MidNite Solar MNROSIE7048M, Owner'S Manual

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MNROSIE7048 MANUAL
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•
The MNROSIE7048M has
automatic neutral-to-
ground switching to
specifically work in mobile
(i.e., truck/RV/boat)
applications.
•
The MNROSIE7048M uses
an internal relay (Figure 1 )
that automatically connects
the AC neutral output terminal to the vehicle/
boat’s ground while inverting (Inverter
mode) to provide the neutral-to-ground bond. However, when an external AC source
(i.e., shorepower or a generator) is connected, another neutral-to-ground connection is
introduced in the system.
•
When the MNROSIE7048M is connected to this external AC source and goes into
Standby mode, the internal relay automatically opens the neutral-to-ground connection.
This design keeps two neutral-to-ground connections from occurring at the same time,
thereby preventing an electri
cal shock hazard between the vehicle/boat’s neutral and
the external AC source’s neutral.
INSTALLATION
Before installing, read the entire installation section to determine how you are going to install
your Rosie. The more thoroughly you plan in the beginning, the better your overall system
needs will be met.
Location Considerations
•
Locate the Rosie as close to the batteries as possible. Long DC wires tend to lose efficiency
and reduce the overall performance of an inverter. However, the unit should not be
mounted where it will be exposed to gases produced by the batteries. These gases are
corrosive and will damage the inverter; also, if these gases are not ventilated and if allowed
to collect, they could ignite and cause an explosion.
Rosie Inverter
Mode
Rosie Standby
Mode
Figure 1
In most electrical systems, the neutral-to-ground bond is located in the main utility service
entrance panel. Remove any bond downstream from the inverter to prevent multiple bonds.
If there is an inverter sub-panel — separate from a main electrical panel — it should have a
removable wire that allows the neutral bus to be unbonded from the ground busbar.
WARNING!