Electrical Installations
07-16
Thevoltageofthecaravanbatterymustriseif
- theenginespeedisabovetheidlingspeed,
- thevehicle‘sbatteryisnotcompletelydischarged.
Ifthisdoesnothappenafterusingthedynamotochargethe
battery,checkthefollowing:
• Isthe50Afuseinthesupplylinetotheancillarybattery
nearthemotorbatteryfunctioningproperly?
• Isthefusedistributionpaneldisplayingthe“Motorrun-
ning”signal?
Operation by means of a 12 V caravan battery
Alloftheequipmentisautomaticallysuppliedfromthecaravan
batteryifthemotorhomeisstandingstillwithouta230Vmains
supplyandwithitsengineturnedoff.The12Vmasterswitch
mustbeswitchedon.
Thecaravanbatteryshouldonlybeallowedtodischargeto
avoltageof11V.Atthispoint,youshouldensurethatitis
rechargedfromthedynamoorfrompublicsupply.
Operation when the motor is running
Assoonasthemotorisrunning,arelayconnectsthestarter
batteryandthecaravanbatteryinparallel.TheD+signalsits
close to the dynamo. Therefore, the dynamo charges both
batteries.IftheD+signalnolongersitsclosetothedynamo,
thetwobatterieswillbeseparatedfromeachotheragain.In
thisway,thestarterbatterycannotbedischargedbyequipment
inthecaravan.
The12Vsupplyfortherefrigeratoronlyfunctionswhenyou
aredriving.Ifthemotorhasstopped,the12Voperationofthe
refrigeratorisautomaticallyturnedoffagain.
To charge a discharged caravan battery optimally while
driving,disconnectthe 12Voperationoftherefrigerator
andturnoffasmuchequipmentaspossiblethatuses12V.
Checklist
• Turnoffthemotor.
• Turnoffallequipmentthatuses12V.
• Startthemotor.
Ifthevehicle'smotorisrunning,therefrigeratorwilloperate
automaticallyon12V,i.e.itisnotnecessarytopressthe
mainswitch.Inthiscase,theselectorswitchfortherefrige-
ratormustbesetto12Voperation.Allother12Velectrical
deviceswillonlyoperateonthevehiclebatteryifthemain
switchhasbeenactivated.