47
GB
8.4 Bleeding of the heating system
boiler heat up, even though the circulation pump is running.
in rippling noise. If the circulation pump is stopped for a few seconds, the bubbles usually disappear.
If the problem persists, bleed the heating system.
Vent as follows
1.
2.
3.
4.
out of them, then close them.
5.
6. Start the boiler and allow to run for a while. Feel whether the pipes and convectors around the vehi-
cle are getting warm. If they are hot, venting is complete, otherwise proceed to point 7.
7.
Set the heat to 30 °C
Measures for residual air bubbles, single axle caravan
1. Stop the circulation pump.
2. Lower the front of the caravan as far as possible. Let it stand for a few minutes, so that the air can
move upwards in the heating system.
4. Raise the front of the caravan as far as possible and repeat steps 3.
5. Place the caravan in a horizontal position and start the circulation pump.
Measures for residual air bubbles, bogie trailers and motorhomes
It is easiest to air the heating system with the vehicle on a sloping surface, or with one end of the
contact Alde Service Partner.
Scalding hazard
Overheating
•
• Never use full electricity or gas capacity until the system is properly ventilated.
Never open the air screws while the pump is running, as this would draw air into the system.
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