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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: NO AOP posts here please. ONLY Tech to Tech chatter

    Started by Dad, 08-10-2011 04:34 PM
    • Replies: 0
    • Views: 3,345
    08-10-2011, 04:34 PM Go to last post
  1. Internal Bypass TXV?

    Started by 02JeepKing, 05-30-2013 08:44 PM
    • Replies: 4
    • Views: 484
    05-30-2013, 09:28 PM Go to last post
  2. Lennox Gurus

    Started by 1-Hvacdoc, 08-20-2011 09:53 AM
    • Replies: 4
    • Views: 1,227
    08-20-2011, 09:58 PM Go to last post
    • Replies: 4
    • Views: 934
    05-15-2012, 06:59 PM Go to last post
  3. systems with dual tx valves and check valves

    Started by 12gauge, 07-26-2013 04:07 AM
    • Replies: 1
    • Views: 310
    07-26-2013, 11:34 PM Go to last post
  4. DX dehum makeup air units

    Started by 19characterusername, 07-12-2012 10:38 PM
    • Replies: 5
    • Views: 751
    07-22-2012, 10:06 PM Go to last post
  5. Trane E Machine Rebuild Info requested

    Started by 1SikLBZ, 08-28-2013 10:25 PM
    • Replies: 4
    • Views: 348
    10-01-2013, 11:10 AM Go to last post
  6. Hmm Unloaders

    Started by 1tonn, 03-23-2012 08:44 PM
    • Replies: 3
    • Views: 744
    03-23-2012, 09:49 PM Go to last post
  7. Nu-Calgon Moisture Removal

    Started by 1tonn, 08-08-2013 11:54 AM
    • Replies: 5
    • Views: 369
    08-08-2013, 07:13 PM Go to last post
    • Replies: 12
    • Views: 677
    09-09-2013, 02:15 AM Go to last post
  8. I hate phantom voltage

    Started by 2sac, 12-08-2011 11:36 PM
    • Replies: 8
    • Views: 736
    12-10-2011, 08:45 AM Go to last post
  9. Oil in a gas line

    Started by 2sac, 01-05-2012 09:36 PM
    • Replies: 5
    • Views: 642
    01-23-2012, 07:52 PM Go to last post
  10. Need a manual and/or schematic for GE

    Started by 2sac, 01-16-2013 06:54 PM
    • Replies: 3
    • Views: 375
    01-18-2013, 01:22 AM Go to last post
  11. Confused Weil McLain GV-6 No HSI voltage

    Started by 2story, 09-09-2013 10:10 PM
    • Replies: 0
    • Views: 200
    09-09-2013, 10:10 PM Go to last post
  12. Trane Voyager, intermitant No Heat

    Started by 2wings, 12-31-2013 09:31 AM
    3 Pages
    1 2 3
    • Replies: 27
    • Views: 1,142
    01-03-2014, 04:23 PM Go to last post
  13. how do i tell when my vac pump is going bad?

    Started by 3800tom, 08-29-2011 01:37 PM
    2 Pages
    1 2
    • Replies: 17
    • Views: 1,619
    11-19-2011, 12:16 PM Go to last post
  14. Adjust an EPR w/o a pressure tap?

    Started by 3800tom, 09-01-2011 12:13 PM
    • Replies: 10
    • Views: 1,093
    02-25-2013, 09:15 PM Go to last post
  15. McQuay water source heat pump

    Started by 461pat, 11-03-2011 08:09 AM
    2 Pages
    1 2
    • Replies: 20
    • Views: 2,557
    03-02-2012, 09:02 PM Go to last post
  16. Confused Control Head on Variable Speed pumping systems?

    Started by 500GPMdT, 05-28-2013 02:05 PM
    • Replies: 9
    • Views: 641
    06-03-2013, 04:06 PM Go to last post
  17. WSHP & fluid cooler education

    Started by 500GPMdT, 07-01-2013 09:04 PM
    • Replies: 1
    • Views: 412
    07-02-2013, 10:23 AM Go to last post
  18. Trane Intellipak EF problem

    Started by 501miller, 03-15-2013 09:00 AM
    • Replies: 9
    • Views: 747
    04-02-2013, 12:45 AM Go to last post
  19. Daikin VRV's or Mitsubiski VRD

    Started by 50Panhead, 03-20-2013 04:29 PM
    • Replies: 0
    • Views: 301
    03-20-2013, 04:29 PM Go to last post
  20. mitsubishi mr slim restriction

    Started by 7dayprogramable, 09-28-2012 06:00 PM
    • Replies: 1
    • Views: 539
    09-28-2012, 07:42 PM Go to last post
  21. Any experience with this stat?

