3
Dear customer,
thank you for buying the general – purpose VIADRUS HERCULES U 22 BASIC boiler and thus
showing belief in the company VIADRUS a.s.
At first read this operating manual (especially Chapter Nr.7 – User’s boiler service and Chapter Nr. 8 –
Important notice) to get used to a proper usage with your new product from the very beginning. We
request to maintain the further mentioned information and particularly to perform the prescribed
annual checks by an authorized specialized company by which a long – time failure – free operation
of your boiler - to your and our satisfaction - is secured.
VIADRUS HERCULES U 22 BASIC is a cast-iron sectional low-pressure boiler designated for combustion of
solid fuels – coke, hard coal, wood.
Burning of other materials such as plastic is unallowable.
1.
Usage and advantages of the boiler
Three – sectional size of the boiler VIADRUS HERCULES U 22 BASIC is appropriate for heat source
reconstruction in self – contained flats, for smaller residential and recreational facilities. Bigger sizes of the
boiler meet the requirements of heating the family houses, shops, schools, etc.
The boiler is manufactured in warm-water design with both natural and forced heating water circulation and
working overpressure up to 400 kPa (4 bar). Before dispatch the boiler is tested for tightness by applying
800 kPa (8 bar) overpressure.
Advantages of the boiler:
1. High operating life of cast iron exchanger and all other parts with respect to the quality of used materials.
2. Design approved in the long term.
3. Elaborate production technology on automatic forming lines with consistent and approved quality of the
production process (ISO 9001, ISO 14 001).
4. Efficiency of coke and anthracite burning – 75 – 80 %, efficiency of wood burning – 75 %.
5. Simple service and maintenance.
6. Low demandingness for chimney draught.
7. Power gradation according to the sections.