Viessmann VITOCROSSAL 200 Service Instructions Manual page 49

Gas condensing boiler with matrix cylinder burner
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Burner control unit
Status Service
Status Service
Status Service
Status Service
Status Service
Status Service
Status Service
(cont.)
Standby
Idle state check
System tests
Fan ramp-up
Valve and/or
relay test
Pre-purge
Pre-ignition
Ignition
Safety time
Flame established
Burner control unit
49

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