Buderus SM80/5 Notice D'installation Et D'entretien page 13

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 (2014/10)
▶ 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
13