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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. X13 motor constant run!

    Started by CFLHVAC, 04-26-2013 11:15 PM
    2 Pages •
    1 2
    • Replies: 31
    • Views: 62,539
    ksefan
    12-13-2023, 10:17 AM Go to last post

  3. 3 phase voltage question

    Started by jmcgreevey, 08-11-2013 11:41 PM
    2 Pages •
    1 2
    • Replies: 26
    • Views: 44,468
    David Goodman
    05-31-2016, 11:32 PM Go to last post

  4. 1075rpm 1/2hp condenser fan motor bad

    Started by 02JeepKing, 06-16-2013 04:13 PM
    2 Pages •
    1 2
    • Replies: 24
    • Views: 45,870
    mathesonequip
    02-15-2014, 11:59 AM Go to last post

  5. Someone experienced in 3ph to single ph conversion ?

    Started by maximusvigor, 10-16-2016 07:24 AM
    2 Pages •
    1 2
    • Replies: 22
    • Views: 34,905
    HVAC_Marc
    10-24-2016, 11:27 PM Go to last post

  6. 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: 32,803
    IRBH
    08-01-2016, 01:29 AM Go to last post

  7. VFD For 2 Speed Motor

    Started by The Reaper, 02-28-2013 08:09 PM
    3 Attachment(s)
    • Replies: 18
    • Views: 23,571
    jbarron4
    07-26-2013, 02:38 PM Go to last post

  8. Question regarding ECM motors.

    Started by few2many, 05-02-2020 04:00 PM
    • Replies: 13
    • Views: 36,320
    Swf
    05-04-2021, 10:41 PM Go to last post

  9. Single phase and Three phase motors

    Started by RIEIO, 05-15-2013 12:36 PM
    • Replies: 13
    • Views: 39,102
    Bill B
    11-29-2015, 09:15 PM Go to last post

  10. Why use constant torque ECMs?

    Started by JimtheHVACguy, 07-24-2013 01:40 AM
    • Replies: 13
    • Views: 44,336
    ksefan
    09-25-2013, 10:25 AM Go to last post

  11. Motor for Elevator

    Started by ranitupe, 01-06-2019 11:52 PM
    1 Attachment(s)
    • Replies: 13
    • Views: 28,387
    taltik
    03-23-2022, 06:18 AM Go to last post

  12. How to hook up blower motor?

    Started by uncle18, 06-22-2013 12:38 PM
    • Replies: 12
    • Views: 12,235
    timebuilder
    06-23-2013, 07:37 AM Go to last post

  13. ABB and fault 16 !!!!!!!

    Started by texast, 06-30-2014 09:41 AM
    • Replies: 10
    • Views: 61,299
    camo37
    11-16-2016, 08:59 PM Go to last post

  14. Premium Efficient Motors

    Started by meby, 01-31-2013 04:41 PM
    • Replies: 9
    • Views: 34,058
    hvacnut
    03-23-2022, 03:17 PM Go to last post

  15. Combustion blower fault

    Started by mockingbird, 07-24-2016 07:42 PM
    • Replies: 8
    • Views: 29,321
    beenthere
    07-25-2016, 04:13 AM Go to last post

  16. Permanent Magnet DC Treadmill Motor

    Started by hurtinhvac, 02-18-2014 12:29 PM
    • Replies: 7
    • Views: 33,553
    IRBH
    02-23-2014, 01:18 PM Go to last post

  17. VFD's in rooftop units

    Started by Subcool215, 06-28-2019 08:21 AM
    • Replies: 7
    • Views: 29,932
    WAYNE3298
    06-28-2019, 09:39 PM Go to last post

  18. Rare Refrigeration Compressor Voltage Issue (Motor)

    Started by knishere2022, 04-19-2022 05:12 PM
    1 Attachment(s)
    • Replies: 6
    • Views: 26,576
    VTP99
    04-19-2022, 09:39 PM Go to last post

  19. PF Correction Capacitors

    Started by ascj, 07-28-2013 05:08 PM
    1 Attachment(s)
    • Replies: 6
    • Views: 11,907
    jbarron4
    07-31-2013, 09:04 AM Go to last post

  20. Condenser fan motor FLA

    Started by gallienus, 09-03-2020 10:09 PM
    • Replies: 6
    • Views: 28,694
    PowellSixO
    05-11-2021, 06:23 PM Go to last post

  21. Cooling tower fan minimum speed

    Started by RezAtDorsia, 05-26-2016 08:42 PM
    • Replies: 5
    • Views: 28,143
    RezAtDorsia
    05-29-2016, 10:30 PM Go to last post

