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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 Threads

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

    Started by Dad, 08-10-2011 04:34 PM
    • Replies: 0
    • Views: 6,316
    08-10-2011, 04:34 PM Go to last post
  1. Normal Thread Normal Threads

  2. cooling a small server room

    Started by serverroomcooling, 11-16-2004 12:04 PM
    99 Pages
    1 2 3 4 5 6 ... 99
    • Replies: 1,275
    • Views: 138,151
    07-28-2013, 09:10 AM Go to last post
  3. refrigerant restriction

    Started by johnnyb, 05-03-2014 10:37 AM
    19 Pages
    1 2 3 4 5 6 ... 19
    • Replies: 240
    • Views: 13,997
    08-02-2014, 09:11 PM Go to last post
    • Replies: 176
    • Views: 9,850
    07-25-2014, 04:26 PM Go to last post
  4. on call

    Started by northeastbeast, 08-02-2013 07:03 AM
    11 Pages
    1 2 3 4 5 6 ... 11
    • Replies: 134
    • Views: 15,678
    09-15-2013, 10:56 AM Go to last post
  5. Confused I NEED SOME HELP YCD180 gas fired LOW HEAT ON A CHURCH

    Started by pandatimer, 11-21-2014 06:50 PM
    10 Pages
    1 2 3 4 5 6 ... 10
    • Replies: 119
    • Views: 6,308
    11-30-2014, 03:46 AM Go to last post
  6. 3 phase question

    Started by YatYas, 01-08-2015 07:18 PM
    10 Pages
    1 2 3 4 5 6 ... 10
    • Replies: 117
    • Views: 5,719
    01-15-2015, 04:45 PM Go to last post
  7. CO2 Purge for brazing?

    Started by dprimrose, 08-18-2009 10:19 PM
    9 Pages
    1 2 3 4 5 6 ... 9
    • Replies: 109
    • Views: 16,083
    10-20-2014, 06:02 PM Go to last post
    • Replies: 106
    • Views: 10,977
    01-29-2013, 08:00 PM Go to last post
  8. Diagnosing a Weak Compressor

    Started by BBeerme, 06-08-2014 08:00 PM
    9 Pages
    1 2 3 4 5 6 ... 9
    • Replies: 104
    • Views: 9,870
    07-14-2015, 09:28 AM Go to last post
  9. 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: 10,777
    09-28-2013, 02:17 PM Go to last post
  10. Carlyle compressor

    Started by Chris1570, 08-22-2013 08:03 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 97
    • Views: 10,766
    05-11-2014, 03:23 PM Go to last post
  11. Plant operator??

    Started by newtradesman, 10-21-2004 04:59 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 96
    • Views: 10,192
    01-21-2013, 06:50 PM Go to last post
    • Replies: 96
    • Views: 9,389
    02-04-2013, 12:14 PM Go to last post
  12. 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: 94
    • Views: 10,888
    01-20-2015, 10:24 AM Go to last post
  13. 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: 36,037
    08-08-2013, 06:59 PM Go to last post
  14. A Fun Question . . .

    Started by BBeerme, 06-27-2014 10:01 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 90
    • Views: 5,337
    07-04-2014, 01:38 AM Go to last post
  15. Compressor not starting.

    Started by Rick Dreyer, 04-29-2015 01:02 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 90
    • Views: 6,567
    06-28-2015, 11:28 AM Go to last post
  16. So, would you fire me?

    Started by Turnertech41, 03-10-2015 05:23 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 89
    • Views: 7,092
    04-14-2015, 10:59 AM Go to last post
  17. 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: 12,143
    06-21-2012, 10:06 PM Go to last post
  18. VRF

    Started by acman17, 05-19-2014 08:20 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 86
    • Views: 9,909
    07-09-2014, 06:20 PM Go to last post
  19. 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: 5,703
    08-29-2014, 11:42 PM Go to last post
  20. R22 replacements

    Started by rhumbard, 09-19-2014 09:46 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 84
    • Views: 5,892
    10-03-2014, 05:56 AM Go to last post
  21. Evacuation process?

    Started by Junior1983, 06-26-2015 08:47 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 81
    • Views: 2,977
    07-08-2015, 12:26 AM Go to last post
  22. Thumbs up 460V 1PH condenser fan motor ????

