Fuel Supply - Whisper Power M-SC3.5 Installation Manual

1.4 CONNECTIONS
The generating set comes supplied with all supply lines
and output cable (i.e. electric cables, cooling water
connections, exhaust, fuel lines etc.) already connected to
the engine and generator. The supply lines are fed through
the capsule's front base. The connections are marked as
shown in figure 2.
All electrical connections, cable types and sizes must
comply with the appropriate national regulations. Supplied
cables are rated for ambient temperatures up to 70°C. If
the cables are required to meet higher temperature
requirements, they must be run through conduits.
ATTENTION!
Before working (installation) on the system
read the section safety instructions.
1.4.1

Fuel supply

1 FUEL TANK
Fuel tanks should be made of appropriate material such as
(stainless) steel or plastic. Steel tanks should not be
galvanized or painted inside. Condensation can occur in
metal tanks when temperature changes. Therefore, water
accumulates at the bottom of the tank and provisions
should be made for the drainage of this water.
The tank will need a filling connection, a return connection
and an air ventilation connection which will require
protection against water entry.
Some official regulations do not allow connection points at
the base of the fuel tank; in this instance connections are
to be made at the top of the tank with internal tubing down
to a few cm above the bottom of the tank.
EN / M-SC3.5 / September 2010
2 FUEL LIFT PUMP
The generating set itself is equipped with a fuel lift pump;
therefore the tank can be installed at a lower level than the
generating set. The maximum suction height is 1 m. If the
pump has to lift the fuel higher than one meter an external
fuel lift pump must be installed. The control board is
already prepared to connect an extra fuel pump.
3 FUEL PIPES
When the tank is above the generating set we recommend
ending the return line on the top of the tank (A).
When the return is on the top - in case of a leakage the
return line cannot overflow because of siphoning. One will
only need a fuel cock in the fuel supply line.
When the tank is below the generating set we recommend
ending the return line on the bottom of the tank (A) below
the inlet of the supply line to discharge under the lowest
fuel level. This prevents air getting into the fuel line. Here
also one needs a fuel cock only in the supply line Both
supply and return fuel pipe lines should be appropriate
material and 8 mm outer diameter tubing. The quality of
the tubing of fuel pipes could be submitted to local
regulations depending on the application of the vessel.
The fuel pipes can be plumbed to the flexible hoses which
are on the generating set and have a connection to fit to 8
mm pipe. This fuel lines fulfils CE standards and are
according to ISO 7840 A2. It is important to avoid bends in
the pipes, as they could trap air bubbles. The return pipe
should never be connected to the suction pipe. Other
consumers of diesel fuel, such as the propulsion engine
and heaters, have to be connected to separate suction
and return pipes.
4 FUEL FILTERS
A fine fuel filter is installed which requires maintenance.
Whisper Power advises to install an extra fuel filter/ water
fuel separator near the fuel tank.
Before starting your generating set for the first time follow
the fuel system bleeding procedure in the users manual.
INSTALLATION
5