Oliver LEGACY ELITE 2022, Manual

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358
XANTREX FREEDOM XC PRO INVERTER
Basic Installation Procedures
975-0799-01-01 21
AC Output
The circuit breaker or fuse must be rated at no more
than the rating of the input breaker in the installation
and must be approved for use on 120 volts AC
branch circuits. The wire used between the
Freedom XC PRO and the AC output breaker must
be of adequate size to match the AC input circuit
breaker’s rating. The wiring from each AC output
breaker to each of the loads must be adequately
sized to carry the current rating of the individual AC
output breaker.
Disconnect
Devices
Each system requires a method of disconnecting
the AC circuits. If the over-current protection
devices are circuit breakers, they will also serve as
the disconnects. If fuses are used, separate AC
disconnect switches will be needed ahead of the
fuses. These will have to be a branch circuit rated
for 120 volts ACand have an appropriate current
rating.
AC Distribution Panels
Most systems incorporate distribution centers both ahead of the
Freedom XC PRO (the AC source panel) and between the
Freedom XC PRO and the loads (the AC load panel). An AC
source panel includes a main circuit breaker, which serves as
over-current protection and as a disconnect for the AC shore
power supply line. Additional circuit breakers serve individual
circuits, one of which serves the Freedom XC PRO. The AC load
panel can incorporate an AC output circuit breaker and breakers
for individual load circuits.
NOTICE
RISK OF INVERTER DAMAGE
Do not connect the Freedom XC PRO to a 120/240V, 3-pole, 4-
wire circuit.
Failure to follow these instructions can result in equipment
damage.
AC Cabling
AC cabling includes all the wires and connectors between the AC
source and the Freedom XC PRO, as well as all AC cabling
between the Freedom XC PRO and the AC output panels, circuit
breakers, and loads. The type and size of the wiring varies with
the installation and load. For example, in high vibration
environments, such as marine or RV applications, wire nuts may
not be acceptable, so crimp splices would be required. In other
Basic Installation Procedures
22 Freedom XC PRO Owner's Guide
applications, flexible multiple-strand wire may be required.
Installation codes usually specify solid or stranded, overall size of
the conductors, and type and temperature rating of the insulation
around the wire.
AC breakers and fuses must be sized to adequately protect the
wiring that is installed on the input and output AC circuits of the
Freedom XC PRO. All breakers and wiring must be sized and
connected in accordance with the electrical codes or regulations
applicable to your installation.
Table 5
gives some examples of
wiring sizes based on the U.S. National Electrical Code and the
Canadian Electrical Code. These examples are based on using a
two-conductor-plus-ground copper cable rated at 60 ° C, and
assuming an ambient temperature of up to 30 ° C. Ensure that your
breakers and fuses have suitable temperature ratings for your
wiring. Other codes and regulations may also be applicable to your
installation.
Breaker
Size (A)
10A 15A 20A 30A 50A
Minimum
Wire Size
(AWG)
14AWG 14AWG 12AWG 10AWG 6AWG
Table 5 Required AC Wire Size vs Breaker Rating
AC Output Neutral Bonding
The neutral conductor of the Freedom XC PRO’s AC output circuit
(that is, AC Output Neutral) is automatically connected to the
safety ground during inverter operation. When AC utility power is
present this connection is not present, so that the utility neutral
(that is, AC Input Neutral) is only connected to utility ground at
your source. This conforms to the National Electrical Code
(NEC), which requires that separately derived AC sources (such
as inverters and generators) have their neutral conductors tied to
ground in the same way that the neutral conductor from the utility
is tied to ground in only one place. Check the regulations for your
specific application to ensure that the installation will comply with
the necessary requirements. In other words, the AC Input Neutral
ground bonding and Output Neutral ground bonding must be
isolated from each other.
AC Grounding
As per UL458 SA29.5, for all permanently connected marine
inverters: The Freedom XC PRO should be connected to a
grounded, metal, permanent wiring system. Also, make sure that
an AC ground wire is connected to the AC ground terminal on the
unit. Do not just connect the line and neutral wires.
All connections to the unit should comply with all regulations,
directives, local codes and ordinances.