Viessmann VITODENS 222-F Installation And Service Instructions Manual page 22

Commissioning, inspection, maintenance
Steps - commissioning, inspection and...
Commissioning steps
Inspection steps
Maintenance steps
• •
21. Checking the condensate drain and cleaning the
siphon.............................................................................. 40
•
22. Checking the neutralising system (if installed)
•
23. Checking the anode connection................................... 40
•
24. Testing the anode earth current with an anode tester 41
•
25. Draining the boiler on the DHW side............................ 43
•
26. Cleaning the primary cylinder....................................... 44
•
27. Checking and replacing the magnesium anode (if
required).......................................................................... 45
•
28. Returning the primary cylinder into use....................... 45
• •
29. Checking the diaphragm expansion vessel and
system pressure............................................................. 46
• • •
30. Checking the function of safety valves
• • •
31. Checking electrical connections for tightness
• • •
32. Checking gas equipment for tightness at operating
pressure........................................................................... 46
• •
33. Checking the combustion quality................................. 47
• • •
34. Checking the external LPG safety valve (if installed)
•
35. Matching the control unit to the heating system ........ 48
•
36. Adjusting the heating curves (only for weather-
compensated control).................................................... 54
•
37. Connecting the control unit to the LON system (only
for weather-compensated control)................................ 56
•
38. Scanning and resetting the "Service" display............. 58
• • •
39. Fitting the front panels................................................... 60
•
40. Instructing the system user........................................... 61
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