05/2024 Item no. 215251 EA no. EA-1291
Operating instructions
3
1
Introduction.................................................................................... 5
1.1 Information on the operating instructions.......................... 5
1.2 Other applicable documents................................................ 5
1.3 Glossary and abbreviations.................................................. 5
2
Safety.............................................................................................. 7
2.1 Symbols in these instructions.............................................. 7
2.2 Proper use.............................................................................. 8
2.3 Residual risks........................................................................ 9
2.3.1 Electric current................................................................. 10
2.3.2 High temperatures........................................................... 10
2.3.3 Danger due to legionella outbreak................................. 11
2.4 Operator's responsibilities................................................. 11
2.5 Personnel requirements..................................................... 12
2.6 Environmental protection................................................... 14
3
Overview....................................................................................... 15
3.1 Functional principle............................................................ 15
3.2 Connection points............................................................... 15
3.3 Components of the controller............................................ 16
3.4 Human machine interface (HMI)......................................... 17
4
Functional description................................................................ 19
4.1 Operating modes................................................................. 19
4.2 Drinking hot water control.................................................. 20
4.3 Heating control.................................................................... 20
4.4 Special functions................................................................ 21
4.5 Password protection........................................................... 21
4.6 Data recording..................................................................... 21
5
Installation................................................................................... 22
6
Commissioning and operation.................................................... 24
6.1
6.2
6.2.1
6.2.2
6.3
Connecting the HMI............................................................. 24
Setting parameters............................................................. 24
Setting parameters on the HMI........................................ 24
Saving changes................................................................ 25
Setting the operating mode............................................... 25
7
Parameter settings and display values..................................... 26
8
Maintenance................................................................................. 29
8.1 Safety during maintenance................................................ 29
8.2 Overview of maintenance work.......................................... 29
9
Faults............................................................................................ 31
9.1 Safety instructions when repairing faults........................ 31
9.2 Fault display........................................................................ 31
9.3 Fault repair........................................................................... 31