Pereko KSM 17, Руководство по эксплуатации и обслуживанию

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Page Operation and maintenance manual for the KSM series boilers with feeders. The producer reserves the right to introduce technical modifications.
3.6. Filling the system with water
3.6.1. Filling the boiler with water
before
fi rst start-up
1. Flush heating system and boiler before fi lling it with water to
remove all contaminations.
2. Fill the system with water through the drain cock using the
fl exible hose. Water intended for feeding the heating boil-
er should meet the requirements of the PN-93/C-04607
standard. Quality of water
fi lling the central heating system
in fl uences its durability therefore this water should be free
from the contaminations, oil and aggressive chemical sub-
stances. Water hardness should not exceed 2-4 (mval/l). Too
hard water causes deposition of sediment in the boiler and
heating system what decreases e
ffi ciency and may damage
the boiler.
3. Stop feeding of water when the system is full that is water
will start fl owing out from the signalling pipe of the ex-
pansion vessel located in the highest point of the system
or when the pressure gauge indicates 5 bar. Re
fi lling should
take several seconds to make sure that the water fl ows down
from the vessel.
4. Close boiler drain cock and disconnect fl exible hose from the
equipment when the system is fi lled.
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.