Operation Manual

Electrical system

92 Caravan - 12-11 - EN

When the transformer/rectifier is subject to a heavy load, the fitted charger module

reduces the charging current. This protects the charging device against over-

heating. The transformer/rectifier is subject to a heavy load when e.g. an empty

living area battery is charged, additional electrical appliances are turned on and the

ambient temperatures are high.

Location Depending on the model, the transformer/rectifier is situated either in the bench

or in the bedding box.

9.5.1 Battery selector switch

The battery selector switch is used to set the charger module in the transformer/

rectifier to the type of living area battery installed in the vehicle ("lead acid" or "dry-

fill" battery).

9.5.2 Charging the battery

During driving the towing vehicle generator charges the living area battery. If the

engine of the towing vehicle is switched off, the transformer/rectifier separates the

starter battery of the towing vehicle from the living area battery so that discharging

of the starter battery of the towing vehicle through usage of 12 V living area appli-

ances is not possible.

When the vehicle is connected to the 230 V supply, the transformer/rectifier

charges the living area battery.

9.6 Panel LT 109 (Power Pack SE)

Z Further information can be obtained from the separate instruction manual

"Transformer/rectifier".

X If the battery selector switch is set incorrectly, oxyhydrogen gas (exploding

gas) can form. Danger of explosion!

Z Incorrect setting of the battery selector switch damages the living area battery.

Z Do not change the factory setting of the battery selector switch.

Z The power supply unit is not used to charge the starter battery of the towing

vehicle.

Fig. 93 Panel LT 109

1 12 V main switch

2 12 V indicator lamp

3 Battery charging condition indicator

4 Rocker switch for battery display

5 Tank volume indicator

6 Rocker switch for tank level indicator

12V Batterie Tank

EIN

AUS

1 2 3 4 5 6