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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: 11,131
    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: 165,022
    07-28-2013, 09:10 AM Go to last post
  3. Carrier will lay off 2100 peaple

    Started by servicefitter, 02-11-2016 10:18 PM
    21 Pages
    1 2 3 4 5 6 ... 21
    • Replies: 260
    • Views: 26,616
    07-24-2016, 08:11 PM Go to last post
  4. How important to you is temperature accuracy on pipe measurements?

    Started by timtanguay, 08-20-2017 01:36 PM
    19 Pages
    1 2 3 4 5 6 ... 19
    • Replies: 244
    • Views: 5,903
    09-06-2017, 09:46 PM Go to last post
  5. refrigerant restriction

    Started by johnnyb, 05-03-2014 10:37 AM
    19 Pages
    1 2 3 4 5 6 ... 19
    • Replies: 240
    • Views: 31,954
    08-02-2014, 09:11 PM Go to last post
  6. Anyone doing Family Dollar or Dollar General service?

    Started by MechTech2013, 06-06-2014 02:04 AM
    15 Pages
    1 2 3 4 5 6 ... 15
    • Replies: 186
    • Views: 39,513
    11-19-2015, 12:10 AM Go to last post
  7. Riddle Me This . . . 22/410A

    Started by BBeerme, 03-21-2017 07:19 PM
    14 Pages
    1 2 3 4 5 6 ... 14
    • Replies: 178
    • Views: 8,752
    09-19-2017, 09:58 PM Go to last post
    • Replies: 176
    • Views: 24,846
    07-25-2014, 04:26 PM Go to last post
  8. Gordon piatt burners

    Started by bcharlesm30, 02-14-2017 08:38 PM
    13 Pages
    1 2 3 4 5 6 ... 13
    • Replies: 168
    • Views: 8,082
    04-29-2017, 09:32 AM Go to last post
  9. R-410 to R-134 conversion

    Started by Poodle Head Mikey, 06-25-2016 05:32 PM
    12 Pages
    1 2 3 4 5 6 ... 12
    • Replies: 153
    • Views: 9,558
    07-14-2016, 10:27 PM Go to last post
  10. on call

    Started by northeastbeast, 08-02-2013 07:03 AM
    11 Pages
    1 2 3 4 5 6 ... 11
    • Replies: 134
    • Views: 25,503
    09-15-2013, 10:56 AM Go to last post
  11. 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: 15,254
    11-30-2014, 03:46 AM Go to last post
  12. Is Low Pressure Steam still a thing?

    Started by DDCSD, 11-06-2015 12:02 AM
    10 Pages
    1 2 3 4 5 6 ... 10
    • Replies: 119
    • Views: 11,682
    02-13-2016, 06:57 PM Go to last post
  13. 3 phase question

    Started by YatYas, 01-08-2015 07:18 PM
    10 Pages
    1 2 3 4 5 6 ... 10
    • Replies: 117
    • Views: 18,150
    01-15-2015, 04:45 PM Go to last post
  14. 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: 27,324
    10-20-2014, 06:02 PM Go to last post
    • Replies: 106
    • Views: 16,532
    01-29-2013, 08:00 PM Go to last post
  15. Diagnosing a Weak Compressor

    Started by BBeerme, 06-08-2014 08:00 PM
    9 Pages
    1 2 3 4 5 6 ... 9
    • Replies: 105
    • Views: 23,640
    09-25-2017, 01:52 PM Go to last post
  16. 3 ton R22 Herm Comp still pressures.

    Started by Chris4u13, 10-17-2016 07:03 PM
    9 Pages
    1 2 3 4 5 6 ... 9
    • Replies: 104
    • Views: 6,596
    12-16-2016, 03:58 PM Go to last post
  17. someone have an explaination for this?

    Started by Service93, 06-30-2016 10:23 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 102
    • Views: 8,247
    07-29-2016, 10:53 AM Go to last post
  18. 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: 17,995
    09-28-2013, 02:17 PM Go to last post
  19. Belt Tightening

    Started by Michael Baldwin, 10-18-2015 08:43 AM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 100
    • Views: 14,796
    10-17-2016, 11:00 PM Go to last post
  20. Carlyle compressor

    Started by Chris1570, 08-22-2013 08:03 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 97
    • Views: 17,654
    05-11-2014, 03:23 PM Go to last post
  21. Plant operator??

