Volvo Penta D4 - Active Corrosion Protection

Active Corrosion Protection
Active Corrosion Protection (ACP) is a system
developed to provide optimum sterndrive unit
corrosion protection in salt water and brackish water.
ACP has three levels of protection that can be
monitored by the boat's electrical system. Presentation
of protection status on boat displays can be selected in
Vessel View.
When the system is active a small amount of chlorine
gas is given off. If the smell is disturbing, the ACP
function can be temporarily switched off. For more
information refer to Setting Protection Level. The
system may be switched off for a maximum of 4 hours
during which time the sterndrive unit is protected
against corrosion by means of the secondary system,
refer to Protection Levels for more information.
The ACP reverts automatically to normal mode after 4
hours. If you wish to leave chlorine-free mode earlier
do so via the settings menu or by switching on the
ignition.
When berthed, the boat should be connected to shore
power where provided. If shore power is lacking the
ACP uses the boat's batteries. If the batteries begin to
run down, disconnect the ACP and switch to the
secondary system.
NOTICE! To avoid false alarms from the system when
running in freshwater environments where corrosion is
not so aggressive the function should be rendered
inactive. The sterndrive unit is protected by the
secondary system even when ACP is inactive.
Set the ACP to normal mode if the boat is move to a
more aggressive environment.
Optional
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