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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: 11,691
    10-31-2011, 07:41 PM Go to last post
    • Replies: 0
    • Views: 10,109
    10-31-2011, 07:37 PM Go to last post
  1. Normal Thread Normal Threads

  2. Wilspec transducer

    Started by Gp71, 04-05-2016 10:29 PM
    • Replies: 0
    • Views: 644
    04-05-2016, 10:29 PM Go to last post
  3. 10 Ton 410A scroll

    Started by offshore elect., 04-01-2016 11:41 PM
    • Replies: 5
    • Views: 1,197
    04-03-2016, 08:29 PM Go to last post
  4. Hot Water radiant panels vs Gas radiant tube

    Started by HSim, 11-24-2015 08:49 AM
    • Replies: 6
    • Views: 1,971
    04-03-2016, 03:07 PM Go to last post
  5. Trane wshp

    Started by prosolution, 04-01-2016 02:23 PM
    • Replies: 4
    • Views: 821
    04-01-2016, 08:22 PM Go to last post
  6. Hmm Counterfeit Bitzer Compressors?

    Started by Joe Joe, 03-13-2016 04:41 PM
    • Replies: 1
    • Views: 2,280
    03-13-2016, 07:25 PM Go to last post
  7. Seeking York DXS screw compressor failure data

    Started by CJ868, 03-03-2016 12:21 AM
    • Replies: 0
    • Views: 895
    03-03-2016, 12:21 AM Go to last post
  8. 16HA ABSORBER PUMPS

    Started by MECHGR, 03-02-2016 09:12 AM
    • Replies: 0
    • Views: 734
    03-02-2016, 09:12 AM Go to last post
  9. Cleaver Brooks Conductivity Problems

    Started by russellpierce, 02-29-2016 09:36 AM
    • Replies: 0
    • Views: 899
    02-29-2016, 09:36 AM Go to last post
  10. Delta DAC-1146E controller IP address

    Started by robzc, 02-24-2016 12:43 PM
    • Replies: 0
    • Views: 1,030
    02-24-2016, 12:43 PM Go to last post
  11. Carrier 48TJ Rollout Switch Frustration

    Started by mitchellpsp, 02-22-2016 07:44 PM
    • Replies: 6
    • Views: 1,673
    02-24-2016, 11:15 AM Go to last post
  12. Compressor Replacement Question (Mini Split)

    Started by PrestonX, 12-30-2015 05:33 AM
    • Replies: 3
    • Views: 1,599
    02-23-2016, 08:11 AM Go to last post
  13. Running a water pump dry

    Started by MariettaGA, 02-21-2016 04:19 PM
    • Replies: 6
    • Views: 1,236
    02-22-2016, 11:13 AM Go to last post
  14. Post york YT series E teardown manual needed

    Started by REDNECKANGAROO, 02-16-2016 07:20 PM
    • Replies: 1
    • Views: 989
    02-22-2016, 09:05 AM Go to last post
  15. Controlling humidity in the winter

    Started by Sub guy, 02-18-2016 06:26 PM
    • Replies: 3
    • Views: 1,036
    02-19-2016, 02:45 PM Go to last post
  16. Wink Low Delta T caused by Low Load

    Started by Joshua Tam, 02-18-2016 12:11 AM
    • Replies: 3
    • Views: 1,152
    02-18-2016, 01:31 PM Go to last post
  17. Siemens TX-Bus description

    Started by Honza, 02-15-2016 09:38 AM
    • Replies: 0
    • Views: 670
    02-15-2016, 09:38 AM Go to last post
  18. GAs/Electric/heat pump...etc

    Started by SquirtGun, 02-11-2016 10:59 AM
    • Replies: 3
    • Views: 1,067
    02-13-2016, 08:57 AM Go to last post
  19. YCIV Chiller shows alarm system 3 "gate driver"

    Started by jair_recom, 02-10-2016 12:33 PM
    • Replies: 0
    • Views: 926
    02-10-2016, 12:33 PM Go to last post
  20. Service Bulletin Trane RTHB-150

    Started by tomt, 06-07-2009 05:06 AM
    3 Pages
    1 2 3
    • Replies: 26
    • Views: 7,463
    02-10-2016, 07:49 AM Go to last post
    • Replies: 12
    • Views: 2,349
    02-01-2016, 05:42 PM Go to last post
  21. thermotron

    Started by bulldog53207, 02-01-2016 04:57 PM
    • Replies: 0
    • Views: 816
    02-01-2016, 04:57 PM Go to last post
  22. Contactor replacement

