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Posts posted by HamiltonStoneware

  1. Ok, yeah that makes sense about replacing the elements/wiring. Attached is a picture of the wiring of the 1997 kiln. There are a few components that I am not sure are depicted on the wiring diagrams sent from Alpine so I was having trouble piecing things together.

    Also when I talked to Joe from Alpine he stated:


    We noticed both name tags say 208v, 3 phase, although the amperage and kw stamped on the
    name tags do not jive with each other or our specifications.

    An EF-4, 208v, 3 phase, 28 amps, 10 kw
         EF-4, 208v, 1 phase, 48 amps, 10 kw
         EF-4, 220v, 3 phase, 24 amps, 10 kw
         EF-4, 220v, 1 phase, 45.5 amps, 10 kw

    So I am not sure if I am just "Lucky" to get a 18kw, or what is going on there...


  2. I have been looking around on the web for answers to this question and this seems to be the best place to try and see if anyone has experience with this.

    I got a great deal on a couple of Alpine EF-4 kilns recently ($200 for 2) and at the time knew that one was 208v 3 phase but thought one had been converted to 240v. Both kilns seem to be in great shape and so I figured that I could figure out how to convert the other 240v 1 phase... Both kilns were 208 3 phase...

    I have e-mailed back and forth with Joe from Alpine multiple times and have been able to get the wiring schematics for both the 208v 3 phase kilns as well as the 220v 1 phase and am asking for the 240v diagrams now. And Joe has confirmed that the conversion from 208 to 240 can be done. I was just wondering if anyone had worked with these EF-4 kilns before and if anyone had any advise on the conversion.  I have attached a few pictures of the kilns and the wiring diagrams I have received for reference. 

    Any idea's on where to start the conversion or sourcing of parts would be appreciated too.



    220v1ph.PDF 208v3ph.PDF

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