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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: 9,450
    10-31-2011, 07:41 PM Go to last post
    • Replies: 0
    • Views: 8,252
    10-31-2011, 07:37 PM Go to last post
  1. Normal Thread Normal Threads

  2. McQuay AGS 420B Noise

    Started by PaulDiglio, 11-25-2007 09:57 AM
    • Replies: 3
    • Views: 918
    11-26-2007, 10:05 PM Go to last post
  3. York Centrifugal Chiller-No Oil Return

    Started by bunglebear, 11-23-2007 07:53 AM
    • Replies: 6
    • Views: 4,461
    11-26-2007, 02:57 PM Go to last post
  4. TRANE CHHB070 Lip Seal

    Started by pete_d, 11-16-2007 02:42 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 4,058
    11-26-2007, 01:14 PM Go to last post
  5. Robert shaw

    Started by cyro, 11-20-2007 11:26 PM
    • Replies: 1
    • Views: 1,274
    11-26-2007, 09:53 AM Go to last post
  6. Confused Fluid Cooler Loop ----- strange pressures

    Started by ScottG, 11-22-2007 05:13 AM
    2 Pages
    1 2
    • Replies: 13
    • Views: 1,950
    11-25-2007, 11:24 PM Go to last post
  7. Looking for gas burner nozzles

    Started by SpinCycle2000, 11-25-2007 02:24 AM
    • Replies: 1
    • Views: 1,109
    11-25-2007, 06:42 AM Go to last post
  8. Liebert Humidifier Fill Valve

    Started by Tech Rob, 11-20-2007 08:25 PM
    • Replies: 11
    • Views: 2,676
    11-25-2007, 12:23 AM Go to last post
  9. looking for an old absoption chiller

    Started by koron, 11-24-2007 04:52 PM
    • Replies: 0
    • Views: 527
    11-24-2007, 04:52 PM Go to last post
  10. york rooftop

    Started by coldtech83, 10-24-2007 08:34 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 4,331
    11-24-2007, 02:02 AM Go to last post
  11. Lennox Pkg Heat Pump Unit - Defrost Problem

    Started by dixie2005, 11-23-2007 03:03 PM
    • Replies: 2
    • Views: 1,106
    11-23-2007, 03:34 PM Go to last post
  12. Triple Duty Valve

    Started by zombietech66, 11-21-2007 12:14 AM
    • Replies: 4
    • Views: 1,549
    11-23-2007, 11:28 AM Go to last post
  13. difference across coil

    Started by comer, 11-14-2007 08:48 AM
    • Replies: 7
    • Views: 1,309
    11-23-2007, 01:10 AM Go to last post
  14. Natural Gas Regulators?

    Started by turbo50mike, 11-13-2006 11:03 PM
    2 Pages
    1 2
    • Replies: 21
    • Views: 2,850
    11-22-2007, 02:44 PM Go to last post
  15. Any Williams Trane guys on here????

    Started by acjourneyman, 11-17-2007 03:31 PM
    • Replies: 4
    • Views: 1,227
    11-22-2007, 02:15 PM Go to last post
  16. Voyager room humidity sensor

    Started by tech4445, 11-21-2007 08:36 PM
    • Replies: 2
    • Views: 1,541
    11-22-2007, 09:12 AM Go to last post
  17. Capacitor-Start

    Started by hvactech80, 11-20-2007 09:51 PM
    • Replies: 7
    • Views: 1,218
    11-22-2007, 12:48 AM Go to last post
  18. help

    Started by vledxam, 11-16-2007 08:28 PM
    • Replies: 4
    • Views: 801
    11-21-2007, 08:59 PM Go to last post
  19. Old Commercial Equipment Specs?

    Started by salesmaker, 11-21-2007 09:14 AM
    • Replies: 1
    • Views: 827
    11-21-2007, 07:28 PM Go to last post
  20. York stuck in pumpdown

    Started by Copernicus, 11-19-2007 03:43 PM
    • Replies: 10
    • Views: 1,566
    11-21-2007, 07:21 PM Go to last post
  21. need contact for trane, L.A. area

    Started by vledxam, 11-15-2007 05:14 PM
    • Replies: 4
    • Views: 861
    11-21-2007, 11:56 AM Go to last post
  22. Confused Engineers F-Up

    Started by mechmike2, 11-20-2007 07:35 PM
    • Replies: 5
    • Views: 1,120
    11-20-2007, 10:15 PM Go to last post
  23. Confused 38AH044-084 compressor problems

    Started by sanantoniotech, 11-20-2007 01:58 PM
    • Replies: 3
    • Views: 1,058
    11-20-2007, 08:58 PM Go to last post
  24. RTAA oil filter

    Started by jemawalton, 11-06-2007 09:33 AM
    3 Pages
    1 2 3
    • Replies: 29
    • Views: 4,803
    11-20-2007, 06:31 PM Go to last post
  25. Question Servise password to YORK YCAJ 77 XT9

    Started by zawin, 06-26-2006 01:27 AM
    • Replies: 5
    • Views: 3,115
    11-19-2007, 02:39 PM Go to last post
  26. Conversion formulas

