Operation Manual

1
16 Motorcaravan - 09-08 - DET-0033-07E
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Electrical system
9
Functions The transformer/rectifier has the following functions:
The transformer/rectifier charges the living area battery. The transformer/
rectifier charges the starter battery with a float charge only.
The transformer/rectifier monitors the voltage in the living area battery.
The transformer/rectifier distributes the current to the 12 V circuits and
secures them. Devices with a maximum of 10 A can be connected to the
sockets.
The transformer/rectifier contains connections for a solar charge regulator,
an auxiliary charging unit as well as other control and monitoring functions.
When the engine is turned off, the transformer/rectifier separates the
starter battery electrically from the living area battery. This prevents the
12 V living area appliances from discharging the starter battery.
The transformer/rectifier only works in conjunction with a panel.
When the transformer/rectifier is subject to a heavy load, the fitted charger
module reduces the charging current. This protects the charger from over-
heating. The transformer/rectifier is subject to a heavy load when e.g. an
empty living area battery is being charged, additional electrical appliances are
turned on and the ambient temperatures are high.
Position Depending on the model, the transformer/rectifier is located in the seat con-
sole under the driver's seat or the front passenger's seat.
Fig. 134 Transformer/rectifier (EBL 99)
1 Main supply socket 240 V~
2 Output: Block 1 - refrigerator
3 Input: Block 2 - control lines, alternator D+
4 Output: Block 4 - heater, safety/drainage valve, basic light (lighting in the entrance
area), entrance step
5 Output: Block 3 - panel
6 Output: Block 5 - solar cell (if fitted), spare 2, spare 3, spare 4
7 Output: Block 6 - solar charge regulator (if fitted)
8 Output: Block 7 - auxiliary charging unit
9 Output: Block 8 - consumer circuit 1, consumer circuit 2, TV, water pump, spare 1,
spare5, spare6
10 Battery selector switch ("Blei-Säure/Blei-Gel" (lead acid/dryfill)
11 Fuses
12 Battery cut-off switch ("Batterie Ein/Aus" (battery On/Off))