Danfoss DLX 2.0 Installation Manual

Danfoss DLX 2.0 Installation Manual Manual pdf 24 page image

24 Installation Guide DLX series L00410622-01NOTICESafety Equipment: The system installer is responsible for providing safetyequipment that meets the requirements for both the DC and AC operations toprotect the equipment and prevent personal injury.2.6. Checks before Start Up Mounting:- Check that the bracket and the inverter are correctly mounted and secured. PV wiring:- Check that the PV cables are rated for the PV current and for the presentenvironmental conditions.- Check that the wiring is performed according to local and national electricalregulations. Connection:- Check that the PV conductors are correctly torqued to the DC terminals.- Check that all connectors and cable glands are correctly tightened and sealed. DC side:- Verify that the PV open-circuit voltage (VOC ) does not exceed 600 VDC- Check that the DC polarity is correct. AC side:- Verify that the AC conductors are correctly connected to the AC terminals. Grounded conductors:- Check that the grounded conductors are properly sized, and not fused or switched. Jumpers:- Check that the jumpers for the grounding setup and for the termination resistanceare correctly positioned according to the grounding setup. Disconnects:- Ensure that all current-carrying conductors on both the DC and AC sides have aswitch, and that the switch is located correctly and is readily accessible. Overcurrent protection:- Ensure that the overcurrent protection on both the DC and the AC sides are ratedcorrectly, and capable of being changed without touching live contacts. Inverter cover:- Ensure that no cables interfere with the sealing of the inverter lower cover, and fastenthe cover firmly to the housing. Recommended tightening torque is 1.0 NmCAUTIONVerify that the lower cover is correctly tightened, so that no moisture enters thehousing and damages the electronic components.