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Technical Information
4.3.5 Sensor inputs
The pressure sensors have 2-wire connections and operate with a 4 to 20 mA signal. Every pressure sensor
input has its own 24 V DC power supply and is limited to max. 25 mA.
As temperature sensors 10K@25°C NTC sensors are used. The supply voltage for the NTC sensors is 3.3V
DC.
Figure 8: Sensor positions
S1: Suction gas sensor
S2: Air in sensor
S3: Air out sensor
S4: Fin sensor/defrost sensor
S5: Refrigeration unit temperature
S6: Discharge temperature
S4
S2
S1
S3
S6
S5
