Fitting The Hose; Sensor For Temperature Alarm; Installation Examples; Prevention Of Syphoning - Vetus HPW102 Installations- Und Benutzerhandbuch

ENGLISH
The top portion of the waterlock can be turned in a 360˚ radius.
The top portion should be turned as follows:
1 Unscrew the clamping strip
2 Turn the top portion to the desired position
3 Tighten the clamping strip sufficiently, to a torque of 5 Nm (3,7 ft .lb).
3 .5

Fitting the hose

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.
3 .6

Sensor for temperature alarm

A sensor for a temperature alarm can be fitted in the exhaust pipe.
4

Installation Examples

Exhaust systems with a waterlock type HPW, goose neck type LT and
a transom connection are shown on page 21.
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 ex-
haust 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.
4 .1 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.
8
030430.02
The air vent pipe must be connected to its own hull outlet (H).
 By fitting an air vent (with valve) in the coolant water hose be-
tween the engine block and water injection point 'C' .
5

Use

If water enters the engine from the waterlock into the exhaust
system (for example: under sail when the ship rolls or pitches
heavily) this will lead to irreparable damage to the engine.
Too much water in the waterlock can effect engine starting; drain off
this water first. Too much water in the waterlock can be also caused
by repeated starting attempts while the engine refuses to start.
6

Maintenance

- Check all hose connections for gas and water leaks regularly.
- Before the winter lay-up, drain the waterlock. The waterlock has
one drain plug for this purpose.
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Waterlock HPW