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Operation and maintenance manual for the Q-PER series boilers with feeders. The producer reserves the right to introduce technical modifications.
3.6.2. Re
fi
lling the system with water
Heating system with open container allows direct contact of
heating water with the air what results in evaporation and ne-
cessity to re
fi
ll it.
NOTE! It is forbidden to add cold water to hot system. Add-
ing water to hot components of the boiler may damage it
and is synonymous with loss of the warranty..
The system can be re
fi
lled with water only when the boiler is
cold. Firing up should be restarted after
fi
lling the system.
3.6.3. Draining water from the system
It is not recommended to drain the water from the system after
the heating season because it increases the risk of occurrence
of the corrosion and formation of boiler scale. The exception
is a time needed to carry out necessary repair and long-term
standstills of the boiler during strong frosts. In the latter case it is
recommended to drain water from the system (to avoid freezing
and therefore damaging to the system) and re
fi
lling it with wa-
ter when the frost is over.
