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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: 10,272
    08-10-2011, 04:34 PM Go to last post
  1. Normal Thread Normal Threads

  2. 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: 3,989
    09-13-2015, 10:19 PM Go to last post
  3. Wattmaster/ Aaon control question

    Started by bgrich2003, 09-11-2015 02:00 PM
    • Replies: 4
    • Views: 787
    09-13-2015, 11:41 AM Go to last post
  4. Capacity control problem

    Started by alex87gr, 08-13-2015 01:33 PM
    2 Pages
    1 2
    • Replies: 22
    • Views: 3,475
    09-12-2015, 03:41 PM Go to last post
  5. How to test Compressor Valves

    Started by Junior1983, 09-09-2015 11:49 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 2,011
    09-12-2015, 01:49 PM Go to last post
  6. Carrier PTAC blower wheel replacement

    Started by killer v, 09-10-2015 02:54 PM
    • Replies: 2
    • Views: 558
    09-10-2015, 04:09 PM Go to last post
    • Replies: 5
    • Views: 813
    09-10-2015, 09:33 AM Go to last post
  7. Cooler electric defrost

    Started by lytning, 09-09-2015 10:01 AM
    • Replies: 6
    • Views: 1,061
    09-10-2015, 05:32 AM Go to last post
  8. Question about Water Source Heatpumps

    Started by hvacsolutions, 11-05-2013 03:09 PM
    3 Pages
    1 2 3
    • Replies: 33
    • Views: 3,359
    09-10-2015, 03:22 AM Go to last post
  9. Making the switch from residential to commercial

    Started by mpenney, 09-01-2015 08:36 PM
    2 Pages
    1 2
    • Replies: 14
    • Views: 2,292
    09-09-2015, 07:31 PM Go to last post
    • Replies: 11
    • Views: 2,049
    09-09-2015, 12:40 PM Go to last post
  10. Condensate lines for high efficiency unit

    Started by Dumplumer, 09-06-2015 02:00 PM
    • Replies: 6
    • Views: 959
    09-07-2015, 06:22 AM Go to last post
  11. Carrier 50HJQ intermittent issues.

    Started by mbarker84, 09-04-2015 06:12 PM
    • Replies: 11
    • Views: 1,104
    09-06-2015, 12:21 PM Go to last post
  12. Duct static Readings Mean?

    Started by Junior1983, 08-28-2015 11:44 PM
    2 Pages
    1 2
    • Replies: 13
    • Views: 2,540
    09-04-2015, 05:24 PM Go to last post
    • Replies: 12
    • Views: 3,684
    09-04-2015, 12:38 PM Go to last post
  13. Confused Daikin fan speed???

    Started by Big Unit, 09-02-2015 11:27 AM
    • Replies: 3
    • Views: 955
    09-04-2015, 12:14 PM Go to last post
  14. 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: 2,246
    09-04-2015, 10:07 AM Go to last post
  15. 1950's Trane Univent

    Started by mkraintz, 09-02-2015 11:56 AM
    • Replies: 0
    • Views: 651
    09-02-2015, 11:56 AM Go to last post
  16. Re insulation of Refrigerant Lines

    Started by Cory Wells, 08-25-2015 11:40 AM
    2 Pages
    1 2
    • Replies: 22
    • Views: 4,497
    09-02-2015, 10:43 AM Go to last post
  17. chrigs

    Started by chrigs, 09-01-2015 01:55 PM
    • Replies: 8
    • Views: 1,271
    09-01-2015, 09:12 PM Go to last post
  18. Fresh air intake options

    Started by swetha, 08-31-2015 03:07 AM
    • Replies: 3
    • Views: 943
    09-01-2015, 07:04 PM Go to last post
  19. Best vaccum pump

    Started by Junior1983, 08-14-2015 12:07 AM
    5 Pages
    1 2 3 4 5
    • Replies: 59
    • Views: 7,505
    09-01-2015, 04:03 PM Go to last post
  20. Using 1/3 hp instead of 1/4 hp any problem?

    Started by DeltaTech, 08-31-2015 11:23 AM
    • Replies: 9
    • Views: 1,855
    09-01-2015, 02:43 PM Go to last post
  21. Copeland temperature sensor question

    Started by richp, 08-31-2015 07:35 PM
    • Replies: 8
    • Views: 1,442
    09-01-2015, 09:21 AM Go to last post
  22. Lennox CHP20-060-4G Issues?

    Started by Junior1983, 08-31-2015 11:12 PM
    • Replies: 1
    • Views: 1,036
    09-01-2015, 12:57 AM Go to last post
  23. Scroll Vibration

    Started by jimp, 08-30-2015 01:01 PM
    2 Pages
    1 2
    • Replies: 13
    • Views: 2,133
    08-31-2015, 11:02 PM Go to last post
  24. New AC problem

    Started by Bdeeks, 08-31-2015 12:45 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 1,982
    08-31-2015, 03:57 PM Go to last post
  25. Manuals

    Started by wra, 07-31-2015 07:06 PM
    • Replies: 6
    • Views: 1,879
    08-31-2015, 07:10 AM Go to last post
  26. What up with icp technical support?

