7. Electrical Installations 103
After putting the electric system into operation, the function of
the residual current device must be checked. After voltage has
been applied to the switch
j
(
p. 102)
and it is on (set to I-ON)
it must set off when you press the test button
k
(
p. 102)
.
The ro
cker switch
k
(p. 101)
jumps down; after it has suc
-
cessfully been checked it must be switched back up to the
"On" setting.
This check should be carried out at least once a month to en
-
sure that the residual current device functions perfectly in case
there should be a fault in the current.
The tripping time for the residual current device (RCD)
with a residual current of 30 mA is less than 0.1 seconds.
When the residual current device has been set off (even
when testing) the customised settings in all mains-operated
devices are lost and the default settings made by the ma
-
nufacturer will apply again.
f the automatic circuit breaker has gone off (other than if you
have switched it) you must wait a short while before switching
it on again.
- If the automatic circuit breaker remains active, there was only
an overload.
Devices that set off during operation show that there is a
defect; they must be checked and/or repaired by an electrical
engineering specialist.
Switching it back on again and again will do no good. The
automatic circuit breaker also goes off when the rocker
switch is held firmly in place.
Operation when the motor is running
As soon as the motor is running, a relay connects the starter
battery and the van battery in parallel. Therefore, the dynamo
charges both batteries. If the vehicle engine is issued, both bat
-
teries are disconnected from each other again. In this way, the
starter battery cannot be discharged by equipment in the van.
The 12 V supply for the refrigerator only functions when you
are driving. If the motor has stopped, the 12 V operation of the
refrigerator is automatically turned off again.
Always turn the motor off before hooking up the 230V
mains connection via the CEE external socket.
- If the automatic circuit breaker goes off abruptly again, there is
either a short circuit or an earth fault.
