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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: 10,026
    10-31-2011, 07:41 PM Go to last post
    • Replies: 0
    • Views: 8,738
    10-31-2011, 07:37 PM Go to last post
  1. Normal Thread Normal Threads

  2. Hmm Siemens VFD Failure

    Started by crons, 01-08-2009 08:53 AM
    • Replies: 9
    • Views: 3,837
    01-24-2009, 01:06 PM Go to last post
  3. Trane SWUD question

    Started by buildingengineer, 01-21-2009 10:42 AM
    • Replies: 3
    • Views: 1,168
    01-24-2009, 01:04 PM Go to last post
  4. Honeywell Wiring

    Started by Raively, 01-17-2009 07:14 PM
    • Replies: 8
    • Views: 1,030
    01-24-2009, 12:07 PM Go to last post
  5. Roto Lock Nightmare

    Started by madhat, 01-23-2009 12:19 PM
    • Replies: 5
    • Views: 1,681
    01-24-2009, 09:41 AM Go to last post
  6. Confused carrier chiller

    Started by andyh, 01-14-2009 11:09 PM
    • Replies: 11
    • Views: 1,097
    01-24-2009, 01:28 AM Go to last post
  7. 500 KVA transformers

    Started by sigma, 01-23-2009 07:10 PM
    • Replies: 9
    • Views: 1,455
    01-24-2009, 01:06 AM Go to last post
  8. Trane SCWD Economizer Purge

    Started by chadtech, 01-21-2009 01:24 PM
    2 Pages
    1 2
    • Replies: 14
    • Views: 3,077
    01-23-2009, 08:24 PM Go to last post
  9. CVHE UCP695 Code F3

    Started by CaptJackSparrow, 01-23-2009 04:53 PM
    • Replies: 1
    • Views: 932
    01-23-2009, 07:56 PM Go to last post
  10. Hmm 30 HXC 155 A

    Started by kedar kulkarni, 01-23-2009 06:46 AM
    • Replies: 7
    • Views: 2,408
    01-23-2009, 07:37 PM Go to last post
  11. Question Who makes glycol-only winter server room cooling? (not a/c)

    Started by scalar, 12-20-2008 06:29 AM
    2 Pages
    1 2
    • Replies: 24
    • Views: 2,841
    01-23-2009, 04:02 PM Go to last post
  12. Need a York YCAL chiller manual

    Started by Tubes110, 08-01-2008 04:01 PM
    • Replies: 9
    • Views: 11,698
    01-23-2009, 09:55 AM Go to last post
  13. YK overhaul

    Started by r404a, 07-05-2008 01:30 AM
    • Replies: 9
    • Views: 2,749
    01-23-2009, 07:56 AM Go to last post
  14. Trane WSHP - Low Leaving Water Temp Fault

    Started by newgage, 01-21-2009 10:18 PM
    • Replies: 7
    • Views: 1,520
    01-23-2009, 07:46 AM Go to last post
  15. Stulz mini Split?

    Started by sol, 01-11-2009 08:16 AM
    • Replies: 2
    • Views: 1,062
    01-23-2009, 01:24 AM Go to last post
  16. LOCHINVAR

    Started by snupytcb, 01-22-2009 12:22 PM
    • Replies: 1
    • Views: 884
    01-22-2009, 11:03 PM Go to last post
  17. LIEBERT COOLING SYSTEM

    Started by edlerjoy, 01-12-2009 04:58 AM
    • Replies: 8
    • Views: 11,509
    01-22-2009, 10:53 PM Go to last post
    • Replies: 1
    • Views: 672
    01-22-2009, 03:10 PM Go to last post
  18. Heating load calculation

    Started by hasni, 01-17-2009 02:18 AM
    • Replies: 3
    • Views: 679
    01-22-2009, 01:12 PM Go to last post
  19. What type of motoris this

    Started by mapleman, 01-22-2009 08:43 AM
    • Replies: 1
    • Views: 601
    01-22-2009, 11:37 AM Go to last post
  20. 277V htr

    Started by ndcoh, 01-21-2009 08:26 PM
    • Replies: 3
    • Views: 750
    01-22-2009, 10:24 AM Go to last post
  21. Load Calculations for IT Server Rooms?

    Started by Bill Bednarick, 01-14-2009 11:34 PM
    2 Pages
    1 2
    • Replies: 13
    • Views: 2,947
    01-22-2009, 08:13 AM Go to last post
  22. 1996 lennox

    Started by toptech, 01-21-2009 09:37 PM
    • Replies: 2
    • Views: 729
    01-21-2009, 10:07 PM Go to last post
  23. HP in marine environment / dirty sock smell

    Started by soundbalance, 01-20-2009 02:04 PM
    • Replies: 4
    • Views: 795
    01-21-2009, 08:39 PM Go to last post
  24. old timers have you worked on a screw

    Started by lb32g, 01-20-2009 10:04 PM
    • Replies: 3
    • Views: 737
    01-21-2009, 05:42 PM Go to last post
  25. JCI Layoffs, Pay Freeze & Benifit Loss

    Started by jslimjeff, 01-19-2009 03:55 PM
    • Replies: 6
    • Views: 1,595
    01-21-2009, 10:58 AM Go to last post
  26. VFD training

    Started by chillerguy81, 01-12-2009 08:42 PM
    • Replies: 8
    • Views: 2,591
    01-21-2009, 09:02 AM Go to last post
  27. Smile hi

    Started by raidersfan7, 01-20-2009 11:01 PM
    • Replies: 1
    • Views: 584
    01-21-2009, 02:09 AM Go to last post
  28. Compressor repairing

    Started by STANTEC, 08-26-2008 11:30 AM
    • Replies: 9
    • Views: 1,322
    01-20-2009, 11:02 PM Go to last post
  29. Confused 400 ton 19dm

    Started by turbovac, 01-17-2009 09:15 AM
    2 Pages
    1 2
    • Replies: 13
    • Views: 2,444
    01-20-2009, 06:30 PM Go to last post
  30. Talking about other companies.

