DE DIETRICH INNOVENS PRO MCA 45 - 65 - 90 - 115 - Manual (Page 41)

7. Open the bleed connection using the bleed key provided whilst
keeping a rag pressed against the connection.
8. Wait until water comes out of the bleed valve and then close the
bleed connection.
CAUTION
The water may still be hot.
9. Switch on the boiler. A vent cycle of a duration of around 3 minutes
is carried out automatically.
10.After venting, check whether the pressure in the installation is still
sufficient.
If the water pressure is lower than 0,8 bar, more water
should be added. If necessary, top up the water level in the
heating system (recommended hydraulic pressure
between 1,5 and 2,0 bar).
¼ See chapter: "Filling the system", page 36
11.Set the heating set point.
T000217-A
T000218-A
MCA 45 - 65 - 90 - 115 6. Checking and maintenance
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