35
En
G
li
SH
5) Once the desired pressure has been set, stop serving water and close the side of the machine.
Note:
The suggested calibration of the pump to obtain proper serving is 9 bar.
5.3 Calibration of steam pressure in boiler
The steam pressure in the boiler is shown on the upper graduated scale of the pressure gauge
B
(figure 13).
After having calibrated the pressure switch, the pressure rises to the calibrated value. The steam pressure
on these models is changed by turning the adjusting screw
D
of the pressure switch (figure 14) located
inside the left side of the machine (viewed from the working area). To increase pressure, turn the adjust
-
ing screw counterclockwise. To decrease pressure, turn the screw clockwise. Read the set pressure on
the upper scale of the pressure gauge, and if necessary repeat the operation.
Figure 13
Figure 14
5.4 Adjustment of temperature of dispenser groups
In models NeW 105 (except for models NeW 105 DTC) the temperature can be adjusted for the serving of
espresso coffee without changing the internal pressure of the boiler. At the head of the serving group, there is
a valve (flow variator) that controls the flow of hot water coming from the exchangers. This valve is accessible
from the upper tub, by removing the plastic cup holding grille (figure 15). Four numbered notches are imprin
-
ted on the upper tub (
2
,
3
,
4
,
5
) for each serving group (figure 16). The valve is normally set to number
3
(this
is the default setting provided by LA SAN MARCO SPA). If you want to change the serving temperature, you
will need to use the valve (flow variator) of the group. To increase the temperature, turn the valve towards the
higher numbers. Contrarily, to decrease, turn the knob towards lower numbers.
5.5 Adjustment of temperature of hot water
Models NeW 105 e with 2/3/4 groups include a mixer that makes it possible to adjust the temperature of the
hot water for the preparation of infusions. The mixer can be calibrated by turning the adjustment screw, which
is accessed from the upper tub (figure 17). The mixer undergoes standard calibration by LA SAN MARCO
SPA. If you want to adjust the temperature of the hot water drawn, turn the screw clockwise. On the contrary,
to decrease the water temperature turn the screw counter-clockwise.
Note:
The mixer must be adjusted with the coffee machine running in normal operating conditions. The steam pres-
sure in the machine is 1.0 bar (standard value set by LA SAN MARCO SPA). If the steam pressure in the boiler
is modified (as described in the related paragraph), the mixer must be calibrated again.
D
Summary of Contents for NEW 105 3
Page 2: ...italiano USO E MANUTENZIONE SERIE NEW 105 E Istruzioni Originali ...
Page 24: ...23 English USE AND MAINTENANCE SERIES NEW 105 E Translation of the original instructions ...
Page 68: ...67 deutsch BEDIENUNG UND WARTUNG SERIE NEW 105 E Übersetzung der Original Anweisungen ...
Page 91: ...deutsch ...
Page 92: ...91 español USO Y MANTENIMIENTO SERIE NEW 105 E Traducción de las instrucciones originales ...
Page 114: ...113 Portugûes MANUAL DE USO E MANUTENÇÃO SÉRIE NEW 105 E Tradução das instruções originais ...
Page 136: ...135 E HNIKA ΡΗΣΗ ΚΑΙ ΣΥΝΤΗΡΗΣΗ ΣΕΙΡΑ NEW 105 E Μετάφραση των αρχικών οδηγιών ...
Page 159: ...158 E HNIKA ...
