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Instruction manual BFC 47
gis
6. Isolate the water heater from the power supply by putting the isolator
between the appliance and the mains power supply to position 0.
7. Shut off the gas supply (10).
8. Close the stop valve (11) in the hot water pipe.
9. Close the stop valve (4) between the water tank and the cold water inlet (A).
10. Open the drain valve (9).
11. Bleed the appliance (or installation) so that it drains completely.
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