Control System - MAX power COMPACT RETRACT 12 V Mechanical And Electrical Installation Manual

Please note that panels are only fully waterproof from the front, if installed correctly.
However the area behind the dashboard should be kept dry to avoid the risk of oxidation
of the cable connecter contacts.
For full installation instructions of the control panels please refer to "Installation Guidelines"
as supplied with each control panel.
4.3

CONTROL SYSTEM

For the wiring of the 12V electronic control box, ref. 312951, and the of 12V
command system, please refer to the diagrams "Compact Retract, 12/24: Electronic
Control Box Connections" and "Compact Retract12/24V: Control Wiring" page 20.
Install the thruster control box as close as possible to the thruster unit and thruster relay box
in a dry area above the waterline.
All wires should be carefully labeled to reduce the chance of error and simplify checking and
troubleshooting. Try to use the color scheme as used on the control wiring diagram in order
to facilitate future maintenance and troubleshooting.
All wire ends for terminals should be tinned before crimping or inserting into terminal
blocks. The wire dimensions should be of the specified dimensions.
Install a double pole breaker/isolator in the supply wiring of the thruster control box on the
boats' main electrical switchboard marked BOW THRUSTER: Please keep in mind the
voltage drop in cable run from control box to main electrical switch board. For CR70 and
CR85 models the command circuit (control panel, control box, up/down servo
motor) is always 12V powered.
This breaker/isolator should ideally be supplied from an independent battery bank, to the
one used for powering the thruster unit.
The installer must protect the positive supply cable of the thruster control box by means of a
fuse (8 A) as indicated in the above mentioned diagrams. The size of the supply wires (red &
black) depends on the length of the cable run, the voltage drop in these cables should not
exceed 5% of the nominal battery voltage.
For safety reasons and in order to benefit from all the functions provided by the
thruster's electronic controller, an electric battery isolator needs to be installed in the
thruster motor's positive supply cable.
It is important to isolate the thruster motor power circuit by means of a battery
isolator(manual/electric) after having left port & when the maneuver is finished, after docking.
Please Note: All wiring must be insulated from ground and should be installed in compliance
with acceptable standards that require all junctions to be in waterproof boxes equipped with
glands. All wiring should be kept outside of bilge's and other habitually wet areas.
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