4. Maintenance
4.1. Maintenance
Normally, the ULX outdoor inverters need no maintenance or calibration. It should be ensured,
however, that the cooling is not obstructed.
To ensure the functionality of the DC-switch, all switches should be switched on and off (by turning
the switch to on and off positions ten times), once a year, to clean the contacts.
4.1.1. Cleaning the Cabinet
Clean inverter by means of pressurised air or a soft cloth or a brush. Do not use a water hose,
aggressive chemicals, cleaning solvents or strong detergents to clean the inverter.
4.1.2. Cleaning the Heatsink
In order to secure proper function and long inverter life, it is essential that the free air circulation
around the heatsink at the back of the inverter and by the fan at the bottom of the inverter is not
obstructed. If the free air circulation is obstructed, e.g. by dust or snow, this has to be removed.
Clean the heatsink by means of pressurised air or a soft cloth or a brush. Do not use a water hose,
aggressive chemicals, cleaning solvents or strong detergents to clean the inverter.
The heatsink can reach a temperature of more than 70°C during operation. Touching
components of this temperature may result in serious injuries!
Note:
Do not cover the inverter.
4. Maintenance
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