Tech Controllers EU-53.3 User Manual page 46

VIII. MAINTENANCE
Before and during the heating season the EU-53.3 controller should be checked for the condition of its cables. You should also
check if the controller is properly mounted and clean it if dusty or dirty.
IX. SOFTWARE UPDATE
In order to install new software, disconnect the controller from the power supply. Insert the memory stick with new software into
USB port and connect the controller to the power supply. A single sound signal means that the software update process has
started.
NOTE
Software update must be conducted by a qualified fitter. Once the process is completed, factory settings are restored.
X. TECHNICAL DATA
Power supply
Max. power consumption
Ambient temperature
Compressor output load
Fan output load
Pump output load
Heater output load
Sensor thermal resistance
230V +/- 10% / 50Hz
9W
5 ˚C ÷50˚C
1,1A
0,6A
0,5A
2A
-30 ˚C ÷99˚C
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