ComNav G2 & G2B Installation & Operation
Document PN 29010093 V1.5 - 18 -
16 December 2016
Installation
Please refer to the Warranty Information section of this manual before proceeding with
installation of the G2.
Tools Required
General-purpose tools such as a portable drill, pliers, wire cutters, screwdrivers, wire,
mounting bolts and wrenches will be required. An accurate voltmeter or multi-meter
would also be useful.
Hazard warning!
Extreme caution is advised when using tools powered by
alternating current (AC) from main supply circuits, regardless of
whether those circuits are rated for “indoor”, “outdoor”, “marine”
or “industrial” use. Water, especially sea water, is an excellent
conductor of electricity, and can complete a path to AC Ground
through your body, causing injury or death, if a tool malfunctions
or short-circuits.
Battery powered tools are
STRONGLY
recommended
If AC tools are used, they must be plugged into a circuit that is
adequately protected against Ground Faults and other safety
hazards, in accordance with local electrical codes.
Power Supply
NMEA 2000 setup: G2 Satellite Compass is to be connected to the NMEA2000 network
power. For a reliable operation, the network power must be capable to provide the
current for the total LEN specified by all connected network devices. Refer to the
specifications on page 65 for G2 power rating.
NMEA 0183 setup: Unit is powered by the vessel’s power supply system and must have
an adequate circuit breaker or fuse. Power supply must be in voltage range of 9 to 36
volts DC. It is recommended to connect the unit to power via an on/off switch.
If you are using a Navigator G2 Display with your G2, please note that
the Navigator G2 Display and its DU box only work at 12VDC
Ensure adequate wire sizes are used to handle the expected maximum currents (see 19).
Environmental Considerations
• Ensure that the G2’s Operating & Storage Temperature Ranges are not
exceeded (see Specifications,
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