Calira EVS 38/20-DS/IU Mode D'emploi page 30

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When the engine is running, the refrigerator is supplied with
power via the generator of the vehicle. After the engine is
switched off, the refrigerator relay disconnects the refrigerator
Fig. 3
from the supply battery. The control action is via the cable from
the D+ of the generator or via the D+ of the automatic switching.
Thus, operating the refrigerator at 12 volt 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
as well as the starter battery from running down. This circuit is
protected by a 15 A fuse.
Changeover switch to position Compressor (A01 pin 5)
The refrigerator is supplied via the permanent positive when the
main switch is turned on at the control panel.
Fig. 4
Waste water tank heating (A01 pin 15)
The waste water tank heating prevents the freezing of the waste water tank at
below freezing temperatures. The control voltage for the waste water tank
heating relay is connected to pin 8 of the 12 pole plug. This circuit is protected
by a 5 A fuse.
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