Bleeding The Heating System - DeDietrich MCA 45 User Manual

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6.4

Bleeding the heating system

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It is essential that you bleed any air in the calorifier, the conduits or
the taps to prevent the annoying noises likely to be produced during
heating or when tapping water. To do this, proceed as follows:
1. Open the valves on all radiators connected to the heating system.
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2. Set the heating set point to as high a temperature as possible.
3. Wait until the radiators are hot.
4. Switch the boiler off.
5. Wait around 10 minutes until the radiators are cold.
6. Bleed the radiators. Start with the lower floors.
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6. Checking and maintenance
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