Fuel Supply; General Information - Webasto Thermo 90 ST B Installation Manual

Fuel Supply

8. Fuel Supply

8.1 General Information

The values for the maximum pressure at the fuel
extraction point are shown in the table below and in
Figure 17.
Permissible fuel inflow
height H
0.00 m (0.00 in.)
1.00 m (39.4 in.)
2.00 m (78.7 in.)
Maximum fuel intake
height S
0.00 m (0.00 in.)
0.50 m (19.7 in.)
1.00 m (39.4 in.)
The fuel is taken from the vehicle fuel tank or from a
separate fuel tank. The exploded view in Figure 16
Illustrates the progression of fuel system components.
A sign must be affixed to the fuel tank's filler neck
warning that the heater must be switched off before
refuelling.
B
A
Figure 16: Fuel system components
Webasto Product N.A., Inc.
At maximum pressure
in fuel line
0.2 bar (2.9 PSI)
0.11 bar (1.6 PSI)
0.03 bar (0.44 PSI)
At maximum negative
pressure in the fuel tank
-0.10 bar (-1.45 PSI)
-0.06 bar (-0.87 PSI)
-0.02 bar (-0.29 PSI)
C
A. Fuel standpipe
B. Connector hose
C. Fuel filter
D. Hose clamp
≤ 10 m
l + l
1 2
≤ 1.2 m
l
2
≤ 8.8 m
l
2
Figure 17: Fuel system parameters
E
D
0 °
E. Fuel pump
F. Fuel line (Mecanyl)
G. 90° Connector hose
16
Thermo 90 ST
F
G
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