Operating instructions EUROTRONIK-20 Page: 5
Electrical connection
Only authorised electricians may carry out electrical connection, balancing and service work! The
following connection diagrams and all valid safety regulations must be followed. When working on
the open housing precautions must be taken to protect the electronic components against
electrostatic discharges.
N
L1
L1
6
5
N
7
U3
U2
4
3
2
11
10
N
Mains
P
T2A
230V/50Hz
EUROTRONIK-20
K1
K2 K3
K4
Pressure switch
Backwash pump
230V/max.1,1kW
Motor-operated valve
Temperature-
regulator
230V/max.100W
Filter pump
230V/max.1,1kW
All conductive components must be integrated in the local equipotential bonding system.
The terminals L1 and 2, L1 and 3 as well as L1 and 6 have to be connected.
The contact K2 in the EUROTRONIK is closed when the valve has reached one of its final positions. This
prevents the filter pump from being switched on by the filter controller during the adjusting process. In teh
position Filter this contact is only closed during filtration-time.
The contact K3 in the EUROTRONIK is only closed when the valve is in the final position Filter and the
filter pump is running. An external temperature regulator can be connected to terminal 5 which is only
supplied with power during filtration time.
The contact K1 in the EUROTRONIK supplies the terminal U2 with power during backwashing, clear
rinsing and emptying, while for the rest of the time the terminal U3 is live. A motor-operated valve (230 V)
can be connected to these terminals to replenish the water lost during the rinsing cycles.
The contact K4 in the EUROTRONIK is only closed when the valve is in the final position Backwash and
can be used to operate an additional backwash pump.
The osf pressure switch (art. no. 2000599015) can be connected to the terminals 10 and 11. It is screwed
into the manometer connection in the 6-way valve. The metal body of the pressure switch must be
grounded. This switch triggers a backwashing cycle when the pressure limit that has been set is exceeded
irrespective of how the switch clock in the EUROTRONIK has been programmed.
Summary of Contents for 3104811211
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