Manual Pressure Switch Adjustment; Manual Brewing Pressure Adjustment; Setting The Temperature - La Pavoni LPSGEV02 Manual De Uso

automatically to the required level.
• During start-up: when the boiler
pressure gauge (5) indicates
approximately 0.5 bar, slowly open the
steam knob (7) to discharge any air
that may be contained in the boiler.
Wait until steam starts to come out of
the steam nozzle (10) before closing it.
• Wait for the machine to reach the
operating pressure of 1.1 – 1.3 bar,
checking the boiler pressure on the
pressure gauge (5).
• Insert the filter holder (12) into
the group head (11) and move the
group head lever (15). When water is
delivered, this allows the coffee circuit
exchangers to fill correctly.
• Move the group head control lever (15)
fully downwards to stop delivery.
• The machine is now ready for use.
• The machine is fitted with a
safety device that checks the
amount of water in the tank. The
green light (14) flashes to indicate
there is insufficient water in the
tank (2). If the water level is too
low, the device automatically
stops all machine functions.
• As the tank is filled, the warning
light switches off and the machine
is ready to dispense coffee again.
Coffee cannot be dispensed and
the boiler heating element is not
powered when the water tank
light (14) is flashing.
4–3. MANUAL PRESSURE SWITCH
ADJUSTMENT
(Only for LPSGEV01, LPSCOV01,
LPSGEV02 - LPSGIM01 models)
The function of the pressure switch
shown in the Figure is to keep the
pressure in the boiler constant, by
activating or deactivating the electric
heating element.
The pressure switch is adjusted when
the machine is tested (1.1 -1.3 bar).
If a different working pressure is
required, the operating range of the
pressure switch can be modified by
regulating the adjustment screw (Fig. 4).
If the pressure is reduced, the
temperature decreases and if the
pressure is increased the water
temperature increases.
The direction of adjustment is
indicated in the Figure and on the
pressure switch.
The pressure changes by
approximately 0.1 atm for each
complete turn of the screw.
4–4. MANUAL BREWING PRESSURE
ADJUSTMENT
The brewing pressure can be adjusted
manually by turning the pump pressure
adjustment screw (F) (Fig. 3).
To check the pressure during delivery:
• Insert the filter holder full of properly
ground, dosed and pressed coffee into
the group head.
• Move the group head control lever
(15) and read the pressure on the
pump pressure gauge (4). The correct
pressure is 8/9 bar.
• If the pressure indicated on the
pressure gauge is not correct, turn the
pump pressure adjustment screw (F)
(Fig. 3) clockwise to increase the pump
pressure or anticlockwise to decrease
the pump pressure.
• After regulating the pressure, check
the pump setting by delivering one or
more coffees.
4–5. SETTING THE TEMPERATURE
The LPSGEV02 model is fitted with a PID
temperature controller (27).
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