Protection Of Boiler Against Overheating - ATTACK DP25 STANDARD Instructions For Use Manual

The advantages
The boiler installation together with the accumulation tank offers several advantages:
- lower fuel consumption (up to 30%). The boiler works in full output to fuel burn-up when the
optimal operation is observed
- High chimney and boiler durability and minimum formation of acids and condensate
- Possibility of combination with another heating sources ( solar panels...)
- conjunction of boiler and floorheating
- confortable and ecological heating
Protection of the boiler against overheating
CAUTION: Cooling circuit against
overheating must not be used by STN EN
303-5 for other use than protection against
overheating.
Valve on the cold water inlet to cooling
circuit must be opened constantly and the
heating circuit has to be connected with
the functional cooling water feeder (p.e.
the cold water from water supply) with the
temperature of 10-15°C and the pressure
of 2-6bar. STS 20 valve which has a sensor
placed in the rear part of the boiler protects
the boiler against overheating. If the
temperature of water in the boiler overcomes
95°C, the valve lets water into a cooling
circuit which overtakes excessing heat. In
case of boiler overheating and STS20 valve
opening the constant off-take of heated water
from heating circuit to waste piping has to be
assured.
Unsecured cooling circulation in the cooling circuit when the STS20 valve is opened,
can cause the boiler damage! In that case the guarrantee cannot be applied.
Instructions for liquidation of the product after its lifetime
After the period of use the product has to be liquidated in a compliance with the local
standards and norms.
Liquidation of wrapping
The wrapping has to be liquidated according to local standards and norms.
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