Chapter 1 Safety regulations
SMSO-2-02.01- 15.07.03 9
1.5 Regulations for components
1.5.1 Rotary-vane type pump
The rotary-vane type pump contains components that are
susceptible to damage from knocks or from pressure, and
which may be damaged if handled incorrectly.
For this reason, it is essential that the pump be enclosed
in padding during transport. It must not be exposed to
knocks or shocks, must not be allowed to fall, or put un-
der stress in any way. (in a vice, clamps etc.)
1.5.2 Brewing unit
Damaged cylinder walls and pistons will no longer function
reliably. For this reason when dismantling / assembling this
component, make sure that no scratches are caused. Work
very carefully.
1.5.3 Grinder
The grinding degree should be set only when the grinder
is operating.
1.5.4 Valves
Most valves have a particular direction of flow. If they are
installed incorrectly the water system could malfunction or
a fatal or serious accident could occur. The direction of
flow is identified by means of arrows or by a connection
numbering system.
Safety valves can only comply
with their safety functions if they
are installed in the correct direc-
tion of flow. Incorrectly installed
valves can cause the pressure to
rise too high and the instant
heater or steam generator to
burst. Life-threatening injuries
and material damage could oc-
cur. When installing a safety
valve make sure that it is in-
stalled in the correct direction.
Safety valves must not be disas-
sembled, decalcified and reas-
sembled.
Do not use valves with damaged lead
seal coating.
Non-return valves have only one
direction of flow. If they are installed
counter to the direction of flow, the
water system could malfunction. The
direction of flow is indicated by
means of an arrow on the housing.
When installing a valve make sure
that it is installed in the correct direc-
tion.
Observe the installation direction for all valves.
1.5.5 Unit control system and power PCB
The battery on the unit control system could discharge, if
the strip conductor side (i.e. the underneath of the power
PCB) is touched by conducting surfaces. Therefore, al-
ways place the unit control system on a non-conducting
mat (ESD mat) etc.
The unit control system will only function perfectly if the
PE conductor is correctly connected. Therefore when
changing the unit control system please make sure that
the PE conductor is perfectly connected to the power
PCB.
Electrostatic discharge can destroy a power PCB . When
handling PCBs make sure that they cannot suffer electro-
static discharge and always store susceptible compo-
nents in anti-static packaging.
Replacing the Flash-ROM and the EEPROM modules:
Make sure that the connection prongs are standing in a
straight row, and that that the notches on the housing
match the ones in the base.
1.5.6 Safety thermostats
The safety thermostats can only
fulfil their function if they are cor-
rectly fitted and the connections
are not deformed. Incorrectly fit-
ted safety thermostats or ther-
mostats with deformed contacts
will malfunction or not function
at all, and they will therefore not
switch off the electrical circuits.
This gives rise to the danger of
the instant heater or the steam
generator bursting
. When install-
ing these items please note the
following:
Heat conductivity from the instant heater/steam generator
to the safety thermostat must be perfect. All contact sur-
faces between the instant heater / steam generator, con-
tact sleeves and safety thermostat, and also the safety
thermostat threaded studs must be coated with a suffi-
cient quantity of thermo conducting paste.
The flat plug connections must not be bent either during
assembly, nor, once installed, must they be exposed to
any mechanical stress whatsoever.
After a safety thermostat has been triggered, the tem-
perature sensor must be replaced.
1.5.7 Level probe
There are level probes of different lengths. A level probe
of the incorrect length can cause the steam generator to
malfunction.
Use only level probes of suitable length for each steam
generator.
1.5.8 Instant heater / steam generator
Instant heaters and steam generators are pressure con-
tainers and are checked as a complete unit after the
manufacturing process. Mechanical or chemical cleaning
and decalcification can weaken individual components
and welded seams. This gives rise to the danger of bursts
or leaks. Instant heaters and steam generators
should therefore never be decalcified either
mechanically or chemically.
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