Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.

Burning Up A VXT-24 For Science

Gordo
Gordo Member Posts: 857
in Strictly Steam
In the video below, we send 120 volts into a circuit designed for 24 volts.
The expected result happens.
See you on the other side...

https://youtu.be/0OCObiah0cw

We were able to replace the resistors and get the board working again.

https://youtu.be/6XfitcnYO-4

All this goes to show that most of the circuitry of the VXT-24 can survive an over voltage
and it is unlikely that a mere power outage would damage a VXT-24 and cause it to fail.
All Steamed Up, Inc.
"Reducing our country's energy consumption, one system at a time"
Steam, Vapor & Hot-Water Heating Specialists
Oil & Gas Burner Service
Baltimore, MD (USA) and consulting anywhere.
https://heatinghelp.com/find-a-contractor/detail/all-steamed-up-inc
109A_5PC7060STEVEusaPACanucker

Comments

  • 109A_5
    109A_5 Member Posts: 1,672
    Hello @Gordo,

    I enjoy all your videos, please keep them coming !!!

    National - U.S. Gas Boiler 45+ Years Old
    Steam 300 SQ. FT. - EDR 347
    One Pipe System
    Gordo
  • JUGHNE
    JUGHNE Member Posts: 11,279
    Gordo, great show, as always.

    I could smell that smoke in my office as I watched the burn. ;)

    Was the coil ever energized during the test burn?
    GordoCLamb
  • Gordo
    Gordo Member Posts: 857
    edited September 2022
    @JUGHNE
    LOL Thank you for your kind words.
    I think the circuit energized the coil briefly (you can hear some buzzing when the 120 volts is first sent in), but it appears to not be on long long enough to trigger full power to the coil before the resistors burn out.
    I believe I set the delay to 30 seconds to increase the likelihood of maximum damage.

    All Steamed Up, Inc.
    "Reducing our country's energy consumption, one system at a time"
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
    Baltimore, MD (USA) and consulting anywhere.
    https://heatinghelp.com/find-a-contractor/detail/all-steamed-up-inc

Categories