Fuel Switch-Over Temperature; Overrev Option; Automatic Switch Back To Petrol Option - A.E.B. AEB215 Manuel D'utilisation

OPTIONAL CONFIGURATIONS
SETTING DESCRIPTION
FUEL SWITCH-OVER TEMPERATURE (Fig. 42)
Indicates the temperature that the pressure regulator must reach
before the system is automatically switched to GAS mode.
To utilize this option, it is necessary to have a regulator provided with
appropriate temperature sensor.
OVERREV OPTION (Fig. 43)
When catalysed fuel injection vehicles reach a predetermined RPM,
an electronic governor is engaged which, depending on the vehicle,
may act either on ignition or on fuel injection.
The purpose of this governor is to prevent the engine from reaching
a dangerously high RPM, thus preventing engine damage.
During GAS operation, the governor is disabled if it achieves governing
by using the fuel injectors, while it could cause backfires if it achieves
governing by controlling ignition. It is therefore necessary to offer
the option that allows an automatic switchover from GAS to PETROL
when approaching the threshold at which the governor is supposed
to engage. In this way, the governing function is preserved because
the engine is running on PETROL.
OVERREV CONTROL THRESHOLD (Fig. 44)
Indicates the number of engine RPM at which the LEONARDO E.C.U.
switches automatically from GAS to PETROL.
This function is displayed only when the OVERREV option is enabled.

AUTOMATIC SWITCH BACK TO PETROL OPTION

(Fig. 45)
By enabling this option, the LEONARDO E.C.U. automatically switches
to PETROL when the GAS LEVEL decreases to a predetermined value.
ALT. FUEL LEVEL TO SWITCH BACK TO PETROL
(Fig. 46)
This number indicates the value of the GAS LEVEL at which the E.C.U.
automatically switches from GAS to PETROL.
54 - 188
LEONARDO
FUEL SWITCH-OVER
TEMPERATURE
30
Fig. 42

OVERREV OPTION

ENGAGED
Fig. 43
OVERREV CONTROL
THRESHOLD
6000 RPM
Fig. 44
AUTOMATIC SWITCH BACK
TO PETROL OPTION
ENGAGED
Fig. 45
ALT. FUEL LEVEL TO
SWITCH BACK TO PETROL
12
Fig. 46
Is215-2 Rev. 110105-2