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Table of contents

1. About this manual ....................................................................................................................................................... 4

1.1 Contents of these instructions .................................................................................................................... 4

1.2 Overview table ............................................................................................................................................ 4

1.3 Used symbols ............................................................................................................................................... 5

1.4 For whom is this manual intended? ............................................................................................................. 5

2. Safety ............................................................................................................................................................................ 6

2.1 Usage according to purpose ........................................................................................................................ 6

2.2 General safety instructions ........................................................................................................................... 6

2.3 Regulations and standards ........................................................................................................................... 7

2.4 CE-Marking .................................................................................................................................................. 7

2.5 Declaration of conformity ............................................................................................................................ 8

3. Technical Data .............................................................................................................................................................. 9

3.1 Dimensions and connections ........................................................................................................................ 9

3.2 Technical Data .................................................................................................................................... 11

3.3 Water side resistance ........................................................................................................................... 12

3.4 Wiring diagram ................................................................................................................................... 13

3.5 Sensor value tables .............................................................................................................................. 14

4. Prior to installation ............................................................................................................................. 15

4.1 Notes for installation location .............................................................................................................. 15

4.2 Combustion air openings ..................................................................................................................... 16

4.3 Space requirement .............................................................................................................................. 17

4.4 Transportation .................................................................................................................................... 18

4.5 Bringing the boiler in tight spacesi ........................................................................................................ 22

4.6 Installing and aligning the boiler ........................................................................................................... 25

4.7 Install cover panels for transport openings ............................................................................................. 26

4.8 Install siphon and condensate piping .................................................................................................... 27

4.9 Exhaust connections and air supply ducts .............................................................................................. 28

4.10 Corrosion protection ............................................................................................................................ 33

4.11 Heating water requirements ................................................................................................................ 33

4.12 Treating and preparing the heating water ............................................................................................. 34

4.13 Diagram water hardness ...................................................................................................................... 37

4.14 Practical information for heating contractors ......................................................................................... 38

4.15 Description of the function of the air pressure monitor ........................................................................... 39

4.16 Application examples .......................................................................................................................... 40

4.17 Legend............................................................................................................................................... 49

5. Installation ......................................................................................................................................... 50

5.1 Connect heating circuit ........................................................................................................................ 50

5.2 Condensate ........................................................................................................................................ 50

5.3 Neutralisation equipment .................................................................................................................... 50

5.4 Sealing and filling of the plant .............................................................................................................. 50

5.5 Cleaning and inspection openings ......................................................................................................... 51

5.6 Gas connection ................................................................................................................................... 51

5.7 Check tightness ...............................................................................................................................

.... 51

5.8 Factory settings ................................................................................................................................... 51

5.9 CO2 -Content ...................................................................................................................................... 51

5.10 Controller Stop Mode (Manual Adjustment of Burner Load) ..................................................................... 52

5.11 Set CO2-content .................................................................................................................................. 53

5.12 Electrical connection (general) .............................................................................................................. 55

6. Commissioning ................................................................................................................................... 57

6.1 Menu-Commissioning ......................................................................................................................... 57