lock FIAT MULTIPLA 2007 1.G Natural Power Manual

8
SAFETY DEVICES/SOLENOID VALVE
A solenoid valve has been screwed onto each bottle, which cuts off the
natural gas flow towards the engine feed circuit.
The solenoid valve is open when:
❐the switching button is in the “Natural gas” position
❐the pressure inside the bottle is enough for functioning
❐the engine is running
❐the inertia switch has not tripped.
The solenoid valve unit features the following safety devices:
1) Fuse plugnut: in case of anomalous overtemperature (higher than
110°C), this device will fully eliminate any overpressure hazard by
causing the natural gas contained in the bottle to flow outwards as fast
as possible.
2) Excessive flow: this device comes into operation in case of pipe
breakage, by reducing the natural gas outgoing flow to non-hazardous
values. The flow relief valve is placed in such a position that it can
operate even when the solenoid valve body is broken following a
collision.
3) Manual cock: it is positioned upstream the solenoid valve.
It separates the bottle from the natural gas system to allow the
maintenance operations to be carried out.
To turn cock (A) off, rotate clockwise (position 1).
To turn the cock on, rotate counterclockwise (position 2).
4) Non-return valve, positioned on the pipe running from the filling pipe
union, to prevent the natural gas from flowing back.F0E0572m
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12
FUEL CUT-OFF SWITCH
The safety switch will be tripped in case of vehicle
collision and will cut off natural gas supply, thus causing
the engine to be switched off.
For further information, refer to the Owner
Handbook, chapter “Dashboard and controls”,
paragraph “Fuel cut-off switch”.ENGINE STARTING
To start the engine correctly, refer to the warnings
and recommendations provided in the Owner
Handbook, chapter “Engine starting”.
Emergency starting
If the Fiat CODE system is not able to deactivate the
engine lock, warning light ¢will remain ON and the
engine won’t start. Refer to the Owner Handbook,
chapter “Emergency starting”.
WARNINGThe Natural Power Fiat Multipla engine is always started by using petrol, even
when the switch is set to the “Natural gas” position; in this case, the green LED on
the switch will indicate that the engine is fuelled by petrol and will remain such
until automatic switching to natural gas has taken place: now, the green LED on
the switch will go out.
Therefore, it is required that reserve fuel is always available in the petrol tank.
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13
AT THE FILLING STATION
NATURAL GAS FILLING PIPE UNION
The natural gas filling pipe union (B) is located next to the petrol pipe
union and can be accessed by opening the fuel lid.
It is equipped with a dual “non-return” valve: one fitted into the pipe
union body itself; one located next to the bottle, at the start of the filling
pipe.
To gain access to pipe union (B), unscrew cap (A).
The contour of pipe union (B) is of the “multi-purpose” type.
During filling up, natural gas pipe union cap (A) can be positioned directly
on the lid, as illustrated.
In certain European States, the adaptors are considered ILLEGAL (e.g.
Germany).
In the case of service stations equipped with m
3gas guns (with dissolved
air pressure) so as to verify the residual pressure in the gas bottle, the
non-return valves must be unblocked by supplying a small quantity of
Methane.
The other plates (delivered with the vehicle documents) indicate the
expected date for the first testing/inspection of the gas bottles.
The employees assigned to the Methane supply are not authorised to fill
the gas bottles with the test date expired.
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23
CO2 EMISSIONS
The CO2 emission values, shown in the table below, refer to the average
combined consumption.
CO
2emissions according to the EC Directive 1999/100/CE (g/km)
Persons transport version:
Natural gas .................................................................................................. 161
Petrol ............................................................................................................ 216
FUSES
The Natural Power version makes use of special fuses to protect the
various components of the system.
Control unit next to the battery
To open, press the two locking tabs (A) and take the cover off.
The fuses protect:
1 - 7.5 A Fiat code control unit
2 - 10A ABS
3 - 20A Headlamp washing pump
Fuses on the passenger compartment partition wall.
The fuses protect:
4 - 7.5A Gas solenoid valves
5 - 5A Gas injection control unit
6 - 15A Electric injectors
7 - 5A + 15 CCM and Fiat code control unit
8 - 15A Oxygen sensor
9 - 10A Petrol pump
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