    Started by drage93, 08-30-2015 02:13 PM
    • Replies: 4
    • Views: 1,820
    08-30-2015, 11:32 PM Go to last post
  27. Exeter XL system controller manual search

    Started by xibu, 08-30-2015 10:57 PM
    • Replies: 0
    • Views: 1,065
    08-30-2015, 10:57 PM Go to last post
  28. Help! Uneven amp draw on fan motor.

    Started by DanDaMan370, 08-28-2015 12:29 AM
    7 Pages
    1 2 3 4 5 6 ... 7
    • Replies: 89
    • Views: 9,244
    08-30-2015, 06:08 PM Go to last post
  29. lennox package unit

    Started by drage93, 08-22-2015 09:13 PM
    3 Pages
    1 2 3
    • Replies: 35
    • Views: 4,312
    08-28-2015, 08:30 PM Go to last post
  30. HOW DOES THIS WORK ? 4 STAGE THERMOSTAT

    Started by lostro, 08-25-2015 12:16 AM
    • Replies: 5
    • Views: 1,333
    08-28-2015, 04:45 PM Go to last post
    • Replies: 8
    • Views: 1,437
    08-28-2015, 04:17 AM Go to last post
  31. Honeywell JADE economiser

    Started by Junior1983, 05-09-2015 10:59 PM
    2 Pages
    1 2
    • Replies: 21
    • Views: 4,272
    08-27-2015, 10:27 PM Go to last post
  32. 60 ton Trane Chiller (2003)

    Started by hcpwr, 07-10-2015 06:55 PM
    2 Pages
    1 2
    • Replies: 13
    • Views: 2,657
    08-27-2015, 07:56 PM Go to last post
  33. Envision water furnace question

    Started by rrobmac, 08-27-2015 06:06 PM
    • Replies: 0
    • Views: 684
    08-27-2015, 06:06 PM Go to last post
  34. liebert product data

    Started by timjimbob, 08-25-2015 07:26 AM
    • Replies: 4
    • Views: 1,105
    08-27-2015, 07:13 AM Go to last post
  35. ABB 550 VFD trips over current?

    Started by CEAS-AC-TECH, 08-26-2015 09:32 AM
    • Replies: 11
    • Views: 1,619
    08-26-2015, 11:01 PM Go to last post
  36. Pumping down circuit

    Started by hands, 08-25-2015 08:34 PM
    2 Pages
    1 2
    • Replies: 14
    • Views: 2,117
    08-26-2015, 06:28 PM Go to last post
  37. Roof reinforcement for new RTU install

    Started by checkpoint, 08-26-2015 12:25 PM
    • Replies: 2
    • Views: 887
    08-26-2015, 01:16 PM Go to last post
  38. Post Copeland Scroll Compressor Data Needed

    Started by Push It, 08-25-2015 05:15 PM
    • Replies: 6
    • Views: 1,072
    08-26-2015, 07:23 AM Go to last post
  39. Am I reading PT chart correctly?

    Started by Junior1983, 08-23-2015 06:18 PM
    • Replies: 10
    • Views: 1,497
    08-26-2015, 05:27 AM Go to last post
    • Replies: 11
    • Views: 2,123
    08-25-2015, 07:06 PM Go to last post
  40. carrier 06la118 compressor

    Started by james mo, 08-24-2015 08:52 PM
    • Replies: 2
    • Views: 992
    08-25-2015, 02:59 PM Go to last post
  41. Old Trane Multizone Unit

    Started by raven5, 08-25-2015 11:13 AM
    • Replies: 1
    • Views: 1,122
    08-25-2015, 11:39 AM Go to last post
  42. McQuay RTU High Pressure lock out problem

    Started by richper, 08-05-2015 04:27 PM
    2 Pages
    1 2
    • Replies: 21
    • Views: 2,952
    08-24-2015, 10:16 PM Go to last post
  43. Humidity control problems with Humidisk65

    Started by Tularac, 08-24-2015 04:41 PM
    • Replies: 1
    • Views: 756
    08-24-2015, 09:17 PM Go to last post
  44. Confused Condenser fan is not discharging properly. NEED HELP!

    Started by Robert Roman, 08-16-2015 07:33 PM
    4 Pages
    1 2 3 4
    • Replies: 45
    • Views: 5,484
    08-24-2015, 06:33 PM Go to last post
  45. Equipment sizing / load calculations

    Started by fr420, 08-21-2015 10:12 PM
    • Replies: 5
    • Views: 1,118
    08-24-2015, 02:43 PM Go to last post
  46. Leak repair

    Started by tpodany88, 01-13-2014 07:56 PM
    4 Pages
    1 2 3 4
    • Replies: 42
    • Views: 9,251
    08-24-2015, 09:14 AM Go to last post

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