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5 Maintenance [specialist]
5 Maintenance [specialist]
WARNING
Risk of burns and scalding!
The valves, fittings and the solar fluid can heat up to more than 100 °C.
The solar fluid can escape as vapour and cause scalding.
Only carry out maintenance work if the collector temperatures
Wait until the solar fluid has cooled down to maximum 50 °C.
5.1
Replacing the temperature sensor at the Airstop
2020/08
are below 50 °C.
1. Drain the solar circuit as described in 5.2 Draining the
solar installation.
2. Pull out the fixation clip of the sensor.
3. Pull the sensor [4.1] to the front out of the Airstop.
4. Make sure that there is a sealing ring in the groove
of the new sensor. Make sure that the sealing ring
is correctly positioned when you insert the sensor.
5. After inserting the sensor, fix it by using the clip.
6. Connect the sensor cable.
7. Close the drain valve [3.2].
8. Fill the solar circuit as described in 4.2 Preparations
before flushing and 4.3 Flushing and filling.
997xx3xx-mub-en – V01
17
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