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New HX machine - boiler pressure too high?

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  • #31
    Re: New HX machine - boiler pressure too high?

    Wow!

    That HX sits high in the Boiler. Doubt it is immersed in water at all so must rely totally on transference via Steam. Such being the case, water level wont make much (if any) difference. Still reckon you need to find a reputable, highly regarded technician in your locale to suss everything out properly and adjust/rectify what ever needs doing....

    Mal.

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    • #32
      Re: New HX machine - boiler pressure too high?

      Originally posted by 25080C000D610 link=1256380339/30#30 date=1263050488
      Still reckon you need to find a reputable, highly regarded technician in your locale to suss everything out properly and adjust/rectify what ever needs doing....
      Theres no-one in my direct area who can help, but I would have thought there should be someone in Perth who can offer the kind of services that the east coast people enjoy - someone knowedgeable enough to have a look and pinpoint where this machine could be improved. The guys at Five Senses sell Isomacs and could help with things like scace testing, but it seems they havent done any basic customisation of the HX machines to improve their performance.
      They seem more into major customisation - theres a blog on their website detailing their custom Mondiale. It is now a PIDd dual boiler machine with a Synesso Cyncra group. That seems like the perfect solution, but when I spoke to them they estimated at somewhere around $3k to modify a standard Mondiale they way theyve done it. They said theyve got a waiting list of people who are interested in having it done to their machines if they decide to offer it.
      so as it stands I might do a ring-around to see if I can find anyone, otherwise if I start with a temperature monitoring device of some sort I can probably live with the machine as it is. The coffee is very good, and the steam performance is ok. Ive thought about buying another steam tip and seeing how it goes with the holes drilled out a bit bigger. if it doesnt work then Ill just put the original one back on...

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      • #33
        Re: New HX machine - boiler pressure too high?

        "Hazbean do you know if your machine has any restrictor installed?
        also how do you find the steaming performance?"

        I dont know if there is a restrictor -- AFAIK the machine is as
        supplied by the distributor. Ill find out when I get it serviced.

        We dont have much need for steaming any more, so dont use it very
        often. When we first got the machine, the steam pressure was
        overwhelming for our small amounts so my wife fashioned a couple
        of "cotter pins" from ss jewellers wire and stuck them into the two
        holes of the steam wand as a restrictor. Yesterday as a test I
        took 250ml of cold water at 5C and "textured" it (nice whirlpool
        anyway) stopping at 65C (measured with my TC). This took
        50 seconds. Would have been a lot less without the pins, will
        do another test without them when I can.

        Can the distributor offer any suggestions for service?

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        • #34
          Re: New HX machine - boiler pressure too high?

          had a significant "penny drop" this week. I believe the reason that the cooling flush was greatly reduced the day I installed the restrictor was my air conditioning. hadnt really paid enough attention before to when it did or didnt require a longer flush, I was just confused as to why it sometimes seemed to require no flush, and other times needed the same length flush as it did before installing the restrictor. Its no wonder I had trouble getting consistent results...

          I received my digital thermometer from Eric Svendson this week. I noticed that when the air-con is on (in the evenings after work), the group head temp never gets much above 91*C, while in the mornings (and any other time the a/c is off)its up to 99*C within about 45 minutes after startup.
          Im now wondering if a 91*C group temp is too cool. is it?

          Im still working out how to use the thermometer properly - since it supposedly reads a few deg higher than the puck temp - need to experiment a bit more to work out how the different temps it reports relate to taste...

          Geoff

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          • #35
            Re: New HX machine - boiler pressure too high?

            Do you have pics?

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