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Bezzera two group B2000,information needed,please...one and all.

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  • #16
    Bezzera two group B2000,information needed,please...one and all.

    Hi Mick,

    Your 2000 is one of 4 permutations of B2000 (semi-auto; auto: screen printed actuator, five pad, five vertical pad and yours - screen printed membrane).

    The membranes will have ribbon cable leads that will plug into a basic PCB (Gicar 9.5.14.51.02 - basic because your machine probably has a RL30 (or 40) water level controller. Bezzera use these on some of their older machines and the Domus Galatea, etc.

    So, good news- if the PCB is available it's inexpensive compared to others since it just transforms power and has an AV function, maybe a fuse to protect circuitry.

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    • #17
      I'd like to research the lack of volumetric counter - no flowmeter?

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      • #18
        The flowmeters should be hiding under the boiler - it's a pain to get to on some models. Gicar, 1/4" BSB, one will have an expansion valve system T ed in.

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        • #19
          Sprezzatura,
          Sorry,just now seen your reply,thanks for your support.
          No Gigar or similar ,anywhere,they are fairly obvious and there would be two of them,one for each group head.
          Behind the button membrane is the ribbon cable which connects to a pcb ,mounted immediately behind the membrane.
          Three seperate loom (total of 11 connectors) are disconnected from the missing dosing control/part (including water level probe connection).
          Image of access cover ,missing part.
          Here is the rear view of the membrane button control.(looks to me the pcb has onboard timer provision.
          Can't help admitting that I'm pretty excited that I may be able to get this beauty operational,all help and assistance is happily and gratefully accepted.
          cheers,
          Mick.
          Attached Files

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          • #20
            Bezzera two group B2000,information needed,please...one and all.

            Oh, hey! You've got a PCB integrated into the touch pad/membrane. So ... you won't find a PCB connected via ribbon cable to the keys (the circuitry is integrated into the group keypads) as you correctly noted.

            In the image with the side of the boiler on the top left should be your pressure stat - the wiring from the contactor will include a wire to the p/stat and the other wires go to the heating element via the p/stat. Those female spade connectors hanging in the wind there on the left and bottom left will plug into a RL30 or RL40 water level controller which will be connected to a steel bracket or plate below the p/stat.

            Perhaps 2 of the connectors will plug into the two water level probes on top of the boiler (Bezzera uses two).
            Last edited by sprezzatura; 6 October 2015, 12:10 AM.

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            • #21
              Bezzera two group B2000,information needed,please...one and all.

              So, as long as the PCBs work on group one and two, it looks like you just need a water level controller. I put one in a Domus Galatea a few months ago - I think it was about $280.00

              On the data plate (if legible) can you ascertain whether it's a B2000, B2000TP or B2000PM?

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              • #22
                "Unhappy Bezzera"

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                Hello sprezzatura,
                Thanks again for you ongoing support,some more images from different machine views.
                I cannot see any provision for connecting the two water level probe leads,perhaps onto the missing water level controller.
                Interesting that you recently replaced one on another bezzera,the cost is a factor for me which I must be mindful, this project is a personal ambition to set up machine in my work staff room,to compliment the existing equipment.
                sprezzature,may I ask what is the device(s) I need to fit out this machine in my attempt to make it well again?
                Therefore I'm now on the hunt for a suitable alternative water level controller,ideally a used /functional unit.
                Thanks again everyone for the wonderful understanding and support.
                Cheers,
                Mick.
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                • #23
                  Bezzera two group B2000,information needed,please...one and all.

                  Hi Mick, that's a clean machine! Looks great! Nice clean boiler.

                  The female spade terminals from each water level probe will plug into that missing water level controller.

                  An idea might be to ask Bezzera Australia if they have a dead machine with a suitable level controller? Otherwise, perhaps the CS community might have a dead machine with a RL30 sitting in it?

                  Unfortunately you have an unusable machine with out that level controller, Mick.

                  If I come across one I'll give you a shout.

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                  • #24
                    sprezzatura,
                    Thanks for that ,yes I'm underway cleaning up the internals,and I agree the insides are pretty clean when compared to some I've played with.Never had a machine without a water level controller,some were fairly dodgy but at least everything was there,I don't know the history despite speaking with the company who last serviced it (label).
                    As expected they (service) don't bother keeping records after about twelve months.
                    Presently doing what I can checking looms,connections and everything I can while trying to source a replacement RL30 (thanks for that).Internal boiler inspection next,have one of those cheap 8mm flexable camera things I can get into the boiler for a very thorough inspection,so far things are pretty happy,things are back on track with my enthusiasm again,though and that's good.
                    Cheers,
                    Mick

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                    • #25
                      My guess is service company stripped that controller out if it was good. If it was bad, in the bin.

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                      • #26
                        Dear Coffee lovers,
                        Hopefully without stepping on anyone's toes,a small request!

