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ELECTRICS
52
3.3 Leisure Battery
3.3.1 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 vehicle 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.
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.
3.3.2 Installation & Removal
Always disconnect the 230v mains supply
and turn the PSU green charger switch to the
off position (button out) 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.
WARNING: Explosive gases may be
present at the battery. Take care to
prevent flames and sparks in the vicinity
of the battery and do not smoke.
3.3.3 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 EC175
system incorporates a battery protect circuit
that warns the users and then disconnects
the batteries when they fall below set values.
3.4 Generator Usage
Caution should be used before connecting a
generator to your caravan.
WARNING: Never start or stop the
generator while electrical loads are
connected and switched on. Start the
engine, let it stabilise and then connect
the electrical load. To stop the engine,
disconnect the electrical load and let
engine stabilise before switching off.
Whilst some generators use electronic
inverter technology, others use a more basic
principle to generate the 230V supply.
Preference should be to choose a generator
which produces a consistent sinusoidal wave
form with accurate voltage control.
The Reverse Polarity warning light on the
PSU may illuminate when using a Generator.
This is a normal side effect when using some
types of generator. Instead of connecting the
neutral conductor to earth, some generators
centre tap the earth connection making both
neutral and live conductors 110V above
earth. This 110V difference causes the neon
polarity indicator to illuminate.
In most cases it is safe to use a generator,
but please consult the generator handbook
for further information.
3.5 Awning Light Operation
The awning light is controlled by the control
panel awning light button. On some models
the awning light is also linked to the optional
alarm system to enable remote control with
the alarm fob.