975-0753-01-01 7
Basic Installation Procedures
This guide for use by qualified personnel only.
AC Shore Power
A source of 120 volts AC 60Hz sine wave alternating current
provides energy to pass power through to AC loads. This source is
usually the utility grid (power company) or an AC generator. An
automatic or manual AC source selector switch can be used to
switch between the multiple sources of shore power to the Freedom
Xi system.
The AC source feeding the Freedom Xi mu
st have the neutral
conductor bonded to ground. When the inverter passes shore power
through, it will lift the bonding relay on the output and will rely on
the input being bonded in order to ensure that the power delivered to
a sub panel is properly bonded. See “AC Output Neutral Bonding”
on page 9 for more information on bonding relay operation.
Throughout this manual, the term “shore power” refers
to AC in
put power from a utility grid, generator, or other AC source.
AC Disconnect and Over-Current Protection Device
Most safety requirements and electrical codes require the Freedom Xi’s
AC and DC inputs and outputs to be provided with over-current
protection (such as circuit breakers or fuses) and disconnect devices.
AC Input: The circuit breaker or fuse (connected through hard
wiring) that is used to supply the Freedom Xi must be rated at no
more than 30A and must be approved for use on 120 volts AC
branch circuits. The wire used between the breaker and the Freedom
Xi input must be sized adequately to carry current up to the rating of
the input breaker and in accordance with the electrical codes or
regulations applicable to your installation.
AC Output: The circuit breaker or fu
se 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 Xi 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
di
sconnecting 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
AC and have an appropriate current rating.
Important:
Freedom XI Install Guide.book Page 7 Friday, September 18, 2015 2:48 PM
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