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Giotto Pressurestat
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Discussions > Espresso > Machines > Giotto...  
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PowerPro64
Senior Member
PowerPro64
Joined: 7 Jul 2003
Posts: 48
Location: West Point, NY
Expertise: I live coffee

Espresso: ECM Giotto Premium
Grinder: Mazzer Mini Electronic
Vac Pot: nope
Drip: Bonjour Press Pot
Roaster: FR+8
Posted Thu Aug 26, 2004, 12:45pm
Subject: Giotto Pressurestat
 

Hello!  Has anyone tinkered with the Giotto pressurestat.  If so, will you please give me some directions.  In fact, could you tell me what it is based on this picture?  I think its the big brass thing, but I'm not sure.  Thanks!

John

PowerPro64: Pressurestat (Medium).JPG
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hamm
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hamm
Joined: 22 May 2003
Posts: 530
Location: Kettering, Ohio
Expertise: I live coffee

Espresso: Alex Duetto (1st gen)
Grinder: Mazzer Mini
Vac Pot: I'm not that kind of guy...
Drip: From the faucet occasionally
Roaster: I buy from several
Posted Thu Aug 26, 2004, 12:55pm
Subject: Re: Giotto Pressurestat
 

I think the brass part you're referring to is actually a boiler pressure relief valve. If the pressure goes up too high, it will pop up and spray steam all over the inside of the machine.  

I may be wrong about that because the smaller nut to the left of the brass part looks a lot like the same thing.

The pressurestat is most likely the black cylindrical part on the right side of the pic that has wires plugged into it.

Hope it helps to some degree.

Hamm
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cafewest_tech
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Joined: 22 Aug 2003
Posts: 270
Location: Medford
Expertise: Professional

Posted Thu Aug 26, 2004, 4:20pm
Subject: Re: Giotto Pressurestat
 

Hi  PowerPro64

  Hamm is correct.  The black plastic top like thing with the screw in the center and the wires coming off the microswitch is the pressurestat.
The tall brass thing is the pressure relief valve, and the silver hex nut with the brass post is the vacuum breaker.  The vacuum breaker pops up when the boiler starts to make steam and drops when,the boiler cools down to prevent a vacuum in the boiler.

Jerry
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Corsican
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Corsican
Joined: 30 Nov 2003
Posts: 109
Location: San Francisco
Expertise: I live coffee

Espresso: ECM Cellini Premium
Grinder: Mazzer Mini
Drip: Melitta Ceramic Cone
Posted Thu Aug 26, 2004, 9:25pm
Subject: Re: Giotto Pressurestat
 

Just remove the black cap on the right side of your picture. Underneath you will finfd the adjustment screw. If you need to adjust do in very small turns. My factory settings were at 1.4 and since I have lowered it to 1.3 and I feel that the shots taste better and I did not loose any steaming power. My machine cycles down to 1.0 and never below unless I steam quite a bit of milk.

 
Life is a one way trip, so be sure to enjoy every second of your journey !!!!!!
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harbor_pirate
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harbor_pirate
Joined: 19 Dec 2001
Posts: 47
Location: Yulee, FL
Expertise: I live coffee

Espresso: Señor Giotto by ECM aka The...
Grinder: Mazzer Mini for the office,...
Vac Pot: Farberware Robot x2, Yama...
Drip: Technivorm KBT741 , Keurig...
Roaster: WB MK1 x 2
Posted Fri Jun 22, 2012, 8:10am
Subject: Re: Giotto Pressurestat
 

Glad I found this and other related threads.  MY Giotto is TEN year's old and I believe I've started encountering issues with the P-Stat.  A Phonecon with Service at Jaguar Coffee based out of Spring Hill. FL pointed me in that direction.  Being in the Jacksonville, FL area leaves me kinda without a parachute from a service/repair standpoint and if the piping to the p-stat ain't clogged and I can't manage to replace it on my own, my final option is Fontana Coffee almost 3 hours SOUTH of me.  Hoping to NOT have to turn it into a road trip.

 
Siempre buscando el buen café!
HP sends
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stefano65
Senior Member
stefano65
Joined: 30 Oct 2004
Posts: 1,415
Location: Eugene OR
Expertise: Professional

Espresso: Vibiemme,Elektra,
Grinder: Vario,Macap,
Vac Pot: not
Drip: not
Roaster: not
Posted Fri Jun 22, 2012, 8:48am
Subject: Re: Giotto Pressurestat
 

The pressurestat pictured (far right) is a MATER normally they do not have any cover on the adjustment screw there is a screw with a + and _ on it
just small turn 1/8 let some steam out let the pstat do couple of cycles and re-adjust if necessary

 
Stefano Cremonesi
info@espressocare.com
www.espressocare.com
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