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Need some help with my Brasilia Portofino 1gr - Page 3

Postby vemuli on Sun Oct 19, 2008 7:07 am

Here is the pic of that part I wrote before...Image
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Postby erics on Sun Oct 19, 2008 8:53 am

That is the thermosyphon restrictor orifice.

I have no experience with your machine but, based on other machines hydraulic circuitry, the orifice is placed in the upper hx feed line to the group at the "boiler end" of the line. The inverted mushroom side of your orifice mates with the "mushroom" shaped fitting soldered onto the end of the copper pipe.
Skål,

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Postby vemuli on Sun Oct 19, 2008 9:23 am

Thank you Eric...I was not sure about that before.




vm
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Postby beaver on Mon Nov 24, 2008 5:38 am

eastpresso wrote:Looks like you're doing good so far :)

Try to empty the boiler as much as possible before the next descaling run (on the cold machine loosen the hot water pipe on the lower right and drain the boiler from there, be careful not to damage the fitting! Do NOT apply excessive force).
Retighten the fitting, fill the boiler with descaling solution and repeat descaling until the water from the hot water tap is clear. When you refill the boiler try to measure how much water enters the boiler until the autofill stops (maybe the water level in the is too low and the autofill probe needs some adjusting) before you detach the wire and fill any further.

The 'boiler level meter' is the pressure gauge that should be idling somewhere around 0.9-1.1bar (the green area) if you have more than that you need to change the pressurestat setting. The boiler is filled with steam and hot water. Some sputtering and steam is normal when you open the tap but should lessen as you drain hot water from the boiler and cold water enters the boiler again.

When you work on the inside of your machine PLEASE UNPLUG the machine. Switching off is not good enough.

Hopefully someone else will jump in if I say something stupid - until then it's just your common sense and me :mrgreen:

Be careful.


Hi,

I have recently purchased a Portofino America (not sure of the age). I have written Brasilia for the Manual PDF but not received an answer yet. My problem is that I think the pressure idle is set too low. When you turn the machine on it hits 1 bar (I have 4.5 bar of water pressure going in) and then falls to between 0.5 and 0.7 bar. Can anyone tell me tell me where I can find the pressure stat setting?

Cheers

Angus
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Postby HB on Mon Nov 24, 2008 10:02 am

beaver wrote: Can anyone tell me tell me where I can find the pressure stat setting?


Based on this photo, yours has a Sirai pressurestat (black cover with yellow label in the upper-right corner). See How to adjust an espresso machine pressurestat for instructions.

Image
From Brasilia Portofino - Single Group
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