Worcester 28Si Installation And Servicing Instructions page 60

Wall mounted combination boilers for central heating and mains fed domestic hot water
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Temperature Control:
The Central Heating water temperature is controlled by the centre knob on the facia.
The Domestic Hot Water Temperature is controlled by the right hand knob on the facia.
Standard Programme:
To return to the standard programme press the SELECT and + buttons together.
TO LIGHT AND STOP THE APPLIANCE
Refer to the User operating instruction leaflet or the lighting instruction plate on the appliance.
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25si

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