7. Electrical Installations
104
Operation via ancillary battery
• Only accumulator batteries with bound electrolytes (gel
batteries) may be installed in those positions specified
by the manufacturer.
• The installed gel battery may not be opened.
• When changing ancillary batteries, use only batteries of
the same make and capacity. (Setting the battery type
on the control panel: see
p. 81
)
• Before disconnecting or connecting the auxiliary battery,
switch off the motor, 230V supply, 12V supply as well as
all electrical devices.
• Before replacing fuses you must first de-energise the
charger.
• Before replacing a blown fuse you must first fix whatever
caused the fuse to blow.
• Fuses may only be replaced by fuses with the same fuse
protection value.
• Airing the charger insufficiently will reduce the charge
current.
• The surface of the charger casing may become hot when
the device is in operation.
To charge a discharged van battery optimally while driving,
disconnect the 12 V operation of the refrigerator and turn
off as much equipment as possible that uses 12 V.
Checklist
• Turn off the motor.
• Switch on the 12 V master switch.
• Turn off all equipment that uses 12 V.
• Start the motor.
The voltage of the van battery must rise if
- the engine speed is above the idling speed,
- the vehicle‘s battery is not completely discharged.
The control panel shows whether or not the generator has
been charged. If this is not the case, please check the following:
• Is the 50A fuse in the supply line to the ancillary battery
near the motor battery functioning properly?
• Is the “Motor running” signal on the input module on?