  22. VFDs on ungrounded delta systems.

    Started by Randy S., 04-08-2013 09:18 PM
    1 Attachment(s)
    • Replies: 5
    • Views: 14,953
    jbarron4
    07-21-2013, 10:18 PM Go to last post

  23. Rheostat and hard start kits.

    Started by 2hot4you, 07-18-2016 10:41 AM
    • Replies: 5
    • Views: 29,376
    JehanDM
    01-13-2021, 07:51 PM Go to last post

  24. Soft starters

    Started by chander, 06-28-2018 09:50 PM
    • Replies: 4
    • Views: 26,883
    Palmer Hackle
    11-04-2018, 12:05 PM Go to last post

  25. GE ECM 2.3 Wiring

    Started by krips, 01-21-2022 06:08 PM
    • Replies: 3
    • Views: 22,413
    krips
    01-22-2022, 11:40 AM Go to last post

  26. Hermetic Compressor Motor Issue

    Started by Ryan Babros, 11-13-2018 08:37 AM
    • Replies: 3
    • Views: 25,354
    DavidDeBord
    11-13-2018, 07:03 PM Go to last post

  27. 11 (not 12) lead dual voltage motor

    Started by Arayt, 04-06-2016 09:19 PM
    • Replies: 3
    • Views: 31,014
    reeferrat
    02-23-2019, 08:04 PM Go to last post

  28. Equipment do not have or have mocp, mca

    Started by hhsting, 02-06-2021 08:02 PM
    • Replies: 3
    • Views: 26,828
    hhsting
    02-08-2021, 12:30 AM Go to last post

  29. Where to get HVAC fan motor rebuilt?

    Started by valvashon, 04-05-2018 01:35 PM
    • Replies: 3
    • Views: 29,100
    servicefitter
    04-07-2018, 05:47 PM Go to last post

  30. Progremming a VFD

    Started by LMSystems, 12-26-2013 03:40 PM
    • Replies: 2
    • Views: 28,345
    Deercooler
    08-09-2014, 10:39 PM Go to last post

  31. VFD Enclosures NEMA 3 or NEMA 4 rated enclosures

    Started by airprep, 03-14-2015 01:43 AM
    • Replies: 2
    • Views: 28,798
    airprep
    03-25-2015, 12:18 PM Go to last post

  32. Mystery Board

    Started by btucker62, 04-28-2013 11:23 AM
    • Replies: 2
    • Views: 6,255
    btucker62
    04-28-2013, 05:20 PM Go to last post

  33. Johnson Controls VSD Series II Micro Drive Issue

    Started by The Reaper, 09-24-2018 06:46 PM
    • Replies: 2
    • Views: 25,263
    The Reaper
    09-25-2018, 05:16 AM Go to last post

  34. Time delay timers explained.

    Started by anthonyac1, 03-31-2018 03:46 PM
    1 Attachment(s)
    • Replies: 2
    • Views: 25,395
    anthonyac1
    04-04-2018, 07:43 PM Go to last post

  35. Reversing Motor with Drum Switch

    Started by VAV616, 03-20-2013 01:59 AM
    motor control, switch 3 Attachment(s)
    • Replies: 2
    • Views: 11,842
    RosaJ039
    09-04-2013, 08:31 PM Go to last post

  36. Finding a motor?

    Started by dingo707, 06-20-2017 07:38 PM
    • Replies: 2
    • Views: 25,133
    Supa-Heat
    06-20-2017, 11:17 PM Go to last post

  37. Question on a 460V, 3 phase 50hertz pump motor

    Started by seathop, 10-10-2013 09:58 PM
    • Replies: 2
    • Views: 28,777
    genman
    12-15-2013, 04:19 PM Go to last post

  38. VFD on side-grounded delta

    Started by bluke1, 12-17-2014 07:54 PM
    • Replies: 2
    • Views: 28,606
    jraef
    02-08-2015, 12:02 PM Go to last post

  39. GE 5KSP39FGW452S Condenser Fan Motor

    Started by Tetracomm, 03-17-2013 11:44 AM
    • Replies: 2
    • Views: 6,893
    timebuilder
    03-19-2013, 05:25 PM Go to last post

  40. Hawkeye 458

    Started by blazey10, 05-02-2013 09:59 AM
    1 Attachment(s)
    • Replies: 2
    • Views: 6,704
    blazey10
    05-12-2013, 10:18 AM Go to last post

  41. Counter-Rotating Fan Motor

    Started by ilostmydrink, 12-28-2014 05:21 PM
    • Replies: 1
    • Views: 27,559
    buford
    03-07-2015, 06:29 PM Go to last post
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