- Oct 29, 2016
- 4,701
- 58,204
- Funster No
- 45,842
- MH
- Carthago C Tourer
- Exp
- Motor Homing 5 years, caravan previously
berni109
Under normal conditions when the engine is not running the CBE unit is fed from the leisure batts, however when the engine is running power is sent from cab battery/alternator to the CBE post B1 to charge the leisure batts, run fridge etc from post B2.
With a B2B fitted the Leisure batts will be charged directly from the Cab Bat/Alternator to the leisure Batts,but not via the CBE unit which will be isolated with the new normally closed relay opening when the engine is running
The Hab electrics/Fridge will be powered when the van engine is running from the leisure batts and not the cab batt/alternator as the original feed will be disconnected replaced by the relay fed from the normally open contact from the leisure batts.
I hope that makes sense, its as the wiring diagram shows if you look at how the NO/NC relay contacts are wired.
LES
Under normal conditions when the engine is not running the CBE unit is fed from the leisure batts, however when the engine is running power is sent from cab battery/alternator to the CBE post B1 to charge the leisure batts, run fridge etc from post B2.
With a B2B fitted the Leisure batts will be charged directly from the Cab Bat/Alternator to the leisure Batts,but not via the CBE unit which will be isolated with the new normally closed relay opening when the engine is running
The Hab electrics/Fridge will be powered when the van engine is running from the leisure batts and not the cab batt/alternator as the original feed will be disconnected replaced by the relay fed from the normally open contact from the leisure batts.
I hope that makes sense, its as the wiring diagram shows if you look at how the NO/NC relay contacts are wired.
LES