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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: 5,469
    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: 131,447
    07-28-2013, 09:10 AM Go to last post
  3. 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: 34,016
    08-08-2013, 06:59 PM Go to last post
  4. ISCEON® MO99™ refrigerant ( R-438a )

    Started by freonguy, 08-18-2009 05:15 PM
    5 Pages
    1 2 3 4 5
    • Replies: 53
    • Views: 29,019
    09-20-2012, 11:16 AM 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: 25,311
    08-02-2012, 07:34 PM Go to last post
  6. 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: 23,104
    08-20-2014, 10:22 PM 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: 40
    • Views: 18,012
    08-13-2014, 05:34 PM Go to last post
  8. quiet 230V contactor

    Started by SolarMike, 12-10-2011 02:07 PM
    3 Pages
    1 2 3
    • Replies: 34
    • Views: 14,943
    12-13-2011, 09:42 PM Go to last post
  9. face velocity formula

    Started by oldtimer2, 08-23-2010 04:54 PM
    2 Pages
    1 2
    • Replies: 17
    • Views: 14,456
    05-20-2014, 01:39 AM Go to last post
  10. 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: 14,083
    10-20-2014, 06:02 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: 13,775
    09-15-2013, 10:56 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: 12,608
    12-06-2011, 11:06 PM Go to last post
  13. Diagnosing Faulty TXV

    Started by dixie2005, 07-20-2005 09:22 PM
    • Replies: 9
    • Views: 12,559
    04-26-2013, 07:42 AM Go to last post
  14. Old Modine Make Up Air

    Started by Trevor11, 12-14-2011 12:22 AM
    • Replies: 4
    • Views: 12,505
    12-14-2011, 09:34 PM Go to last post
  15. How much refrigerant can a recovery tank hold?

    Started by bgrich2003, 07-30-2012 10:28 AM
    • Replies: 11
    • Views: 12,438
    08-01-2012, 08:26 AM Go to last post
  16. Water Treatment Questions Welcome!

    Started by waterworld, 11-13-2010 01:48 PM
    5 Pages
    1 2 3 4 5
    • Replies: 63
    • Views: 11,220
    04-16-2015, 07:42 AM Go to last post
  17. 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: 11,202
    06-21-2012, 10:06 PM Go to last post
  18. Johnson Controls

    Started by huckleberryjay, 06-10-2010 10:33 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 70
    • Views: 11,111
    09-14-2011, 09:03 PM Go to last post
  19. refrigerant restriction

    Started by johnnyb, 05-03-2014 10:37 AM
    19 Pages
    1 2 3 4 5 6 ... 19
    • Replies: 240
    • Views: 10,982
    08-02-2014, 09:11 PM Go to last post
  20. Trane Voyager 1, 2, & 3

    Started by Scott10, 12-15-2011 04:07 PM
    • Replies: 8
    • Views: 10,305
    12-24-2011, 12:47 AM Go to last post
  21. Typical overtime policies?

    Started by mcairrepair, 07-26-2012 10:06 PM
    5 Pages
    1 2 3 4 5
    • Replies: 54
    • Views: 10,061
    11-13-2012, 09:37 AM Go to last post
  22. 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: 9,895
    09-17-2011, 10:28 PM Go to last post
    • Replies: 106
    • Views: 9,774
    01-29-2013, 08:00 PM Go to last post
  23. Confused King National Air Systems heaters

    Started by hvaccompowner, 08-01-2007 06:02 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 9,420
    09-18-2013, 05:50 AM Go to last post
  24. Lennox RTU Problem

    Started by mattster72, 12-15-2011 10:04 AM
    2 Pages
    1 2
    • Replies: 24
    • Views: 9,394
    12-24-2011, 03:28 PM Go to last post
  25. Carlyle compressor

    Started by Chris1570, 08-22-2013 08:03 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 97
    • Views: 9,388
    05-11-2014, 03:23 PM Go to last post
  26. 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: 9,341
    01-15-2013, 01:13 AM Go to last post
  27. Plant operator??

    Started by newtradesman, 10-21-2004 04:59 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 96
    • Views: 9,312
    01-21-2013, 06:50 PM Go to last post
  28. anyone know how trane reliatel system works?

    Started by deon1116, 02-02-2007 01:26 AM
    2 Pages
    1 2
    • Replies: 17
    • Views: 9,302
    04-10-2013, 08:41 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: 9,292
    09-28-2013, 02:17 PM Go to last post
  30. Anyone doing Family Dollar or Dollar General service?

