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Forum: Motors & Motor Controls

Discussions related to the design, installation, and maintenance of AC and DC motors, and their associated controls

  1. Normal Thread Normal Threads

  2. Condenser fan motor FLA

    Started by gallienus, 09-03-2020 10:09 PM
    • Replies: 6
    • Views: 2,470
    05-11-2021, 06:23 PM Go to last post
  3. Question regarding ECM motors.

    Started by few2many, 05-02-2020 04:00 PM
    • Replies: 13
    • Views: 8,638
    05-04-2021, 10:41 PM Go to last post
  4. Equipment do not have or have mocp, mca

    Started by hhsting, 02-06-2021 08:02 PM
    • Replies: 3
    • Views: 2,614
    02-08-2021, 12:30 AM Go to last post
  5. Rheostat and hard start kits.

    Started by 2hot4you, 07-18-2016 10:41 AM
    • Replies: 5
    • Views: 7,072
    01-13-2021, 07:51 PM Go to last post
  6. X13 motor constant run!

    Started by CFLHVAC, 04-26-2013 11:15 PM
    2 Pages
    1 2
    • Replies: 28
    • Views: 26,262
    12-23-2020, 05:36 PM Go to last post
  7. ABB ?

    Started by gazoo, 10-29-2020 04:27 PM
    • Replies: 1
    • Views: 1,616
    10-29-2020, 06:10 PM Go to last post
  8. Compressor Inverters

    Started by GSHPP, 12-28-2019 06:13 AM
    • Replies: 1
    • Views: 3,381
    12-28-2019, 06:22 AM Go to last post
  9. VFD's in rooftop units

    Started by Subcool215, 06-28-2019 08:21 AM
    • Replies: 7
    • Views: 7,086
    06-28-2019, 09:39 PM Go to last post
  10. 11 (not 12) lead dual voltage motor

    Started by Arayt, 04-06-2016 09:19 PM
    • Replies: 3
    • Views: 10,141
    02-23-2019, 08:04 PM Go to last post
  11. Motor for Elevator

    Started by ranitupe, 01-06-2019 11:52 PM
    • Replies: 12
    • Views: 6,791
    01-17-2019, 12:13 AM Go to last post
  12. Hermetic Compressor Motor Issue

    Started by Ryan Babros, 11-13-2018 08:37 AM
    • Replies: 3
    • Views: 4,685
    11-13-2018, 07:03 PM Go to last post
  13. Soft starters

    Started by chander, 06-28-2018 09:50 PM
    • Replies: 4
    • Views: 6,034
    11-04-2018, 12:05 PM Go to last post
    • Replies: 2
    • Views: 4,683
    09-25-2018, 05:16 AM Go to last post
  14. Where to get HVAC fan motor rebuilt?

    Started by valvashon, 04-05-2018 01:35 PM
    • Replies: 3
    • Views: 6,226
    04-07-2018, 05:47 PM Go to last post
  15. Time delay timers explained.

    Started by anthonyac1, 03-31-2018 03:46 PM
    • Replies: 2
    • Views: 4,146
    04-04-2018, 07:43 PM Go to last post
  16. Finding a motor?

    Started by dingo707, 06-20-2017 07:38 PM
    • Replies: 2
    • Views: 4,813
    06-20-2017, 11:17 PM Go to last post
  17. ABB and fault 16 !!!!!!!

    Started by texast, 06-30-2014 09:41 AM
    • Replies: 10
    • Views: 28,807
    11-16-2016, 08:59 PM Go to last post
  18. Someone experienced in 3ph to single ph conversion ?

    Started by maximusvigor, 10-16-2016 07:24 AM
    2 Pages
    1 2
    • Replies: 22
    • Views: 9,027
    10-24-2016, 11:27 PM Go to last post
  19. Have you ecer experienced a motor do this?

    Started by Ricky Dale, 05-26-2016 06:27 PM
    2 Pages
    1 2
    • Replies: 20
    • Views: 9,461
    08-01-2016, 01:29 AM Go to last post
  20. Fan cycling switch wire short.

