Specifications

WPOperatingManual Page - 21 - Revised: August 12, 2009
2. Shore Power
The yacht can be plugged into 110 volt shore power. The power cable and connecting plug is in the
starboard cockpit locker. The battery charger that operates off of the shore power is located in
Compartment 1 in the aft starboard cabin. It can operate on either 50 cycle or 60 cycle power.
The charger is also an inverter that can supply limited AC current to the boat outlets when not
connected to shore power. This feature must be used sparingly as it takes 10 amps of battery power to
furnish 1 amp of AC power and the house batteries can be completely depleted very quickly if the
inverter is used for even modest loads without the engine running. With the engine running the AC
load should not exceed 15 amps for more than 10 minutes or the inverter will overheat and shut down.
The electrical box containing the four shore power breakers is located in the electrical panel on the
starboard side of the main cockpit above the navigator table. These breakers are for the shore power
source, battery charger, outlets and water heater. Select the systems you want to operate and turn the
switch to the “on” position. When the shore power is not in use please turn all breakers to the “off”
position.
3. Battery Charger/Inverter
The Freedom 1500 battery charger/inverter is located in Compartment 1 in the starboard aft cabin. It is
controlled by a Link Controller located in the main panel at the bottom left side. When not being used,
the inverter should be turned off at the Link Controller as it consumer about 0.5 amps in stand-by
mode. The battery charger switch should be left on at all times as the Link Controller controls the
charging of the batteries both when shore power is being used and when the batteries are being charged
through the engine alternator.
The inverter should not be operated with high loads when the engine is running. The inverter shares
electronic components with the battery charger and the unit will overheat if both the charger circuit and
the inverter circuits are being used simultaneously.
The Link Controller manages all aspects of the battery system. Instructions for its operation are in the
Windward Passage equipment files. All operations are automatic and the unit should not have to be
adjusted in any way. You can select which battery is being displayed and can then display battery
voltage, amperage to (+) or from (-) the battery, total cumulative amp-hours from full charge (-) as
well as several other informational items. Normally the display is left reading the house battery
charging/discharging rate.
The batteries should not be discharged below 50% of their maximum capacity. For the house battery
bank the capacity is 360 amp-hours. One should check the status of this bank several times a day and
should recharge the batteries when the amp-hour reading approaches -180 amp-hours. When the
batteries are fully charged the amp-hour reading will be zero or slightly positive.
The starting battery is charged as an echo charge when the alternator is running (or when plugged into
shore power). It should not be allowed to go below – 20 amp-hours.