Gaggia Deco User Manual

44
English
7.1 Pressure switch setting
The pressure switch indicated in the figure is designed to main-
tain the boiler pressure constant by energising or de-energising
the electric heating resistor.
This pressure switch is already set to 1.1÷1.3 bar during the
machine testing stage, but the pressure switch operating range
can be changed by turning the setting screw (U) if a specific
case requires a different working pressure: decreasing the
pressure produces a decrease in the temperature, vice versa,
increasing the pressure also increase the water temperature.
The setting direction is indicated in the figure and also on the
pressure switch itself. The pressure varies by approximately
0.1 atm. for every complete turn of the screw.
Warning! Disconnect the power supply before
performing this operation.
fig. 5
7.2 Pump pressure calibration
Position the filter holder filled with ground, dosed and pressed
coffee in the unit. Press the unit switch (MANUAL DECO)
or the control keyboard (DOSED DECO) (16) and read
the pressure indicated on the pump pressure gauge (10).
N.B. The correct pressure reading is 8/9 atm.
Turn the pump pressure adjusting screw (Z) if the pressure
read on the pressure gauge is incorrect, turn the screw
clockwise to increase the pump pressure, and anticlockwise
to decrease the pressure.
Check the pump calibration after the adjustment has been
completed by dispensing one or more doses of coffee.
Z = Pump pressure regulating screw
Warning!
The filter holder bowl may not be aligned (perpendi-
cular to the machine) when the machine is new, as
indicated in the next figure, however this does not
compromise the machine’s correct operation.
The bowl will gradually position itself in the correct
position after a short period of use.
A = Position of closed filter holder with new machine
B = Position of closed filter holder with the machine after a
short period of use.
fig. 6
fig. 7
7.3 Coffee filters supplied with machine
The appropriate filter is to be used as indicated below
depending on the quantity of coffee ground, to avoid the
leftover coffee powder remaining attached to the delivery
nozzle after the coffee has been completely dispensed.
20 mm
24,5 mm
24,5 mm
21 mm
NF08/002/B
1 coffee cup of 5.5 gr ÷ 6.6
coffee pod for 1 coffee
Barley coffee pod for 1 dose
NF08/004/B
1 coffee cup of 6 gr ÷ 7 gr
NF08/005/B
2 coffee cups of 12 gr ÷ 14
NF08/009/B
2 coffee cups of 12 gr ÷ 14
The filter can be identified by a letter
“C” impressed on the inside.
A
B
NOTE: Smaller thickness under-bowl gaskets (8.1 mm code
NG01/005), or larger thickness under-bowl gaskets (9 mm
code NG01/002) are available as an option compared to
the standard fitted gasket (8.5 mm code NG01/001/B).

Gaggia Deco Specifications

General

Brand	Gaggia
Model	Deco
Category	Coffee Maker
Language	English