Sargent EC328 User Instructions page 4

1 Template
Instructions
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8 15 Amps
9 10 Amps
10 10 Amps
11 5 Amps
12 10 Amps
The following table shows details of the fuse(s) located at the Leisure battery.
Battery 1 20 Amps
Battery 2 20 Amps
3.5 Battery
A) Type / Selection
For optimum performance and safety it is essential that only a proprietary brand LEISURE battery is
used with a typical capacity of 75 to 120 Ah (Ampere / hours). A normal car battery is NOT suitable.
This battery should always be connected when the system is in use.
The PSU is configured to work with standard lead acid leisure batteries, and in most cases is also
compatible with the latest range of Absorbed Glass Matt (AGM) batteries. Before fitting non-standard
batteries please check that the charging profile described in 3.2 is suitable for the type of battery by
referring to the battery documentation or battery manufacturer.
Some vehicle installations can cater for two leisure batteries connected in parallel. In these cases it is
recommended that two identical batteries are used.
The battery feed is fitted with an inline fuse between the battery and the electrical harness, and is
usually located immediately outside the battery compartment or within 500mm of the battery. The
maximum rating of this fuse is 20A per battery. If two or more batteries are fitted the maximum total
fusing value must not exceed 40A.
B) Installation & Removal
Always disconnect the 230v mains supply and turn the EC328PSU charger switch to the OFF (0)
position before removing or installing the battery.
When connecting the battery, ensure that the correct polarity is observed (black is negative [-] and red
is positive [+]) and that the terminals are securely fastened. Crocodile clips must not be used.
Explosive gases may be present at the battery. Take care to prevent flames and sparks in the vicinity
C) Operation / Servicing
Under normal circumstances it should not be necessary to remove the battery other than for routine
inspection of the terminals and "topping up" of the battery fluid where applicable. Please see
instructions supplied with the battery.
Note: Do not over discharge the battery. One of the most common causes of battery failure is when
the battery is discharged below the recommended level of approximately 10v. Discharging a battery
below this figure can cause permanent damage to one or more of the cells within the battery.
To prevent over discharge, the EC328 system incorporates a battery protect circuit that warns and
then disconnects the batteries when they fall below the following conditions:
Issue 01
EC328 Power Control System
Blue Pink
Red Yellow / White
Red Black / tracer
Tan Yellow / Green
Red Purple
Yellow Brown / Blue
Yellow Brown / Blue
WARNING
of the battery and do not smoke.
Page 4 of 15
Rear Lights
12v Sockets / TV Amplifier / Entertainment
Fans / Heater Fans
Ignitions Supply (Heaters / Cooker)
Toilet Pump
Fuse remotely located near battery
Fuse remotely located near battery 2
(where fitted)
June 2011