OWNER’S MANUAL
SYSTEM OPERATING INFORMATION
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3237 • X6 02/2018
Generator Battery Master
Disconnect Switch
Figure 7-4
Automatic Charging Relays
Automatic Charging Relays (ACRs) allow both 12-volt
engine alternators to simultaneously charge both engine
battery banks and the thruster/windlass/swim lift battery
bank. These battery banks are also charged by their
dedicated 12-volt battery charger whenever the charger
is turned on and either shore AC power or generator AC
power is available. The battery charger charging current
is not regulated by the ACRs. The ACRs regulate only the
alternator output current. The battery charger has its own
voltage regulation and isolation system built into it.
Generator Automatic
Charging Relay
Figure 7-5
Engines Automatic
Charging Relay
Accessory Automatic
Charging Relay
Figure 7-6
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