Instruction manual caravan distributor CV 304 with switch panel
5
Stand: 24.06.2016
8120065 BA / EN
Fault RemedyPossible cause
Pump cannot be switched
on
12V main switch is off 12V main switch must be
switched on
Pump switch disabled Turn on pump switch
Circuit 1 safety fuse defec-
tive
Replace circuit 1 (5A) sa-
fety fuse
Switch defective in the re-
levant water tap
Contact workshop/dealer
Pump defective Contact workshop/dealer
4 Application and functions in detail
CV 304
+--
+--
Caravan distributor
12V consumers
Caravan battery
Starter battery
Lighting
Pump
Heater
etc.
Towing vehicle
230V AC
External
Charger
External
power supply
unit
or
230V AC 230V AC
Tow bar (AHK)
Main and
Pump switch
Figure 2 On-board power supply system
Y
This device is intended for permanent installation in a caravan.
The CV 304 caravan distributor is the central power distribution unit for all
consumers (12V and 230V) in the caravan’ s electrical system. It is usually
located inside a cupboard or storage area, and is accessible from the front in
order to change fuses and to access the main switch.
The caravan distributor is only designed for connection to the 12 V power
supply.
Connected devices can be supplied via a battery installed in the caravan or
via the towing vehicle’s battery. Switchover is automatic on connecting the
plug to the towing vehicle (requirement: 13-pole connector, connected in ac-
cordance with EN 1648-1 -- voltage at pin 10 with ignition switched on).