    Started by Clawed worm, 07-25-2016 10:28 PM
    • Replies: 0
    • Views: 5,403
    07-25-2016, 10:28 PM Go to last post
  21. Combustion blower fault

    Started by mockingbird, 07-24-2016 07:42 PM
    • Replies: 8
    • Views: 7,087
    07-25-2016, 04:13 AM Go to last post
  22. 3 phase voltage question

    Started by jmcgreevey, 08-11-2013 11:41 PM
    2 Pages
    1 2
    • Replies: 26
    • Views: 18,872
    05-31-2016, 11:32 PM Go to last post
  23. Cooling tower fan minimum speed

    Started by RezAtDorsia, 05-26-2016 08:42 PM
    • Replies: 5
    • Views: 7,006
    05-29-2016, 10:30 PM Go to last post
  24. Yaskawa z1000 drive

    Started by AJS HVAC, 02-29-2016 01:43 PM
    • Replies: 1
    • Views: 7,274
    02-29-2016, 05:36 PM Go to last post
  25. Single phase and Three phase motors

    Started by RIEIO, 05-15-2013 12:36 PM
    • Replies: 13
    • Views: 17,769
    11-29-2015, 09:15 PM Go to last post
  26. Premium Efficient Motors

    Started by meby, 01-31-2013 04:41 PM
    • Replies: 7
    • Views: 11,198
    10-23-2015, 12:46 PM Go to last post
  27. Motor control issues

    Started by alexanderlev74, 09-02-2015 09:59 PM
    • Replies: 0
    • Views: 7,767
    09-02-2015, 09:59 PM Go to last post
    • Replies: 1
    • Views: 6,600
    08-21-2015, 08:43 AM Go to last post
  28. VFD Enclosures NEMA 3 or NEMA 4 rated enclosures

    Started by airprep, 03-14-2015 01:43 AM
    • Replies: 2
    • Views: 7,442
    03-25-2015, 12:18 PM Go to last post
  29. Counter-Rotating Fan Motor

    Started by ilostmydrink, 12-28-2014 05:21 PM
    • Replies: 1
    • Views: 7,062
    03-07-2015, 06:29 PM Go to last post
  30. VFD on side-grounded delta

    Started by bluke1, 12-17-2014 07:54 PM
    • Replies: 2
    • Views: 7,313
    02-08-2015, 12:02 PM Go to last post
  31. Progremming a VFD

    Started by LMSystems, 12-26-2013 03:40 PM
    • Replies: 2
    • Views: 7,699
    08-09-2014, 10:39 PM Go to last post
  32. Permanent Magnet DC Treadmill Motor

    Started by hurtinhvac, 02-18-2014 12:29 PM
    • Replies: 7
    • Views: 11,396
    02-23-2014, 01:18 PM Go to last post
  33. 1075rpm 1/2hp condenser fan motor bad

    Started by 02JeepKing, 06-16-2013 04:13 PM
    2 Pages
    1 2
    • Replies: 24
    • Views: 18,907
    02-15-2014, 11:59 AM Go to last post
  34. ecm motors can the motor its self be replaced?

    Started by Geo Joe, 01-19-2014 06:59 PM
    • Replies: 1
    • Views: 7,331
    01-19-2014, 08:03 PM Go to last post
  35. Question on a 460V, 3 phase 50hertz pump motor

    Started by seathop, 10-10-2013 09:58 PM
    • Replies: 2
    • Views: 7,788
    12-15-2013, 04:19 PM Go to last post
  36. Why use constant torque ECMs?

    Started by JimtheHVACguy, 07-24-2013 01:40 AM
    • Replies: 13
    • Views: 31,940
    09-25-2013, 10:25 AM Go to last post
  37. Reversing Motor with Drum Switch

    Started by VAV616, 03-20-2013 01:59 AM
    • Replies: 2
    • Views: 9,272
    09-04-2013, 08:31 PM Go to last post
  38. PF Correction Capacitors

    Started by ascj, 07-28-2013 05:08 PM
    • Replies: 6
    • Views: 9,209
    07-31-2013, 09:04 AM Go to last post
  39. VFD For 2 Speed Motor

    Started by The Reaper, 02-28-2013 08:09 PM
    • Replies: 18
    • Views: 19,745
    07-26-2013, 02:38 PM Go to last post

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