3.3
General information on control
3.3.5 Sensors
All outgoing signals from the door switch, the level switch, the NTC
sensor and the refill switches are recorded and evaluated by the
microprocessor at the required time.
3.3.1 Regeneration
electronics
The electronics determine, in comparison with the water hardness set
on the appliance, the volume of water which is possible until the
softening system is exhausted.
3.3.6 Tap
closed
The appliance detect that the tap is closed when it does not receive
any signal from the flow sensor after 30 seconds.
The number of rinse cycles are counted. Regeneration then takes
place once the maximum possible number of rinse cycles has been
reached.
3.3.7 Components
The sequence characteristics of the regeneration electronics are
described under Initial start-up / Replacing the electronics.
The components such as the valves, the detergent and rinse aid
dispensers and the circulation pump are actuated by triacs (see listing
of triacs). The drainage pump and the instantaneous water heater are
switched on by relays.
3.3.2 Warm water detection
If the water running into the final rinse cycle is hotter than 45 °C, the
temperature in the final rinse cycle is increased to 72 °C in order to
increase the inherent heat of the dishes. The heat exchanger is not
filled.
3.3.3 Memory
electronics
The electronics module has its own memory which remembers the
programme last selected. If no new selection is made at the start of
the programme, the programme last selected will run.
3.3.4 Power
failure
The electronics module has a power failure memory function which
ensures that the current rinse programme continues in the event of
a power failure or programme interruption.
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