Necta KORO Fresh Brew, Installation, Use And Maintenance Manual

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© by N&W GLOBAL VENDING SpA 0603 265 - 00
- wash all parts with detergent being sure that all visible
residue and product layers are mechanically removed,
using a brush if necessary;
Disinfection should be carried out using sanitising products.
- soak all components for approx. 20 minutes in a container
filled with the previously prepared sanitising solution;
- reinstall the feeders and the water funnels;
- reinstall the powder deposit drawers and the powder
funnels after thoroughly drying them.
After reinstalling all parts the following is however
required:
- add a few drops of the sanitising solution in the mixer;
- using the mixer cleaning function with the door closed,
thoroughly rinse all components to ensure that all residue
of the detergent solution is removed.
MAINTENANCE OF THE BREWER UNIT
As well as cleaning every week and/or every 1,000
selections, the brewer filter and gasket must be replaced
every 25000 selections, even if apparently still efficient.
Every 100,000 selections the brewer unit must be
disassembled completely to thoroughly clean all parts and
replace the worn ones.
Important notice!!
Should the unit need to be removed completely, it must not
be held by the cylinder or by the filter holder.
MAINTENANCE OF THE BOILER
According to the hardness of the water and the number of
selections made, a periodic descaling of the boiler is
necessary.
This operation should be carried out by qualified
technicians only.
To descale the boiler, it is necessary to remove it from the
machine.
For descaling use only biodegradable, non-toxic and mild
products.
Thoroughly rinse all parts before reassembling.
When reassembling make sure that:
- the electrical contacts (terminals, fastons etc.) are
thoroughly dry and correctly connected;
- the safety and anti-boiling thermostats are suitably
positioned and fastened;
- the hydraulic connections are correctly made.
IMPORTANT NOTICE!!!
If for any reasons the heating system of the boiler is
operating without water, check the correct functioning
of the boiler temperature sensor before restarting the
machine.
If dry heating continues until the safety thermostat is
activated (see hydraulic system) the boiler temperature
sensor could be damaged permanently and therefore
need to be replaced;
a thorough check of all components of the system (pump,
boiler heating element, tubing etc. in indispensable in any
case.
FLOW DIVERTER SOLENOID VALVE
The efficiency of the brewed product flow diverter (see Fig.
25), dispensing from the spout and to the external nozzle,
especially the tubes inside the clamp, must be checked
periodically.
Fig. 24
Fig. 25
1 - Flow diverter solenoid valve
2 - Silicone tubes