Basic Installation Procedures
975-0395-01-01
1–7
This guide for use by qualified installers only
AC shore power
A source of 120 V, 60Hz sine wave alternating current is needed to
provide energy to charge batteries and 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 HF
system.
The AC source feeding the
Freedom HF
must 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 1–9
for
more information on bonding relay operation.
Generator
The
Freedom HF
is compatible with most generators which produce
nominal 120 Vac 60Hz sine wave AC power.
Since the DC charging current limit of the
Freedom HF
may be
configured to provide as little as 2A it is possible to use very small
generators with the
Freedom HF
to charge batteries. The
Freedom HF
has
been tested with generators of various sizes, including some as small as
700W.
AC Disconnect
and Over-
Current
Protection
Device
Most safety requirements and electrical codes require the
Freedom HF
’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 HF
must be rated at no
more than 30A and must be approved for use on 120 Vac branch
circuits. The wire used between the breaker and the
Freedom HF
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.
Important:
Throughout this manual, the term “shore power” refers to AC
input power from a utility grid, generator, or other AC source.
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