57
IRIS
Fig. 9.12
Fig.9.14
Fig. 9.13
9.3.2 Regulation of the instant solenoid water delivery valves
In the case of soluble products you can regulate the quantity of
water and the powder dosage electronically by varying the standard
parameter, according to the procedure indicated in chapter 7.0
PROGRAMMING.
Due to problems caused by the formation of lime scale the instant
solenoid valves can have a reduced water delivery.
Regulation of the degree of grinding. Turn the screw (fig.9.12)
to obtain the desired results.
Turn clockwise for fine grinding, turn anti-clockwise for coarser
grinding.
After regulation, three product regulations must be carried out
in order to assess the efficiency of the regulation, the finer the
granules the greater the time required for product delivery.
9.4 Inactivity
If the automatic vending machine remains inactive for a long time
it is necessary to perform some prevention operations:
disconnect the machine electrically and hydraulically.
empty completely the instant boiler and the floater reservoir
removing the plug located on the hose along the drain chute.
Put the plug back in once the draining has been done.
unload all the product from the containers (Fig. 9.13)
perform a thorough cleaning of all the parts in contact with
food substances according to what has already been described.
empty the liquid waste bin carefully
eliminate the spent grounds bag
clean with a cloth all the internal and external surfaces of the
machine.
protect the outisde of the machine with a plastic film wrapping
or bag (fig. 9.14)
stock in a dry and protected place where the temperature is
not less than 1° C.
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