Connect the electrical power and set the temperature on
the DHW temperature sensor or the aquastat as shown in
the respective aquastat or control manufacturer's
instructions.
Install a tank temperature sensor or an aquastat on the DHW tank to
measure and monitor the hot water temperature.
Installing the DHW temperature sensor
▶ Take the tank temperature sensor from the scope of delivery of the
control panel (accessories).
▶ Insert the sensor set until it bottoms out inside the sensor well [5].
This automatically pushes back the plastic spiral [3] that holds the
sensor set together.
The compensating spring [4] ensures contact between the sensor well
and sensor surfaces, and a reliable temperature reading.
Always ensure that the full length of the sensor surface is
in contact with the sensor well.
1
2 3
4
Fig. 14 Installing the DHW temperature sensor
[1]
Quarter-circle spacer
[2]
Temperature sensor
[3]
Plastic spiral
[4]
Compensating spring
[5]
Sensor Well
▶ Push sensor retaining clip [1] from the side onto sensor well [2].
▶ Route the sensor lead to the boiler or control panel and ensure the
cable is not strained. This piping must not be in contact with any hot
boiler parts.
SM80/5, SM100/5 – 6 720 800 156 (2017/07)
▶ In the case a sensor is being used without a compensating spring, the
empty space in the sensor well must be filled with a sufficient amount
of heat-conducting paste.
Fig. 15 Installing the sensor retainer
[1]
[2]
Installing the aquastat
▶ Remove cover from the aquastat. To do so, undo the screw on the
top.
▶ If necessary, remove any unnecessary attachments. Attach bracket
[3] to aquastat [2] by means of two self-tapping screws [1].
5
6 720 800 155-17.1ITL
Fig. 16 Screw the bracket onto the aquastat
[1]
[2]
[3]
Sensor retainer
Sensor Well
Self-tapping screws
Aquastat
Holder
5
Installation
6 720 800 155-03.1ITL
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