[page 22] | gpelectric.com
INSTALLATION
3.3.6 DC GROUNDING
To protect against electrical shock hazards the GP-ISW metal chassis must be connected to
the DC grounding system. The DC grounding system is sometimes referred to as the earth
ground or another designated ground. For example on an RV, the metal frame of the RV is
designated as the negative DC ground / RV ground.
The DC ground wire connection on the GP-ISW is used to connect the exposed chassis of
the Inverter to the DC grounding system. Use copper wire that is either bare or provided with
green insulation. The size of this conductor should be coordinated with the size of the over-
current devices used.
DC grounding involves proper grounding of the negative of the battery, the DC panel and the
DC side of the GP-ISW. The DC panel is normally used to connect the batteries and distribute
DC power to the Inverter and to the other DC loads.
A common earth ground should be used to bond the Inverter, negative bus bar and the neg-
ative battery terminal. All connections must be tight against bare metal. Use star washers to
penetrate paint and corrosion.
3.4 AC WIRING
The cables linking the GP-ISW to the appliances are the AC cables. The following points must
be observed for the AC Wiring
• Review the safety information at the start of this manual before completing any
AC wire installation steps.
• All AC Wiring must be approved for the application (RV, Marine, Residential). For
RV applications, this may be solid wire in multi-conductor cables, but stranded
wire is required if single conductors are used.
• All wiring must be rated to 75°C or higher.
• Do not connect the AC Output to an AC Power source (generator / shore power).
Severe damage may occur and will not be covered under the warranty.
• Always use properly rated circuit breakers / fuses.
• Make sure all cables have a smooth bend radius and no kinks are present.
