65
7. Installation of electrical
devices
7.3
Control panel
The system consists of control electronics, a control panel with a
keypad and several peripheral panels. It enables you to operate the
different lights and several 230V devices.
Control panel for lighting system and tank level indicator
If the selector switch of the Dometic refrigerator has
been set to 12V, the refrigerator will operate automati
-
cally on 12V when the ignition of the base vehicle has
been switched on, i.e. it is not necessary to press the
main switch.
All other 12V electrical devices will only operate on the
battery of the tow vehicle if they have been centrally
activitated using the main switch on the control panel.
Functions of the main switch
• After initially connecting the caravan to the 230V mains, you must
press either the main switch or any other control key in order to
activate all of the 12V electrical devices and the 230V electrical
devices that are switched by the system (e.g. Truma Therme water
heater, floor heating
*
).
• Once the system is in operation, press the main switch briefly to
turn all of the lights off. All of the 12V steady electrical devices (e.g.
water supply, refrigerator control, heat blower) remain activated.
The devices that were previously switched on are stored in the
system; pressing on the main switch reactivates them. This also
resets the degree to which those lights were dimmed that can be
adjusted.
• Pressing the main switch for at least four seconds while the system
is switched on will turn off not only the presently activated devices,
but also the entire 12V system (also affects flushing the toilet and
water pump; in self-sufficient caravans, this will not cut off the
charging of the battery)
• If there should be a power failure, the system will remember whether
the main switch was on or off. As soon as the power is back on,
the main switch will automatically switch itself back on. Electrical
devices that continuously use current, such as the heating, will then
begin to operate again.
