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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: 5,840
    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: 134,773
    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: 34,893
    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: 30,495
    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: 26,393
    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: 23,683
    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: 19,306
    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: 15,103
    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: 14,958
    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: 14,954
    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: 14,532
    09-15-2013, 10:56 AM Go to last post
  12. How much refrigerant can a recovery tank hold?

    Started by bgrich2003, 07-30-2012 10:28 AM
    • Replies: 11
    • Views: 13,712
    08-01-2012, 08:26 AM Go to last post
  13. Oil foaming in Compressor sight glass

    Started by elvis66, 08-16-2011 11:57 AM
    3 Pages
    1 2 3
    • Replies: 32
    • Views: 13,331
    12-06-2011, 11:06 PM Go to last post
  14. Diagnosing Faulty TXV

    Started by dixie2005, 07-20-2005 09:22 PM
    • Replies: 9
    • Views: 12,880
    04-26-2013, 07:42 AM Go to last post
  15. Old Modine Make Up Air

    Started by Trevor11, 12-14-2011 12:22 AM
    • Replies: 4
    • Views: 12,561
    12-14-2011, 09:34 PM Go to last post
  16. refrigerant restriction

    Started by johnnyb, 05-03-2014 10:37 AM
    19 Pages
    1 2 3 4 5 6 ... 19
    • Replies: 240
    • Views: 12,051
    08-02-2014, 09:11 PM Go to last post
  17. Water Treatment Questions Welcome!

    Started by waterworld, 11-13-2010 01:48 PM
    5 Pages
    1 2 3 4 5
    • Replies: 63
    • Views: 11,965
    04-16-2015, 07:42 AM Go to last post
  18. 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: 11,671
    06-21-2012, 10:06 PM Go to last post
  19. Johnson Controls

    Started by huckleberryjay, 06-10-2010 10:33 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 70
    • Views: 11,612
    09-14-2011, 09:03 PM Go to last post
  20. Typical overtime policies?

    Started by mcairrepair, 07-26-2012 10:06 PM
    5 Pages
    1 2 3 4 5
    • Replies: 54
    • Views: 10,495
    11-13-2012, 09:37 AM Go to last post
    • Replies: 106
    • Views: 10,441
    01-29-2013, 08:00 PM Go to last post
  21. Trane Voyager 1, 2, & 3

    Started by Scott10, 12-15-2011 04:07 PM
    • Replies: 8
    • Views: 10,395
    12-24-2011, 12:47 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: 10,357
    09-17-2011, 10:28 PM Go to last post
  23. 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: 9,954
    01-20-2015, 10:24 AM Go to last post
  24. Carlyle compressor

    Started by Chris1570, 08-22-2013 08:03 PM
    8 Pages
    1 2 3 4 5 6 ... 8
    • Replies: 97
    • Views: 9,950
    05-11-2014, 03:23 PM Go to last post
  25. 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: 9,910
    09-28-2013, 02:17 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: 9,856
    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: 9,823
    01-21-2013, 06:50 PM Go to last post
  28. Lennox RTU Problem

    Started by mattster72, 12-15-2011 10:04 AM
    2 Pages
    1 2
    • Replies: 24
    • Views: 9,655
    12-24-2011, 03:28 PM Go to last post
  29. anyone know how trane reliatel system works?

    Started by deon1116, 02-02-2007 01:26 AM
    2 Pages
    1 2
    • Replies: 17
    • Views: 9,638
    04-10-2013, 08:41 PM Go to last post
  30. Confused King National Air Systems heaters

    Started by hvaccompowner, 08-01-2007 06:02 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 9,559
    09-18-2013, 05:50 AM Go to last post
  31. High suction pressure low to normal head?

    Started by Gonzo2611, 08-28-2012 10:13 PM
    3 Pages
    1 2 3
    • Replies: 34
    • Views: 9,457
    09-16-2012, 03:00 AM Go to last post
  32. Bitzer screw compressor

    Started by moideen, 05-20-2009 02:37 PM
    • Replies: 12
    • Views: 9,061
    09-22-2012, 01:32 PM Go to last post
  33. VRF

    Started by acman17, 05-19-2014 08:20 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 86
    • Views: 8,958
    07-09-2014, 06:20 PM Go to last post
    • Replies: 96
    • Views: 8,930
    02-04-2013, 12:14 PM Go to last post
    • Replies: 176
    • Views: 8,782
    07-25-2014, 04:26 PM Go to last post
  34. Refrigerant Stop Leak

    Started by gmac100, 03-16-2012 09:19 AM
    3 Pages
    1 2 3
    • Replies: 36
    • Views: 8,766
    05-21-2012, 03:37 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: 8,503
    11-13-2013, 07:35 AM Go to last post
  36. Water source heat pump high head pressure

    Started by PolarBearAir, 09-16-2011 09:57 PM
    2 Pages
    1 2
    • Replies: 20
    • Views: 8,489
    11-01-2014, 09:13 AM Go to last post
  37. 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: 8,337
    09-20-2012, 11:15 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: 8,258
    09-05-2012, 07:02 AM Go to last post
  39. 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: 8,238
    09-05-2012, 07:46 AM Go to last post
  40. Trane package unit

    Started by caheiman30, 08-15-2012 03:16 PM
    6 Pages
    1 2 3 4 5 6
    • Replies: 73
    • Views: 8,159
    08-22-2012, 12:45 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: 8,144
    08-24-2011, 11:37 PM Go to last post
  42. YCD Powerburner Issues

    Started by vin lashon, 12-09-2011 09:02 PM
    2 Pages
    1 2
    • Replies: 14
    • Views: 8,090
    04-08-2012, 07:14 PM Go to last post
  43. COMPRESSOR LIFT

    Started by low pressure guy, 07-19-2009 09:08 AM
    4 Pages
    1 2 3 4
    • Replies: 44
    • Views: 8,063
    05-03-2014, 11:49 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: 7,984
    03-25-2012, 07:32 AM Go to last post
  45. 3 phase ac compressor

    Started by biggi, 04-16-2013 08:34 PM
    3 Pages
    1 2 3
    • Replies: 33
    • Views: 7,852
    04-20-2013, 07:09 AM Go to last post
  46. Buensod vav box..

    Started by Air_Head73, 07-06-2007 02:58 PM
    2 Pages
    1 2
    • Replies: 20
    • Views: 7,727
    12-21-2011, 02:31 PM Go to last post
  47. 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: 7,672
    07-14-2012, 09:33 PM Go to last post
  48. Pleats Vs. Poly Rolls

    Started by MicahWes, 12-09-2011 12:23 AM
    • Replies: 9
    • Views: 7,455
    12-15-2011, 10:19 AM Go to last post

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