Note the following before connecting the DC plugs

• Set the system up in a voltage range between U_MPPmin and U_MPPmax to ensure the optimal layout for the solar modules and the highest yield possible. KOSTAL Solar Plan should be used as a planning tool for this.
• Check that the modules are planned and connected correctly.
• Earthing the generator frame is recommended.
• Measure the DC idling voltage. Please ensure that the maximum permitted DC idling voltage is not exceeded.
• Ensure that the plus and minus are not swapped (ensure that there is no polarity reversal) and that the string cables are not interchanged.
• Record all measuring values and make them available if there is a complaint.
• If the power of the solar modules is higher than that specified in the technical data, ensure that the operating point is still within the MPP voltage range of the inverter.
• Use the same solar module types within a PV string to prevent loss of yield.
• Ensure that the PV string's maximum short-circuit current does not exceed the maximum permitted short-circuit current of the inverter's DC connections.

Failure to comply with this will render any manufacturer's warranty, guarantee or liability null and void unless it can be proven that the damage was not due to non-compliance.