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Forum: Tech to Tech Chat - Commercial

FOR TECHNICAL CHAT BETWEEN INDUSTRY WORKERS ONLY. NO AOP OR DIY** This forum is for Technical Chat in the Commercial Industry and only within the limits of the Open area Rules concerning DIY. Any technical chat that goes too far will be removed or moved to the Pro Area.

  1. Sticky Thread Sticky: NO AOP posts here please. ONLY Tech to Tech chatter

    Started by Dad, 08-10-2011 04:34 PM
    • Replies: 0
    • Views: 4,003
    08-10-2011, 04:34 PM Go to last post
  1. cooling a small server room

    Started by serverroomcooling, 11-16-2004 11:04 AM
    99 Pages
    1 2 3 4 5 6 ... 99
    • Replies: 1,275
    • Views: 115,446
    07-28-2013, 09:10 AM Go to last post
  2. refrigerant restriction

    Started by johnnyb, 05-03-2014 10:37 AM
    19 Pages
    1 2 3 4 5 6 ... 19
    • Replies: 240
    • Views: 6,548
    08-02-2014, 09:11 PM Go to last post
    • Replies: 176
    • Views: 5,626
    07-25-2014, 04:26 PM Go to last post
  3. on call

    Started by northeastbeast, 08-02-2013 07:03 AM
    11 Pages
    1 2 3 4 5 6 ... 11
    • Replies: 134
    • Views: 11,485
    09-15-2013, 10:56 AM Go to last post
    • Replies: 106
    • Views: 8,079
    01-29-2013, 07:00 PM Go to last post
  4. Confused Commercial technician, thinking about switching to residential.

    Started by comoutsid322, 04-22-2013 11:43 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 101
    • Views: 7,706
    09-28-2013, 02:17 PM Go to last post
  5. Carlyle compressor

    Started by Chris1570, 08-22-2013 08:03 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 97
    • Views: 7,471
    05-11-2014, 03:23 PM Go to last post
  6. Plant operator??

    Started by newtradesman, 10-21-2004 04:59 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 96
    • Views: 7,840
    01-21-2013, 05:50 PM Go to last post
    • Replies: 96
    • Views: 6,760
    02-04-2013, 11:14 AM Go to last post
  7. CO2 Purge for brazing?

    Started by dprimrose, 08-18-2009 10:19 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 95
    • Views: 10,526
    05-15-2012, 07:08 PM Go to last post
  8. Anyone doing Family Dollar or Dollar General service?

    Started by MechTech2013, 06-06-2014 02:04 AM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 92
    • Views: 6,128
    09-01-2014, 11:15 PM Go to last post
  9. EXV problems on Carrier 30GT Chiller

    Started by hvac-alan, 09-02-2005 07:23 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 91
    • Views: 31,053
    08-08-2013, 06:59 PM Go to last post
  10. A Fun Question . . .

    Started by BBeerme, 06-27-2014 10:01 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 90
    • Views: 3,044
    07-04-2014, 01:38 AM Go to last post
  11. Brazing with refrigerant in pipe

    Started by HuNGRYTeCH, 05-22-2012 03:15 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 86
    • Views: 9,718
    06-21-2012, 10:06 PM Go to last post
  12. VRF

    Started by acman17, 05-19-2014 08:20 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 86
    • Views: 6,172
    07-09-2014, 06:20 PM Go to last post
  13. Trane compressor not coming on

    Started by bwd111, 08-15-2014 02:51 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 84
    • Views: 3,234
    08-29-2014, 11:42 PM Go to last post
  14. Thumbs up 460V 1PH condenser fan motor ????

    Started by AcDOCnTRAINING, 02-07-2008 05:15 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 80
    • Views: 8,349
    09-17-2011, 10:28 PM Go to last post
  15. HIGH SUCTION PRESSURE / LOW HEAD PRESSURE ISSUE

    Started by EdHvacr, 09-02-2014 06:04 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 80
    • Views: 2,156
    09-06-2014, 06:09 PM Go to last post
  16. Diagnosing a Weak Compressor

    Started by BBeerme, 06-08-2014 08:00 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 78
    • Views: 4,326
    08-21-2014, 12:59 AM Go to last post
  17. Question oil pressure problem

    Started by welling service, 11-17-2012 02:57 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 76
    • Views: 7,875
    01-15-2013, 12:13 AM Go to last post
  18. York Heat Exchangers

    Started by coolerik, 11-22-2013 09:35 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 76
    • Views: 3,488
    02-08-2014, 11:25 PM Go to last post
  19. Trane package unit

    Started by caheiman30, 08-15-2012 03:16 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 73
    • Views: 6,233
    08-22-2012, 12:45 AM Go to last post
  20. Nitrogen or No Nitrogen?

    Started by Grayline, 04-18-2013 07:49 AM
    6 Pages
    1 2 3 4 5 6
    • Replies: 73
    • Views: 5,514
    04-25-2013, 09:31 AM Go to last post
  21. Dolphin chemical free water treatment

    Started by colorado dave, 02-22-2005 06:38 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 71
    • Views: 20,093
    08-20-2014, 10:22 PM Go to last post
  22. Johnson Controls

    Started by huckleberryjay, 06-10-2010 10:33 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 70
    • Views: 9,522
    09-14-2011, 09:03 PM Go to last post
  23. Torching evaps

    Started by leaker2, 10-23-2013 09:23 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 70
    • Views: 3,451
    11-14-2013, 03:58 PM Go to last post
  24. compressor black over current box tripping

    Started by raven22, 05-17-2013 07:51 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 69
    • Views: 3,129
    05-24-2013, 06:37 PM Go to last post
  25. Hours to Pm a rooftop.

