Item Description
Important Considerations
Ã
12 to 24 Vdc
battery
The ECU must be connected to a 12 to 24 Vdc
power source. To extend this cable, use the
correct wire gauge (
Power Cable Extensions
,
page 7
).
The NMEA 2000 power cable must be connected
to a 9 to 16 Vdc power source.
Ä
CCU
The CCU can be mounted in a non-submerged
location near the center of the boat, in any
orientation (
CCU Mounting and Connection
Considerations
, page 2
).
The CCU must be located away from sources of
magnetic interference.
Å
NMEA 2000
network
The helm control or compatible Garmin
chartplotter and the CCU must be connected to a
NMEA 2000 network using the included T-
connectors (
NMEA 2000 Connection
Considerations
, page 2
).
If there is not an existing NMEA 2000 network on
your boat, you can build one using the supplied
cables and connectors (
Building a Basic NMEA
2000 Network for the Autopilot System
,
page 8
).
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
À
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.
Á
12 to 24 Vdc
battery
The ECU must be connected to a 12 to 24 Vdc
power source. To extend this cable, use the
correct wire gauge (
Power Cable Extensions
,
page 7
).
The NMEA 2000 power cable must be connected
to a 9 to 16 Vdc power source.
Â
Pump
Ã
ECU
Item Description
Important Considerations
Ä
NMEA 2000
network
The helm control or compatible Garmin
chartplotter and the CCU must be connected to a
NMEA 2000 network using the included T-
connectors (
NMEA 2000 Connection
Considerations
, page 2
).
If there is not an existing NMEA 2000 network on
your boat, you can build one using the supplied
cables and connectors (
Building a Basic NMEA
2000 Network for the Autopilot System
,
page 8
).
Å
CCU
The CCU can be mounted in a non-submerged
location near the center of the boat, in any
orientation (
CCU Mounting and Connection
Considerations
, page 2
).
The CCU must be located away from sources of
magnetic interference.
Hydraulic Layouts
NOTICE
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
1
/
4
in. NPT.
• 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 without Power Assist Layout
À
Shadow Drive
Á
Starboard line
Â
Return line
Ã
Pump
Ä
Port line
Å
Shut-off valves
Æ
Helm
Ç
Steering cylinder
4
