71
MONTEREY
BOATS
Electrical System
Batteries and Battery Switches
328SS models are equipped with three batter-
ies and four battery switches, a switch for each
engine, a battery switch for house and accessory
circuits and an emergency parallel switch. An au-
tomatic isolator/relay controls the charging of the
house batteries whenever the starboard engine is
operating. The port engine battery is dedicated
to starting and operating the port engine. It is
charged by the port engine whenever the port en-
gine is operating. The port and starboard engine
batteries can be temporarily connected in parallel
by the EMERGENCY PARALLEL switch to provide
additional starting current for each engine. The
engine and house batteries are also charged by
the battery charger whenever it is operating.
When in port or at anchor, the port and starboard
engine battery switches should be OFF. Only the
battery switch that activates the house and ac-
cessory circuits should be ON. This will keep both
engine starting batteries in reserve for starting the
engines. If the house battery becomes discharged
to the point that accessories stop operating prop-
erly or the optional generator will not start, the
starboard engine can be started to recharge the
house battery.
NOTICE:
Current is supplied to the high water alarm
pumps, the electronic corrosion controllers
and the cabin CO monitor when the batter-
ies are connected and the battery switches
are off.
To connect the batteries in parallel to start the en-
gine, make sure the ENGINE battery switches are
ON, then turn the EMERGENCY PARALLEL switch
to ON and start each engine. Once the engines
have started and systems have stabilized, turn
the EMERGENCY PARALLEL switch OFF.
Once the starboard engine is running, the alterna-
tor will charge the starboard engine battery. As
the voltage in the battery raises to a preset level,
the automatic isolator relay between the starboard
engine battery and the house batteries will close
and direct charging current to the house batteries.
The starboard engine battery and house batteries
will continue to be charged until the engine is shut
down and the automatic relay opens, isolating the
328SS Battery Switch Panel
house batteries from the engine battery. The port
engine battery will be charged by the port engine
charging system.
The DC electrical system on the 328SS is designed
for wet cell, gel cell or AGM marine batteries. The
battery charger is equipped with a switch to select
the type of batteries to be charged. The batteries
will be damaged if the charger is not set properly.
You should refer to the battery charger owner’s
manual to make sure the charger is set to the type
of batteries in your boat and do not mix the type
or brand of marine batteries.
The batteries were installed by your dealer. Labels
for the batteries required to power the house and
engine electrical systems. Always consult your
dealer before changing the type of batteries in
your boat or if you have questions regarding the
batteries.
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