Installation Examples - Vetus WLOCKLP30 Instructions D'installation

Exhaust pipe
In order to ensure the proper drainage of the coolant water
injected into the exhaust pipe, the pipe must be installed with a
slope downward over its whole length from the water injection
point to the exhaust silencer.
During operation, the exhaust pipe will contain water. This will
increase its weight considerably, so support the exhaust pipe
properly.
The exhaust pipe from silencer to transom connection must be
installed in such a way that:
- The highest point in the exhaust pipe should not be more
than 150 cm (60") above the underside of the exhaust
silencer.
- The length of the section between the exhaust silencer and
the highest point, should not exceed 300 cm (120").
Hose connections
In order to achieve the ideal connection between the hoses and
the exhaust silencer, both hose connections on type LSG and
LSS turn through 360 degrees, while on types WLOCKL40/45/
50R, the INPUT hose connection turns through 360 degrees.
LSS and WLOCKL40/45/50R:
Loosen the hose clamps before turning the hose connec-
tions!
Tighten up the hose connections to a torque of 5 - 6 Nm.
LSG:
Loosen the bolts before turning the hose connections!
Tighten up the hose connections to a torque of 0,4 Nm.
1
LSG
To ease the fitting of the hose to the hose connector, use only
water and/or soap, NOT grease or products containing oil.
Fit each hose connection with 2 stainless steel 12 mm (0.5")
wide hose clamps.
Sensor for temperature alarm
A sensor for a temperature alarm can be fitted in the exhaust
pipe.
Exhaust silencer type LSG
A sensor for a temperature alarm can also be fitted in the
exhaust silencer connector. The 'IN' connector on the exhaust
silencer has two circular areas. These are intended for fitting the
temperature sensor. Drill in one of these areas a hole of the cor-
rect size. Fit the sensor with a lock nut and, after fitting, check
that the exhaust silencer is completely liquid and gas-tight.
Exhaust systems 30 mm - 90 mm
2

Installation Examples

Exhaust systems with an exhaust silencer type LP/LSG/LSL/
LSS, and silencer type MP , goose neck type LT and a transom
connection are shown on page 16.
Entry of water from the aft is almost completely prevented by
the extra height difference in the goose neck.
When the engine is stopped, any water which is still in the
exhaust pipe (between the highest point in the exhaust system
and the exhaust silencer) will run back to the exhaust silencer.
To reduce the amount of this water as much as possible, the
goose neck should be fitted directly above the exhaust silencer,
if possible (see drawings 1 and 3).
When the goose neck is fitted directly to the transom (drawings
2 and 4), the maximum length of the exhaust pipe, between
exhaust silencer and the highest point, should be taken into
account.
Prevention of syphoning (drawings 3 & 4)
If the water injection point 'C' is below, or less than 15 cm (0.6")
above the waterline (also when the ship heels under sail), there
is a risk that when the engine is stopped, the coolant water
will enter the engine due to syphoning. This syphoning can be
prevented in two ways:
 By creating an air vent system in the coolant water hose
between engine block and water injection point 'C', by fitting
an air vent with air vent pipe, for example.
 By fitting an air vent (with valve) in the coolant water hose
between the engine block and water injection point 'C'.
Maintenance
Check all hose connections for gas and water leaks regularly.
Before the winter lay-up, drain the exhaust silencer. The exhaust
silencer has a drain plug for this purpose.
Exhaust silencer LSG
Check the non-return valve for proper function at least once a
year.
ENGLISH
5
030412.05