General; Mounting - Honeywell ESSER 781443 Installation Instructions Manual

Venturi-Air Duct Kit
9

General

The air duct kit (Part No. 781443) is used in combination with different Venturi tubes and special IQ8Quad fire
detectors for the surveillance of air ducts with a diameter from 100 mm in buildings.
Suitable IQ8Quad fire detectors:
Part No. Description
802379 IQ8Quad OT
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 lead via the deflecting
unit inside the housing directly to the detector for subsequent evaluation.
The inserted IQ8Quad fire detector is directly connected to the loop of the Esser-Fire Alarm Systems. The
operation and indication of alarm and fault messages is supplied via the connected Fire Alarm Control Panel.
10

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.
•
Minimum diameter of the air ducts: 100 mm
•
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.
•
Additional informations are detailed in the Standard DIN VDE 0833-2 : 2009.
Subpackage
1 x Short screw – to fix the Venturi tube in the enclosure
2 x Short screws - to fix the IQ8Quad detector base 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)
1 x
1 x End cap for venturi tube (Venturi tubes between 600 mm and 2800 mm only)
24
blue
LKM
on the top of the enclosure. The alignment of the air
FB 798349 / 04.13