    Started by AcDOCnTRAINING, 02-07-2008 06:15 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 80
    • Views: 10,909
    09-17-2011, 10:28 PM Go to last post
  23. 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: 5,157
    09-06-2014, 06:09 PM Go to last post
  24. Flame sensor testing

    Started by btglow2894, 11-15-2014 03:19 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 80
    • Views: 7,239
    12-16-2014, 11:17 PM Go to last post
  25. Brazing copper to brass

    Started by OBogue, 07-28-2014 05:16 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 79
    • Views: 7,382
    04-17-2015, 09:28 AM Go to last post
  26. Question oil pressure problem

    Started by welling service, 11-17-2012 03:57 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 76
    • Views: 10,381
    01-15-2013, 01:13 AM Go to last post
  27. York Heat Exchangers

    Started by coolerik, 11-22-2013 10:35 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 76
    • Views: 5,546
    02-09-2014, 12:25 AM Go to last post
  28. Trane package unit

    Started by caheiman30, 08-15-2012 03:16 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 73
    • Views: 8,644
    08-22-2012, 12:45 AM Go to last post
  29. Nitrogen or No Nitrogen?

    Started by Grayline, 04-18-2013 07:49 AM
    6 Pages
    1 2 3 4 5 6
    • Replies: 73
    • Views: 7,649
    04-25-2013, 09:31 AM Go to last post
  30. Dolphin chemical free water treatment

    Started by colorado dave, 02-22-2005 07:38 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 71
    • Views: 24,309
    08-20-2014, 10:22 PM Go to last post
  31. A hat tip to rooftop guys.

    Started by Glennhvac, 01-02-2015 11:37 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 71
    • Views: 5,053
    01-11-2015, 11:57 PM Go to last post
  32. How many Amps max on a 2 pole contactir 30amp FLA

    Started by Carlos_me, 01-13-2015 05:47 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 71
    • Views: 4,111
    02-12-2015, 07:36 PM Go to last post
  33. Johnson Controls

    Started by huckleberryjay, 06-10-2010 10:33 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 70
    • Views: 12,195
    09-14-2011, 09:03 PM Go to last post
  34. Torching evaps

    Started by leaker2, 10-23-2013 09:23 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 70
    • Views: 5,215
    11-14-2013, 04:58 PM Go to last post
  35. 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: 4,713
    05-24-2013, 06:37 PM Go to last post
  36. No one ever replaces sheeves

    Started by marter, 09-13-2014 09:37 AM
    6 Pages
    1 2 3 4 5 6
    • Replies: 69
    • Views: 4,686
    10-02-2014, 07:19 PM Go to last post
  37. 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: 7,033
    12-12-2013, 11:08 PM Go to last post
  38. Frown Maybe bypassing compressor

    Started by anders13, 08-08-2014 02:47 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 65
    • Views: 4,534
    08-16-2014, 12:19 AM Go to last post
  39. Holiday Pay

    Started by BBeerme, 12-20-2014 02:23 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 65
    • Views: 4,960
    01-31-2015, 08:09 PM Go to last post
  40. This is why Preventive Maintenance is a waste of money.

    Started by Mike19, 08-21-2014 12:16 AM
    5 Pages
    1 2 3 4 5
    • Replies: 64
    • Views: 6,844
    10-15-2014, 10:52 PM Go to last post
  41. True GDM 49F

    Started by tootiredtoargue, 11-30-2014 06:33 PM
    5 Pages
    1 2 3 4 5
    • Replies: 64
    • Views: 3,615
    12-06-2014, 05:00 PM Go to last post
  42. Water Treatment Questions Welcome!

    Started by waterworld, 11-13-2010 01:48 PM
    5 Pages
    1 2 3 4 5
    • Replies: 63
    • Views: 12,845
    04-16-2015, 07:42 AM Go to last post
  43. 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: 8,080
    07-14-2012, 09:33 PM Go to last post
  44. High superheat with NU22B

    Started by Jbart, 07-06-2013 09:02 PM
    5 Pages
    1 2 3 4 5
    • Replies: 61
    • Views: 5,355
    07-21-2013, 04:56 PM Go to last post
    • Replies: 61
    • Views: 6,441
    03-10-2014, 04:16 AM Go to last post
  45. liebert rep

    Started by energy mech, 02-11-2014 04:27 PM
    5 Pages
    1 2 3 4 5
    • Replies: 61
    • Views: 6,760
    03-26-2014, 09:01 PM Go to last post
  46. RTAA125 low on 22 or ...?

    Started by valdelocc, 04-22-2013 08:12 PM
    5 Pages
    1 2 3 4 5
    • Replies: 60
    • Views: 5,552
    10-23-2013, 08:56 AM Go to last post
  47. 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: 3,624
    09-08-2014, 10:15 PM Go to last post

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