Humminbird Piranha 5 User Manual

Two components need to be installed on the boat: the transducer and the control
head. The control head displays sonar information, the transducer sends and
receives sonar signals into the water. Proper installation of each insures best per-
formance of the Piranha and provides the greatest enjoyment and functionality.
Due to the wide variety of boats only general instructions are presented in
this installation guide. Each boat has unique characteristics that need to be
evaluated.
INSTALLING THE TRANSDUCER
S
TEP 1: DETERMINE TRANSDUCER LOCATION
Consider the following to find the best location on the transom:
Choose an area free of turbulent water.
•Turbulence is generated as the boat moves through the water and is confined to
area aft of ribs, strakes and rivet lines on the bottom of hull. Choose a location
on the transom where the hull forward of this location is smooth, flat and free of
protrusions or ribs.
•Turbulence is also created by the prop - try to keep at least 15” (380mm) from
the prop(s).
• The best method to locate areas free of turbulence is to watch the transom
while the boat is moving. For best high-speed performance this is
recommended. Have an assistant pilot the boat and use caution!
• Stepped hulls require the transducer be mounted on the step if possible. Never
mount the transducer on the transom behind the step.
• If propellers are forward of the transom, clear water may be impossible to find. A
different transducer or mounting method should be considered, (see optional
inside hull instructions below).
• The mounting area must be in contact with the water when the boat is on plane.
• If the boat is trailered, make sure that the transducer is not inline with trailer
bunks or roller assembles that could damage the transducer during loading
operations.
S TEP 2: FOR T RANSOM M OUNTING : D RILL THE M OUNTING H OLES
1. Remove the mounting template from the inside of the package printing. This
template provides a means of locating the two mounting holes which must be
drilled.
2. Hold the template on the transom of the boat in the location where the
transducer will be installed. Align the template vertically with the inside arrow of
the template on the deadrise where the bottom of the hull meets the transom
wall. (Figure 3 ).
3. Using a pencil or punch, mark the location of the two mounting holes on the
transom.
4.
Using a ⁵⁄₃₂ "(4mm) bit, drill the two holes to a depth of approximately 1" (3cm). On
fiberglass hulls, it is best to start with a smaller bit and use progressively larger
drill bits to reduce the chance of chipping or flaking the outer coating.
STEP 3: ASSEMBLE & MOUNT THE TRANSDUCER
1. Attach the Pivot to the transducer body, as shown in (Figure 4), using the #8 -
³⁄₈ " (9mm) long allen headed pivot screw, the headed pin, the two flat washers,
and the two toothed lock washers.
Note: The toothed lock washers must be positioned between the
transducer and the pivot ears. The flat washers must be positioned to the
outside of the pivot ears.
2. Using the Allen wrenches provided, loosely tighten the pivot screw (Figure 6). Do
not completely tighten the assembly at this time, so the pivot angle can be
adjusted later.
3. Insert the pivot/transducer assembly into the mounting bracket, as shown in
(Figure 4).
Do not snap the assembly closed.
PIRANHA 5 INSTALLATION GUIDE
You will need: Hand drill and various bits, Phillips #2 & 3 drivers, pencil, silicone sealant (for drilled
holes), 2-part, slow cure epoxy for inside hull transducer mounting, 12v DC power supply, 1 ampere
fuse.
Figure 1. Mounting locations include transom and inside hull.
DO NOT LET DEADRISE
INTERSECT THIS LINE
PLACE EITHER CORNER
ON DEADRISE ANGLE
TOP
Use 5/32" drill bit
Drill Drill
PLACE EITHER CORNER
ON DEADRISE ANGLE
TOP
Use 5/32" drill bit
DrillDrill
Level
Figure 3
Figure 4
Mounting Bracket
Pivot
Transducer
Pivot Bolt
Washer (2)
Cable
Star Washers go between
pivot and transducer.

Humminbird Piranha 5 Specifications

General

Display Size	5 inches
Sonar Type	DualBeam
Target Separation	2.5 inches
Depth Capability	600 feet
GPS	No
Water Resistance	IPX7
Display Pixel Matrix	480 x 272
Sonar Frequency	200 kHz

Summary

Transducer Installation Steps

Determine Transducer Location

Guidance on selecting the optimal transom location, avoiding turbulence and obstructions.

Drill Mounting Holes for Transom Mount

Instructions for drilling holes for transom transducer mounting, including bit size recommendations.

Assemble & Mount Transducer

Steps to assemble and attach the transducer to its mounting bracket using provided hardware.

Transducer Mounting and Cable Routing

Mount Transducer to Transom

Securing the transducer assembly to the boat's transom using mounting screws.

Adjust the Transducer

Fine-tuning transducer height and angle for optimal performance at various boat speeds.

Route the Cable

Instructions for routing the transducer cable to the control head location.

Control Head Installation: Base Assembly

Assemble the Base

Assembling the mounting base for the control head unit by inserting mount arms.

Attach Control Head to Base

Connecting the control head unit to its assembled base via pivot mechanism.

Control Head Installation: Location, Connections & Testing

Determine Control Head Mounting Location

Selecting the best location for the control head on the boat for visibility and access.

Electrical Connections

Wiring the control head to the boat's 12 VDC power supply with fuse protection.

Install the Base

Mounting the control head base onto the selected location using template.

Attach Control Head and Plug Connectors

Finalizing the control head attachment and connecting transducer and power cables.

Test & Complete Installation

Verifying basic operation and completing the installation process, including transducer submersion.

Optional Inside Hull Transducer Mounting

Install the Control Head

Instructions for installing the control head for inside hull transducer mount.

Determine Mounting Location

Finding the best inside hull location for the transducer, avoiding turbulence.

Test the Mounting Location

Performing trial installations to find optimal inside hull transducer placement.

Permanently Mount the Transducer

Permanently epoxy mounting the transducer inside the hull.

Transducer Installation Template Guide

Template Printing and Scaling

Guidance on printing and scaling the transducer installation template accurately for use.