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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: 10,639
    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: 159,234
    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: 22,518
    07-24-2016, 08:11 PM Go to last post
  4. refrigerant restriction

    Started by johnnyb, 05-03-2014 10:37 AM
    19 Pages
    1 2 3 4 5 6 ... 19
    • Replies: 240
    • Views: 28,812
    08-02-2014, 09:11 PM Go to last post
  5. 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: 36,026
    11-19-2015, 12:10 AM Go to last post
  6. Receiver Subcooling (cont.)

    Started by hvacrmedic, 06-16-2017 10:12 PM
    14 Pages
    1 2 3 4 5 6 ... 14
    • Replies: 180
    • Views: 3,487
    Today, 02:07 PM Go to last post
  7. Finding a vacuum leak

    Started by jimp, 05-23-2017 08:22 PM
    14 Pages
    1 2 3 4 5 6 ... 14
    • Replies: 178
    • Views: 5,295
    06-20-2017, 03:48 PM Go to last post
    • Replies: 176
    • Views: 21,963
    07-25-2014, 04:26 PM Go to last post
  8. Riddle Me This . . . 22/410A

    Started by BBeerme, 03-21-2017 07:19 PM
    14 Pages
    1 2 3 4 5 6 ... 14
    • Replies: 175
    • Views: 6,342
    04-01-2017, 04:33 PM Go to last post
  9. Gordon piatt burners

    Started by bcharlesm30, 02-14-2017 08:38 PM
    13 Pages
    1 2 3 4 5 6 ... 13
    • Replies: 168
    • Views: 6,825
    04-29-2017, 09:32 AM Go to last post
  10. 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: 8,477
    07-14-2016, 10:27 PM Go to last post
  11. on call

    Started by northeastbeast, 08-02-2013 07:03 AM
    11 Pages
    1 2 3 4 5 6 ... 11
    • Replies: 134
    • Views: 23,198
    09-15-2013, 10:56 AM Go to last post
  12. 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: 14,060
    11-30-2014, 03:46 AM Go to last post
  13. 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: 9,738
    02-13-2016, 06:57 PM Go to last post
  14. 3 phase question

    Started by YatYas, 01-08-2015 07:18 PM
    10 Pages
    1 2 3 4 5 6 ... 10
    • Replies: 117
    • Views: 16,527
    01-15-2015, 04:45 PM Go to last post
  15. 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: 24,903
    10-20-2014, 06:02 PM Go to last post
    • Replies: 106
    • Views: 15,729
    01-29-2013, 08:00 PM Go to last post
  16. 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: 20,370
    07-14-2015, 09:28 AM Go to last post
  17. 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: 5,554
    12-16-2016, 03:58 PM Go to last post
  18. 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: 7,408
    07-29-2016, 10:53 AM Go to last post
  19. 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: 16,019
    09-28-2013, 02:17 PM Go to last post
  20. Belt Tightening

    Started by Michael Baldwin, 10-18-2015 08:43 AM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 100
    • Views: 12,392
    10-17-2016, 11:00 PM Go to last post
  21. Carlyle compressor

    Started by Chris1570, 08-22-2013 08:03 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 97
    • Views: 16,272
    05-11-2014, 03:23 PM Go to last post
  22. Plant operator??

    Started by newtradesman, 10-21-2004 04:59 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 96
    • Views: 13,216
    01-21-2013, 06:50 PM Go to last post
    • Replies: 96
    • Views: 13,968
    02-04-2013, 12:14 PM 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: 46,579
    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: 20,642
    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: 9,303
    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: 15,092
    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: 6,609
    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: 15,826
    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: 9,848
    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: 17,431
    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: 11,373
    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: 12,936
    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: 4,684
    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: 8,089
    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: 5,793
    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: 4,078
    02-12-2017, 11:10 PM Go to last post
  37. 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: 16,350
    09-17-2011, 10:28 PM Go to last post
  38. 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: 11,561
    09-06-2014, 06:09 PM Go to last post
  39. Flame sensor testing

    Started by btglow2894, 11-15-2014 03:19 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 80
    • Views: 17,514
    12-16-2014, 11:17 PM Go to last post
  40. Voltage drop

    Started by bsw52876, 09-12-2016 09:44 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 80
    • Views: 4,820
    10-03-2016, 07:24 AM Go to last post
  41. 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: 13,722
    04-17-2015, 09:28 AM Go to last post
  42. Water Treatment Questions Welcome!

    Started by waterworld, 11-13-2010 01:48 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 77
    • Views: 18,052
    06-13-2017, 05:26 PM Go to last post
  43. 2 condensers, one evaporator

    Started by FitterTom, 10-25-2011 02:33 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 77
    • Views: 10,205
    03-13-2016, 09:29 PM Go to last post
  44. 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: 16,151
    01-15-2013, 01:13 AM Go to last post
  45. York Heat Exchangers

    Started by coolerik, 11-22-2013 10:35 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 76
    • Views: 10,239
    02-09-2014, 12:25 AM Go to last post
  46. G5 Appion

    Started by jimp, 05-20-2017 10:25 AM
    6 Pages
    1 2 3 4 5 6
    • Replies: 76
    • Views: 2,351
    06-08-2017, 06:59 PM Go to last post
  47. Megger Readings

    Started by hands, 10-22-2016 01:27 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 74
    • Views: 4,241
    11-06-2016, 09:03 PM 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: 2,346
    05-10-2017, 10:38 PM Go to last post

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