Results 1 to 6 of 6

Thread: Potential-equalizing connection Cimbali M27

  1. #1
    Member
    Join Date
    Feb 2007
    Location
    Portugal
    Posts
    34

    Potential-equalizing connection Cimbali M27

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    Hello,
    I just wonder, after installation of my machine if it is necessary to do this connection as explained in the manual! When I remove the black metal plate under the pan there are a lot of earth connections together! I suppose thats the right location to connect a wire! However it doesnt look like the picture shown on the installation page! Maybe JavaB, having almost the same machine can help me about this!
    Rodrigo

  2. #2
    Senior Member
    Join Date
    Jul 2006
    Posts
    3,498

    Re: Potential-equalizing connection Cimbali M27

    Rodrigo.....

    The common earth point is a chassis bolt to the left and at the rear of the electronics box. It is one of the bolts which secure the side cast panel to the base plate which runs across between the cast side panels. There is a large earth wire running from that point to a bolt on the side of the black metal box.... and several earth wires run from that point - to the transformer, the pump motor and quite a few other places....

    The incoming mains cable terminates - active and neutral - on the switch (as per the installation diagram) and the earth cable on the large chassis bolt.

  3. #3
    Member
    Join Date
    Feb 2007
    Location
    Portugal
    Posts
    34

    Re: Potential-equalizing connection Cimbali M27

    Thank you JavaB for the useful information! This weekend Ill look for the earth bolt you mention and connect it to the metal water pipes in my kitchen

  4. #4
    Senior Member robusto's Avatar
    Join Date
    Feb 2005
    Posts
    2,797

    Re: Potential-equalizing connection Cimbali M27

    Valimar, if your house is wired correctly, there is no need to connect the chassis to water pipes --- it should already be earthed through the green earth wire in the power cable.

    --Robusto

  5. #5
    Senior Member
    Join Date
    Jul 2006
    Posts
    3,498

    Re: Potential-equalizing connection Cimbali M27

    Valimar,

    As Robusto said above.

    In Australia and most European countries (Im not sure about Portugal where you live) there is also a earth lead with the active and neutral in the cable ..... so this earth lead (generally a green insulated wire or a green wire with a yellow stripe) is all that is required and this can be connected to the earth bolt in the machine.

    In some countries they only run active and neutral to appliances.... You then need to run the additional "protective" earth so that if something in the machine fails the chassis wont become active and deliver a nasty shock.

  6. #6
    Member
    Join Date
    Feb 2007
    Location
    Portugal
    Posts
    34

    Re: Potential-equalizing connection Cimbali M27

    Thanks for the additional observations! When the cimbali was installed in my former restaurant there was no equalizing connection, but following the instructions manual should be "absolutely necessary".
    In Portugal as well as in every country of the European Community all plug-sockets installed in bathrooms and kitchens have a green/yellow earth lead. Anyway an extra protection is not harmful...



Similar Threads

  1. New roaster,need help on lpg gas connection
    By alastair5180 in forum Home Roasting - Tips, Tricks, Ideas
    Replies: 2
    Last Post: 15th November 2009, 09:01 PM
  2. The Cuban connection
    By TEPIN in forum General Coffee Related...
    Replies: 1
    Last Post: 9th August 2009, 12:20 PM
  3. Coffee connection
    By Thundergod in forum General Coffee Related...
    Replies: 2
    Last Post: 9th August 2006, 09:10 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •