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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: 11,296
    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: 167,274
    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: 75,051
    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: 49,205
    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: 48,751
    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: 47,538
    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: 43,672
    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: 40,999
    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: 33,979
    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: 33,384
    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: 30,122
    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: 29,584
    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: 28,421
    10-20-2014, 06:02 PM Go to last post
  14. 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: 28,372
    07-24-2016, 08:11 PM Go to last post
  15. 3 phase ac compressor

    Started by biggi, 04-16-2013 08:34 PM
    4 Pages
    1 2 3 4
    • Replies: 39
    • Views: 28,044
    04-21-2017, 04:05 PM Go to last post
  16. High suction pressure low to normal head?

    Started by Gonzo2611, 08-28-2012 10:13 PM
    3 Pages
    1 2 3
    • Replies: 34
    • Views: 26,755
    09-16-2012, 03:00 AM Go to last post
  17. on call

    Started by northeastbeast, 08-02-2013 07:03 AM
    11 Pages
    1 2 3 4 5 6 ... 11
    • Replies: 134
    • Views: 26,562
    09-15-2013, 10:56 AM Go to last post
    • Replies: 176
    • Views: 25,900
    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: 25,184
    11-01-2014, 09:13 AM Go to last post
  19. 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: 24,721
    09-25-2017, 01:52 PM Go to last post
  20. 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: 23,259
    03-01-2017, 07:38 AM Go to last post
  21. VRF

    Started by acman17, 05-19-2014 08:20 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 91
    • Views: 23,075
    05-08-2016, 02:32 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: 20,590
    02-08-2017, 08:20 AM Go to last post
  23. Flame sensor testing

    Started by btglow2894, 11-15-2014 03:19 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 80
    • Views: 20,447
    12-16-2014, 11:17 PM Go to last post
  24. 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: 19,921
    06-21-2012, 10:06 PM Go to last post
  25. Water Treatment Questions Welcome!

    Started by waterworld, 11-13-2010 01:48 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 77
    • Views: 19,566
    06-13-2017, 05:26 PM Go to last post
  26. Johnson Controls

    Started by huckleberryjay, 06-10-2010 10:33 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 70
    • Views: 19,554
    09-14-2011, 09:03 PM Go to last post
  27. Vacuum below 500 microns

    Started by Hvac2014, 06-09-2014 09:14 AM
    3 Pages
    1 2 3
    • Replies: 29
    • Views: 19,037
    07-02-2014, 12:34 PM Go to last post
  28. 3 phase question

    Started by YatYas, 01-08-2015 07:18 PM
    10 Pages
    1 2 3 4 5 6 ... 10
    • Replies: 117
    • Views: 18,937
    01-15-2015, 04:45 PM Go to last post
  29. 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: 18,828
    09-28-2013, 02:17 PM Go to last post
  30. quiet 230V contactor

    Started by SolarMike, 12-10-2011 02:07 PM
    3 Pages
    1 2 3
    • Replies: 34
    • Views: 18,482
    12-13-2011, 09:42 PM Go to last post
  31. 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: 18,453
    09-17-2011, 10:28 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: 18,299
    05-11-2014, 03:23 PM Go to last post
  33. Work Pants

    Started by Pascone10, 05-31-2014 03:03 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 72
    • Views: 18,195
    09-11-2016, 12:08 PM Go to last post
  34. Bypassing Hi/Low pressure cut offs

    Started by hurtinhvac, 03-17-2012 02:19 PM
    2 Pages
    1 2
    • Replies: 18
    • Views: 18,132
    03-18-2012, 02:17 PM Go to last post
  35. 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: 17,889
    01-15-2013, 01:13 AM 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: 17,838
    04-10-2013, 08:41 PM Go to last post
  37. Diagnosing Faulty TXV

    Started by dixie2005, 07-20-2005 09:22 PM
    • Replies: 9
    • Views: 17,668
    04-26-2013, 07:42 AM Go to last post
  38. 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: 17,488
    04-14-2015, 10:59 AM Go to last post
  39. Best Way to thaw frozen evap coil

    Started by MPasley, 09-06-2013 10:02 PM
    2 Pages
    1 2
    • Replies: 14
    • Views: 17,386
    09-20-2013, 07:25 PM Go to last post
  40. 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: 16,938
    06-28-2015, 11:28 AM Go to last post
    • Replies: 106
    • Views: 16,847
    01-29-2013, 08:00 PM Go to last post
  41. Refrigerant Stop Leak

    Started by gmac100, 03-16-2012 09:19 AM
    3 Pages
    1 2 3
    • Replies: 36
    • Views: 16,822
    05-21-2012, 03:37 PM Go to last post
  42. Bluon r-G8 Refrigerant....

    Started by ems4ty, 10-17-2012 10:55 PM
    5 Pages
    1 2 3 4 5
    • Replies: 59
    • Views: 16,750
    10-12-2016, 02:28 PM 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: 16,672
    03-25-2012, 07:32 AM Go to last post
  44. Daikin VRV

    Started by ChaseW, 05-27-2012 10:05 AM
    4 Pages
    1 2 3 4
    • Replies: 49
    • Views: 16,520
    11-13-2013, 07:35 AM Go to last post
  45. Leak Lock

    Started by hands, 10-09-2012 07:58 PM
    3 Pages
    1 2 3
    • Replies: 26
    • Views: 16,333
    01-22-2015, 08:21 AM Go to last post
  46. Typical overtime policies?

    Started by mcairrepair, 07-26-2012 10:06 PM
    5 Pages
    1 2 3 4 5
    • Replies: 54
    • Views: 16,290
    11-13-2012, 09:37 AM Go to last post
  47. R290 VS R22

    Started by Mohammed Nofal, 03-30-2013 08:59 AM
    2 Pages
    1 2
    • Replies: 25
    • Views: 16,232
    07-23-2015, 09:21 AM Go to last post
  48. TRANE Mini split (Error code 6) Help!

    Started by Junior1983, 07-04-2015 12:26 AM
    • Replies: 5
    • Views: 16,122
    07-06-2015, 11:13 PM Go to last post
  49. Frown R22 Replacement

    Started by Abrnth3, 03-15-2013 01:03 PM
    2 Pages
    1 2
    • Replies: 19
    • Views: 15,913
    06-23-2013, 02:31 PM Go to last post

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