 PM Go to last post
  37. Mitsubishi Heavy Industries (MHI) Centrifugal Chiller

    Started by cklee, 08-22-2008 10:22 AM
    2 Pages
    1 2
    • Replies: 17
    • Views: 5,044
    06-04-2012, 01:21 PM Go to last post
  38. Suction pressure low, unit freezing

    Started by ol' blue, 06-02-2012 07:34 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 4,634
    06-04-2012, 05:18 AM Go to last post
  39. Condensor fan running backwards

    Started by sborocom, 05-31-2012 11:07 PM
    backwards, condensor, fan
    • Replies: 4
    • Views: 1,430
    06-02-2012, 09:35 PM Go to last post
  40. Older Trane Equipment

    Started by tjeffers, 05-31-2012 05:03 PM
    • Replies: 0
    • Views: 947
    05-31-2012, 05:03 PM Go to last post
  41. Filters In Fan Powered Boxes

    Started by rains612, 05-29-2012 08:42 AM
    • Replies: 2
    • Views: 1,207
    05-30-2012, 11:37 PM Go to last post
  42. HVAC in the mushroom industry?

    Started by ConnorMeyers, 05-29-2012 09:27 AM
    commercial, commercial hvac, hvac
    • Replies: 6
    • Views: 2,566
    05-30-2012, 09:48 PM Go to last post
  43. Hmm Trane Model #

    Started by dhigs, 05-29-2012 07:58 PM
    • Replies: 2
    • Views: 999
    05-30-2012, 08:56 AM Go to last post
  44. another liebert humidity problem

    Started by brownplus, 03-27-2012 06:41 PM
    • Replies: 2
    • Views: 1,594
    05-29-2012, 10:42 AM Go to last post
  45. I have a liebert humidity problem also

    Started by CargCorleg, 05-28-2012 11:37 AM
    • Replies: 2
    • Views: 676
    05-29-2012, 10:14 AM Go to last post
  46. wastewater lineset failure

    Started by jswin, 04-23-2012 01:26 PM
    • Replies: 9
    • Views: 1,326
    05-29-2012, 10:05 AM Go to last post

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