5
© Baxi Heating UK Ltd 2012
D.H.W. Demand
Diverter Valve
D.H.W. Position
Gas Valve Start
Sequence
Gas Valve Opens
Spark
Flame On
3.0 Combi D.H.W. Sequence of Operation
Pump On
Pump Check by
Water Pressure - OK
E430
Yes
No
Fan On
RPM Check - OK
E160
Yes
No
Ignition
No Ignition
E133
Reset
5 Attempts -
Ignition
Achieved
Yes
No
Flame Stabilization
Full D.H.W Rate
Loss of
Flame
E128
Reset
5 Seconds
Stabilization
Boiler Operating
12 Attempts -
Ignition
Achieved
No
Yes
Combi Models
Содержание Duo-tec 2 Combi 24 GA
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