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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: 9,345
    08-10-2011, 04:34 PM Go to last post
  1. Normal Thread Normal Threads

  2. Cascade system

    Started by Acrooster, 01-20-2015 10:24 AM
    3 Pages
    1 2 3
    • Replies: 33
    • Views: 6,530
    10-01-2015, 06:39 AM Go to last post
  3. steam trap

    Started by targetman, 09-30-2015 06:44 PM
    • Replies: 2
    • Views: 829
    09-30-2015, 08:16 PM Go to last post
  4. Would like to understand Make up Air units

    Started by rvandervelden, 09-29-2015 12:20 AM
    • Replies: 5
    • Views: 1,143
    09-29-2015, 11:33 PM Go to last post
  5. Boiler section removal

    Started by SliceOfProvolon, 09-19-2015 10:16 PM
    2 Pages
    1 2
    • Replies: 14
    • Views: 2,140
    09-29-2015, 11:07 AM Go to last post
  6. Economizer troubleshooting

    Started by rvandervelden, 09-29-2015 12:17 AM
    • Replies: 3
    • Views: 1,015
    09-29-2015, 08:47 AM Go to last post
  7. Commercial Carrier AC RTUnit Water Leaking inside

    Started by Perrytech, 09-15-2015 08:51 PM
    2 Pages
    1 2
    • Replies: 24
    • Views: 2,871
    09-27-2015, 07:50 PM Go to last post
  8. Fan speed head pressure control

    Started by rrobmac, 07-29-2015 12:55 AM
    • Replies: 9
    • Views: 2,205
    09-27-2015, 01:52 PM Go to last post
  9. york rtu DR180 high head , some help please

    Started by COOLJIM, 09-07-2015 12:06 AM
    4 Pages
    1 2 3 4
    • Replies: 44
    • Views: 5,144
    09-27-2015, 01:51 PM Go to last post
  10. test

    Started by randy29, 09-23-2015 09:06 AM
    • Replies: 7
    • Views: 1,107
    09-23-2015, 02:49 PM Go to last post
  11. Goodman PCC090-4F

    Started by ltucker, 09-21-2015 04:57 PM
    • Replies: 1
    • Views: 845
    09-22-2015, 08:15 AM Go to last post
  12. Boiler Service Techs

    Started by TeemsSteam, 09-16-2015 07:48 PM
    2 Pages
    1 2
    • Replies: 14
    • Views: 2,199
    09-22-2015, 07:06 AM Go to last post
  13. lennox L series

    Started by aftech, 03-17-2014 10:29 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 3,118
    09-22-2015, 05:09 AM Go to last post
  14. Hot Yoga room questions

    Started by burke513, 09-21-2015 09:54 AM
    • Replies: 6
    • Views: 1,273
    09-21-2015, 08:36 PM Go to last post
  15. Make up air design issue..??

    Started by UmmScott, 09-16-2015 11:01 PM
    4 Pages
    1 2 3 4
    • Replies: 42
    • Views: 3,793
    09-20-2015, 09:32 PM Go to last post
  16. Mr. Slim Error code "EC" fix????

    Started by 4x4grey88, 09-19-2015 10:41 PM
    • Replies: 4
    • Views: 1,144
    09-20-2015, 08:29 AM Go to last post
  17. Replaceable core filters

    Started by targetman, 09-14-2015 06:08 PM
    • Replies: 11
    • Views: 1,337
    09-19-2015, 12:44 PM Go to last post
  18. What type of flaring tool is best for Mini splits

    Started by Junior1983, 08-10-2015 11:45 PM
    2 Pages
    1 2
    • Replies: 24
    • Views: 5,167
    09-18-2015, 06:56 PM Go to last post
  19. Roof Top Unit Condensate Drain Lines

    Started by PAREFERGUY, 07-23-2015 10:44 AM
    3 Pages
    1 2 3
    • Replies: 27
    • Views: 4,667
    09-18-2015, 05:35 PM Go to last post
  20. Lennox RTU Liquid Line?

    Started by Bunyan, 09-10-2015 10:08 AM
    • Replies: 6
    • Views: 944
    09-18-2015, 03:59 PM Go to last post
  21. Suitable Thermostat Replacement

    Started by bradosia, 09-18-2015 01:05 PM
    • Replies: 1
    • Views: 421
    09-18-2015, 03:50 PM Go to last post
  22. Carrier 7.5 ton gas pack

    Started by John Copley, 09-17-2015 07:42 AM
    • Replies: 3
    • Views: 633
    09-18-2015, 03:46 PM Go to last post
  23. Cleaver Brooks 500hps.....

