Eberspächer B1LC compact Operating Instructions Manual - page 10
Fuel supply
Divergences from the instructions set forth here are not permitted, as they can iead to malfunctions.
1. For cars w ith diesel engines, and fo r cars w ith p etrol engines having m echanical pump.
Fuel tapped from the fuel supply line to the engine.
Precondition: The fuel line from the fuel tank to the engine must be leak-free, so that there is no break in the fuel column
when the engine is not running.
Fuel connection to heater
Dimension a = max.
2 m with petrol
max.
5 m with diesel
Dimension b =
50 mm
Dimension c — max. 300 mm
Dimension d = max.
4 m with petrol
max.
6m with diesel
2. For cars with petrol injection engines and for trucks w ith diesei engines.
Tapping fuel from the supply line downstream of the delivery pump is prohibited in cars, since pressures of up to 10 bars can
occur.
The following possibilities are available:
2.1 Tapping fuel - where possible - using a separate riser pipe, fitted to the fuel tank fitting in the case of cars, an directly into
the fuel tank in the case of trucks.
Fuel connection to heater
Dimension a = max. 2 m with petrol
max. 5 m with diesel
Dimension d = max. 4 m with petrol
max. 6 m with diesel
2.2 If it is not possible to fit a separate riser pipe in the case of cars w ith petrol injection engines, the return line can be tapped
using a T-piece.
Conditions:
1. There must be no valve installed in the return line of the fuel tank.
2. The pressure in the return line must not exceed 2 bars. For pressures greater than 0.3 bars and up to 2 bars, a pressure
reducing valve {additional equipment Cat. No. 201645 89 30 00} must be provided upstream of the metering pump.
2.3 If it is not possible to fit a separate riser pipe in the case of trucks w ith diesel engines, the fuel supply line can be
tapped (as shown under 1.).
1 Fuel tank (vehicle tank or separate tank)
2 Fuel branch
3 Fuel hose, internal dia. 5 mm
Cat No. 360 75 350
4 Fuel pre-filter
(only necessary when contaminated fuel is used)
Cat. No. 25 1226 89 00 37
5 Fuel metering pump (15° to vertically upwards)
6 Fuel hose, internal dia.3.5 mm
Cat. No. 360 75 300
7 Fuel pipe, plastic, internal dia. 1.5 mm
Cat. No. 090 31118
For D 1 L C
compact
also permissible: Fuel pipe, plastic,
internal dia. 2 mm, Cat. No. 090 31117
8 Riser pipe, internal dia. 2 mm
external dia. 4 mm
9 Connection socket
external dia. 4 mm
10 Riser pipe, internal dia. 2 mm Cat. No. 25 1226 89 50 00
external dia. 6 mm
11 Fuel pipe, internal dia. 2 mm
Cat. No. 090 31125
Cat. No.
20 1645 89 35 00