Vetus WWS42 B Série Instructions D'installation Et Mode D'emploi Destiné Au Propriétaire page 11

2 5 Electrical installation, pump
Make sure that the voltage stamped on the electric motor is identical
as the ship's power supply voltage.
The minimum cross-section for the connecting cables is 2.5 mm
(AWG 14). The voltage drop between the battery and the pump
should not exceed 10% of the supply voltage. For a 12 Volt installa-
tion with a total cable length (positive and negative wiring added
together) of more than 19 m use cable with a cross-section of 4 mm
(or more than 50 ft: use AWG 12).
Connect the power supply as shown in the wiring diagram. See
drawing at page 34.
A main switch* and a fuse** must be incorporated in the positive
cable.
*) The switch must be rated for 10 Amps.
**) Fuse: 6 Amps for 12 Volt system
4 Amps for 24 Volt system
The electric motor may become hot when used for a longer pe-
riod of time! Make sure that electric wiring etc. does not get in
contact with the motor housing.
3 Use
Emptying
The longer polluted water has been in the tank the greater the risk of
nuisance from smell. Therefore, never leave a waste water tank filled
unnecessarily long, but pump the tank empty or have it pumped
empty once a week, or whenever possible.
Pumping empty can be done in two ways:
1. by connecting a shore pump-out system to the deck cap to pump
the tank empty.
2. by using a pump present on the ship to pump out the waste water
directly overboard through the deck cap and a hose connected
to this. This pump must have internal diameter of minimum ø 38
mm (1 1/2").
Pumping waste water directly overboard is
in many places absolutely not allowed!
If the tank is pumped empty by a high capacity pump there is a risk
of the tank collapsing due to the reduced pressure caused. This prob-
lem occurs particularly when using the pump-out systems. The fol-
lowing measures can be taken to prevent collapsing from occurring:
- open the inspection cover on the tank
- open a shut-off valve fitted to the tank for this purpose
- Install a vacuum operated vent valve VRF56A.
- Install a 38 mm dia. ventilation pipe.
Waste water tank system
W
arning
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ote
2 6 Electrical installation, level sensor and level
gauge
The previously installed ultrasonic tank level sensor (Art. code: SEN-
SORA) measures the liquid level without making any contact. The
2
sensor can be used in combination with a Vetus level meter or with
the waste water control panel (WWCP) (Not included in the delivery).
When the power is switched on the LED on top of the sensor will
2 .
always flash green!
Connect the sensor to the tank level meter as shown in the wiring
diagrams, see page 35.
The sensor has been calibrated for the internal height of the tank. Do
not connect the yellow wire (Cal), but isolate it.
2 7 Problem solving, level sensor
Problem:
The LED on the top of the sensor does not flash, or only sometimes
green.
Cause:
The voltage from the power sup-
ply is too low.
The sensor is dirty on the bot-
tom.
After pumping the tank empty:
Rinse the tank with clean water, so that all the discharge hoses are
filled with clean water. Pump the flush water away by switching on
the pump; remaining contaminants in pump and hoses will also be
flushed.
Contaminants left behind in the valves of the pump this may result in
a decreased capacity of the pump.
If the installation is not used for a longer period of time, the pump
must be operated regularly. By doing so a proper functioning of the
valves is ensured.
During your absence
Flush the toilet several times to ensure the hose linking the toilet and
the tank is filled with clean water to avoid smells when not in use.
Disinfect the tank and pipes at least once a year preferably at the end
of the sailing season.
Cleaning
'Grey water' tank
Clean the inside of the tank with water and a good degreasing house-
hold cleaner; use a brush or a sponge for a rigid tank. Rinse the tank
with clean tap water.
'Black water' tank
Clean the inside of the tank with water and a good toilet cleaner; add
cleaning vinegar if there are lime deposits; use a brush or a sponge
for a rigid tank. Rinse the tank with clean tap water.
If required, add to reduce odors 'Tank Fresh' .
ENGLISH
Solution:
Charge the battery.
Clean the sensor using a damp
cloth or a brush.
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