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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: 10,544
    08-10-2011, 04:34 PM Go to last post
  1. Normal Thread Normal Threads

  2. txv woes and possible check valve instead??

    Started by ricktech75, 02-05-2016 07:14 PM
    4 Pages
    1 2 3 4
    • Replies: 44
    • Views: 3,513
    02-10-2016, 10:17 AM Go to last post
  3. VAV systems with wild return

    Started by DDCSD, 01-09-2016 07:27 PM
    2 Pages
    1 2
    • Replies: 18
    • Views: 2,236
    02-09-2016, 09:26 PM Go to last post
  4. zoomlock ????????????

    Started by thirty years, 02-07-2016 08:54 AM
    3 Pages
    1 2 3
    • Replies: 26
    • Views: 3,368
    02-09-2016, 08:59 PM Go to last post
  5. Upgrading Ambulance Thermostat to Digital

    Started by squack18, 01-31-2016 09:57 PM
    • Replies: 4
    • Views: 851
    02-09-2016, 03:27 PM Go to last post
  6. Webco Engineering Parts

    Started by pnagel180, 02-09-2016 12:40 PM
    • Replies: 0
    • Views: 375
    02-09-2016, 12:40 PM Go to last post
  7. Carrier 30XA Air Cooled Screw Chiller WTF!

    Started by ImpellerNut, 03-17-2010 11:22 PM
    4 Pages
    1 2 3 4
    • Replies: 40
    • Views: 12,239
    02-08-2016, 11:51 PM Go to last post
  8. AirFlow problem - lab

    Started by behappy, 01-19-2016 11:02 PM
    • Replies: 8
    • Views: 980
    02-08-2016, 07:15 PM Go to last post
  9. Supply and Return Air

    Started by Grambo, 02-07-2016 04:26 PM
    • Replies: 3
    • Views: 528
    02-07-2016, 07:25 PM Go to last post
  10. Relay

    Started by wall8427, 02-06-2016 01:07 PM
    2 Pages
    1 2
    • Replies: 20
    • Views: 1,819
    02-07-2016, 06:05 PM Go to last post
    • Replies: 1
    • Views: 317
    02-06-2016, 12:58 PM Go to last post
  11. Carrier 40MA-034-621 Multizone unit

    Started by gman994, 01-19-2016 11:28 PM
    • Replies: 4
    • Views: 826
    02-05-2016, 09:22 PM Go to last post
  12. Sensor - what is this?

    Started by DDCSD, 02-04-2016 01:42 PM
    • Replies: 9
    • Views: 1,046
    02-04-2016, 09:09 PM Go to last post
  13. Can a co meter be fooled by dust?

    Started by tinman74, 02-02-2016 04:45 PM
    • Replies: 8
    • Views: 917
    02-04-2016, 08:28 PM Go to last post
  14. Trane heat pumps

    Started by btglow94, 01-14-2016 01:33 PM
    • Replies: 6
    • Views: 898
    02-04-2016, 08:25 PM Go to last post
  15. IntelliPak compatibility

    Started by mwscott2883, 01-05-2016 02:13 PM
    • Replies: 2
    • Views: 722
    02-04-2016, 04:44 PM Go to last post
  16. Mod/Con Questions...

    Started by DDCSD, 01-26-2016 12:50 AM
    • Replies: 11
    • Views: 1,236
    02-04-2016, 01:26 AM Go to last post
  17. Sheetmetal Duct Equipment

    Started by mobeless, 02-03-2016 03:47 PM
    • Replies: 0
    • Views: 344
    02-03-2016, 03:47 PM Go to last post
  18. Trying to help friend on her walk in cooler

    Started by xero328, 02-01-2016 04:39 AM
    2 Pages
    1 2
    • Replies: 16
    • Views: 1,651
    02-02-2016, 03:25 PM Go to last post
  19. Speed control

    Started by targetman, 02-01-2016 07:03 PM
    • Replies: 2
    • Views: 591
    02-02-2016, 07:27 AM Go to last post
  20. Tripping Hi-limit, gas heat

    Started by marter, 01-20-2016 08:29 PM
    2 Pages
    1 2
    • Replies: 19
    • Views: 2,088
    02-02-2016, 01:33 AM Go to last post
  21. Prepping a Boxcar

    Started by BBeerme, 01-29-2016 10:20 PM
    • Replies: 6
    • Views: 1,036
    01-31-2016, 11:51 PM Go to last post
  22. Evaporator Upgrade

    Started by kenny bezold, 01-30-2016 07:41 PM
    • Replies: 11
    • Views: 969
    01-31-2016, 05:38 PM Go to last post
  23. Mars 32534 phase reversal protector

    Started by nmt6789, 01-31-2016 09:24 AM
    • Replies: 3
    • Views: 495
    01-31-2016, 12:05 PM Go to last post
  24. Why OEM's oversize txv?