    Started by tonyshelton, 01-10-2009 01:22 AM
    3 Pages
    1 2 3
    • Replies: 27
    • Views: 2,587
    01-20-2009, 12:37 PM Go to last post
  31. Carrier 19XR chiller oil heater leak

    Started by consolidmech, 01-19-2009 12:47 PM
    • Replies: 2
    • Views: 2,154
    01-19-2009, 10:41 PM Go to last post
  32. Basic design criteria Western PA??

    Started by jpsmith1cm, 01-16-2009 08:58 PM
    2 Pages
    1 2
    • Replies: 13
    • Views: 1,031
    01-19-2009, 10:39 PM Go to last post
  33. Liebert Mini Mate Problem

    Started by hands, 01-16-2009 09:13 PM
    • Replies: 12
    • Views: 3,832
    01-18-2009, 12:47 PM Go to last post
  34. Trane rooftop zoning questions

    Started by luv2cruiserccl, 01-14-2009 12:27 PM
    • Replies: 4
    • Views: 1,417
    01-18-2009, 10:26 AM Go to last post
  35. Non-Pleated filters - the Salt test

    Started by tonyshelton, 01-15-2009 08:11 PM
    3 Pages
    1 2 3
    • Replies: 27
    • Views: 2,678
    01-18-2009, 02:36 AM Go to last post
  36. 5 Ton Trane RTU Sooting/ need help

    Started by Freezeking2000, 01-16-2009 01:08 PM
    • Replies: 11
    • Views: 2,791
    01-17-2009, 11:04 PM Go to last post
  37. York D1SS240

    Started by FulhamSC, 01-14-2009 09:11 PM
    • Replies: 5
    • Views: 1,526
    01-17-2009, 07:30 PM Go to last post
  38. Cimco ice rink chiller

    Started by DITAW, 01-17-2009 12:05 PM
    • Replies: 0
    • Views: 927
    01-17-2009, 12:05 PM Go to last post
  39. Confused 2-pipe heating and cooling?

    Started by Delta Guy, 01-02-2009 06:37 PM
    2 Pages
    1 2
    • Replies: 20
    • Views: 3,026
    01-17-2009, 08:08 AM Go to last post
  40. RTAA Low Evap Temp Fault

    Started by mountainman, 01-13-2009 09:37 AM
    • Replies: 6
    • Views: 1,248
    01-17-2009, 01:18 AM Go to last post
  41. Why ammonia refrigeration system

    Started by hasni, 01-13-2009 06:26 AM
    • Replies: 6
    • Views: 1,253
    01-16-2009, 10:39 PM Go to last post
  42. Reliatel weirdness

    Started by hvac_czar, 02-08-2008 06:24 PM
    • Replies: 10
    • Views: 1,315
    01-16-2009, 07:07 PM Go to last post
  43. Duct Sizes

    Started by wspascoe, 01-15-2009 09:48 PM
    • Replies: 5
    • Views: 3,455
    01-16-2009, 06:42 PM Go to last post
  44. LaSalle Air Handlers?

    Started by Engineer_Josh, 01-16-2009 06:05 PM
    • Replies: 0
    • Views: 1,543
    01-16-2009, 06:05 PM Go to last post
  45. Why no interest in these air filters?

    Started by tonyshelton, 01-09-2009 11:54 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 88
    • Views: 9,189
    01-16-2009, 05:21 PM Go to last post
  46. Cool 460 Volt 's/p' run capacitor 'question'

    Started by rnoel, 01-13-2009 09:01 PM
    • Replies: 11
    • Views: 3,352
    01-16-2009, 09:42 AM Go to last post
  47. Cool RTAA trips on Low Pressure Cutout

    Started by koolncali, 01-13-2009 09:51 PM
    3 Pages
    1 2 3
    • Replies: 27
    • Views: 4,491
    01-16-2009, 02:22 AM Go to last post
  48. VVT system installed - customer complaints

    Started by mk123, 01-08-2009 05:29 PM
    3 Pages
    1 2 3
    • Replies: 31
    • Views: 3,534
    01-15-2009, 11:30 PM Go to last post
  49. York water cooled screw issues

    Started by r404a, 07-31-2008 12:53 AM
    • Replies: 7
    • Views: 1,401
    01-15-2009, 08:16 PM Go to last post
  50. Question Electric Accessory Heat (for heat pump app)

    Started by michigan1, 01-14-2009 10:24 PM
    • Replies: 2
    • Views: 537
    01-15-2009, 06:45 PM Go to last post

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