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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: 10,754
    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: 160,468
    07-28-2013, 09:10 AM Go to last post
  3. ISCEON® MO99™ refrigerant ( R-438a )

    Started by freonguy, 08-18-2009 05:15 PM
    5 Pages
    1 2 3 4 5
    • Replies: 53
    • Views: 66,894
    09-20-2012, 11:16 AM Go to last post
  4. 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: 47,043
    08-08-2013, 06:59 PM Go to last post
  5. Best Recovery Machines

    Started by softtail, 01-01-2007 02:00 PM
    4 Pages
    1 2 3 4
    • Replies: 47
    • Views: 45,079
    06-20-2017, 10:17 AM Go to last post
  6. How much refrigerant can a recovery tank hold?

    Started by bgrich2003, 07-30-2012 10:28 AM
    • Replies: 11
    • Views: 41,943
    08-01-2012, 08:26 AM Go to last post
  7. r-22 with poe oil

    Started by anthonyac1, 03-12-2012 09:48 PM
    4 Pages
    1 2 3 4
    • Replies: 44
    • Views: 40,543
    06-27-2016, 08:13 PM Go to last post
  8. 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: 36,751
    11-19-2015, 12:10 AM Go to last post
  9. 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: 32,131
    08-20-2014, 10:22 PM Go to last post
  10. refrigerant restriction

    Started by johnnyb, 05-03-2014 10:37 AM
    19 Pages
    1 2 3 4 5 6 ... 19
    • Replies: 240
    • Views: 29,451
    08-02-2014, 09:11 PM Go to last post
  11. Oil foaming in Compressor sight glass

    Started by elvis66, 08-16-2011 11:57 AM
    3 Pages
    1 2 3
    • Replies: 32
    • Views: 27,278
    12-06-2011, 11:06 PM Go to last post
  12. face velocity formula

    Started by oldtimer2, 08-23-2010 04:54 PM
    2 Pages
    1 2
    • Replies: 17
    • Views: 27,203
    05-20-2014, 01:39 AM Go to last post
  13. 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: 25,402
    10-20-2014, 06:02 PM Go to last post
  14. 3 phase ac compressor

    Started by biggi, 04-16-2013 08:34 PM
    4 Pages
    1 2 3 4
    • Replies: 39
    • Views: 24,251
    04-21-2017, 04:05 PM Go to last post
  15. High suction pressure low to normal head?

    Started by Gonzo2611, 08-28-2012 10:13 PM
    3 Pages
    1 2 3
    • Replies: 34
    • Views: 23,903
    09-16-2012, 03:00 AM Go to last post
  16. on call

    Started by northeastbeast, 08-02-2013 07:03 AM
    11 Pages
    1 2 3 4 5 6 ... 11
    • Replies: 134
    • Views: 23,688
    09-15-2013, 10:56 AM Go to last post
  17. 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: 23,392
    07-24-2016, 08:11 PM Go to last post
    • Replies: 176
    • Views: 22,589
    07-25-2014, 04:26 PM Go to last post
  18. Water source heat pump high head pressure

    Started by PolarBearAir, 09-16-2011 09:57 PM
    2 Pages
    1 2
    • Replies: 20
    • Views: 22,207
    11-01-2014, 09:13 AM Go to last post
  19. VRF

    Started by acman17, 05-19-2014 08:20 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 91
    • Views: 21,020
    05-08-2016, 02:32 PM Go to last post
  20. 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: 20,930
    07-14-2015, 09:28 AM Go to last post
  21. Loss of flow alarms on new trane chiller!?!?

    Started by Wes G., 08-23-2012 11:23 PM
    4 Pages
    1 2 3 4
    • Replies: 49
    • Views: 19,968
    03-01-2017, 07:38 AM Go to last post
  22. txv brazing techniques

    Started by mizzouhvac, 06-19-2011 08:56 AM
    5 Pages
    1 2 3 4 5
    • Replies: 53
    • Views: 19,089
    02-08-2017, 08:20 AM Go to last post
  23. Water Treatment Questions Welcome!

