Operating manual for melting and
tempering machines, type 2T70 & 2T130
Version 2019-1
5
that the right-hand thermostat is adjusted to 00. If not, then adjust to this
value.
3.
Make sure that the lid on the top of the machine is placed in the right
position (activates the safety switch). Press black button 2c. The solenoid
valve will open, and the water will flow into the water jacket. The stirrer
will start automatically (make sure that the scraper blades face forward).
Once the direction is ascertained the stirrer must be stopped by pressing
button 4c (if the direction isn’t correct, change 2 phases in the connecting
cable). It will last 5-10 minutes to fill the water jacket. When there is water
in the outlet, the filling is completed.
Switch off the main switch “5” – and switch it on again (this stops the
water filling as the automatics isn’t fully implemented yet).
4.
Further on in the manual are instructions for the thermostats. Please be
familiar with them prior to filling chocolate into the temperer.
5.
The machine is now ready for operation, once the thermostats are
programmed.
NOTE: In case of the water jacket is drained, the heating elements must not
be turned on.
Safety thermostat
The tempering machine has two kinds of thermostats: operation thermostats which
controls melting and tempering of the chocolate, and a safety thermostat which
prevents the chocolate from being over heated.
In the event of a thermostat malfunction the power supply to the heating element
will be disconnected by the safety thermostat when the chocolate reaches a
temperature of app. 55
0
C.
When the temperature of the chocolate has fallen to app. 40
0
C – 45
0
C the safety
thermostat will re-connect the power supply to the heating element and
consequently keep the chocolate liquid.
If the temperature of the chocolate gets higher than the melting set point, a skilled
technician must inspect the function of the safety thermostat.
Safety switch in lid
The machine has a build-in safety switch in the lid. If the lid is removed during
machine operation, the rotation of the stirrer will stop. The machine is started again
by putting back the lid and then push the button 4a.
In the electrical diagram, appendix 4, the lid safety switch is named “LC”.
