Results 1 to 12 of 12

Thread: Running a commercial lever machine on gas only

  1. #1
    Senior Member skydragondave's Avatar
    Join Date
    Apr 2010
    Posts
    105

    Running a commercial lever machine on gas only

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    Can this be done? I've got a Brasilia Antonella 2gp lever machine with gas kit and have found the gas kit to be extremely sluggish, it takes over an hour to get up to 1.5 bar and needed two purges to stabilize. Clearly the gas kit is undersized or defective, but not too sure how to overcome this. My guess is that the gas kit is simply meant to augment the electric heating element and speed recovery and warmup, but this machine is to be used in a mobile setup where power isn't available. Is it possible to run a commercial gas lever machine exclusively on gas while still producing good shots? Here's a photo of it. Thanks for any help and advice.
    Attached Images Attached Images

  2. #2
    Senior Member
    Join Date
    Mar 2012
    Posts
    1,275
    Have you had the gas system checked to see if its working properly ?
    It sounds as if the burner is stuck on low fire and never goes to full burn state.
    There are normally adjustments that can be made to improve the burner output.
    What is the boiler capacity ?, and what is the burner rating ?

  3. #3
    Senior Member skydragondave's Avatar
    Join Date
    Apr 2010
    Posts
    105
    Thanks for the reply.
    You may well be right about the burn rate, the electric portion of the machine ran it up to proper pressure and kicked off at 1.3 bar, but at 1.6 bar the burner never changed its flame rate. If I had to guess boiler capacity, it's the same size as my two-group VFA-Expres which is 11 litres. Burner rating unfortunately isn't marked anywhere. I don't have a gas guy to check this out, it's up to me. I'm licensed to work on industrial truck propane fuel systems, so I am familiar with propane systems, I just have to learn how this one works.
    Regards

  4. #4
    Senior Member
    Join Date
    Mar 2012
    Posts
    1,275
    Quote Originally Posted by skydragondave View Post
    ?.....this machine is to be used in a mobile setup where power isn't available. .
    What gas are you running it on ?
    Do you know what gas it was originally set up for ?...butane, propane, natural, ?

  5. #5
    Senior Member
    Join Date
    Feb 2013
    Posts
    280
    Quote Originally Posted by skydragondave View Post
    My guess is that the gas kit is simply meant to augment the electric heating element and speed recovery and warmup, but this machine is to be used in a mobile setup where power isn't available.
    Running on gas only would require a manual boiler fill lever - is there one?

    If so and you're now running it LPG I'd look at the pressure regulator maximum setting.
    Or if you're running it on natural gas, the jet could be for LPG which would make heating roughly 2.5 times as slow.
    Last edited by simonko; 30th April 2013 at 09:07 AM.

  6. #6
    Senior Member skydragondave's Avatar
    Join Date
    Apr 2010
    Posts
    105
    Hi guys,
    I'm trying to run it on propane. Anyone's guess what it was meant for originally but probably either propane or natural gas. It has a manual fill "button" under the driptray. There's not much info on these machines out there and the machine itself isn't helping much - it has a date stamp on the boiler of May '93, it has CMA/Astoria groups, and was probably made by Brasilia for a distributor to sell under their own name. Thanks again for your help - any thoughts are appreciated. Cheers

  7. #7
    Senior Member
    Join Date
    Nov 2010
    Posts
    369
    how is the size of the flame controlled?

    is there some sort of thermostat arrangement?

    is it posibal that it is just in the pilot light position for the burner?

    I would expect the flame to change size as the heating requirements change.

  8. #8
    Senior Member skydragondave's Avatar
    Join Date
    Apr 2010
    Posts
    105
    Hi Don,
    These are the very questions I am trying to answer. Thanks

  9. #9
    Senior Member
    Join Date
    Apr 2008
    Posts
    777
    the machine should definitely be able to run of gas only. If the burner was designed for LPG it probably won't work correctly with natural gas and vice-versa- so you need to find that out if you can.

  10. #10
    TC
    TC is offline
    .
    Join Date
    Oct 2004
    Location
    Melbourne
    Posts
    14,665
    Hi Dave,

    Sounds like whatever it is, it has not been ued for a long time (if ever).

    This is a task for a combustion engineer (b type gas tech). My advice is to have it checked for your safety and that of your clients.

    In Victoria, machines of this type would require certification for a coffee cart for example. Venting of leaks and a whole heap of other factors would need to be considered.

    As always, best to do the right thing rather than lick your wounds- or burns...

    Chris

  11. #11
    Senior Member skydragondave's Avatar
    Join Date
    Apr 2010
    Posts
    105
    Thanks for the replies,
    I ended up removing this system entirely and replacing it with a current Astoria gas burner kit. Once installed and adjusted, all that was required was a field approval from a certified gas technician. It is now in service. Regards

  12. #12
    Junior Member
    Join Date
    Jul 2013
    Location
    san francisco ca
    Posts
    3
    back in the 50's/ 60's most commercial machines in north america were run solely on gas. one of my machines, a 1954 gaggia 3gr was used that way in canada.



Similar Threads

  1. Running Commercial Machine from water tank
    By cafecolumn in forum Brewing Equipment - Extreme Machines ($3000+)
    Replies: 10
    Last Post: 1st October 2009, 06:29 AM
  2. Cost of running a commercial machine 24/7
    By lennier in forum Brewing Equipment (non-machine specific)
    Replies: 26
    Last Post: 6th August 2006, 10:35 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
  •