Humminbird HELIX Series Installation Manual page 3

HELIX® SERIES CONTROL HEAD Installation Guide
1. Confirm that the power cable is disconnected from the control head.
2. Connect the power cable wires to the fuse panel or battery as follows:
Fuse Terminal Connection: Use crimp-on type electrical connectors (not included) that match
the terminal on the fuse panel. Attach the black wire to ground (–), and the red wire to positive
(+) 12 VDC power. Install a 3 Amp fuse (not included).
Battery Connection: Install an inline fuse holder (not included) and a 3 Amp fuse (not included).
Attach the black wire to ground (–), and the red wire to positive (+) 12 VDC power.
NOTE: For multi-control head installations and troubleshooting information, download the Power
Troubleshooting Guide from our Web site at humminbird.com. Also, see the Operations Summary
Guide to set the Low Battery Alarm and use Standby Mode to conserve power.
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| Route and Connect the Cables
1. Sonar Models: Connect the transducer cable to the transducer port on the control head. The
ports are labeled and the connectors are keyed to prevent incorrect installation, so do not force
the connector into the wrong port.
NOTE: See your transducer installation guide for details on routing the transducer cable.
Optional: If you are installing the Speed Sensor accessory, you will need the Sonar/Speed
Y-Cable (separate purchase required). Connect the transducer cable connector and the speed
sensor cable connector to the corresponding connectors on the Y-Cable.
2. Accessories (optional): Install optional accessories using the guides provided with them.
3. Ethernet Models (optional): Install Ethernet cables and hardware using the Ethernet Installation
Guide.
4. Route all cables (power, transducer, accessories, Ethernet) to the control head. Your boat may
have a pre-existing wiring channel or conduit that you can follow. Route the cables as far as
practical from the antenna cable of VHF radios or tachometer cables to reduce the possibility
of interference.
CAUTION! Do NOT mount the cables where the connectors could be submerged in water or flooded.
If cables are installed in a splash-prone area, it may be helpful to apply dielectric grease to the
inside of the connectors to prevent corrosion. Dielectric grease can be purchased separately from
a general hardware or automotive store.
5. Pass the cables through the cable hole.
If you routed the cables through a hole under the bracket, finish the bracket and control head
installation. See Install the Gimbal Bracket, step 4 and step 5.
6. Insert the cable connectors into the correct ports on the control head. Refer to the illustration
that matches the number of ports on your control head.
Control Head with 3 Ports
COM
(communications)
Power
Optional: Use a Y-Cable to connect
Transducer and Speed Sensor Accessory
7. Confirm there is enough cable slack to allow for the control head to pivot through its full tilt
range and for connecting or disconnecting the cables.
Control Head with 4 Ports (includes Ethernet)
Ethernet
Transducer
COM
(communications)
Power Transducer
Optional: Use a Y-Cable to connect
Transducer and Speed Sensor Accessory
532312-5_A
Fuse Terminal Connection
G R O U N D
Battery Connection
inline fuse holder
Routing Cables to the Control Head
grommet
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