PVI 3000S, 4000S, 5000S, 5300 Series Inverters
Installation and Operation Manual (Rev A)
54
WARNING:
EXTREME SHOCK AND FIRE HAZARD! FAILURE TO FOLLOW THE FOLLOWING
PROCEDURE CAN RESULT IN SERIOUS SHOCK, FIRE DAMAGE AND WILL VOID INVERTER
WARRANTY!
WARNING:
PV arrays are always energized when exposed to light, therefore hazardous
voltage is still present on the terminal blocks and the PV string fuse holders even when
the DC/AC disconnect switch is switched OFF. Please cover the PV arrays with opaque
(dark) materials during PV string fuse replacement.
•
Remove wiring box cover
•
Check DC voltages of all strings using a meter. Measured voltage should be open circuit
voltage. If the measured voltage is at or close to 0.0V, then STOP and do not remove any
fuses. Recheck your wiring to ensure there is not a dead short or a string with reversed
polarity.
•
Check DC current of all strings using DC clamp on meter. Measured currents should be at
or very close to 0A. If there is a measured current reading, then STOP and do not remove
any fuses. Recheck your wiring to ensure there is not a dead short or a string with
reversed polarity.
•
Once the voltages and currents are measured and confirmed to be correct, remove and
replace the PV string fuses.
Figure 7.2.2 – Replacement of the PV String Fuses
Factory Service
Please contact Solectria Renewables customer service for documentation to remove and replace
inverter section without removing the wiring box.