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5
Installation
5.12 Securing the cover, additional type plate and data
plate
▶ Fit the cover [1] by inserting the hooks into the front panel.
▶ Fix additional type plate [2] to the front panel.
▶ Attach the data plate [3] to either the left or right side panel,
depending on which is most convenient.
Fig. 30 Attaching the data plate
[1]
Cover
[2]
Additional type plate
[3]
Data plate
5.13 Fitting temperature sensors
NOTICE: System damage through damaged capillaries
or incorrectly fitted temperature sensor.
▶ Ensure that the capillaries are neither kinked nor
squashed when uncoiling and routing them.
▶ Always push the temperature sensor right to the
bottom of the sensor pocket.
NOTICE: System damage due to incorrect sensor
position!
The sensors of the high limit safety cut-out (STB) and of
the temperature controller (TR) must be fitted at the
installation location ( Fig. 31) on the top of the boiler.
▶ In the case of third party control units, match the
sensor immersion sleeve to the diameter of the
sensors used.
▶ Do not change the length of the immersion sleeve.
The test point ( Fig. 31, [1]) on the boiler is located on the back of the
boiler shell.
26
Fig. 31 Inserting temperature sensor into the sensor pocket
[1]
Test point (sensor pocket)
▶ Measure the depth of the sensor pocket.
▶ Mark the depth on the temperature sensor set (lead).
▶ Insert temperature sensor set as far as it will go into the test point
(to the bottom)
Use the mark to check whether the temperature sensors are correctly
fitted.
▶ Secure the temperature sensor set in the test point with a sensor
retainer [3] ( Fig. 32).
6 720 804 354-14.1ITL
The plastic coil [2] for keeping the temperature sensors together is
pushed back automatically when it is inserted ( Fig. 32).
1
Fig. 32 Inserting the plastic coil into the sensor pocket
[1]
Compensating spring
[2]
Plastic spiral
[3]
Sensor retainer
[4]
Sensor pocket
▶ Never kink excess lengths of capillaries.
▶ Route the sensor lead to the control unit.
▶ Connect the sensor lead to the control unit.
Insert compensating spring [1] between the
temperature sensors to ensure a good contact between
sensor pocket [4] and sensor surfaces, and thereby a
reliable temperature transfer ( Fig. 32).
Logano plus SB325 – 6 720 806 328 (2013/07)
6720615883-32.1RS
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