Operation Manual

11
9M
otorcaravan - 09-08 - DET-0033-07EN
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
and an auxiliary charging unit as well as other control and monitoring func-
tions.
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 (Fig. 135) is installed in the
seat console under the driver's seat or the front passenger's seat.
Fig. 135 Transformer/rectifier (EBL 101)
1 Main supply socket 240 V~
2 Connections block 1: Refrigerator
3 Connections block 2: Alternator D+, sensor/control lines, refrigerator power supply
4 Connections block 4: Heater, safety/drainage valve, basic light (lighting in the
entrance area), entrance step
5 Connections block 3: Panel
6 Connections block 5: Spare 2, spare 3, spare 4
7 Connections block 9: Panel
8 Connections block 6: Solar charge regulator (if fitted)
9 Connections block 10: Solar cell (if fitted)
10 Connections block 7: Auxiliary charging unit
11 Connections block 8: Consumer circuit 1, consumer circuit 2, TV, water pump,
spare 1, spare 5, spare 6
12 Battery selector switch: "Blei-Säure/Blei-Gel" (lead-acid/dryfill)
13 Fuses
14 Battery cut-off switch: "Batterie Ein/Aus" (battery On/Off)