    Started by waterworld, 11-13-2010 01:48 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 77
    • Views: 18,246
    06-13-2017, 05:26 PM Go to last post
  24. Johnson Controls

    Started by huckleberryjay, 06-10-2010 10:33 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 70
    • Views: 18,030
    09-14-2011, 09:03 PM Go to last post
  25. quiet 230V contactor

    Started by SolarMike, 12-10-2011 02:07 PM
    3 Pages
    1 2 3
    • Replies: 34
    • Views: 17,966
    12-13-2011, 09:42 PM Go to last post
  26. Flame sensor testing

    Started by btglow2894, 11-15-2014 03:19 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 80
    • Views: 17,803
    12-16-2014, 11:17 PM Go to last post
  27. 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: 17,802
    06-21-2012, 10:06 PM Go to last post
  28. Diagnosing Faulty TXV

    Started by dixie2005, 07-20-2005 09:22 PM
    • Replies: 9
    • Views: 17,050
    04-26-2013, 07:42 AM Go to last post
  29. 3 phase question

    Started by YatYas, 01-08-2015 07:18 PM
    10 Pages
    1 2 3 4 5 6 ... 10
    • Replies: 117
    • Views: 16,861
    01-15-2015, 04:45 PM Go to last post
  30. 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: 16,694
    09-17-2011, 10:28 PM Go to last post
  31. Work Pants

    Started by Pascone10, 05-31-2014 03:03 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 72
    • Views: 16,627
    09-11-2016, 12:08 PM Go to last post
  32. Carlyle compressor

    Started by Chris1570, 08-22-2013 08:03 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 97
    • Views: 16,561
    05-11-2014, 03:23 PM Go to last post
  33. 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: 16,455
    01-15-2013, 01:13 AM Go to last post
  34. 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: 16,391
    09-28-2013, 02:17 PM Go to last post
  35. anyone know how trane reliatel system works?

    Started by deon1116, 02-02-2007 01:26 AM
    2 Pages
    1 2
    • Replies: 17
    • Views: 16,277
    04-10-2013, 08:41 PM Go to last post
  36. 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: 16,019
    04-14-2015, 10:59 AM Go to last post
    • Replies: 106
    • Views: 15,910
    01-29-2013, 08:00 PM Go to last post
  37. 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: 15,353
    06-28-2015, 11:28 AM Go to last post
  38. Refrigerant Stop Leak

    Started by gmac100, 03-16-2012 09:19 AM
    3 Pages
    1 2 3
    • Replies: 36
    • Views: 15,322
    05-21-2012, 03:37 PM Go to last post
  39. Bypassing Hi/Low pressure cut offs

    Started by hurtinhvac, 03-17-2012 02:19 PM
    2 Pages
    1 2
    • Replies: 18
    • Views: 15,018
    03-18-2012, 02:17 PM Go to last post
  40. Daikin VRV

    Started by ChaseW, 05-27-2012 10:05 AM
    4 Pages
    1 2 3 4
    • Replies: 49
    • Views: 14,878
    11-13-2013, 07:35 AM Go to last post
  41. Best Way to thaw frozen evap coil

    Started by MPasley, 09-06-2013 10:02 PM
    2 Pages
    1 2
    • Replies: 14
    • Views: 14,844
    09-20-2013, 07:25 PM Go to last post
  42. Typical overtime policies?

    Started by mcairrepair, 07-26-2012 10:06 PM
    5 Pages
    1 2 3 4 5
    • Replies: 54
    • Views: 14,839
    11-13-2012, 09:37 AM Go to last post
  43. GROUNDED B PHASE

    Started by VTP99, 01-29-2012 03:43 PM
    4 Pages
    1 2 3 4
    • Replies: 47
    • Views: 14,710
    03-25-2012, 07:32 AM Go to last post
  44. Leak Lock

    Started by hands, 10-09-2012 07:58 PM
    3 Pages
    1 2 3
    • Replies: 26
    • Views: 14,552
    01-22-2015, 08:21 AM Go to last post
  45. 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: 14,295
    11-30-2014, 03:46 AM Go to last post
  46. Vacuum below 500 microns

    Started by Hvac2014, 06-09-2014 09:14 AM
    3 Pages
    1 2 3
    • Replies: 29
    • Views: 14,262
    07-02-2014, 12:34 PM Go to last post
  47. Bluon r-G8 Refrigerant....

    Started by ems4ty, 10-17-2012 10:55 PM
    5 Pages
    1 2 3 4 5
    • Replies: 59
    • Views: 14,261
    10-12-2016, 02:28 PM Go to last post
    • Replies: 96
    • Views: 14,173
    02-04-2013, 12:14 PM Go to last post
  48. 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: 14,005
    04-17-2015, 09:28 AM Go to last post

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