WÄRTSILÄ PAAE051728, Instruction Manual

Page: 279 / 394

17.4.4 System operating values
Fuel feed system pressures*), LFO or HFO
Specification / Location (bar)
Fuel feed pressure / P1 3-4
Safety valve adjustment /P2 12
Circulation pressure / P3 4-5
Safety valve adjustment / P4 12
Fuel feed pressure / P5 5-8
Safety valve adjustment / P6 12
*) See installation specific documentation concerning system
pressure adjustments for Crude Oil engines.
17.4.5 Start and stop
The engine can be started and stopped on HFO and Crude Oil.
The preheating systems for the engine and the fuel feed system
should always be switched on, also during engine stop.
However, if the engine for some reason is started and stopped
on diesel oil (LFO), the engines should be operated at high load
and on diesel oil for at least 30 minutes before they are stopped.
This will secure that there is only diesel oil in the system.
Note! The hot box covers should always be mounted on the engine
for safety reasons and to keep the fuel feed piping sufficiently
preheated also during engine stop.
32-200508-07 Fuel System
WÄRTSILÄ 32 17 - 5