54
High
pressure
connection
Safety valve
S 250
Heating chamber
Water inlet
Detergent
Pipeline plan
Safety valve, number
5 must be set approx.
15 % higher than the
unloader valve on the
HP pump
1 Float valve, water inlet 5 Safety valve for heating coil
2 Water tank 6 Excess pressure line, safety valve
3 Control valve, detergent 7 Fuel pump with solenoid valve
4 High pressure pump 8 Fuel filter
with integrated unloader valve 9 Fuel tank