    Started by SeasonMaster, 11-15-2007 04:13 AM
    • Replies: 2
    • Views: 1,600
    11-19-2007, 07:53 AM Go to last post
  27. raypack

    Started by gandm, 11-17-2007 10:48 PM
    • Replies: 1
    • Views: 1,006
    11-18-2007, 07:14 PM Go to last post
  28. Noise and Drafts

    Started by techreptdh, 11-17-2007 05:38 PM
    • Replies: 3
    • Views: 807
    11-18-2007, 06:24 PM Go to last post
  29. Question Type- K or Type -J

    Started by westendmechanical, 11-18-2007 08:27 AM
    • Replies: 1
    • Views: 1,130
    11-18-2007, 08:37 AM Go to last post
    • Replies: 1
    • Views: 760
    11-17-2007, 04:05 PM Go to last post
  30. Trane & Honeywell

    Started by trane_stud, 11-14-2006 08:40 PM
    3 Pages
    1 2 3
    • Replies: 34
    • Views: 8,660
    11-17-2007, 03:10 PM Go to last post
  31. YK Style E service bulletins??

    Started by bertoh, 11-16-2007 03:58 PM
    • Replies: 2
    • Views: 1,207
    11-17-2007, 01:29 PM Go to last post
  32. Liebert Hum calibration, RH or Abs?

    Started by D'Laine, 11-13-2007 10:42 PM
    • Replies: 2
    • Views: 804
    11-17-2007, 12:18 PM Go to last post
  33. Cool Carbon Black

    Started by PJ's cool-aid, 11-08-2007 10:27 PM
    • Replies: 6
    • Views: 1,076
    11-17-2007, 09:09 AM Go to last post
  34. wirsbo radiant floor heat

    Started by oldtimer2, 11-13-2007 08:54 PM
    • Replies: 1
    • Views: 777
    11-16-2007, 10:20 PM Go to last post
  35. determining refrigerant charge

    Started by trev, 11-15-2007 04:17 PM
    • Replies: 3
    • Views: 1,230
    11-16-2007, 09:40 PM Go to last post
  36. Titus Equipment?

    Started by heaviwall, 11-16-2007 05:12 PM
    • Replies: 1
    • Views: 1,389
    11-16-2007, 09:10 PM Go to last post
  37. Command-Aire RCA 404-14.6

    Started by oldhweller, 11-16-2007 03:14 PM
    • Replies: 2
    • Views: 1,036
    11-16-2007, 05:01 PM Go to last post
  38. Looking For CO Meter

    Started by jogas, 11-12-2007 06:30 PM
    • Replies: 2
    • Views: 886
    11-16-2007, 04:41 PM Go to last post
  39. copeland 6D compressor

    Started by lawrencep, 11-15-2007 04:08 PM
    • Replies: 5
    • Views: 1,314
    11-16-2007, 10:56 AM Go to last post
  40. Hmm CB tubes are cracked

    Started by nazawale, 11-15-2007 06:47 AM
    • Replies: 3
    • Views: 1,129
    11-16-2007, 10:01 AM Go to last post
  41. Hmm Condensor Water Treatment

    Started by ggsekhar, 11-15-2007 12:35 PM
    • Replies: 2
    • Views: 1,123
    11-15-2007, 10:21 PM Go to last post
  42. kw = amps

    Started by hands, 11-05-2007 09:05 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 3,315
    11-15-2007, 05:46 PM Go to last post
  43. Smile GeoTherm WaterFurnace Leak

    Started by braveheart51, 11-14-2007 09:49 PM
    • Replies: 4
    • Views: 1,338
    11-15-2007, 10:13 AM Go to last post
  44. Confused compressor icing

    Started by dean stahl, 11-08-2007 09:27 PM
    • Replies: 11
    • Views: 4,449
    11-15-2007, 12:04 AM Go to last post
  45. Liebert System 3

    Started by local602, 11-09-2007 10:35 PM
    2 Pages
    1 2
    • Replies: 19
    • Views: 9,352
    11-14-2007, 05:23 PM Go to last post
  46. A051 Alarm on Carrier Comfortlink chiller

    Started by rusdtech, 11-13-2007 06:46 PM
    • Replies: 5
    • Views: 4,680
    11-14-2007, 02:53 PM Go to last post
  47. Air flow problems / coil placement issues

    Started by hvacmedic, 10-18-2007 01:20 PM
    • Replies: 7
    • Views: 1,033
    11-14-2007, 10:35 AM Go to last post
  48. Transformer

    Started by wellhung, 11-12-2007 01:48 AM
    • Replies: 5
    • Views: 1,451
    11-14-2007, 12:53 AM Go to last post
  49. What Voltage can I work on.

    Started by sconorton, 11-08-2007 02:34 PM
    2 Pages
    1 2
    • Replies: 20
    • Views: 2,654
    11-13-2007, 09:34 PM Go to last post
  50. Steam to water converter problem

    Started by hvacmedic, 11-11-2007 03:08 AM
    • Replies: 6
    • Views: 1,473
    11-13-2007, 05:34 PM Go to last post

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