Product Manual
3.13 Fuel supply
Danger!
Risk of fire, explosion, poisoning and injury!
Caution when handling fuel.
Æ
Switch off the vehicle engine and the heater before refuelling and
before working on the fuel supply.
Æ
No naked flames.
Æ
Do not smoke.
Æ
Do not inhale petrol fumes.
Æ
Avoid any contact with the skin.
3.13.1 Installing the metering pump
Caution!
Always note and follow these safety instructions when installing
the metering pump and when laying the fuel lines. Deviations
from the instructions are not allowed. Failure to comply can
result in malfunctions.
Æ
To install the fuel hose at the heater, moisten it and push it
carefully onto the fuel connection socket.
Æ
Cut the fuel hoses and pipes to length at right-angles and burr-
free. The cut places must not be pressed in.
Æ Wherever possible, lay the fuel lines from the metering pump to
the heater with a continuous rise.
Æ Fix fuel lines securely to avoid damage and / or noise due to
vibrations (Recommendation: fixing points at spacing of approx.
50cm). Especially in electric vehicles, fix the fuel lines so that
sound transfer to the vehicle is prevented.
Æ Protect the fuel lines against mechanical damage.
Æ Lay the fuel lines so that any twisting of the vehicle, engine
movements, etc. do not have a disadvantageous effect on their
durability.
Æ Use screw clamps to secure all hose connections of the fuel
supply.
Æ Protect parts carrying fuel from interfering heat.
Æ Never route or fasten the fuel lines along the exhaust systems of
the heater or vehicle engine.
Æ Where fuel lines cross the exhaust system, always ensure
sufficient thermal clearance, if necessary attach heat deflection
plates.
Æ Dripping or evaporating fuel must never be allowed to collect on
hot parts or ignite on electric equipment.
Æ When connecting fuel lines to a fuel hose, always install the fuel
lines with a butt joint to prevent any bubbles from forming,
see
Picture 19
.
Picture 19
1 correctly laid lines
2 incorrectly laid lines – bubbles form
Caution!
Safety instructions for fuel lines and fuel tanks in buses and
coaches!
Æ
Fuel lines and fuel tanks must not be located in the passenger
compartment or driver’s cab.
Æ
Mount the fuel tank in the vehicle so that the normal passenger
exits and emergency exits are not at risk in the event of a fire.
Note
The installation kit contains all parts required for the fuel supply.
Follow the regulations and safety instructions for this chapter
from
page 9
.
Sound insulation and abrasion protection: Sponge rubber hose
for fuel lines available separately as an accessory (see product
information).
3.13.2 Preferred fuel extraction with tank connector or adapter
(diesel, petrol)
Caution!
Fuel supply safety instructions!
The fuel must not be conveyed by means of gravity or
overpressure in the fuel tank.
Æ The fuel may only be pumped by the metering pump included in
the scope of supply and approved by the manufacturer.
25.2933.90.0001.0A EN | 06.2018 25
Technical Description | Hydronic S3 Economy