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MCR 24 MCR 24/28 MI MCR 30/35 MI MCR 34/39 MI
5.3
Filling the system
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4 Clean the outside of the boiler using a damp cloth and a light
The water pressure in the boiler must be between 1,5 and 2 bar. Add
water to the installation if necessary. 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 room thermostat to as low a temperature as possible.
3. Switch off the boiler electrical power supply.
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detergent.
CAUTION
Only a qualified professional is authorised to clean the
inside of the boiler.
5. Checking and maintenance
20
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