Helm Control Installation
You must Install the helm control by flush-mounting it in the
dashboard near the helm and connecting it to a NMEA 2000
network.
To use advanced features of the autopilot, optional NMEA 2000-
compatible or NMEA 0183-compatible devices, such as a wind
sensor, water-speed sensor, or GPS device, can be connected
to the NMEA 2000 network or connected to the helm control
through NMEA 0183.
Mounting the Helm Control
NOTICE
If you are mounting the device in fiberglass, when drilling the
four pilot holes, it is recommended to use a countersink bit to
drill a clearance counterbore through only the top gel-coat layer.
This will help to avoid any cracking in the gel-coat layer when
the screws are tightened.
Stainless-steel screws may bind when screwed into fiberglass
and overtightened. Garmin recommends applying an anti-seize
lubricant to the screws before installing them.
Before you can mount the helm control, you must select a
mounting location (
Helm Control Mounting Considerations
).
1
Trim the flush-mount template and ensure it fits in the
selected mounting location.
The flush-mount template is included in the helm control
product box.
2
Secure the template to the selected mounting location.
3
If you plan to cut the hole with a rotary cutting tool instead of
a 90 mm (3.5 in.) hole saw, use a 10 mm (3/8 in.) drill bit to
drill a pilot hole as indicated on the template to begin cutting
the mounting surface.
4
Using the hole saw or rotary cutting tool, cut the mounting
surface along the inside of the dashed line indicated on the
template.
5
If necessary, use a file and sandpaper to refine the size of
the hole.
6
Place the helm control into the cutout to confirm that the four
mounting holes on the template are in the correct locations.
7
If the mounting holes are not correct, mark the correct
locations of the four mounting holes.
8
Remove the helm control from the cutout.
9
Drill the four 2.8 mm (
7
/
64
in.) pilot holes.
If you are mounting the helm control in fiberglass, you should
use a countersink bit as advised in the notice.
10
Remove the remainder of the template.
11
Place the included gasket on the back of the device.
You can apply marine sealant around the gasket to prevent
leakage behind the dashboard (optional).
12
Place the helm control into the cutout.
13
Securely fasten the helm control to the mounting surface
using the supplied screws.
If you are mounting the helm control in fiberglass, you should
use an anti-seize lubricant as advised in the notice.
14
Snap the decorative bezel
À
into place.
Mounting the CCU
1
Determine the mounting location.
2
Using the CCU as a template, mark the two pilot hole
locations on the mounting surface.
3
Using a 3 mm (
1
/
8
in.) bit, drill the pilot holes.
4
Use the included screws to attach the CCU to the mounting
surface.
ECU Installation
Mounting the ECU
Before you can mount the ECU, you must select a location and
determine the correct mounting hardware (
).
1
Hold the ECU in the intended mounting location and mark the
locations of the mounting holes on the mounting surface,
using the ECU as a template.
2
Using a drill bit appropriate for the mounting surface and
selected mounting hardware, drill the four holes through the
mounting surface.
3
Secure the ECU to the mounting surface using the selected
mounting hardware.
Connecting the ECU to Power
WARNING
When connecting the power cable, do not remove the in-line
fuse holder. To prevent the possibility of injury or product
damage caused by fire or overheating, the appropriate fuse
must be in place as indicated in the product specifications. In
addition, connecting the power cable without the appropriate
fuse in place will void the product warranty.
You should connect the ECU power cable directly to the boat
battery, if possible. Although it is not recommended, if you
connect the power cable to a terminal block or other source, you
must connect it through a 40 A fuse.
If you plan to route the ECU power through a breaker or a switch
near the helm, you should consider using an appropriately sized
relay and control wire instead of extending the ECU power
cable.
1
Route the connector-terminated end of the ECU power cable
to the ECU, but do not connect it to the ECU.
2
Route the bare-wire end of the ECU power cable to the boat
battery.
If the wire is not long enough, it can be extended (
).
3
Connect the black wire (-) to the negative (-) terminal of the
battery, and connect the red wire (+) to the positive (+)
terminal of the battery.
4
After you install all of the other autopilot components,
connect the power cable to the ECU.
Power Cable Extensions
If necessary, the power cable can be extended using the
appropriate wire gauge for the length of the extension.
4
