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Item Description
Important Considerations
CCU
You can mount the CCU in a non-submerged
location near the center of the boat, in any
orientation
Considerations, page
Mount the CCU away from sources of magnetic
interference.
NMEA 2000
You must connect the helm control or compatible
network
Garmin chartplotter and the CCU to a NMEA
2000 network using the included T-connectors
(NMEA 2000
page
2).
If there is not an existing NMEA 2000 network on
your boat, you can build one using the supplied
cables and connectors
2000 Network for the Autopilot System,
page
7).
Dual-Helm Layout Guidelines
NOTE: This diagram is for planning purposes only. If needed,
specific connection diagrams are included in the detailed
installation instructions for each component.
Hydraulic connections are not shown in this diagram.
Item Description
Important Considerations
Helm control
A dedicated helm control is not included in all
autopilot packages. If you install the autopilot
without a dedicated helm control, the autopilot
CCU must be connected to the same NMEA
2000 network as a compatible Garmin
chartplotter to configure and control the autopilot
system.
12 to 24 Vdc
You must connect the ECU to a 12 to 24 Vdc
battery
power source. To extend this cable, use the
correct wire gauge
page
5).
You must connect the NMEA 2000 power cable
to a 9 to 16 Vdc power source.
Pump
ECU
NMEA 2000
You must connect the helm control or compatible
network
Garmin chartplotter and the CCU to a NMEA
2000 network using the included T-connectors
(NMEA 2000
page
2).
If there is not an existing NMEA 2000 network on
your boat, you can build one using the supplied
cables and connectors
2000 Network for the Autopilot System,
page
7).
CCU
You can mount the CCU in a non-submerged
location near the center of the boat, in any
orientation
Considerations, page
Mount the CCU away from sources of magnetic
interference.
4
(CCU Mounting and Connection
1).
®
Connection Considerations,
(Building a Basic NMEA
(Power Cable Extensions,
Connection Considerations,
®
(Building a Basic NMEA
(CCU Mounting and Connection
1).
Hydraulic Layouts
If the steering system in your boat does not match any of the
hydraulic layouts in this manual and you are unsure how to
install the pump, contact Garmin Product Support.
Before you start the pump installation, identify the type of
hydraulic steering system in your boat. Each boat is different,
and you must consider certain aspects of the existing hydraulic
layout before deciding where to mount the pump.
Important Considerations
• The three hydraulic ports on the pump are
• Garmin recommends using T-connectors to connect the
hydraulic lines to the pump.
• To allow for easy pump disabling and removal, Garmin
recommends installing shut-off valves in the hydraulic lines
between the pump manifold and T-connectors.
• Teflon
®
tape must not be used on any hydraulic fitting.
• An appropriate thread sealant should be used on all pipe
threads in the hydraulic system.
Single-Helm Layout
Shadow Drive valve
Starboard line
Return line
Pump
Port line
Shut-off valves
Helm
Steering cylinder
Dual-Helm Layout
Return line
Shadow Drive valve
NOTICE
1
/
in. NPT.
4
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