Instruction manual

28
Boiler connection to the electricity mains
The boiler is connected to the mains of 230 V/50 Hz by a supply cord and plug. The voltage is of M
type and when replaced, the same type must be used by a service oragnization.The appliance must
be located in such a way that the plug was within the reach of the attendance.
(under STN EN 60 335-1 + A11:1997).
Selection and method of connection of regulation and control elements
Boiler is supplied with basic equipment of regulation and control elements. Connection of these
elements is given in the scheme of connection. It is recommended to extend boiler regulation with
other regulation elements that enable more comfortable and more economical operation. Every
pump in the systme must be controlled by individual thermostat to prevent boiler undercooling at
the return water inlet (C.H. return connection) under 65°C.
Connection of these additional elements is planned by projectant, adequately to specific conditions
of the heating system. Electric installation connected to sufficient boiler equipment must be done by
specialist, in conformity with valid norms.
Warning: heating system must be equipped with safety valve against overpressure.
Boiler protection against
corrosion
Suitable solution of this problem is
usage of mixing device (Regumat
Attack-Oventrop). Both solutions enable
creation of separate boiler and heating
circuit. Thereby it is prevented from
boiler undercooling under 65°C and the
condensation of water steams, acids and
tars in the boiler hopper is eliminated.
Mixing device Regumat keeps constant
temperature of return heating water,
enetring into boiler at 65°C, when the
thermostatic head is set to 5th-6th
degree. At usage of individual thermal
regulation valve, it is possible to
regulate heating water temperature by
setting of the flap, independently from
temperature of water in the boiler. Temperature in the boiler has to be kept in the range of 80-90°C.
Technical parameters REGUMAT ATTACK OVENTROP:
Clarity DN 25
Maximum pressure 10 bar
Maximum temperature 120°C
Value kvs 3,9
Clarity DN 32
Maximum pressure 10 bar
Maximum temperature 110°C
Value kvs 0