Draining The Installation - Vivadens MCR-P 24 User Manual

5. Checking and maintenance
T000183-A
5.5

Draining the installation

23
8. Wait until water comes out of the bleed valve and then close the
bleed connection.
T000218-A
9. After venting, check whether the pressure in the installation is still
sufficient. Add water to the installation if necessary.
10.Switch on the boiler. A vent cycle of a duration of around 3 minutes
1,5 ... 2 bar
is carried out automatically.
T000228-A
11.Set the room thermostat or the regulator.
It may become necessary to empty the water from the heating system
when the radiators have to be replaced, should there be a major water
leak or a risk of frost. To do this, proceed as follows:
1. Open the valves on all radiators connected to the heating system.
T000181-B
2. Switch off the boiler electrical power supply.
MCR-P 24 MCR-P 24/28 MI MCR-P 30/35 MI MCR-P 34/39 MI
CAUTION
The water may still be hot.
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