Freedom 10 Owner's Manual - Installation
Part No. 90-0113-00
Fdmman2.p65 2/98
The Freedom Combi is appropriate for
installation in recreational vehicles (RV),
residential solar installations, marine and
other applications. Refer to the separate
installation guide for typical installation
examples and application-specific installation
information.
It is recommended that installation be
completed by an authorized Heart Interface
technical dealer or experienced electrician.
Key Installation Points
The Power Switch must be turned OFF
before you begin.
1. Observe proper polarity when connecting
batteries. Reverse DC polarity will result in
damage to the unit and will void the warranty.
Use care when making the DC connections.
INSTALLATION
3. 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 con-
nected 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.
4. Always use proper wire and connectors.
The proper battery cable size is critical be-
cause considerable amperage flows in the DC
circuit. Fusing the positive DC cables is
required. The AC wire size is dependent on
potential current in the circuit. Consult the
NEC (National Electric Code) for proper wire
gauge.
5. Make sure all wiring conforms to local
and national electrical codes. If in doubt,
consult with a qualified electrician.
6. To meet electrical codes, a fuse must be
installed in the positive battery cable within 18
inches of the battery post. This fuse is
intended to protect the battery and cables
against a dead short circuit. The inverter is
protected internally and will not blow a
properly sized fuse.
2. Do not back-feed the AC output of the in-
verter with incoming AC power. A
back-feed occurs when AC power from shore
power or generator is connected to the output
of the inverter. This will damage the inverter
and void the warranty. Remember that incom-
ing 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 out-
put. Do NOT turn the inverter ON until all AC
connections have been made. Back-feeding
the inverter voids the warranty.
The Freedom Series is not DC reverse
polarity protected. Be very careful to
connect the negative and positive cables
correctly, otherwise damage will result
and the warranty will be void.
WARNING
Do not connect incoming AC from any
source to the AC output of the inverter.
This is known as back-feeding and will
damage the unit and void the warranty.
WARNING
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