Solar N-C-S Installation Instructions 029-04919-0000 rev D
8
b.
In multi-panel parallel solar arrays inspect
that blocking diodes are properly installed on
the solar panel terminal blocks (in the solar
panel wiring boxes) to prevent back feeding
on shaded panels.
c.
Connect the battery box red wire (+) to the
panel + on the solar panel terminal block.
Connect the battery box black wire to panel
negative in the panel terminal block.
8.
Connect the solar panel wires to the solar
charger in the battery box. See Figure 3-3.
a.
Make sure the opaque cloth is still covering
the panel.
b.
Connect the solar panel red wire to the
positive (+) terminal of the solar charger “SOLAR +”
terminal (4).
c.
Connect the solar panel black wire to the
solar charger “SOLAR –“ terminal (3).
Check the panel operation and battery charging using
a volt meter. During daylight hours, if the battery
voltage rises above night levels, then the solar panel
and charger are working.
Monitor the charge process through a full charge. If
the charge voltage is excessive, then the charger may
have failed and will damage the batteries unless
action is taken to disconnect the solar panel until
repairs are made.
The charger is temperature compensated. It is
normal for the charge voltage to be higher when the
weather is cold, and lower when the weather is hot.
The normal full charge voltage varies -28mV per
degree C of deviation from 25°C.
Note: The solar panel only provides power
when illuminated by the sun. If the panel was
covered during installation, remove the cover
before performing this test.
For best results, start with a new fully charged
battery. Never mix old and new batteries.
Be sure
to ground the solar panel rack and battery box
properly according to code.