    Started by jman2794, 01-31-2016 12:09 AM
    • Replies: 5
    • Views: 953
    01-31-2016, 10:38 AM Go to last post
  25. York Predator condenser fan blades

    Started by CHAINIK, 01-30-2016 12:09 PM
    • Replies: 5
    • Views: 694
    01-30-2016, 10:51 PM Go to last post
  26. Blower schematic

    Started by wall8427, 01-29-2016 11:45 PM
    • Replies: 10
    • Views: 1,013
    01-30-2016, 06:38 PM Go to last post
  27. LENNOX LGA UNIT ECONOMIZER ISSUE

    Started by Nic88, 01-15-2016 08:04 PM
    • Replies: 8
    • Views: 1,439
    01-30-2016, 02:27 PM Go to last post
  28. Daikin compressor failure

    Started by targetman, 01-27-2016 07:39 AM
    • Replies: 9
    • Views: 1,166
    01-30-2016, 08:09 AM Go to last post
  29. Trane chiller disabling compressor

    Started by John Pleckaitis, 01-29-2016 09:23 AM
    • Replies: 3
    • Views: 642
    01-30-2016, 12:07 AM Go to last post
  30. Carrier 06n check valve replacement

    Started by patpinet, 01-27-2016 08:55 PM
    • Replies: 1
    • Views: 566
    01-27-2016, 09:08 PM Go to last post
  31. Lennox LGA with CO2 Sensor issue

    Started by voivod, 01-23-2016 03:44 PM
    • Replies: 4
    • Views: 612
    01-27-2016, 03:29 PM Go to last post
  32. Frown Dri-steem GTS04-200 combustion blower problem

    Started by chuckp294, 01-22-2016 03:19 PM
    • Replies: 7
    • Views: 1,010
    01-27-2016, 02:15 PM Go to last post
  33. KC1000 replacement options?

    Started by Carl S, 01-26-2016 03:22 PM
    • Replies: 3
    • Views: 448
    01-26-2016, 11:52 PM Go to last post
  34. Confused McQuay WSHP

    Started by mathias, 12-09-2015 03:14 PM
    • Replies: 7
    • Views: 1,401
    01-26-2016, 06:53 PM Go to last post
  35. Carrier RTU 48PGN Heat Exchanger Delta-T?

    Started by alliedtech12887, 01-20-2016 12:33 PM
    • Replies: 9
    • Views: 1,127
    01-26-2016, 08:01 AM Go to last post
  36. service port on traulsen

    Started by dcmtwo, 01-25-2016 05:39 PM
    • Replies: 1
    • Views: 439
    01-25-2016, 05:55 PM Go to last post
  37. Goodway Boiler Descaling

    Started by Boiler Guy, 01-23-2016 06:39 PM
    • Replies: 3
    • Views: 643
    01-23-2016, 10:49 PM Go to last post
  38. Maxitrol A1014 High Voltage At Valve Terminals

    Started by shipwreck, 01-23-2016 01:24 PM
    • Replies: 2
    • Views: 557
    01-23-2016, 08:58 PM Go to last post
  39. Direct Solar air-conditioning

    Started by maxtronics, 01-19-2016 04:30 PM
    • Replies: 5
    • Views: 763
    01-22-2016, 08:56 PM Go to last post
  40. Union jobs in oklahoma

    Started by bigjoe2330, 01-21-2016 10:20 AM
    • Replies: 2
    • Views: 716
    01-22-2016, 04:24 PM Go to last post
  41. Requirements to change condenser fans for refrigerant retrofit

    Started by maxtronics, 01-19-2016 04:11 PM
    3 Pages
    1 2 3
    • Replies: 27
    • Views: 2,085
    01-22-2016, 08:04 AM Go to last post
  42. Ingersoll-Rand air drier alarm "SE"

    Started by mccann, 01-20-2016 08:01 AM
    • Replies: 1
    • Views: 434
    01-21-2016, 06:54 AM Go to last post
  43. DHWS low temp

    Started by DDCSD, 01-18-2016 11:53 PM
    2 Pages
    1 2
    • Replies: 14
    • Views: 1,389
    01-21-2016, 12:43 AM Go to last post
  44. honeywell 7800 code 35

    Started by hvac17011, 01-19-2016 08:23 PM
    • Replies: 1
    • Views: 507
    01-20-2016, 11:16 AM Go to last post
  45. 407c ??

    Started by boilerguy joed, 01-19-2016 05:30 PM
    • Replies: 5
    • Views: 831
    01-20-2016, 12:39 AM Go to last post
  46. Tecumseh AH5531E compressor on Friedrich Heat Pump

    Started by Nic88, 01-18-2016 08:32 PM
    • Replies: 1
    • Views: 655
    01-18-2016, 09:01 PM Go to last post
  47. what is it

    Started by boilerguy joed, 01-17-2016 09:07 PM
    • Replies: 8
    • Views: 1,160
    01-18-2016, 06:03 PM Go to last post
  48. Fresh air intake for spin class gym.

    Started by jakexl, 01-17-2016 03:57 PM
    • Replies: 11
    • Views: 1,300
    01-18-2016, 12:20 AM Go to last post
    • Replies: 6
    • Views: 1,145
    01-17-2016, 09:12 PM Go to last post
  49. Water Leak

    Started by BBeerme, 01-16-2016 01:48 PM
    • Replies: 11
    • Views: 1,305
    01-17-2016, 07:48 PM Go to last post

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