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Operating instructions
4.2 Washing
DIN 10510 is a German standard which describes how the washing process must
work in a tunnel dishwasher in order to ensure good washing results. Amongst
other things, it recommends that the contact time should be around 120 seconds
for normally soiled loads. The contact time is the time which the load spends in a
wash or rinse zone with washing water containing detergent. The standard is a
useful means of comparing the capacity and consumption of different dishwash-
ers.
Proceed as follows:
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4.2.1 Feeding loads into the machine
The trays are positioned upright with the long side against the conveyor.
For the movement of trays through the machine to continue, new trays must be
placed on the conveyor continuously. For each tray that is fed in, the belt moves
just one short step and then stops. The next tray that is fed in will start the belt
again. When no more trays are fed in to the machine, it will stop.
WD-215T & WD-275T
touch
When washing is to start, the dishwasher must be prepared, i.e. the wash-
ing tanks must be filled and the water in them heated.
Scrape off food residues. Items with dried-on food residue may need to
soak.
Put the dishware on the conveyor.
Check the wash result when the trays are removed from the machine.
In the event of a fault on the dishwasher during operation (machine fault or
human error), an alarm will be shown in the display on the dishwasher's
touch panel. Certain machines can be equipped with lights to indicate
whether any alarms are active in the dishwasher.
Before washing starts, you should make sure that you know where the
dishwasher's emergency stop is located.
40
Rev. 00 (202310)
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