                        Dear Lovers of coffee and coffee making processes,
                        I'm in the progress of setting up another Bezzera coffee machine is our staff room at my work (school),things have gone well with a single group Bezzera and I also have a Boeme single group set up as well together with a small Saeco auto (for people who can't be bothered with the coffee handling.)
                        This latest Bezzera two group unit was acquired from the big E (online),at less the $100,which was fine,no group handles, though I have them now.
                        The problem is upon inspection for confirmation everything was good to go (before connection & energising)I noticed there was no water level controller!!!! What a bugger,well obviously was a problem for it's previous owner and the machines been made redundant and not bothered with (not sure why as they are great Italian engineering).
                        This leads me to the point of my posting,I need another controller and I can't justify a $300 replacement controller,just hoping some kind person has a functional /second hand unit laying about in the box of bits & pieces I could have ?
                        Happy to pay a reasonable postage cost + something for your efforts.
                        The Beoma will leave to it's owner soon and I wish to have the two operational Bezzera's and the small Saeco do the coffee thing for all our lovely and dedicated staff deserve.
                        What do you think ,do I have any hope "or am I dreaming".
                        Cheers,
                        Mick,
                        ps,I have successfully "rebirthed" five of these commercial units (single up to three group) and all are very successfully providing great coffee experiences to their users,I'm both aware and careful to avoid ending up with machines that have only potential as scrap metal.I'm fortunate to have a day job that allows an opportunity to leisurely transform obsolescence to great value with minimum $$$ input,something commercial businesses cannot .
                        Just need a little assistance from someone,like myself,who may have some gear about the place.
                        Perhaps I'm a dreamer albeit dreams that come to reality.


                        Attached Files

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                        • #27
                          Hello again,
                          After some sound advice,I'm intending to secure a new replacement water level controller for this machine,as was suggested "minimum cost of machine can and does justify that a new controller be fitted" and I'll put in a call to our sponsor people to see what's available,also need a couple of replacement group seals.
                          Once the controller is configured and happy I will continue detailing the adventures ,as they occur.
                          Cheers,
                          Mick.

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                          • #28
                            Hello again there,
                            This "re-equipping staff room appliances" ambition of mine is quickly becoming one of consolingly myself with a spare parts package,rather than setting up the operational machine!
                            Australian distribution of Bezzera aren't in a hurry to assist,possibly have no stock,have communicated with Luca Bezzera (Italy)and he is yet to respond with positives!(it's difficult to go much higher then Luca).
                            Calling all users (ex or otherwise) who may have possibly access to suitable and operational controllers ,which may be potentially available,
                            to please step forward.
                            Assistance would be very appreciated,hear from you soon.
                            Cheers,
                            Mick

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                            • #29
                              G'day Mick

                              I just found / read this thread of woes.

                              Not likely, however Bo-ema used a lot of Italian bits so they are worth a phone call. I found them in Sydney a few years back - I needed some info on my RR45, a friend had a dead 2 group - fixed when I went through the connectors after a manual dropped in. At least they were helpful.

                              More importantly: that machine is a 16A (your label) and needs a 20A plug or you have just voided your school's insurance... Given the insurer's will find any loophole, I would recommend you also fit one (or at least a 15A with 20A fuse) to your house / workshop. Oh, and check the wiring - my La Pavoni 2 group melted the old wires at one house after a shonky "fully qualified electrician" fitted a 20A plug over the existing spaghetti wiring. Bloody lucky it didn't torch the place, but I have worked with electronics for years so I smelt it in time. Wonderful, that sweet burnt wire smell, especially when you cannot figure out where it is coming from...

                              FYI, my La Pav actually pulls exactly 15A at 250V at startup for well over 20 minutes, however now WA Voltage is 240V so it now needs a 20A connection. Be a shame to get your Bezzera going and repeat my bad.

                              TampIt

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                              • #30
                                Hello everyone and TampIt,
                                Many thanks for the concerns and support,most appreciated.One part of my role is to ensure any and all electrical appliances that are situated anywhere on the campus comply with all relevant regulations and especially where 1200 young students are involved,the risk is great enough when everything complies let alone if there are dodgy appliances in the mix!
                                Anyway,back to the machine in question,things are at a bit of a standstill there,the machine itself is all shiny (same colour) and functional,ready to be connected up electrically once the controller becomes available.
                                I'm currently researching ,that with the belief, other controllers are just as suitable afterall it's just a box of electronics that switches relays that activate solenoids/elements etc and I can't be bothered by it's ethnicity.
                                Please be aware that this project is one of donation and not profit making venture,all users of the staff room benefit.
                                New is my intention however,should that not be possible then functional/operational is the next best choice.
                                Anyone with knowledge as to suitable alternative are most welcome to contribute to this challenge,with most respect and appreciation.
                                Cheers,
                                Mick.

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