Viessmann B2HF, Installation And Service Instructions For Contractors

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Commissioning steps
Inspection steps
Maintenance steps Page
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1. Commissioning the system with the commissioning assistant .................................... 37
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2. Filling the heating system ................................................................................................. 41
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3. Topping up the heating water ........................................................................................... 43
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4. Checking all connections on the heating water and DHW sides for leaks ................... 43
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5. Venting the heating system ............................................................................................... 43
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6. Naming the heating circuits .............................................................................................. 44
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7. Entering contact details of heating contractor ................................................................ 44
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8. Checking the gas type ....................................................................................................... 44
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9. Converting the gas type for operation with LPG ............................................................. 44
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10. Removing the front panel .................................................................................................. 45
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11. Moving the programming unit to the maintenance position .......................................... 46
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12. Checking the static pressure and supply pressure ........................................................ 46
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13. Function sequence and possible faults ........................................................................... 48
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14. Setting the max. heating output ........................................................................................ 49
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15. Adjusting the pump rate of the integral circulation pump ............................................. 50
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16. Activating screed drying ................................................................................................... 51
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17. Leak test on balanced flue system (annular gap check) ................................................ 52
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18. Removing the burner ......................................................................................................... 52
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19. Checking the burner gasket and burner gauze assembly .............................................. 54
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20. Checking and adjusting the ignition and ionisation electrodes .................................... 55
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21. Checking the back draught safety devices ...................................................................... 55
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22. Cleaning the heating surfaces .......................................................................................... 56
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23. Checking the condensate drain and cleaning the trap ................................................... 56
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24. Installing the burner ........................................................................................................... 58
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25. Checking the neutralising system (if installed)
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26. Checking the flow limiter (only for gas condensing combi boiler) ............................... 59
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27. Checking the expansion vessel and system pressure ................................................... 59
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28. Checking the safety valve function
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29. Checking the electrical connections for firm seating
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30. Checking all gas equipment for leaks at operating pressure ........................................ 60
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31. Fitting the front panel ........................................................................................................ 60
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32. Checking the combustion quality ..................................................................................... 60
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33. Checking the flue system for unrestricted flow and leaks
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34. Checking the external LPG safety valve (if installed)
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35. Matching the control unit to the heating system ............................................................ 62
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36. Adjusting heating curves .................................................................................................. 62
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37. Calling up and resetting the maintenance display .......................................................... 62
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38. Instructing the system user .............................................................................................. 63
Commissioning, inspection, maintenance
Steps - commissioning, inspection and maintenance
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