ATTACK DP25 STANDARD Instructions For Use Manual page 19

The variant of connection with the accumulation tank
Heating
system
Expansion vessel
The boiler has to be operated continuously in nominal output. In case of heat outlet when the boiler operates
on a lower output that the nominal, it is necessary to attach the boiler to the accumulation tank
of the volume of min. 460 litres (STN EN 303-5, paragraph 4.2.5 ).
The variants of protection and boiler durability increase
1. Regumat is used to increase the reurn heating water temperature returning into the boiler to
more than 65°C . The return water temperature below 60°C causes increasing formation of
condensate and the tar, and then decreasing of boiler durability.
Regumat consists of three-way mixing valve, circulation pump, closting cock, thermometers
and insulation. The advantage of this solution consists in its compactness, simplicity of
attendance and in guarranteed protection of the boiler thermal exchanger.
Regumat for the boiler
ATTACK DP25, DP35
ATTACK DP45, DP75
STORAGE TANK
FOR DHW
Ordering code
(DN25)
(DN32)
1 2
Regumat
ATTACK-
-OVENTROP
3 4
Technical parameters:
Clarity
Max.pressure 10 bar
Max.temperature 120°C
Value kvs 3,9
Clarity
Max.pressure 10 bar
Max.temperature 110°C
Value kvs 0
DPP25003
DPP25006
19
EN
ATTACK
DP
boiler
DN25
DN32
EN