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worcester bosch highflow400?

Hi Ian many thanks for your answer to my question ,will i have to drain the pressure out of the system first before i repressure the expantion vessel or can i do it with pressure in system ,is half a bar the correct pressure for expantion vessel.Can i use a bike pump to do the job.

Dave
October 2009

Worcester Bosch Worcester Bosch Highflow 400 Heating, Home Heating Systems Worcester Highflow 400

system needs to be drained and drain open while re-pressurising. normal footpump will do the job, usually 0.8 - 1 bar is correct pressure.

Ian
October 2009

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Worcester Bosch Highflow 400 - Pressure & Vessel