Viessmann B2UA, Installation And Service Instructions Manual

Page: 43 / 200

43
Commissioning steps
Inspection steps
Maintenance steps Page
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23. Checking and adjusting the ignition and ionisation
electrodes ........................................................................ 61
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24. Cleaning the heating surfaces ....................................... 61
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25. Checking the condensate drain and cleaning the
siphon .............................................................................. 62
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26. Installing the burner ....................................................... 63
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27. Checking the neutralising system (if installed)
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28. Checking the anode connection ................................... 64
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29. Testing the anode earth current with an anode tester 65
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30. Draining the boiler on the DHW side ............................ 66
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31. Cleaning the primary store ............................................ 67
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32. Checking and replacing the magnesium anode (if
required) .......................................................................... 68
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33. Re-assembling and filling the primary store ................ 68
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34. Checking the diaphragm expansion vessel and
system pressure ............................................................. 69
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35. Checking the pre-charge pressure and the DHW
expansion vessel (if installed) ....................................... 70
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36. Checking the function of safety valves
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37. Checking firm seating of electrical connections
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38. Checking all gas equipment for tightness at operating
pressure ........................................................................... 70
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39. Checking the combustion quality ................................. 71
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40. Checking the flue system for unrestricted flow and
tightness
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41. Checking the external LPG safety valve (if installed)
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42. Matching the control unit to the heating system ......... 72
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43. Adjusting the heating curves ........................................ 78
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44. Connecting the control unit to the LON ....................... 81
Commissioning, inspection, maintenance
Steps - commissioning, inspection and maintenance
5773 238 GB
Service