DeDietrich Vivadens MCR-P 28 BIC PLUS User Manual page 26

6. Checking and maintenance
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4. Switch the boiler off.
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5. Wait around 10 minutes until the radiators are cold.
6. Bleed the radiators. Start with the lower floors.
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7. Open the bleed connection using the bleed key provided whilst
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keeping a rag pressed against the connection.
MCR-P 24/28 BIC PLUS
170915 - 127686-04