1. Announcement:
    User Device Poll
    Dad (Site Administrator)
    07-20-2016
    Views:
    54,544
Page 1 of 100 123456781151 ... LastLast
Threads 1 to 50 of 4988

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: 9,869
    08-10-2011, 04:34 PM Go to last post
  1. Normal Thread Normal Threads

    • Replies: 25
    • Views: 841
    11-10-2016, 06:19 AM Go to last post
  2. Internal Bypass TXV?

    Started by 02JeepKing, 05-30-2013 08:44 PM
    • Replies: 4
    • Views: 1,355
    05-30-2013, 09:28 PM Go to last post
  3. Lennox Gurus

    Started by 1-Hvacdoc, 08-20-2011 09:53 AM
    • Replies: 4
    • Views: 3,627
    08-20-2011, 09:58 PM Go to last post
    • Replies: 4
    • Views: 1,670
    05-15-2012, 06:59 PM Go to last post
  4. Chattering gas valve

    Started by 11austinlee, 01-14-2017 08:52 AM
    3 Pages
    1 2 3
    • Replies: 26
    • Views: 1,024
    01-16-2017, 10:53 PM Go to last post
  5. Trane CTI Controls

    Started by 11austinlee, 02-16-2017 02:02 PM
    • Replies: 4
    • Views: 250
    02-16-2017, 04:44 PM Go to last post
  6. Rtu and digicools.

    Started by 11crv, 05-29-2014 08:34 PM
    • Replies: 7
    • Views: 1,192
    05-30-2014, 12:46 PM Go to last post
  7. systems with dual tx valves and check valves

    Started by 12gauge, 07-26-2013 04:07 AM
    • Replies: 2
    • Views: 847
    02-03-2017, 12:16 AM Go to last post
  8. Trane YCD240 gas valve operation

    Started by 1966Chevy2, 10-05-2014 05:28 PM
    • Replies: 8
    • Views: 1,702
    10-07-2014, 10:52 AM Go to last post
  9. DX dehum makeup air units

    Started by 19characterusername, 07-12-2012 10:38 PM
    • Replies: 5
    • Views: 1,571
    07-22-2012, 10:06 PM Go to last post
  10. Trane E Machine Rebuild Info requested

    Started by 1SikLBZ, 08-28-2013 10:25 PM
    • Replies: 4
    • Views: 1,154
    10-01-2013, 11:10 AM Go to last post
  11. Pneumatic Receiver Controller P541

    Started by 1SikLBZ, 01-12-2015 09:24 PM
    • Replies: 3
    • Views: 1,473
    01-13-2015, 05:21 PM Go to last post
  12. Carrier 50AK 50 Ton Unit

    Started by 1SikLBZ, 03-23-2015 09:55 PM
    • Replies: 7
    • Views: 1,485
    03-26-2015, 04:18 PM Go to last post
  13. Hmm Unloaders

    Started by 1tonn, 03-23-2012 08:44 PM
    • Replies: 3
    • Views: 1,493
    03-23-2012, 09:49 PM Go to last post
  14. Nu-Calgon Moisture Removal

    Started by 1tonn, 08-08-2013 11:54 AM
    • Replies: 5
    • Views: 1,311
    08-08-2013, 07:13 PM Go to last post
  15. RTU with ERV

    Started by 24/7mechanical, 10-23-2016 06:04 PM
    2 Pages
    1 2
    • Replies: 21
    • Views: 1,250
    11-26-2016, 04:34 PM Go to last post
    • Replies: 12
    • Views: 2,048
    09-09-2013, 02:15 AM Go to last post
  16. What am I missing?

    Started by 280zx, 07-22-2015 09:06 PM
    4 Pages
    1 2 3 4
    • Replies: 39
    • Views: 7,615
    02-03-2017, 12:48 AM Go to last post
  17. I hate phantom voltage

    Started by 2sac, 12-09-2011 12:36 AM
    2 Pages
    1 2
    • Replies: 17
    • Views: 2,200
    02-05-2017, 11:18 AM Go to last post
  18. Oil in a gas line

    Started by 2sac, 01-05-2012 10:36 PM
    • Replies: 5
    • Views: 1,048
    01-23-2012, 08:52 PM Go to last post
  19. Need a manual and/or schematic for GE

    Started by 2sac, 01-16-2013 07:54 PM
    • Replies: 3
    • Views: 1,104
    01-18-2013, 02:22 AM Go to last post
  20. Confused Weil McLain GV-6 No HSI voltage

    Started by 2story, 09-09-2013 10:10 PM
    • Replies: 0
    • Views: 559
    09-09-2013, 10:10 PM Go to last post
  21. Trane Voyager, intermitant No Heat

    Started by 2wings, 12-31-2013 10:31 AM
    3 Pages
    1 2 3
    • Replies: 27
    • Views: 4,362
    01-03-2014, 05:23 PM Go to last post
  22. 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: 3,730
    11-19-2011, 01:16 PM Go to last post
  23. Adjust an EPR w/o a pressure tap?

    Started by 3800tom, 09-01-2011 12:13 PM
    • Replies: 10
    • Views: 2,371
    02-25-2013, 10:15 PM Go to last post
  24. GPM for Airflow CCT-30 Glycol System?

    Started by 3gs, 08-14-2014 10:33 AM
    • Replies: 2
    • Views: 853
    08-21-2014, 12:04 PM Go to last post
  25. Lennox 51M42 Tstat not cycling poperly.