    Started by newtradesman, 10-21-2004 04:59 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 96
    • Views: 13,895
    01-21-2013, 06:50 PM Go to last post
    • Replies: 96
    • Views: 14,807
    02-04-2013, 12:14 PM Go to last post
  22. Don't need no stinkin' contactor

    Started by BBeerme, 09-13-2017 10:33 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 93
    • Views: 3,069
    09-22-2017, 11:27 AM Go to last post
  23. 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: 48,591
    08-08-2013, 06:59 PM Go to last post
  24. VRF

    Started by acman17, 05-19-2014 08:20 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 91
    • Views: 22,399
    05-08-2016, 02:32 PM Go to last post
  25. A Fun Question . . .

    Started by BBeerme, 06-27-2014 10:01 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 90
    • Views: 9,949
    07-04-2014, 01:38 AM Go to last post
  26. 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: 16,339
    06-28-2015, 11:28 AM Go to last post
  27. Regret

    Started by teammix, 09-21-2016 11:13 AM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 90
    • Views: 7,613
    10-28-2016, 08:25 AM Go to last post
  28. 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: 16,886
    04-14-2015, 10:59 AM Go to last post
  29. Help! Uneven amp draw on fan motor.

    Started by DanDaMan370, 08-28-2015 12:29 AM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 89
    • Views: 11,142
    08-30-2015, 06:08 PM Go to last post
  30. 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: 19,131
    06-21-2012, 10:06 PM Go to last post
  31. 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: 12,671
    08-29-2014, 11:42 PM Go to last post
  32. R22 replacements

    Started by rhumbard, 09-19-2014 09:46 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 84
    • Views: 14,471
    10-03-2014, 05:56 AM Go to last post
  33. Can we use 2 legs of three phase power for a heat pump?

    Started by Adamatim1, 01-21-2017 06:30 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 82
    • Views: 6,573
    02-01-2017, 12:12 AM Go to last post
  34. Evacuation process?

    Started by Junior1983, 06-26-2015 08:47 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 81
    • Views: 9,136
    07-08-2015, 12:26 AM Go to last post
  35. 25 ton carrier compressor question

    Started by Cimerian, 08-02-2016 08:28 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 81
    • Views: 6,894
    08-26-2016, 10:39 PM Go to last post
  36. High sub-cooling, high super heat but flashing sight glass

    Started by hvacmo, 02-03-2017 11:19 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 81
    • Views: 5,019
    02-12-2017, 11:10 PM Go to last post
  37. ac problem

    Started by zshoemater, 07-13-2017 05:52 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 81
    • Views: 4,190
    07-25-2017, 11:01 AM Go to last post
  38. 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: 17,808
    09-17-2011, 10:28 PM Go to last post
  39. 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: 13,628
    09-06-2014, 06:09 PM Go to last post
  40. Flame sensor testing

    Started by btglow2894, 11-15-2014 03:19 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 80
    • Views: 19,119
    12-16-2014, 11:17 PM Go to last post
  41. Voltage drop

    Started by bsw52876, 09-12-2016 09:44 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 80
    • Views: 5,857
    10-03-2016, 07:24 AM Go to last post
  42. 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: 14,937
    04-17-2015, 09:28 AM Go to last post
  43. The Double Flare

    Started by BBeerme, 04-21-2016 09:22 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 78
    • Views: 10,171
    07-08-2017, 11:36 PM Go to last post
  44. Water Treatment Questions Welcome!

    Started by waterworld, 11-13-2010 01:48 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 77
    • Views: 19,166
    06-13-2017, 05:26 PM Go to last post
  45. 2 condensers, one evaporator

    Started by FitterTom, 10-25-2011 02:33 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 77
    • Views: 11,510
    03-13-2016, 09:29 PM Go to last post
  46. 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: 17,348
    01-15-2013, 01:13 AM Go to last post
  47. York Heat Exchangers

    Started by coolerik, 11-22-2013 10:35 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 76
    • Views: 11,269
    02-09-2014, 12:25 AM Go to last post
  48. Big 1ph motor

    Started by skwoodwiva2, 05-09-2017 01:02 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 74
    • Views: 3,172
    05-10-2017, 10:38 PM Go to last post

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