General Notes for Coffee Preparation.
The porta
fi
lters
must remain heated since they are at the lowest position
of the group itself, and they are partially isolated from the
same due to the rubber gasket between them. This can
be accomplished by leaving the porta
fi
lters installed in
the machine when not in use. The porta
fi
lters may also
be actively heated. This procedure may be carried out
by activating one of the brew buttons to
fl
ush hot water
through the porta
fi
lter then turning off the water
fl
ow.
The size of the coffee granules is extremely important
in preparing a good cup of coffee, other than the type of
coffee blend used, quite obviously. The ideal grinding
can be determined by making various coffees using the
amount of ground coffee that you would normally use
for each cup (we recommend at least 6g). The best
grinding is that which allows coffee to
fl
ow out from the
fi
lter holder spouts neither too slowly, drop by drop, nor
too quickly. A general rule is that a double dose should
dispense approximately 60mL / 2
fl
uid oz. of espresso in
approximately 25 seconds. This time may be adjusted
by varing the corseness of the grind.
IMPORTANT
To improve the
fl
avor pro
fi
le of the
espresso, the temperature of the water in the coffee
boiler, and therefore of the groups, may eventually
be raised or lowered via the digital display (please
consult the Software Programming Guide for detailed
instructions).
5.
6.
7.
Key Features
Controlling the Brew Process Using Volumetric
Programming.
This espresso machine allows the
volumetric programming of each of the
fi
rst 4 buttons on
each group (numbered left to right). Please consult the
Software Programming Guide for further instructions.
Hot Water dispensing or “Tea Water”.
Hot water
may be dispensed from the Hot Water Wand on the
right side of the machine. This is accomplished by
pressing the hot water button (button #6). The amount
of water dispensed can be programmed via the digital
display. Please consult the Software Programming Guide
for programming instructions. The temperature of the
hot water may be adjusted slightly via the Hot Water
Adjusting Knob. This adjusting knob is hidden under
the right side panel assembly. The knob protrudes
slightly form the bottom of the side panel. To
fi
nd this
knob, look at the bottom edge of the right side panel.
The knob may be turned by sliding a
fi
nger under the
side panel from front to rear (to decrease temperature)
or from rear to front (to increase temperature).
Quick Keys
. The GS/3 has 4 Quick Keys to allow
the user to gain quick and easy access to important
parameters that may be changed frequently. Please
see the Software Programming Guide
Water and Drain Connection Kit.
The GS/3 comes with
a main water supply and waste drain connection kit. This
kit allows the GS/3 to be connected to the main water
supply and the main waste drain system. Instructions
for installing this kit are contained in the GS/3 Installation
Guide. The conversion kit contains the following items:
1.
2.
3.
4.
WARNING
!
!
Do not remove the portafilter when brewing hot
liquids. The Coffee Boiler contains water at elevated
temperature. Water temperature over
125
°
F / 52
°
C
can
cause severe burns instantly or death from scalding.
WARNING
!
!
The Coffee Boiler and Steam Boiler contain water at
elevated temperature. Water temperature over 125
°
F / 52
°
C
can cause severe burns instantly or death from scalding.
(Coffee Boiler 200
°
F / 93
°
C - Steam Boiler
260°
F / 125
°
C)
L309
L312
L037/2P G R
L325 / L326
WARNING
!
!
The expansion valve can discharge water as hot as
200
°
F / 93
°
C. Adequate protection for handling this
component is needed before atempting to adjust.
English
9
La Marzocco, S.r.l. Firenze, Italia
Key Features
Version 1.00
