Results 1 to 4 of 4
  1. #1
    Join Date
    Nov 2008
    Location
    Colorado
    Posts
    6

    JCI VA-7820 or 7830 (valve actuators)

    Has anyone had experience with these actuators failing because they indicate losing control signal? I have had several do this and the signal is always present.

  2. #2
    Join Date
    Mar 2006
    Posts
    3,641
    Blue capes and proper pid tuning save actuator lives.

  3. #3
    Join Date
    Mar 2011
    Location
    Manitoba, Canada
    Posts
    115
    I have had issues with other JCI actuators and the solution was to reset the 24Vac. The electronics in the actuator were "locking up" and there was a recall placed on the parts. This was a couple years ago on a M9216-HGA valve though. Could be going down the same path. If you have a relationship with the local branch try them and see if they now of a problem. Otherwise try Milwaukwee on the 800# and see if you can get somewhere.

  4. #4
    Join Date
    Nov 2008
    Location
    Colorado
    Posts
    6

    Talking

    Froz:
    You are correct in that the 24vac removal resets the actuator. But that does not bode well in an automatic control application. I was looking to see if your second part is true that possibly a manufacturing defect is out there since I have some actuators that do not exhibit this symptom.

    Freddy:

    I took the blue cape off and replaced it with a real superman suit. Glad to know that blue blood runs in your veins though. LOL:

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Comfortech Show Promo Image