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Forum: AOP Commercial HVAC

FOR EQUIPMENT OWNERS ONLY Questions and discussions regarding Commercial Buildings

  1. Sticky Thread Sticky Threads

  2. Sticky Thread >>READ THIS FIRST<< NO DIY? Why NOT??

    Started by Dad, 10-31-2011 07:41 PM
    • Replies: 0
    • Views: 12,281
    10-31-2011, 07:41 PM Go to last post
    • Replies: 0
    • Views: 10,564
    10-31-2011, 07:37 PM Go to last post
  1. Normal Thread Normal Threads

  2. Question VFD PITA

    Started by WRKMAN, 06-20-2018 01:11 PM
    • Replies: 3
    • Views: 161
    Yesterday, 01:05 AM Go to last post
  3. Cooling towner as standalone unit?

    Started by PalmPre, 06-20-2018 10:43 AM
    • Replies: 12
    • Views: 265
    06-23-2018, 10:59 PM Go to last post
  4. Best way to check ac pressures on water cooled units?

    Started by Rusty Capacitor, 06-21-2018 07:21 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 289
    06-23-2018, 01:22 PM Go to last post
  5. Customer wants to install a "used" unit

    Started by tacosoup, 06-20-2018 10:29 AM
    • Replies: 5
    • Views: 215
    06-22-2018, 04:06 PM Go to last post
  6. Coleman BAUH-F048AB Fan Always On

    Started by rsw686, 06-20-2018 10:37 PM
    • Replies: 3
    • Views: 106
    06-22-2018, 09:22 AM Go to last post
  7. Trane Integration Help Request

    Started by Hank47808, 06-21-2018 01:47 PM
    • Replies: 0
    • Views: 70
    06-21-2018, 01:47 PM Go to last post
  8. Carrier 30RAP and new Main Base Board

    Started by bobbyg, 06-18-2018 11:16 AM
    • Replies: 3
    • Views: 163
    06-18-2018, 08:29 PM Go to last post
  9. New condenser/compressor unit not cold enough.

    Started by Wingchip, 06-10-2018 12:45 PM
    • Replies: 10
    • Views: 427
    06-18-2018, 12:42 PM Go to last post
  10. YORK AIR SCREW CHILLER...ALL COMPRESSORS OUT ON LOW SUCTION

    Started by HDog, 05-15-2018 12:12 AM
    2 Pages
    1 2
    • Replies: 21
    • Views: 1,056
    06-13-2018, 08:26 PM Go to last post
  11. FREEZER - Evap & Condenser sizing and options

    Started by Joe'Bronco, 06-11-2018 01:53 PM
    • Replies: 1
    • Views: 159
    06-11-2018, 09:44 PM Go to last post
  12. Ideal way to ventilate a pet shop

    Started by josh0322, 06-03-2018 02:43 PM
    2 Pages
    1 2
    • Replies: 22
    • Views: 535
    06-09-2018, 06:53 PM Go to last post
  13. Advice on how to determine chiller efficiency

    Started by Mr.Fikri, 06-06-2018 12:43 AM
    • Replies: 2
    • Views: 205
    06-09-2018, 12:42 PM Go to last post
  14. Oil pump motor push ON relay TRANE CVHF

    Started by nungriano, 06-09-2018 03:33 AM
    • Replies: 1
    • Views: 155
    06-09-2018, 08:42 AM Go to last post
    • Replies: 4
    • Views: 261
    06-08-2018, 08:41 PM Go to last post
    • Replies: 0
    • Views: 130
    06-08-2018, 05:42 AM Go to last post
    • Replies: 2
    • Views: 147
    06-07-2018, 03:58 PM Go to last post
  15. Warehouse cooling and airflow

    Started by maverma, 05-21-2018 08:40 PM
    • Replies: 6
    • Views: 440
    05-31-2018, 11:37 PM Go to last post
  16. master bilt ice cream dipping cabinet help

    Started by Renee Kennedy, 05-28-2018 10:58 AM
    • Replies: 4
    • Views: 214
    05-31-2018, 11:31 PM Go to last post
  17. lennox rtu reason for running only 1 stage?

