AS-4080
| ENGLISH
EXHAUST AIR CONTROL SYSTEM
MODEL AS-4080
General
Safety exhaust air control model AS-4080
(tested as per VP121: 2004)
A. Introduction
The exhaust air control AS 4080 is designed for use in
conjunction with air extraction systems such as an extractor
hood in rooms with access to an open fire, for example with
a gas water heater, an open fire place, tile stove, wood
stove, oil furnace or similar.
When an air exhaust system e.g. an extractor hood or an
exhaust fan is used, air is extracted from the room and
transported outside, meaning that underpressure can be
created in enclosed spaces.
When fuel is burned in an open fireplace, odourless and
invisible carbon-di-oxide and carbon monoxide gases are
produced. When the air is extracted by an exhaust system
these gases can be transported from the fireplace to the
room, potentially causing the asphyxiation of persons
present in the room.
The AS 4080 ensures that the exhaust gas system can
only be operated when a sufficient supply of fresh air is
provided by ventilation, whether via an open window or an
air inlet flap. The ventilation requirement is derived from the
formulas of the DVGW spreadsheet G 670 and is based on
the assumption that an adequate air supply for fireplaces
should be assured even if the windows are closed.
Caution!
The roller shutter must be open when the air extraction
device is running!
In order to prevent inadvertent actuation of the extraction
hood, this exhaust air control may only be mounted on
windows that can only either be tilted or turned. It is not per-
mitted to install it on combination tilting/turning windows.
If only combination tilt/turn windows are present, it must be
determined in advance whether the exhaust air control is to
be actuated in the tilting or turning position.
If you decide that the exhaust air control should be actuated
in the tilt position, you must ensure by mechanical locking
that the window cannot be opened in the turned position. If
you opt for the turned position, it should not be possible to
open the tilted window.
AS-4080 only switches the air extraction device on when
pressure compensation is ensured.
The plug guard securely connects the air extraction device's
plug to the air extraction device itself and prevents the air
extraction device being plugged into an unprotected power
source.
In the event of a fault, an automatic shutdown of the air
extraction device is actuated, which immediately blocks the
current supply to the air extraction device.
The window opening is permanently monitored by the
solenoid switch (integrated multiple sensor). This guarantees
the required minimum opening of the window in the tilt or
turned position.
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