PVI13KW Installation and Operation Manual
DOC-020028 rev 006
17
Connection of the PV-panels to the DC disconnect enclosure with or without
integrated fused PV combiner
WARNING:
Follow PV module manufacturer’s directions. PV-arrays produce
electrical energy when exposed to light and could create a hazardous condition.
(One method used to assure safety from shock is to comp letely cover the surface of
all PV-arrays with opaque (dark) material before wiring them.)
Depending on the type of PV- modules used it is possible to use several parallel strings.
(Appendix B shows some example PV string sizing tables.)
WARNING:
Before connecting the connectors of the PV-panel to the DC
disconnect enclosure fused PV combiner (if equipped) or + and – terminal block if
not equipped with combiner check the correct polarity and admissible PV-panel
voltage between the + and the - cable connectors of the PV panel.
The PV-panel open circuit voltage must be below 450V DC (V
pv
< 450 V DC)
under all conditions as per NEC 690-7. Please read the Technical Info section and
see PV string sizing table in Appendix B.
Inverter with fused PV combiner in DC disconnect enclosure:
There are 7 fuse blocks for up to 7 PV strings of 10-15A fuse rated PV module strings. The
positive (+) wire from each string is connected to each fuse block bottom screw terminal. There
are also 7 negative positions to be used for negative (-) connections on the negative (-) terminal
blocks.
Inverter without fused PV combiner in the DC disconnect enclosure:
There is a positive and negative terminal block for connection of a combined PV power feed
from a customer-provided external fused PV combiner.
WARNING:
A fused, correctly rated PV combiner must be used with this version
of the inverter.
WARNING:
Even when in the off position, the DC disconnect will remain live on
the PV side (“line”) when the PV modules are in daylight. The inverter (“load”)
side of the disconnect will also remain live after the disconnect has been shut off
until 60 seconds after the LEDs turn off, as electrolytic DC bus capacitors in the
inverter discharge.
Содержание PVI 13KW
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