Viessmann VITODENS 200-W WB2B Service Instructions For Contractors page 6

Commissioning, inspection, maintenance
Steps - commissioning, inspection and . . .
Commissioning steps
Inspection steps
Maintenance steps
20. Checking the neutralising system (if installed)
21. Checking the diaphragm expansion vessel and
system pressure
22. Checking the function of all safety valves
23. Checking the tightness of electrical connections
24. Checking all gas equipment for tightness at
operating pressure
25. Flue gas emissions test
26. Matching the control unit to the heating system
27. Adjusting the heating curves (only for weather-
compensated control units)
28. Connecting the control unit to the LON system
(only for weather-compensated control units)
29. Instructing the system user
30. Scanning and resetting the "Service" display
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