
Ventilation-Duct
Smoke Switch System
LRS 01 Basic
Installation Instructions

Installation Instructions LRS 01
2
HEKATRON Vertriebs GmbH · Brühlmatten 9 · D-79295 Sulzburg 7002428 100206.VDA Ausgabe 10.02.2006
Installation Instructions LRS 01
3
7002428 100206.VDA Ausgabe 10.02.2006 HEKATRON Vertriebs GmbH · Brühlmatten 9 · D-79295 Sulzburg

Installation Instructions LRS 01
3
7002428 100206.VDA Ausgabe 10.02.2006 HEKATRON Vertriebs GmbH · Brühlmatten 9 · D-79295 Sulzburg
Table of contents
Introduction ....................................................................4
1. Project planning ........................................................5
2 Technical data............................................................6
3 General information .................................................7
3.1 Operation of the LRS 01 ......................................... 7
3.2 Transport, storage and unpacking ......................... 7
3.3 Scope of supply ...................................................... 7
4 Rules and regulations................................................8
5 Installation instructions.............................................9
5.1 Mounting the LKS 02 .............................................. 9
5.2 Electrical connection of the ORS 210 ................... 12
6 Commissioning ........................................................14
6.1 Functional testing ................................................ 14
6.2 Display of operating status of the ORS 210 ........ 14
7 Maintenance instructions........................................15
8 Ordering data..........................................................16

Installation Instructions LRS 01
4
HEKATRON Vertriebs GmbH · Brühlmatten 9 · D-79295 Sulzburg 7002428 100206.VDA Ausgabe 10.02.2006
Installation Instructions LRS 01
5
7002428 100206.VDA Ausgabe 10.02.2006 HEKATRON Vertriebs GmbH · Brühlmatten 9 · D-79295 Sulzburg
Introduction
Figure 01
The LRS 01 consists of a ventilation duct socket LKS 02 and an ORS 210
optical Smoke Switch with alarm latching. It is used for monitoring smoke
in ventilation ducts.
The LKS 02 provides a mounting for Smoke Switch ORS 210 and is fitted on the
outside of a ventilation duct. The LRS 01 is intended for use inside buildings.

Installation Instructions LRS 01
5
7002428 100206.VDA Ausgabe 10.02.2006 HEKATRON Vertriebs GmbH · Brühlmatten 9 · D-79295 Sulzburg
1. Project planning
The socket LKS 02 is designed for use on rectangular ventilation ducts with
dimension “a” from 0.15 m to 1.0 m. It can also be used on circular ducts from
0.2 m to 1.0 m in diameter. The lateral reach of the inlet tube into a duct is ca.
500 mm. The ventilation duct socket must be placed so that reliable smoke detection can be assumed. Disruptive factors, which could affect reliable operation of
the LRS 01 must be eliminated.
A2
A2
B
B
A1
A1
min. 3 x a
A1: Ideale Betriebsumgebung
A2: Erhöhte Staubbelastung
B: Bereich für Rauchfrüherkennung ungeeignet.
a: Kanalmaß
a
a
Luftstromrichtung
Figure 02
Figure 02 provides recommendations for project planning.
To ensure reliable
smoke detection, in large ducts several LRS 01 Smoke Switches should be installed. The airflow parameters must be taken into account when determining
their positions.
Figure 03
Direction of Airflow
A1: ideal operating environment
A2: higher dust loadings
B: zone unsuitable for early detection of smoke
a: duct dimension
Centre

Installation Instructions LRS 01
6
HEKATRON Vertriebs GmbH · Brühlmatten 9 · D-79295 Sulzburg 7002428 100206.VDA Ausgabe 10.02.2006
Installation Instructions LRS 01
7
7002428 100206.VDA Ausgabe 10.02.2006 HEKATRON Vertriebs GmbH · Brühlmatten 9 · D-79295 Sulzburg
2 Technical data
Housing LKS 02
Field of application ventilation ducts
Min. air speed 1 m/s
Max. air speed 20 m/s
Temperature range see Smoke Switch ORS 210
Degree of protection IP 54 (on duct surface)
Colour blue / transparent
Material PC / aluminium tube
Installation
Openings
on a ventilation duct
2 x Ø 28-30 mm at 150 mm pitch centres
for mounting in housing
2 x max. 6 dia. at 206 mm pitch centres
Cable entries 4 x Ø6-10 mm
Dimensions without tube L 25 cm x B 13.5 cm x H 10 cm
Weight without tube ca. 350 g
The temperature range of the socket LKS 02 and Smoke Switch ORS 210 combination is determined by the technical data of the Smoke Switch.
Temperature range: - 20 °C to + 75 °C
Permissible rel. humidity: up to 95 % RH
(dewing and steam condensation
can cause false alarms)
Smoke Switch ORS 210
Operating principle light-scattering
Reaction thresholds to construction and testing rules for
smoke-triggered installations (12/76)
Operating voltage 18 to 28 V DC
Current draw at 28 V DC
quiescent
in alarm
in fault
22 mA
11 mA
16 mA
Relay contacts with latching alarms
switchable voltage, max.
switchable current, max.
switchable power, max.
30 V DC
1 A
30 W
Degree of protection IP 40
Operating ambient temperature -20°C to +75 °C
Weight 120 g
The ORS 210 has latching alarm functions. Following an alarm , the
relay (contacts 4 and 5) remains open until the supply voltage is briefly
interrupted.