    Started by 3rdlaw, 03-17-2015 10:29 PM
    • Replies: 1
    • Views: 521
    03-17-2015, 10:42 PM Go to last post
  26. McQuay water source heat pump

    Started by 461pat, 11-03-2011 08:09 AM
    2 Pages
    1 2
    • Replies: 20
    • Views: 6,862
    03-02-2012, 10:02 PM Go to last post
  27. Mr. Slim Error code "EC" fix????

    Started by 4x4grey88, 09-19-2015 10:41 PM
    • Replies: 4
    • Views: 1,224
    09-20-2015, 08:29 AM Go to last post
  28. Confused Control Head on Variable Speed pumping systems?

    Started by 500GPMdT, 05-28-2013 02:05 PM
    • Replies: 9
    • Views: 2,235
    06-03-2013, 04:06 PM Go to last post
  29. WSHP & fluid cooler education

    Started by 500GPMdT, 07-01-2013 09:04 PM
    • Replies: 1
    • Views: 831
    07-02-2013, 10:23 AM Go to last post
  30. Trane Intellipak EF problem

    Started by 501miller, 03-15-2013 09:00 AM
    • Replies: 9
    • Views: 1,812
    04-02-2013, 12:45 AM Go to last post
  31. Daikin VRV's or Mitsubiski VRD

    Started by 50Panhead, 03-20-2013 04:29 PM
    • Replies: 0
    • Views: 832
    03-20-2013, 04:29 PM Go to last post
  32. 120V Commercial Honeywell thermostat install question

    Started by 520, 06-10-2016 06:23 PM
    • Replies: 3
    • Views: 599
    06-16-2016, 06:41 PM Go to last post
  33. United Refrigeration recovery cylinder problems

    Started by 71CHOPS, 09-19-2016 09:51 AM
    3 Pages
    1 2 3
    • Replies: 29
    • Views: 2,513
    10-12-2016, 09:47 AM Go to last post
  34. older Lennox LCA 240

    Started by 75Porsche, 10-06-2014 04:43 PM
    • Replies: 8
    • Views: 1,670
    10-07-2014, 06:30 PM Go to last post
  35. American standard cast iron boiler

    Started by 77 highboy, 10-17-2016 09:45 AM
    • Replies: 7
    • Views: 483
    10-17-2016, 10:23 PM Go to last post
  36. Sealed or replaceable core?

    Started by 787REFMEC, 02-05-2015 09:10 PM
    • Replies: 10
    • Views: 1,620
    02-08-2015, 08:36 AM Go to last post
  37. mitsubishi mr slim restriction

    Started by 7dayprogramable, 09-28-2012 06:00 PM
    • Replies: 1
    • Views: 1,089
    09-28-2012, 07:42 PM Go to last post
  38. Any experience with this stat?

    Started by 7point62, 06-19-2013 06:04 PM
    • Replies: 2
    • Views: 717
    06-25-2013, 10:16 PM Go to last post
  39. blast chillers

    Started by 85goldwing, 08-16-2011 10:30 PM
    2 Pages
    1 2
    • Replies: 23
    • Views: 3,398
    09-28-2011, 11:40 PM Go to last post
  40. Trane Model YCH060C1L0BE

    Started by 907Controls, 02-20-2013 08:00 PM
    • Replies: 0
    • Views: 879
    02-20-2013, 08:00 PM Go to last post
  41. Ammonia in the air

    Started by 929rc51, 04-13-2014 07:23 PM
    • Replies: 6
    • Views: 1,060
    04-13-2014, 08:33 PM Go to last post
  42. copper to brass

    Started by 9live, 06-23-2016 11:00 PM
    2 Pages
    1 2
    • Replies: 17
    • Views: 1,471
    06-30-2016, 07:47 PM Go to last post
  43. JACE to RTU wiring

    Started by aamtech, 03-10-2014 04:10 PM
    • Replies: 2
    • Views: 853
    03-11-2014, 01:26 PM Go to last post
  44. High side pressure higher than normal...

    Started by aaronkim92, 04-25-2012 12:56 PM
    3 Pages
    1 2 3
    • Replies: 29
    • Views: 5,238
    05-08-2012, 10:55 AM Go to last post
  45. Low Suction Compressor #1 StulZ VHS

    Started by aaronmorgan19, 11-20-2011 12:51 PM
    2 Pages
    1 2
    • Replies: 14
    • Views: 1,521
    11-23-2011, 10:01 AM Go to last post
  46. Melted contactor, Lennox 6 ton rtu

    Started by Aaronn, 07-01-2013 11:33 PM
    2 Pages
    1 2
    • Replies: 13
    • Views: 3,177
    07-04-2013, 08:41 AM Go to last post
  47. low superheat control

    Started by Aaronn, 02-15-2014 12:58 AM
    • Replies: 1
    • Views: 880
    02-15-2014, 08:48 AM Go to last post
  48. JC ZJ12

    Started by AB815SC, 06-03-2013 08:53 PM
    • Replies: 5
    • Views: 907
    06-08-2013, 09:23 AM Go to last post

Page 1 of 100 123456781151 ... LastLast

Thread Display Options

Use this control to limit the display of threads to those newer than the specified time frame.

Allows you to choose the data by which the thread list will be sorted.

Order threads in...

Note: when sorting by date, 'descending order' will show the newest results first.

Icon Legend

Contains unread posts
Contains unread posts
Contains no unread posts
Contains no unread posts
More than 20 replies or 150 views
Hot thread with unread posts
More than 20 replies or 150 views
Hot thread with no unread posts
Closed Thread
Thread is closed
Thread Contains a Message Written By You
You have posted in this thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Related Forums

Plumbing Talks | Contractor MagazineThe place where Electrical professionals meet.