    Started by Vince C, 01-29-2016 11:02 AM
    • Replies: 8
    • Views: 1,562
    01-29-2016, 06:30 PM Go to last post
  23. Gravity Ductwork Sizing vs Forced Air Ductwork

    Started by Omolomo, 01-29-2016 12:42 AM
    • Replies: 1
    • Views: 880
    01-29-2016, 07:40 AM Go to last post
    • Replies: 4
    • Views: 1,787
    01-25-2016, 08:14 PM Go to last post
  24. Commerical bldg: Systems upgrade

    Started by MR_ID10T, 01-25-2016 05:36 PM
    • Replies: 0
    • Views: 843
    01-25-2016, 05:36 PM Go to last post
  25. Rupp MAU

    Started by nutradesman, 01-22-2016 09:12 PM
    • Replies: 1
    • Views: 1,219
    01-23-2016, 02:46 PM Go to last post
  26. kewanee boiler manual needed

    Started by Brian Brutus, 01-22-2016 09:11 PM
    • Replies: 4
    • Views: 1,155
    01-22-2016, 11:22 PM Go to last post
    • Replies: 0
    • Views: 884
    01-20-2016, 06:27 PM Go to last post
  27. 15 ton Roof Top AC/Heater which does NOT used microchannel ?

    Started by raidsystemtech, 12-01-2015 02:11 PM
    4 Pages
    1 2 3 4
    • Replies: 41
    • Views: 6,075
    01-19-2016, 04:57 PM Go to last post
  28. Very simple yes/no thermostat advice please

    Started by univac, 01-19-2016 09:34 AM
    • Replies: 0
    • Views: 868
    01-19-2016, 09:34 AM Go to last post
  29. Truly High Pressure Switch

    Started by ifIknew, 01-17-2016 06:20 PM
    • Replies: 4
    • Views: 1,266
    01-18-2016, 10:50 AM Go to last post
    • Replies: 0
    • Views: 874
    01-16-2016, 05:41 PM Go to last post
    • Replies: 10
    • Views: 1,187
    01-15-2016, 06:25 PM Go to last post
  30. Cooling Tower VS Chillers

    Started by christian292, 01-14-2016 09:32 PM
    • Replies: 0
    • Views: 1,044
    01-14-2016, 09:32 PM Go to last post
  31. Variable Air Volume (VAV) system thermostat

    Started by raidsystemtech, 01-07-2016 09:44 PM
    • Replies: 3
    • Views: 1,218
    01-14-2016, 05:59 PM Go to last post
  32. multifamily

    Started by jjsr, 12-31-2015 12:08 PM
    • Replies: 7
    • Views: 1,880
    01-13-2016, 04:51 PM Go to last post
  33. Anyone know what these are?

    Started by AlDente, 01-12-2016 07:36 PM
    2 Pages
    1 2
    • Replies: 13
    • Views: 2,678
    01-13-2016, 03:46 PM Go to last post
  34. Nesbitt unit heaters (classrooms)

    Started by Flpalla, 01-12-2016 07:47 AM
    • Replies: 2
    • Views: 938
    01-12-2016, 10:18 AM Go to last post
  35. Mcquay SWP070 with Microtech II controls

    Started by mattinorange, 01-11-2016 12:03 PM
    • Replies: 0
    • Views: 900
    01-11-2016, 12:03 PM Go to last post
  36. Smile Trane CVHG oil problem

    Started by Menox, 01-10-2016 08:40 PM
    • Replies: 0
    • Views: 817
    01-10-2016, 08:40 PM Go to last post
  37. Post Fujitsu Airstage Heat Pumps

    Started by fyllsee, 01-10-2016 12:17 AM
    • Replies: 4
    • Views: 1,034
    01-10-2016, 12:27 AM Go to last post
    • Replies: 6
    • Views: 1,227
    01-08-2016, 11:19 AM Go to last post
  38. Confused Cant find the Heat Exchanger A/C

    Started by scott17, 01-06-2016 02:29 AM
    2 Pages
    1 2
    • Replies: 14
    • Views: 2,486
    01-07-2016, 01:45 AM Go to last post
    • Replies: 0
    • Views: 736
    01-06-2016, 04:29 PM Go to last post
    • Replies: 6
    • Views: 1,348
    01-05-2016, 06:30 PM Go to last post
  39. waht kind of a/c units are these?

    Started by ewalker3, 01-04-2016 11:28 PM
    • Replies: 2
    • Views: 1,123
    01-05-2016, 01:08 AM Go to last post
    • Replies: 1
    • Views: 1,201
    12-30-2015, 11:08 PM Go to last post

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