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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: 9,849
    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: 155,783
    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: 54,504
    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: 44,636
    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: 46
    • Views: 40,229
    08-02-2012, 07:34 PM Go to last post
  6. r-22 with poe oil

    Started by anthonyac1, 03-12-2012 09:48 PM
    4 Pages
    1 2 3 4
    • Replies: 44
    • Views: 36,144
    06-27-2016, 08:13 PM Go to last post
  7. How much refrigerant can a recovery tank hold?

    Started by bgrich2003, 07-30-2012 10:28 AM
    • Replies: 11
    • Views: 34,431
    08-01-2012, 08:26 AM 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: 33,191
    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: 30,991
    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: 26,899
    08-02-2014, 09:11 PM Go to last post
  11. face velocity formula

    Started by oldtimer2, 08-23-2010 04:54 PM
    2 Pages
    1 2
    • Replies: 17
    • Views: 24,385
    05-20-2014, 01:39 AM Go to last post
  12. Oil foaming in Compressor sight glass

    Started by elvis66, 08-16-2011 11:57 AM
    3 Pages
    1 2 3
    • Replies: 32
    • Views: 23,722
    12-06-2011, 11:06 PM 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: 23,377
    10-20-2014, 06:02 PM Go to last post
  14. on call

    Started by northeastbeast, 08-02-2013 07:03 AM
    11 Pages
    1 2 3 4 5 6 ... 11
    • Replies: 134
    • Views: 21,823
    09-15-2013, 10:56 AM 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: 20,078
    09-16-2012, 03:00 AM Go to last post
    • Replies: 176
    • Views: 19,568
    07-25-2014, 04:26 PM Go to last post
  16. VRF

    Started by acman17, 05-19-2014 08:20 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 91
    • Views: 19,542
    05-08-2016, 02:32 PM Go to last post
  17. 3 phase ac compressor

    Started by biggi, 04-16-2013 08:34 PM
    3 Pages
    1 2 3
    • Replies: 36
    • Views: 19,192
    07-23-2016, 10:33 AM 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: 19,138
    11-01-2014, 09:13 AM Go to last post
  19. 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: 18,962
    07-24-2016, 08:11 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: 18,375
    07-14-2015, 09:28 AM Go to last post
  21. quiet 230V contactor

    Started by SolarMike, 12-10-2011 02:07 PM
    3 Pages
    1 2 3
    • Replies: 34
    • Views: 17,402
    12-13-2011, 09:42 PM 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: 17,042
    02-08-2017, 08:20 AM Go to last post
  23. Johnson Controls

    Started by huckleberryjay, 06-10-2010 10:33 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 70
    • Views: 16,972
    09-14-2011, 09:03 PM Go to last post
  24. Water Treatment Questions Welcome!

    Started by waterworld, 11-13-2010 01:48 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 65
    • Views: 16,591
    02-02-2017, 05:25 PM Go to last post
  25. 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: 47
    • Views: 16,541
    10-14-2015, 05:01 PM Go to last post
  26. 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: 16,241
    06-21-2012, 10:06 PM Go to last post
  27. Flame sensor testing

    Started by btglow2894, 11-15-2014 03:19 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 80
    • Views: 16,116
    12-16-2014, 11:17 PM Go to last post
  28. Diagnosing Faulty TXV

    Started by dixie2005, 07-20-2005 09:22 PM
    • Replies: 9
    • Views: 15,960
    04-26-2013, 07:42 AM Go to last post
  29. Carlyle compressor

    Started by Chris1570, 08-22-2013 08:03 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 97
    • Views: 15,358
    05-11-2014, 03:23 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: 15,229
    09-17-2011, 10:28 PM Go to last post
  31. 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: 15,133
    04-14-2015, 10:59 AM Go to last post
  32. Work Pants

    Started by Pascone10, 05-31-2014 03:03 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 72
    • Views: 15,127
    09-11-2016, 12:08 PM Go to last post
  33. 3 phase question

    Started by YatYas, 01-08-2015 07:18 PM
    10 Pages
    1 2 3 4 5 6 ... 10
    • Replies: 117
    • Views: 15,106
    01-15-2015, 04:45 PM Go to last post
  34. 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: 15,053
    01-15-2013, 01:13 AM Go to last post
    • Replies: 106
    • Views: 14,994
    01-29-2013, 08:00 PM Go to last post
  35. 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: 14,914
    09-28-2013, 02:17 PM Go to last post
  36. anyone know how trane reliatel system works?

    Started by deon1116, 02-02-2007 01:26 AM
    2 Pages
    1 2
    • Replies: 17
    • Views: 14,892
    04-10-2013, 08:41 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: 14,342
    06-28-2015, 11:28 AM Go to last post
  38. Typical overtime policies?

    Started by mcairrepair, 07-26-2012 10:06 PM
    5 Pages
    1 2 3 4 5
    • Replies: 54
    • Views: 13,857
    11-13-2012, 09:37 AM Go to last post
  39. Refrigerant Stop Leak

    Started by gmac100, 03-16-2012 09:19 AM
    3 Pages
    1 2 3
    • Replies: 36
    • Views: 13,722
    05-21-2012, 03:37 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: 13,498
    11-13-2013, 07:35 AM Go to last post
  41. 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: 13,333
    11-30-2014, 03:46 AM Go to last post
  42. GROUNDED B PHASE

    Started by VTP99, 01-29-2012 03:43 PM
    4 Pages
    1 2 3 4
    • Replies: 47
    • Views: 13,157
    03-25-2012, 07:32 AM Go to last post
    • Replies: 96
    • Views: 13,117
    02-04-2013, 12:14 PM Go to last post
  43. Lennox RTU Problem

    Started by mattster72, 12-15-2011 10:04 AM
    2 Pages
    1 2
    • Replies: 24
    • Views: 12,975
    12-24-2011, 03:28 PM Go to last post
  44. 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: 12,890
    04-17-2015, 09:28 AM Go to last post
  45. Old Modine Make Up Air

    Started by Trevor11, 12-14-2011 12:22 AM
    • Replies: 4
    • Views: 12,863
    12-14-2011, 09:34 PM Go to last post
  46. Plant operator??

    Started by newtradesman, 10-21-2004 04:59 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 96
    • Views: 12,811
    01-21-2013, 06:50 PM Go to last post
  47. Leak Lock

    Started by hands, 10-09-2012 07:58 PM
    3 Pages
    1 2 3
    • Replies: 26
    • Views: 12,651
    01-22-2015, 08:21 AM Go to last post
  48. Using a megger for hvac/r

    Started by akelesis, 08-12-2012 01:26 PM
    3 Pages
    1 2 3
    • Replies: 31
    • Views: 12,434
    09-05-2012, 07:02 AM Go to last post

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