
2 3063772_201507
Table of contents
1. Information about this document ......................................................................... 3
2. Safety instructions ..........................................................................................4 - 5
3. Dimensions ......................................................................................................... 6
4. Specification ........................................................................................................ 8
5. Boiler layout ........................................................................................................ 9
6. Casing ............................................................................................................... 10
7. Standards and regulations ......................................................................... 11 - 12
Installation
8. Handling / Installation instructions ..................................................... 13 - 15
9. Safety equipment...................................................................................... 16
10. Information about water treatment............................................................ 17
11. Boiler system pipework............................................................................. 18
12. Selection of circulation pumps .................................................................. 19
13. Gas connection......................................................................................... 20
14. Fitting the siphons .................................................................................... 21
15. Neutralising system (accessory)............................................................... 22
16. Neutralising system / Condensate pump (accessories) ........................... 23
17. Air/flue gas routing.............................................................................24 - 25
Control unit
18. Electrical connection..........................................................................26 - 31
19. Display/programming module / Installation............................................... 32
20. AM display module ................................................................................... 32
21. AM display module menu structure .......................................................... 34
22. Operating mode / Heating appliance burner status .................................. 35
23. BM2 programming module ....................................................................... 36
24. HG control parameters ............................................................................. 37
25. Parameter description .......................................................................38 - 47
26. Flue gas damper power supply ................................................................ 48
Cascade operation
27. Cascade operation ............................................................................49 - 51
Commissioning
28. Filling / draining the heating system ......................................................... 52
29. Commissioning ......................................................................................... 53
30. Checking the gas supply pressure ........................................................... 54
31. Changing the gas type / CO
2
settings ................................................55 - 56
Specification
32. Commissioning report............................................................................... 57
33. Design information – air/flue gas routing .................................................. 58
34. Wiring diagram HCM2 /GBC-P .......................................................... 59 - 60
35. Troubleshooting ................................................................................. 61 - 64
36. Troubleshooting warning messages ......................................................... 65
37. Sensor resistance table ............................................................................ 66
38. Technical parameters according to EU regulation no. 813/2013 .............. 67
Declaration of conformity .................................................................................. 68