Introduction
The VETUS extractor fan type VENT is intended for ventilating
the engine room, toilet or kitchen.
Warning
In order to prevent personal injury, the electrical supply
should always be disconnected during installation and main-
tenance.
Never use the fan where the ambient temperature exceeds
70º C (158 degrees F).
Warning
We DO NOT recommend that this extractor fan is used to
supply air to the ship’s engine. Any engine will be able to
supply itself with air, provided the ventilation openings in the
engine room are large enough. When a fan is fitted in the
engine’s air supply duct, the suction of the engine intake will
make the fan run too fast, causing it to overheat.
Operating Instructions
The fan should be switched on for a minimum of 4 minutes and
the engine room checked for vapour before the engine is start-
ed.
NEVER switch the fan on while refuelling.
Engine room ventilation-Installation example
See Drawing 1. In the situation shown in the drawing, the
engine sucks in air for combustion and cooling via the air inlet
grille. The engine room can only be ventilated by the fan when
the engine is stopped.
N.B.: With a DIESEL engine, the air should preferably enter the
engine room low down, and be extracted as high up as possi-
ble.
Important
With a PETROL engine, the air should enter from high up in
the engine room, and be
extracted as low down as possi-
ble
, where it is most likely that vapour will collect. This point
should always be below the top of the engine foundation.
However, the duct opening should not be so low that there is
a risk of bilge water being sucked into the fan.
Installation
Fit the fan in a bulkhead or floor, high enough above the bilge
water level, in a place free from splashes, drips or deck swab-
bing water.
Determine the position of the fitting holes. Use the fan as a
guide. Drill holes for 4.8 mm. (no. 10) screws. Fix the fan with
the screws. Tighten up the screws evenly, but
not so tight
that
you split the mounting feet.
Ventilation Duct
Fit ventilation ducting with an internal diameter of 76 mm (3”)
which conforms to the following requirements:
- Smooth inside
- Resistant to a temperature of at least 70º C (158 degrees F)
- Resistant to water, oil and fuel
- Resistant to under and over-pressure
Keep the ventilation ducting as short as possible with as few
bends as possible. Keep the radius of any bends as large as
possible.
Fit the duct with a screwing movement to the duct outlet. Fix
ducting with stainless steel hose clamps.
Electrical Connections
Check that the on-board voltage is the same as that stated on
the fan.
Connect the fan as shown in the diagram, see Drawing 2.
Extend the connector wires if required. Use wiring with a mini-
mum core cross-section of 2.5 mm
2
(AWG 14). Fit a 12 Amp (for
12 Volt) or 6 Amp (for 24 Volt) fuse in the + wire.
Technical Data
Motor
: 12 V or 24 V direct current
Speed
: 4,800 rpm
Current
: Max. 8 A for 12 V; 4 A for 24 V
The motor is ‘ignition protected’.
Capacity
: Max. 4 m
3
/min (141 CFM) for 13.6 V
Duct connection
: ø 76 mm (3”) diameter
Weight
: 1.2 kg (2.65 lbs)
Ambient temperature
: Maximum 70 degrees C
(158 degrees F)
8.0105
3
Extractor fan type VENT
ENGLISH
for 12 V