    Started by Davect, 07-16-2015 08:12 AM
    2 Pages
    1 2
    • Replies: 16
    • Views: 2,220
    09-17-2015, 09:12 PM Go to last post
  24. Classes/Books

    Started by Parkeraustin, 09-16-2015 10:44 PM
    • Replies: 7
    • Views: 759
    09-17-2015, 08:10 PM Go to last post
  25. Looking for Buffalo Forge Blower fan data

    Started by thump_rrr, 09-17-2015 12:00 PM
    • Replies: 0
    • Views: 509
    09-17-2015, 12:00 PM Go to last post
  26. Help on tracking a trademark, so I can do further research

    Started by zartangreen, 09-15-2015 11:26 PM
    2 Pages
    1 2
    • Replies: 14
    • Views: 1,131
    09-16-2015, 04:01 PM Go to last post
    • Replies: 3
    • Views: 805
    09-16-2015, 02:03 PM Go to last post
  27. drilling into clay tile

    Started by snupytcb, 09-15-2015 08:37 AM
    • Replies: 7
    • Views: 1,053
    09-16-2015, 08:15 AM Go to last post
  28. Need Some Help

    Started by Bassmastermat, 09-13-2015 06:23 PM
    • Replies: 10
    • Views: 1,245
    09-15-2015, 10:57 PM Go to last post
  29. Lennox all contactors humming not pulling all way in

    Started by javier_119, 08-29-2015 07:31 PM
    4 Pages
    1 2 3 4
    • Replies: 46
    • Views: 5,882
    09-15-2015, 08:50 PM Go to last post
  30. Training

    Started by sloppyjoe1, 08-30-2015 06:19 PM
    • Replies: 3
    • Views: 1,448
    09-15-2015, 01:25 AM Go to last post
  31. Duct Sizing and Static

    Started by ARK Cooling, 09-11-2015 05:19 PM
    • Replies: 5
    • Views: 930
    09-14-2015, 09:20 PM Go to last post
  32. Smile Quickly sketch and share HVAC systems

    Started by Frozenlock, 01-07-2015 03:56 PM
    3 Pages
    1 2 3
    • Replies: 32
    • Views: 6,684
    09-14-2015, 12:47 PM Go to last post
  33. Hmm Origin of thermostat terminal letters

    Started by Bruce Hendricks, 09-10-2015 12:38 PM
    4 Pages
    1 2 3 4
    • Replies: 47
    • Views: 3,409
    09-13-2015, 10:19 PM Go to last post
  34. Wattmaster/ Aaon control question

    Started by bgrich2003, 09-11-2015 02:00 PM
    • Replies: 4
    • Views: 709
    09-13-2015, 11:41 AM Go to last post
  35. Capacity control problem

    Started by alex87gr, 08-13-2015 01:33 PM
    2 Pages
    1 2
    • Replies: 22
    • Views: 3,051
    09-12-2015, 03:41 PM Go to last post
  36. How to test Compressor Valves

    Started by Junior1983, 09-09-2015 11:49 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 1,734
    09-12-2015, 01:49 PM Go to last post
  37. Carrier PTAC blower wheel replacement

    Started by killer v, 09-10-2015 02:54 PM
    • Replies: 2
    • Views: 504
    09-10-2015, 04:09 PM Go to last post
    • Replies: 5
    • Views: 754
    09-10-2015, 09:33 AM Go to last post
  38. Cooler electric defrost

    Started by lytning, 09-09-2015 10:01 AM
    • Replies: 6
    • Views: 926
    09-10-2015, 05:32 AM Go to last post
  39. Question about Water Source Heatpumps

    Started by hvacsolutions, 11-05-2013 03:09 PM
    3 Pages
    1 2 3
    • Replies: 33
    • Views: 3,001
    09-10-2015, 03:22 AM Go to last post
  40. Making the switch from residential to commercial

    Started by mpenney, 09-01-2015 08:36 PM
    2 Pages
    1 2
    • Replies: 14
    • Views: 1,939
    09-09-2015, 07:31 PM Go to last post
    • Replies: 11
    • Views: 1,767
    09-09-2015, 12:40 PM Go to last post
  41. Condensate lines for high efficiency unit

    Started by Dumplumer, 09-06-2015 02:00 PM
    • Replies: 6
    • Views: 843
    09-07-2015, 06:22 AM Go to last post
  42. Carrier 50HJQ intermittent issues.

    Started by mbarker84, 09-04-2015 06:12 PM
    • Replies: 11
    • Views: 1,009
    09-06-2015, 12:21 PM Go to last post
  43. Duct static Readings Mean?

    Started by Junior1983, 08-28-2015 11:44 PM
    2 Pages
    1 2
    • Replies: 13
    • Views: 2,156
    09-04-2015, 05:24 PM Go to last post
    • Replies: 12
    • Views: 2,892
    09-04-2015, 12:38 PM Go to last post
  44. Confused Daikin fan speed???

    Started by Big Unit, 09-02-2015 11:27 AM
    • Replies: 3
    • Views: 833
    09-04-2015, 12:14 PM Go to last post
  45. I have a 6 amp motor running 18 amps measured after the VFD

    Started by alikair, 09-02-2015 10:59 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 1,853
    09-04-2015, 10:07 AM Go to last post
  46. 1950's Trane Univent

    Started by mkraintz, 09-02-2015 11:56 AM
    • Replies: 0
    • Views: 575
    09-02-2015, 11:56 AM Go to last post
  47. Re insulation of Refrigerant Lines

    Started by Cory Wells, 08-25-2015 11:40 AM
    2 Pages
    1 2
    • Replies: 22
    • Views: 4,201
    09-02-2015, 10:43 AM Go to last post

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