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9. Do not backfeed the AC output of the in-
verter with incoming AC power. A backfeed
occurs when AC power from shorepower or
generator is connected to the output of the
inverter. This will damage the inverter and void
the warranty. Remember that incoming AC
must be fed only to the AC input and never the
AC output. Always check for AC voltage before
connecting wires to the AC output. Do NOT
turn the inverter ON until all AC connections
have been made. Backfeeding the inverter
voids the warranty.
10. Do not connect the AC input to the AC
output. This would be equivalent to plugging
the battery charger into the inverter. This could
occur if the unit’s AC output is connected to
the entire leg of a circuit breaker panel, then a
circuit breaker on that leg is used to feed the
battery charger input. This will cause the unit to
oscillate ON and OFF when the unit is in
inverter mode.
11. Always use proper wire and
connectors. The proper battery cable size is
critical. Consult ABYC, UL, NEC or your
marine electrician for recommended battery
cable size. Considerable amperage flows in
the DC circuit. Use recommended cable termi-
nated on each end with recommended ring
terminal connectors. Be sure the connectors
are attached to the cable using a method
approved by the connector manufacturer. After
the crimp is made, the barrel of the terminal
and the first inch of the cable needs to be
INSTALLATION
covered in recommended heat shrink tubing.
Carefully follow the manufacturer’s directions
to meet all requirements.
12. If installing in a system which includes an
existing battery charger or AC to DC converter,
make sure these do not operate from the
inverter output AC power. This sets up a
power loop which, due to inefficiencies, will
quickly drain the batteries.
Do not connect incoming AC from any
source to the AC output of the inverter.
This is known as backfeeding, and will
damage the unit and void the warranty.
WARNING
Freedom Marine 20
Battery Cable Covers
+ Positive
- Negative