    Started by MechTech2013, 06-06-2014 02:04 AM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 94
    • Views: 9,129
    01-20-2015, 10:24 AM Go to last post
  31. Bitzer screw compressor

    Started by moideen, 05-20-2009 02:37 PM
    • Replies: 12
    • Views: 8,907
    09-22-2012, 01:32 PM Go to last post
  32. High suction pressure low to normal head?

    Started by Gonzo2611, 08-28-2012 10:13 PM
    3 Pages
    1 2 3
    • Replies: 34
    • Views: 8,694
    09-16-2012, 03:00 AM Go to last post
  33. Refrigerant Stop Leak

    Started by gmac100, 03-16-2012 09:19 AM
    3 Pages
    1 2 3
    • Replies: 36
    • Views: 8,339
    05-21-2012, 03:37 PM Go to last post
  34. VRF

    Started by acman17, 05-19-2014 08:20 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 86
    • Views: 8,314
    07-09-2014, 06:20 PM Go to last post
    • Replies: 96
    • Views: 8,260
    02-04-2013, 12:14 PM Go to last post
  35. Daikin VRV

    Started by ChaseW, 05-27-2012 10:05 AM
    4 Pages
    1 2 3 4
    • Replies: 49
    • Views: 8,057
    11-13-2013, 07:35 AM Go to last post
  36. 30 ton split R-22 to 410a

    Started by allstar08, 07-08-2011 07:41 PM
    4 Pages
    1 2 3 4
    • Replies: 51
    • Views: 7,980
    09-05-2012, 07:46 AM Go to last post
    • Replies: 176
    • Views: 7,980
    07-25-2014, 04:26 PM Go to last post
  37. YCD Powerburner Issues

    Started by vin lashon, 12-09-2011 09:02 PM
    2 Pages
    1 2
    • Replies: 14
    • Views: 7,962
    04-08-2012, 07:14 PM Go to last post
  38. Using a megger for hvac/r

    Started by akelesis, 08-12-2012 01:26 PM
    3 Pages
    1 2 3
    • Replies: 31
    • Views: 7,932
    09-05-2012, 07:02 AM Go to last post
  39. 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: 45
    • Views: 7,918
    09-20-2012, 11:15 PM Go to last post
  40. Water source heat pump high head pressure

    Started by PolarBearAir, 09-16-2011 09:57 PM
    2 Pages
    1 2
    • Replies: 20
    • Views: 7,862
    11-01-2014, 09:13 AM Go to last post
  41. txv brazing techniques

    Started by mizzouhvac, 06-19-2011 08:56 AM
    3 Pages
    1 2 3
    • Replies: 33
    • Views: 7,787
    08-24-2011, 11:37 PM Go to last post
  42. COMPRESSOR LIFT

    Started by low pressure guy, 07-19-2009 09:08 AM
    4 Pages
    1 2 3 4
    • Replies: 44
    • Views: 7,784
    05-03-2014, 11:49 AM Go to last post
  43. Trane package unit

    Started by caheiman30, 08-15-2012 03:16 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 73
    • Views: 7,751
    08-22-2012, 12:45 AM Go to last post
  44. GROUNDED B PHASE

    Started by VTP99, 01-29-2012 03:43 PM
    4 Pages
    1 2 3 4
    • Replies: 47
    • Views: 7,532
    03-25-2012, 07:32 AM Go to last post
  45. Buensod vav box..

    Started by Air_Head73, 07-06-2007 02:58 PM
    2 Pages
    1 2
    • Replies: 20
    • Views: 7,528
    12-21-2011, 02:31 PM Go to last post
  46. Pleats Vs. Poly Rolls

    Started by MicahWes, 12-09-2011 12:23 AM
    • Replies: 9
    • Views: 7,351
    12-15-2011, 10:19 AM Go to last post
  47. 3 phase ac compressor

    Started by biggi, 04-16-2013 08:34 PM
    3 Pages
    1 2 3
    • Replies: 33
    • Views: 7,239
    04-20-2013, 07:09 AM Go to last post
  48. RTU's not cooling the building enough

    Started by abcando, 07-06-2012 12:41 AM
    5 Pages
    1 2 3 4 5
    • Replies: 61
    • Views: 7,167
    07-14-2012, 09:33 PM Go to last post

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