Boiler Maintenance - N&W Global Vending Krea Installation - Use - Maintenance

BOILER MAINTENANCE

Depending on the mains water hardness and on the
number of selections made, a descaling of the boiler
could be required.
This operation needs to be carried out exclusively by
qualified technical personnel.
For descaling the boiler, it is necessary to remove the
boiler from the machine.
For descaling only use non-toxic and non-aggressive
biodegradable products.
Rinse well before reassembling the components.
When reassembling, make sure that:
- the electrical connections (terminals, faston, etc...) are
perfectly dry and well connected
- the safety thermostats are correctly positioned and
connected
- the hydraulic connections are correct.
E
sprEsso boilEr tHErmal protEctioN
In case of intervention of the thermal protection the
cause of failure should be identified and eliminated.
The thermostat must be reset manually through the
button placed on the thermostat itself.
The espresso boiler has a touch safety thermostat,
which deactivates the boiler resistance in case the
temperature in the boiler exceeds the safety temperature
(125°C).
In case of intervention of the thermostat, the system
must be restored manually with the button placed on the
thermostat, after verifying and eliminating the cause of
the fault.
Important!
In case of intervention of one of the safety thermostats,
the boiler temperature probe will be damaged and it will
be necessary to replace it.
© by N&W GLOBAL VENDING S.p.A.
2
1
Fig. 31
1- Temperature probe
2- Safety thermostat
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09-2013 4485-00