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Basic Installation Procedures
18
Freedom X 2000 - 230V Owner's Guide
DC Cabling
This includes all the cables and connectors between the batteries,
the DC disconnect and over-current protection device, and the
Freedom X. Mobile installations require multi-strand insulated
cables for flexibility and durability in high vibration environments
and require disconnects and over-current devices. Wire size is
usually marked on the larger sized cables.
minimum recommended DC cable size and maximum fuse size
for the Freedom X.
The DC cables must be stranded, copper,
and must be rated 105 °C minimum.
The cables should be
terminated with lugs that fit the DC stud terminals snugly (8mm
hole size) and properly torqued according to manufacturer-
specified torque setting.
Inverter
Cable Length:
Battery to Inverter
(one way)
Minimum
Cable
Size
(mm
2
)
Maximum
battery
Fuse Size
Freedom X
Less than 1.5
meters
70mm
2
250 A
Z
NOTE
:It is not recommended using a cable longer than 1.5
meter) in each direction.
Table 5 Required Cable Sizes
IMPORTANT
: Using the correct cable size is critical to achieving
the rated performance of the Freedom X unit. When starting a
heavy load the Freedom X can draw current surges from the
battery of up to 250A. If the DC wiring is too small the voltage drop
from this surge will result in a voltage at the Freedom X terminals
that is too low for the Freedom X to operate correctly. The
Freedom X may appear to operate correctly with smaller cables
until a heavy load such as a microwave or refrigerator attempts to
start - then the unit may work correctly sometimes and not work
correctly other times.
DC Disconnects and Over-Current Devices
The DC circuit from the battery to the Freedom X must be
equipped with a disconnect and over-current device. This usually
consists of a circuit breaker, a “fused-disconnect”, or a separate
fuse and DC disconnect.
Do not confuse AC circuit breakers
with DC circuit breakers.
They are not interchangeable. The
rating of the fuse or breaker must be matched to the size of cables
used in accordance with the applicable installation codes. The
breaker or disconnect and fuse should be located as close as
possible to the battery, in the positive cable. Applicable codes
may limit how far the protection can be from the battery.
Batteries
The Freedom X uses 12 V
Z
battery banks. Every Freedom X
system is recommended to have a deep-cycle battery (house) or
group of batteries with a total capacity of 100 Ah or more which
provides the DC current that the Freedom X converts to AC.
Summary of Contents for 817-2000-12
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