Power Supply Details; Battery Charger - Sargent EC325 Instruction Manual

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Instructions
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3 Power Supply Details

For the safe operation of all electrical equipment within your Leisure Vehicle it is important that you
read and fully understand these instructions. If you are unsure of any point please contact your dealer
/ distributor for advice before use.
The following diagram shows the EC325PSU layout.
Under heavy loads the EC325PSU case may become hot. ALWAYS ensure the ventilation slots and
the cooling fan have a clear flow of air. Do not place combustible materials against / adjacent to the
EC325PSU. The PSU will shutdown if overheated and will restart automatically when cool.

3.1 Battery Charger

The EC325PSU incorporates an intelligent 'offline' battery charger that disconnects the leisure
equipment from the battery while it is being charged. This process allows the charger to use higher
charging voltages and to accurately control the charging current. No other equipment may be
connected directly to the battery while charging is taking place. This intelligent battery charger draws
power from the power converter (see 3.4) when the mains 230v supply is turned on and from the
vehicle alternator when the engine is running, therefore the leisure battery is always charged via the
intelligent battery charger.
Higher voltages may be present at the battery (<=18v). Do not connect ANY equipment to the battery
while the charger is operating. Failure to comply with this warning may lead to equipment damage and
Issue 02
EC325 Power Control System
DC
Fuses
WARNING
WARNING
will affect the battery charger performance.
The EC325 system also incorporates a battery compartment
temperature sensor (see photograph), which monitors the battery
ambient temperature to allow the charger to adjust the charging
current if the battery is very cold or hot.
Page 2 of 16
Power
Switch
Polarity
Indicator
System
Monitor
RCD &
3 MCB's
12 December 2008