Gaggia Evolution XE Operating Instructions Manual page 36

ENGLISH
7.5 SPECIAL FUNCTIONS
It is possible to engage or deactivate certain
special functions such as PRE- INFUSION,
MIXED TEA and WASHING ALARM which
we shall describe below:
PRE-INFUSION
Our software permits measure configuration
so that the relative delivery of the COFFEE
measures through volumetric control is pre-
ceded by pre-infusion. Delivery of the coffee
measure after time 1 (ON) is suspended for
a time 2 (OFF) and is then resumed for the
completion of selection.
On pressing one of the volumetric control
measure keys, the normal delivery cycle is
preceded by a short timed water jet in order
to dampen the coffee pellets before actual
delivery stage.
This function ensures the optimum use of the
coffee pellets.
T1 KEY LED ON : PRE INFUSION :
T2 KEY LED ON : MIXED TEA:
To escape from this condition and return to
normal functions press key T5 again.
7.6 TEA DELIVERY
On pressing key T6 the corresponding sole-
noid valve is engaged thereby beginning hot
water delivery.
On START a timer is activated which interrupts
the water delivery on reaching the time set
during the programming stage.
The simultaneous delivery of tea or coffee is
possible.
It is possible to interrupt delivery function
in progress before the programmed time is
reached by pressing key T6 again used for
product delivery.
MIXED TEA (HOT WATER)
On the engagement of this function the water
delivered is mixed with cold water on entry in
the boiler thereby ensuring constant delivery
at a temperature of about 96°C.
If this function is not engaged water is delive-
red at a temperature of about 100°C and is
highly vaporized.
T1
T2
T3
ON
ON
T5
T6
ENGAGEMENT/DEACTIVA-
TION
Start the machine by pressing the main switch
keeping key T5 of unit 1 pressed and wait for
the led relative to key T5 to begin flashing.
Press keys T1-T2 and T3 in order to engage
or deactivate the PRE-INFUSION, MIXED TEA
functions.
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