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12 V outputs
Consumer
The output to the consumers (fig. 4, pos. 4 and 8, contact 1 to
3 and 7 to 9) only carry +12 V, if the user relay has switched
on. The consumer relay only switches on if +12 V control volt-
age is applied to contact no. 4 of the 7 pole plug. User circuits
1 / 7 and 2 / 8 are each protected with a 10 A fuse, and user
circuits 3 / 9 are protected with a 15 A fuse.
Heating and immediate light
Heating and immediate light are supplied independently of the
consumer relay. They are connected to the permanent positive
(contact 4 and 10) and protected with a 10 A fuse.
Water pump
The freshwater pump (contact 5) is supplied via the pump
relay. It is protected with a 5 A fuse. This circuit is regulated
from the control panel via contact no. 7 of the 7-pole plug
(fig 4, pos 9).
Refrigerator absorber operation
Changeover switch (fig. 4, pos. 5) in A – Absorber operation
position. When the engine is running, the refrigerator is sup-
plied with power via the generator of the vehicle. After the
engine is switched off, the refrigerator relay disconnects the
refrigerator from the supply battery. The control action is via
the cable from the D+ of the generator. Thus, operating the
refrigerator at 12 V is only possible during journeys. When the
vehicle is parked, the refrigerator can only be run on gas or
mains voltage. This prevents the supply battery running down.
This circuit (contact 6) is protected by a 15 A fuse.
Refrigerator compressor operation
Changeover switch (fig. 4, pos. 5) in K – compressor operation
position. The refrigerator is supplied via the permanent posi-
tive when the main switch is turned on at the control panel.
Temperature sensor
(fig. 4, pos. 7)
If the power supply is operated together with a temperature
sensor for the supply battery, the power supply controls the
charging voltage automatically depending on the battery
temperature. This ensures a particularly effective and gentle
charging process for the battery. When not using a tempera-
ture sensor, the power supply controls the charging process
as if the battery tem-perature was 20 °C. See also section on
Charging process and Technical data.
Battery changeover switch
The selector switch (fig. 4, pos. 6) is used to set the electrical
power supply for the type of battery used, AGM / gel-battery
or liquid electrolyte battery. This affects the charging in the
post charging phase. See also section on Charging process
and Technical data.
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