    Started by mikepinnacle, 08-14-2013 01:22 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 65
    • Views: 5,361
    12-12-2013, 10:08 PM Go to last post
  26. Frown Maybe bypassing compressor

    Started by anders13, 08-08-2014 02:47 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 65
    • Views: 2,685
    08-16-2014, 12:19 AM Go to last post
  27. No one ever replaces sheeves

    Started by marter, 09-13-2014 09:37 AM
    6 Pages
    1 2 3 4 5 6
    • Replies: 65
    • Views: 1,726
    09-18-2014, 06:34 PM Go to last post
  28. Water Treatment Questions Welcome!

    Started by waterworld, 11-13-2010 12:48 PM
    5 Pages
    1 2 3 4 5
    • Replies: 62
    • Views: 9,374
    07-15-2014, 11:57 AM Go to last post
  29. RTU's not cooling the building enough

    Started by abcando, 07-06-2012 12:41 AM
    5 Pages
    1 2 3 4 5
    • Replies: 61
    • Views: 6,026
    07-14-2012, 09:33 PM Go to last post
  30. High superheat with NU22B

    Started by Jbart, 07-06-2013 09:02 PM
    5 Pages
    1 2 3 4 5
    • Replies: 61
    • Views: 3,784
    07-21-2013, 04:56 PM Go to last post
    • Replies: 61
    • Views: 4,483
    03-10-2014, 04:16 AM Go to last post
  31. liebert rep

    Started by energy mech, 02-11-2014 03:27 PM
    5 Pages
    1 2 3 4 5
    • Replies: 61
    • Views: 3,828
    03-26-2014, 09:01 PM Go to last post
  32. RTAA125 low on 22 or ...?

    Started by valdelocc, 04-22-2013 08:12 PM
    5 Pages
    1 2 3 4 5
    • Replies: 60
    • Views: 3,820
    10-23-2013, 08:56 AM Go to last post
  33. Roof Top AC unit not cooling

    Started by Matthonda98, 09-02-2014 01:30 PM
    5 Pages
    1 2 3 4 5
    • Replies: 60
    • Views: 1,786
    09-08-2014, 10:15 PM Go to last post
  34. Rooftop Heat Exchanger Failure Causes???

    Started by andrewd33, 12-07-2011 03:52 PM
    5 Pages
    1 2 3 4 5
    • Replies: 58
    • Views: 4,291
    01-21-2012, 03:01 PM Go to last post
  35. Move to union?

    Started by CFESAmasterEGSR, 07-07-2014 10:49 PM
    5 Pages
    1 2 3 4 5
    • Replies: 58
    • Views: 2,103
    07-27-2014, 01:07 AM Go to last post
  36. Moving compressor to roof

    Started by Capz, 07-24-2013 08:40 PM
    5 Pages
    1 2 3 4 5
    • Replies: 55
    • Views: 3,602
    08-18-2013, 08:18 PM Go to last post
  37. Typical overtime policies?

    Started by mcairrepair, 07-26-2012 10:06 PM
    5 Pages
    1 2 3 4 5
    • Replies: 54
    • Views: 8,801
    11-13-2012, 08:37 AM Go to last post
  38. ISCEON® MO99™ refrigerant ( R-438a )

    Started by freonguy, 08-18-2009 05:15 PM
    5 Pages
    1 2 3 4 5
    • Replies: 53
    • Views: 24,352
    09-20-2012, 11:16 AM Go to last post
  39. First day of a new career

    Started by colortwang, 02-03-2012 10:37 PM
    5 Pages
    1 2 3 4 5
    • Replies: 52
    • Views: 3,508
    02-07-2012, 12:45 AM Go to last post
  40. Question Carrier RTU second stage freezing up

    Started by qwerty hvac, 05-12-2012 09:15 AM
    5 Pages
    1 2 3 4 5
    • Replies: 52
    • Views: 4,490
    05-18-2012, 07:24 PM Go to last post
  41. Ground short ?

    Started by AddMore22, 06-07-2012 09:20 PM
    5 Pages
    1 2 3 4 5
    • Replies: 52
    • Views: 3,202
    06-10-2012, 04:31 PM Go to last post
  42. AAON units RN series

    Started by leonbowen, 10-06-2013 10:54 PM
    5 Pages
    1 2 3 4 5
    • Replies: 52
    • Views: 4,720
    08-03-2014, 02:40 PM Go to last post
  43. 30 ton split R-22 to 410a

    Started by allstar08, 07-08-2011 07:41 PM
    4 Pages
    1 2 3 4
    • Replies: 51
    • Views: 7,012
    09-05-2012, 07:46 AM Go to last post
  44. Txv adjustment help

    Started by Iceman_pdx, 10-20-2013 10:12 AM
    4 Pages
    1 2 3 4
    • Replies: 51
    • Views: 2,662
    11-03-2013, 09:27 PM Go to last post
  45. Trane Voyager rooftop poopie

    Started by WorkHardThenDie, 06-21-2012 02:41 PM
    4 Pages
    1 2 3 4
    • Replies: 50
    • Views: 5,156
    07-05-2012, 04:59 PM Go to last post
  46. Installing A Remote Condensing Unit Indoors????

    Started by RichO, 09-23-2013 05:22 PM
    4 Pages
    1 2 3 4
    • Replies: 50
    • Views: 2,038
    09-25-2013, 08:16 PM Go to last post

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