Vetus NSF16 Instructions D'installation page 4

1 Introduction
Unpleasant smells can escape from the ventila-
tion openings of a waste water tank or diesel
fuel tank.
This can be prevented by fitting an Active
Charcoal Filter in the ventilation opening.
The Vetus No-Smell Filter Element contains ac-
tivated carbon.
Atoms of active charcoal attract molecules from
the gas as it flows past. The extent of this attrac-
tion depends on the molecular structure of the
gasses. Different gas molecules are attracted to
a different extent. In this way, it is possible to
separate specific (unwanted) gasses out from a
gas mixture. Moisture reduces the effect of the
activated carbon. A part of the filter element is
therefore filled with silica gel granules.
When fitting the Filter to a waste water tank:
The filter creates extra resistance in the vent
line. During emptying by means of suction of
a waste water tank using a suction pump on
the shore, it is possible that insufficient air can
flow through to the tank via the vent line and
filter. Do take this into account, to prevent the
tank collapsing.
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2 Installation
For examples of installation see Drawings 1 and 2.
• Install the filter in a dry, cool and easily acces-
sible place above the waterline.
• The filter element must remain dry to ensure
effective operation. Take this into account
when choosing a position.
• Fit the filter high enough so that no fluid or
foam can enter the filter. Check the maxi-
mum height of fluid in the waste water tank,
and the possibility of foam in the diesel fuel
tank, and also water from outside.
• With a sailing boat, take into account sailing
when heeled over.
• Fit the filter against a vertical bulkhead.
Note the direction of the flow through the
filter.
Connections
The filter connections are suitable for hoses of
16, 19, 25 or 38 mm diameter, respectively.
• Always use flexible hose for both connec-
tions.
• Use only water and/or soap (never use grease
or products containing oil) to simplify con-
necting the hose to the connectors.
• Fit a hose connection with one stainless steel
hose clamp.
No-Smell Filter model NSF