The
Battery Charging System
240v AC
The 240v AC is supplied to the
van from the power inlet located on the roadside of the van.
A 15amp power lead is required
for connection. Once connected, the circuit breaker inside the van must be
turned on.
Two breakers have been fitted.
The first is an Earth leakage breaker, which is the main on-off switch. This
has a small test button, which will trip the breaker when pressed. This will
turn all 240v power to the van off.
The second breaker is for the
air-con, this breaker will turn off the power to the air-con and is separate to
the power points.
At the centre of the 12v system
is a three-stage transformer. The transformer is the distribution centre for
the 12v in the van with exception of the indicators and brake lights etc.
The transformer will
automatically switch in three stages with stage 1 its first preference and
stage 3 being the last.
STAGE 1
When 240v C is present the
transformer will convert 240v AC to 12v DC. This will power all 12v fittings in
the van. In this stage, 12v will also be sent to charge the battery in the van.
STAGE 2
When the van is connected to a
tow vehicle and 240v AC is absent, the transformer will draw power from the tow
vehicle. This will send power to all 12v fittings in the van and send 12v to
charge the caravans battery. (Flatten cars battery).
STAGE 3.
The final stage is when no
power sources are present from 240v AC or from the tow vehicle. The transformer
will draw charge from the caravan battery to power all 12v fittings.
Transformer Isolation Switch.
Located on the face of the
cabinet where the transformer is fitted is the transformer 240v isolation
switch. This switch allows easy access to turn off the 240v supply to the
transformer. When this is turned off, the transformer will switch to stage 3
and use 12v from the caravan battery.
Battery Isolation Switch.
Located on the face of the
cabinet where the battery is fitted is the battery isolation switch. When
turned off, no power can be drawn from the battery; also no charge can enter
the battery. This switch can be used to save the charge in the battery when the
van is not in use.
Battery Indicator.
Located on the face of the
cabinet where the battery is fitted, is the battery indicator. This indicates
the amount of charge in the battery. The transformer must be turned off and the
van should be disconnected from the tow vehicle.
Transformer fuses.
Located on the face panel of
the transformer are the fuses. The top fuse is for supply to the caravan
battery. The four fuses below are for all other 12v fittings in the van.
When 240v AC or gas is selected
the fridge will be able to cool the selected temperature level. Use these 2
stages when the van is stationary. When in transit the 12v stage should be
used.
This stage will maintain the
temperature of the fridge while the van is being towed.
The fridge must be cooled
before 12v is selected, as this is only to maintain the temperature while
travelling.
Avoiding unwanted battery drain when
towing.
When stopping for more than 10
minutes, it is recommended to turn the fridge from 12v DC to gas or 240v if
available. This will avoid drain from the van battery and tow vehicle battery.
BATTERIES.
J1901 80AH
Using the 12v Battery only
When the caravan is not
connected to a 240v power supply (park or home), 12v power from the battery is
supplied direct to all caravan appliances other than the microwave oven and
air-co unit.
Using a 240v External supply
With the caravan connected to
the mains power supply, the combined main earth-leakage and circuit breaker
must be turned on. Any overload to the 240v circuit will cause this switch to
trip.
Power can now be transferred to
the charger and the 240v sockets, including the 240v supply for the
refrigerator. You can now use the individual switches to activate all
appliances.
While the 240v supply is
connected, the battery charge is maintained by the built-in charger, which
automatically regulates the trickle charge.
Pre-chill the empty
refrigerator for at least 8 hours before using it.
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