English 5.906-548.0 Rev. 00 (04/12)
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1 Temperature limiter connection/K5
2 Connection of level sensor for system care
3 Transducer connection
4 Connection, lack of water protection
5 Temperature sensor connection
6 DIP switch
7 Part number, week of manufacture, year of manu-
facture, serial number
8 software: Softwareversion
HW: Hardware version
Start of series: SW V1.8, HW V1.0
9 Device switch connection
10 RFID electronics connection
11 Service switch connection
12 Connection of thermostat
13 Auxiliary relay K4 connection, lack of water
14 PCB motor distributor connection
15 Grounding connection of control electronics
16 Control transformer T1 connection
17 Control transformer T2 connection
18 Auxiliary relay K5 connection, temperature limiter
19 Solenoid valve connection for cold water
20 Solenoid valve for warm water connection
Version numbers of software and hardware
The version numbers of the software (SW) and the
hardware (HW) are indicated on the electronics.
The plugs for the PCB connections are designed with
encoding pins and their matching recesses in the
PCB base so that only the matching plug can be at-
tached to the respective connection.
1 Encoding pin
2 Recess for encoding pin
3 Lock for plug
5.2.3 Control electronics