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S4-34760_Venturi-Air Duct Kit
1
General
The air duct kit (Part No. S4-34760) is used in combination with different Venturi tubes and special S-Quad fire
detector for the surveillance of air ducts in buildings.
Suitable S-Quad fire detector:
Part No.
Description
S4-715
Optical Sensor
The kit is fastened to the outside of the air duct. The Venturi tube is lead into the duct through a hole drilled for
this purpose. The air streaming through the air duct is picked up by the Venturi tube and led via the deflecting
unit inside the housing directly to the detector for subsequent evaluation.
The inserted S-Quad fire detector is directly connected to the analog loop of the Fire Alarm System. The
operation and indication of alarm and fault messages is given at the connected fire alarm panel.
Subpackage
1 x
Short screw – to fix the Venturi tube in the enclosure
3 x
Long screws – to fix the air duct kits enclosure on the air duct
Rubber gasket (opening of enclosure ⇔ Venturi tube)
1x
1x
End cap for venturi tube (inside the air duct)
2
Mounting
The required mounting position is indicated by the arrow
duct kit is correct if the arrow points into the same direction as the air flow inside the duct.
The arrow shaped bottom of the enclosure provides a quick info for the correct positional arrangement of the air
duct kit.
•
To avoid any damage to the devices, the supplied material in the subpackage must be used for
mounting the air duct kit.
•
If the minimum dimensions of the entry and exit paths can not be provided, care must be taken
to ensure a homogenous air stream at the Venturi tube when installing the air duct detector.
•
The direction of the air flow is not comparable with the upstream/downstream distances. This
way denotes the close area of the Venturi pipe. Observe the appropriate rated pipe diameter!
•
It may be necessary to have the air duct cross-section adapted by the company - installing the
air duct - to the local dimensions in order to ensure correct operation of the air duct detector.
4
www.acornfiresecurity.com
www.acornfiresecurity.com
on the top of the enclosure. The alignment of the air
4188-971_issue 1_07/09_duct sensor kit
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