    Started by Maynardr6, 05-31-2018 12:11 AM
    • Replies: 3
    • Views: 234
    05-31-2018, 09:57 AM Go to last post
    • Replies: 12
    • Views: 285
    05-30-2018, 09:27 AM Go to last post
  18. Running ComfortView 3.0 on a VM

    Started by Matthias117, 05-29-2018 05:22 PM
    • Replies: 0
    • Views: 134
    05-29-2018, 05:22 PM Go to last post
  19. Supplementing passive air cooling with AC

    Started by ectoraige, 05-25-2018 07:47 AM
    • Replies: 1
    • Views: 314
    05-28-2018, 07:29 AM Go to last post
  20. Process Chiller Recommendation

    Started by AmericanLoco, 04-21-2018 11:52 AM
    • Replies: 4
    • Views: 664
    05-27-2018, 05:10 PM Go to last post
    • Replies: 1
    • Views: 235
    05-26-2018, 03:24 PM Go to last post
  21. Confused Modbus to BACnet Converter Protocol

    Started by Eyephone, 05-25-2018 02:01 AM
    hvac
    • Replies: 0
    • Views: 275
    05-25-2018, 02:01 AM Go to last post
  22. BAS Systems

    Started by kesselh, 05-16-2018 07:22 PM
    • Replies: 1
    • Views: 330
    05-24-2018, 05:13 AM Go to last post
  23. Evaporator & Compressor Positions

    Started by lord123, 05-22-2018 04:53 PM
    • Replies: 2
    • Views: 304
    05-24-2018, 05:07 AM Go to last post
    • Replies: 6
    • Views: 565
    05-13-2018, 08:02 PM Go to last post
  24. Modulators closing in school.

    Started by kirkb, 05-04-2018 09:26 AM
    • Replies: 8
    • Views: 571
    05-05-2018, 09:55 AM Go to last post
  25. Theory and practical application

    Started by IndustrialTech, 04-29-2018 10:26 AM
    • Replies: 2
    • Views: 550
    05-01-2018, 09:11 AM Go to last post
  26. Vacuum on daikin vrv III

    Started by michaelfw23, 04-29-2018 01:03 PM
    • Replies: 4
    • Views: 565
    05-01-2018, 08:24 AM Go to last post
  27. HVAC plant management

    Started by MaintMgr, 04-18-2018 07:50 PM
    • Replies: 8
    • Views: 979
    04-27-2018, 07:53 PM Go to last post
    • Replies: 3
    • Views: 743
    04-22-2018, 05:13 PM Go to last post
  28. York Tropical RTU 50Hz Freeze Up Issue

    Started by Hadi Had, 04-14-2018 12:55 AM
    • Replies: 5
    • Views: 635
    04-21-2018, 10:11 AM Go to last post
  29. Honeywell T775 M2048

    Started by SergeP, 04-20-2018 11:51 AM
    controller, honeywell controls
    • Replies: 0
    • Views: 294
    04-20-2018, 11:51 AM Go to last post
  30. carrier 30XA402 chiller

    Started by HichamBen, 04-18-2018 03:49 AM
    • Replies: 0
    • Views: 432
    04-18-2018, 03:49 AM Go to last post
    • Replies: 4
    • Views: 565
    04-14-2018, 07:20 PM Go to last post
  31. Carrier FIOP codes

    Started by klb311, 03-13-2018 11:24 AM
    • Replies: 5
    • Views: 708
    04-12-2018, 11:58 AM Go to last post
  32. FDECU

    Started by Seabee44, 04-11-2018 02:55 PM
    • Replies: 12
    • Views: 801
    04-12-2018, 04:49 AM Go to last post
  33. Pole Shed Heating, Cooling, and Air Exchange

    Started by bschultz, 04-10-2018 01:36 AM
    air exchanger, cooling, exhaust fans, geothermal, heat exchangers, heating, radiant hydronic in-floor pex heat
    • Replies: 3
    • Views: 549
    04-11-2018, 09:33 AM Go to last post
  34. Help Identifying Part

    Started by sammyb123, 04-08-2018 01:13 PM
    • Replies: 6
    • Views: 703
    04-10-2018, 10:03 PM Go to last post
  35. Danfoss Turbocor reliability

    Started by AmericanLoco, 04-10-2018 09:08 PM
    • Replies: 1
    • Views: 478
    04-10-2018, 09:37 PM Go to last post
  36. decoupler control

    Started by Eng Ali, 03-08-2018 07:03 AM
    hvac, hvac calculators, hvac design manual
    • Replies: 3
    • Views: 719
    04-10-2018, 11:03 AM Go to last post
  37. Calculation of duct an exhaust fan power

    Started by ouchen108, 03-27-2018 05:47 PM
    • Replies: 3
    • Views: 668
    04-07-2018, 07:07 AM Go to last post
  38. Confused 3 PH 2 Speed only runs backwards

    Started by JunoDog, 04-05-2018 03:12 PM
    • Replies: 2
    • Views: 605
    04-06-2018, 07:31 AM Go to last post
    • Replies: 2
    • Views: 648
    04-04-2018, 05:36 PM Go to last post
    • Replies: 2
    • Views: 648
    04-02-2018, 10:58 PM Go to last post
  39. TUTCO DB20087-2-1P heating element

    Started by valvashon, 03-20-2018 02:40 PM
    • Replies: 1
    • Views: 666
    04-02-2018, 03:06 PM Go to last post

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