3 x Installation
33
FA ROTEX Solaris - 08/2007
3.4.8 Installing the solar panel temperature sensor
The sleeve for the solar panel temperature sensor is located on the side of the solar panel frame, approx. 10 cm underneath the
upper connection. The sensor socket is sealed on delivery. The temperature sensor must be installed in the same solar panel to
which the feed pipe is connected.
1. Cut off the protruding end of the sensor socket (Fig. 3-81).
2. Push the solar panel temperature sensor into the socket as far as it will go (see Fig. 3-82). Temperature sensors, where the
marking starts immediately behind the metal sensor sleeve, must be inserted until the marking is no longer visible.
3. Run the silicone-covered sensor cable to the roof duct and secure it to the mounting rail or connection pipe by means of cable
ties (Fig. 3-83).
CAUTION:
Plastic connection pipes will not conduct voltages induced by electrical storms. Adverse conditions may cause
these voltages to spread to the control unit via the solar panel sensor, causing damage to both.
• Implement equipotential bonding measures ("earth connection") between the foundation earthing and the
solar panel array.
This should only be performed by an authorised specialist (electrician) in accordance with the local regulations.
If the solar panel temperature sensor cannot be inserted into the dip sleeve, it could be that the sensor sleeve
has moved in relation to the socket. In this case, the sensor will measure an incorrect temperature. This can
be remedied by aligning the immersion sleeve, e.g. with a 5.5mm Ø spiral drill.
CAUTION!
Moisture can damage the temperature sensor.
• When securing the cable, make sure that no rainwater can run down the cable to the sensor insertion
point.
Fig. 3-81 Cutting off the well cover Fig. 3-82 Inserting the temperature
sensor up to the specified depth in
the well
Fig. 3-83 Secure the sensor cable
with cable ties
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