    Started by 7point62, 06-19-2013 06:04 PM
    • Replies: 2
    • Views: 339
    06-25-2013, 10:16 PM Go to last post
  22. blast chillers

    Started by 85goldwing, 08-16-2011 10:30 PM
    2 Pages
    1 2
    • Replies: 23
    • Views: 1,736
    09-28-2011, 11:40 PM Go to last post
  23. Trane Model YCH060C1L0BE

    Started by 907Controls, 02-20-2013 07:00 PM
    • Replies: 0
    • Views: 247
    02-20-2013, 07:00 PM Go to last post
  24. Ammonia in the air

    Started by 929rc51, 04-13-2014 07:23 PM
    • Replies: 6
    • Views: 207
    04-13-2014, 08:33 PM Go to last post
  25. JACE to RTU wiring

    Started by aamtech, 03-10-2014 04:10 PM
    • Replies: 2
    • Views: 262
    03-11-2014, 01:26 PM Go to last post
  26. High side pressure higher than normal...

    Started by aaronkim92, 04-25-2012 12:56 PM
    3 Pages
    1 2 3
    • Replies: 29
    • Views: 2,569
    05-08-2012, 10:55 AM Go to last post
  27. Low Suction Compressor #1 StulZ VHS

    Started by aaronmorgan19, 11-20-2011 11:51 AM
    2 Pages
    1 2
    • Replies: 14
    • Views: 731
    11-23-2011, 09:01 AM Go to last post
  28. Melted contactor, Lennox 6 ton rtu

    Started by Aaronn, 07-01-2013 11:33 PM
    2 Pages
    1 2
    • Replies: 13
    • Views: 892
    07-04-2013, 08:41 AM Go to last post
  29. low superheat control

    Started by Aaronn, 02-14-2014 11:58 PM
    • Replies: 1
    • Views: 236
    02-15-2014, 07:48 AM Go to last post
  30. JC ZJ12

    Started by AB815SC, 06-03-2013 08:53 PM
    • Replies: 5
    • Views: 310
    06-08-2013, 09:23 AM Go to last post
  31. 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: 5,010
    07-14-2012, 09:33 PM Go to last post
  32. LG VRF system

    Started by abcets, 04-02-2014 08:35 AM
    • Replies: 8
    • Views: 280
    04-05-2014, 02:02 AM Go to last post
  33. Scottsman flaker

    Started by Abrnth3, 03-15-2013 01:16 PM
    • Replies: 1
    • Views: 293
    03-16-2013, 08:53 AM Go to last post
  34. Frown R22 Replacement

    Started by Abrnth3, 03-15-2013 01:03 PM
    2 Pages
    1 2
    • Replies: 19
    • Views: 1,910
    06-23-2013, 02:31 PM Go to last post
  35. Trane Voyager

    Started by Abrnth3, 06-13-2013 11:29 AM
    3 Pages
    1 2 3
    • Replies: 35
    • Views: 1,921
    06-19-2013, 09:07 PM Go to last post
  36. Confused Formicary Corrosion

    Started by acdave17, 11-29-2011 08:54 PM
    • Replies: 4
    • Views: 790
    12-08-2011, 09:07 PM Go to last post
  37. Thumbs up 460V 1PH condenser fan motor ????

    Started by AcDOCnTRAINING, 02-07-2008 05:15 PM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 80
    • Views: 7,045
    09-17-2011, 10:28 PM Go to last post
  38. looking for schematic

    Started by acdude32, 05-24-2012 04:06 PM
    • Replies: 2
    • Views: 536
    05-24-2012, 10:12 PM Go to last post
  39. Dilution OSA

    Started by ACFIXR, 08-11-2011 10:12 PM
    • Replies: 2
    • Views: 996
    08-12-2011, 03:07 AM Go to last post
  40. Delta High "B" phase

    Started by ACFIXR, 04-16-2012 11:42 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 1,555
    04-18-2012, 10:26 PM Go to last post
  41. Favorite VFD

    Started by ACFIXR, 04-18-2012 12:34 AM
    3 Pages
    1 2 3
    • Replies: 26
    • Views: 2,300
    05-15-2012, 01:51 PM Go to last post
  42. Reactors

    Started by ACFIXR, 04-29-2012 12:53 PM
    • Replies: 1
    • Views: 537
    04-29-2012, 07:41 PM Go to last post
  43. Blower motors-Carrier

    Started by ACFIXR, 05-16-2012 01:03 AM
    • Replies: 5
    • Views: 2,735
    05-16-2012, 10:24 AM Go to last post
  44. Sealtight

    Started by ACFIXR, 01-03-2013 11:53 PM
    • Replies: 2
    • Views: 519
    01-04-2013, 08:56 AM Go to last post
  45. pin hole leak compressor shell

    Started by ACFIXR, 10-04-2013 01:53 PM
    2 Pages
    1 2
    • Replies: 17
    • Views: 970
    10-06-2013, 02:38 PM Go to last post
  46. Copeland tandem compressors over amping.

    Started by acguy951, 10-20-2012 11:35 AM
    2 Pages
    1 2
    • Replies: 22
    • Views: 2,766
    11-02-2012, 11:07 PM Go to last post
  47. Confused Comfortmaker package units

    Started by ackid, 06-27-2012 10:11 AM
    • Replies: 6
    • Views: 945
    06-27-2012, 08:17 PM Go to last post
    • Replies: 3
    • Views: 589
    05-23-2012, 01:22 PM Go to last post

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