23
maintenance
Operational test
After having carried out the maintenance operations,
fi
ll
the appliance and the water circuit.
- Begin operating the boiler.
- Check the settings and make sure all the command,
adjustment and monitoring parts are working correctly.
- Check the seal and that the system for the expulsion
of fumes/suction of comburent air is operating
correctly.
Draining procedures
The system must be drained using the following
procedure:
- Remove the batteries,
-
Shut off the water mains inlet valve,
- Open the hot and cold water taps.
WARNING
Before handling, empty all components which may
contain hot water, performing bleeding where necessary.
Descale the components in accordance with the
instructions provided on the safety data lea
fl
et supplied
with the product used, make sure the room is well
ventilated, wear protective clothing, avoid mixing
different products, and protect the appliance and
surrounding objects.
Seal all openings used to take a gas pressure reading
or to make any gas adjustments.
Make sure that the nozzle is compatible with the
supplied gas.
If a smell of burning is detected or smoke is seen leaking
from the appliance, or there is a smell of gas, remove
the batteries, shut off the gas valve, open the windows
and call for technical assistance.
Information for the user
Inform the user on how to operate the appliance.
In particular, provide the user with the instruction
manuals and inform him/her that these must be stored
with the appliance.
Moreover, make sure the user is aware of the following:
- How to set the temperature and adjustment devices
for using the appliance correctly and in a more cost-
ef
fi
cient way.
- The system must be serviced regularly in compliance
with legislation.
- The settings relating to the supply of combustion
air and combustion gas must not in any event be
modi
fi
ed.
