Component Layout; Single-Helm Layout; Dual-Helm Layout Guidelines - Garmin GHP 20 Marine Autopilot System with SmartPump Installation Instructions Manual

Item Description
Pump power cable
Alarm
Shadow Drive

Component Layout

Single-Helm Layout

NOTE: This diagram is for planning purposes only. 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
Pump
12–24 Vdc battery The pump can be connected to a 12–24 Vdc power source.
The NMEA 2000 power cable must be connected to a 9–16 Vdc power source.
CCU The CCU must be installed in the front half of the boat, no higher than 10 ft. (3 m) above the waterline.
NMEA 2000 Network The helm control and the CCU must be connected to a NMEA 2000 network using the included T-connectors
If there is not an existing NMEA 2000 network on your boat, you can build one using the supplied cables and
connectors

Dual-Helm Layout Guidelines

NOTE: This diagram is for planning purposes only. Specific connection diagrams are included in the detailed installation instructions
for each component. Hydraulic connections are not shown in this diagram.
Important Considerations
The pump can be connected to a 12–24 Vdc power source. To extend this cable, use the correct wire gauge
(page 13).
See page 11 for alarm-wiring information.
See page 12 for Shadow Drive wiring information.
(page 12).
(page 2).
5