43
Choice and connection of the control and regulation components
The boiler is delivered with the basic regulation and control equipment. Connection of these
items is given on the scheme of connection. We recommend extending the boiler regulation for
the next regulation components for more comfortable and economical operation. Each pump in
the system must be controlled by an individual thermostat not to let the temperature of the
heating water decrease under 65 °C.
The electrical installation related to the additional boiler equipment has to be done by
a specialist and following the valid regulations.
Connection of the next components is solved by a project architect according to the specific
conditions of the heating system. The electrical installation related to the additional boiler
equipment has to be done by a specialist and following the valid regulations.
Warning: the heating system must be equipped with a safety valve against
overpressure.
4.20
BOILER PROTECTION AGAINST CORROSION
Use of the mixing device (Regumat Attack – Oventrop) is a suitable
solution of the problem with corrosion. It enables creation of the
separate boiler and heating circuit. Thereby is the boiler protected
against undercooling below 65 °C and the creation of water
steams, acids and tars in the boiler´s feeding chamber is eliminated.
The Regumat Attack – Oventrop device keeps the constant
temperature of the return heating water flowing into the boiler
over 65 °C by setting the thermostatic head to the level 5–6.When
the individual thermal regulation mixing valve is used, it is possible
to control the temperature of the heating water independently on
the temperature of water in the boiler by setting the flap. The
temperature in the boiler has to be kept in the range of 80–90 °C.
Technical parameters REGUMAT ATTACK-OVENTROP
Calibre
DN 25
DN 32
Maximum pressure
10 bar
10 bar
Maximum temperature
120 °C
120 °C
Value of kvs
3,9
5,3
Construction height of insulation
365 mm
472 mm
Width of insulation
250 mm
250 mm
Axial distance
125 mm
125 mm
The Regumat consists of three-way mixing valve, circulating pump, closing valve, thermometers
and insulation. This solution is advantageous, because it is compact, enables simple operation
and ensures protection of the steel boiler´s heat exchanger.
Regumat for the boiler:
Ordering code:
ATTACK DP 25 – 35, ATTACK DPX 15 – 35,
ATTACK SLX 20 – 35, ATTACK PELLET 30 Plus,
ATTACK WOOD & PELLET 25:
typ DN25
(there is also an option to order the version with low-energetic pump)
DPP25003
ATTACK DP 45 – 95, ATTACK DPX 40 – 45,
ATTACK SLX 40 – 55:
type
DN32
DPP25006