Viessmann B2SB, Installation And Service Instructions For Contractors

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Commissioning steps
Inspection steps
Maintenance steps Page
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1. Removing the front panels ................................................................................................ 28
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2. Filling the heating system ................................................................................................. 28
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3. Filling the DHW cylinder on the DHW side ...................................................................... 29
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4. Checking all connections on the heating water and DHW sides for leaks
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5. Venting the boiler ............................................................................................................... 30
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6. Filling the trap with water .................................................................................................. 30
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7. Venting the heating system ............................................................................................... 31
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8. Commissioning the system with the commissioning assistant .................................... 32
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9. Naming the heating circuits .............................................................................................. 34
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10. Entering heating contractor contact details .................................................................... 35
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11. Checking the gas type ....................................................................................................... 35
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12. Gas type conversion (only for operation with LPG) ....................................................... 35
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13. Checking the static pressure and supply pressure ........................................................ 35
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14. Function sequence and possible faults ........................................................................... 37
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15. Setting the max. heating output ........................................................................................ 38
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16. Activating screed drying ................................................................................................... 38
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17. Tightness test on balanced flue system (annular gap test) ........................................... 39
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18. Removing the burner ......................................................................................................... 39
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19. Checking the burner gasket and burner gauze assembly .............................................. 40
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20. Checking and adjusting the ignition and ionisation electrodes .................................... 41
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21. Cleaning the heating surfaces .......................................................................................... 41
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22. Checking the condensate drain and cleaning the trap ................................................... 41
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23. Installing the burner ........................................................................................................... 43
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24. Checking the neutralising system (if installed)
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25. Checking the anode connection ....................................................................................... 43
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26. Checking the anode earth current with an anode tester ................................................ 44
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27. Draining the boiler on the DHW side ................................................................................ 45
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28. Cleaning the DHW cylinder ............................................................................................... 46
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29. Checking and replacing the protective magnesium anode (if required) ....................... 46
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30. Reassembling and filling the DHW cylinder .................................................................... 47
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31. Checking the expansion vessel and system pressure ................................................... 47
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32. Checking the pre-charge pressure and the DHW expansion vessel (if installed) ........ 48
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33. Checking the safety valve function
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34. Checking the firm seating of electrical connections
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35. Checking all gas equipment for tightness at operating pressure ................................. 49
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36. Checking the external LPG safety valve (if installed)
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37. Checking the combustion quality ..................................................................................... 49
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38. Matching the control unit to the heating system ............................................................ 50
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39. Adjusting the heating curves ............................................................................................ 50
Commissioning, inspection, maintenance
Steps - commissioning, inspection and maintenance
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