Operating manual for caravan-charging system CSV 410
5
Date: 20.02.2020
8050102 BA / EN
3.1
Battery functions
6-cell lead acid or lead gel batteries, 80 Ah and above
Charging the caravan battery whilst driving; increasing the supply voltage
coming from the towing vehicle via the battery booster
The 12 V main switch (rocker switch with centre position on the control and
switch panel) disconnects all the 12 V consumers from the caravan battery
(exception: the fridge controller electronics).
This prevents the caravan battery from being slowly discharged by standby
currents.
The batteries can still be charged using the caravan charging system, the
towing vehicle or the solar charger, even when the main battery switch is
OFF.
The switching option provided by the battery selector switch ensures opti-
mum charging of the two battery types, lead gel and lead acid.
The consumers are switched off (except for the refrigerator) when the cara-
van is hitched to the towing vehicle and the ignition is switched on (power on
terminal 10 and trailer hitch TH). Consumers can be switched on again at
any time (the automatic disconnector does not prevent this).
No standby current when towing vehicle ignition is off; additional current con-
sumption by the fridge’s control electronics (see documentation supplied by
the fridge manufacturer);
Measured when all the consumers inside the caravan are switched off.
Caravan battery
Characteristic charging curve
IUoU
End of charge voltage
14.4V*
Charging current
28 A
Voltage for float charge
13.7V* with automatic switch function
*Until 03/2020:
Final charging voltage 14,3 V; trickle charge voltage 13,8 V
Charging current typ.
8 A
3.2
Additional functions
This output supplies the control electronics of a fridge:
F
From the caravan battery
F
From the towing vehicle’s battery when the ignition is switched on
F
From the mains supply when it is connected up
Y
The refrigerator only operates on 12 V when the caravan is hitched to the
towing vehicle and the ignition is switched on.
Suitable batteries
Battery charging
whilst moving
12V main switch
Battery selector switch
Automatic disconnector
Standby current from
towing vehicle battery
Battery charging via
mains connector
Battery charging via
towing vehicle operation
Refrigerator controller
