Effective: May 2007
LHS™
Linear Heat Sensor
TM
R
Protection Systems
A UTC Fire & Security Company
F-73-05
FEATURES
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Fixed Temperature Digital Heat Detector
Five Alarm Temperatures Available - 68°C, 85°C, 105°C
176°C and 240°C
Compatible with All Fire Control Panels
Connect Directly to Initiating Circuit
Cost-Effective Solution for Hazardous Locations
Ideal for Use in Applications Where Spot-Type Heat
Detectors are Unsuitable
Fire Zone Location Using LHS with FenwalNET™
2000 Control Panel
FM Approved
DESCRIPTION
The LHS™ Linear Heat Sensor cable is a flexible, durable and cost-effective fixed-temperature fire detector,
suitable for protecting a wide range of commercial and
industrial fire applications.
LHS is a small diameter cable capable of detecting heat
from a fire over its entire length. The sensor cable consists of a twisted pair of 19 AWG copper coated steel
conductors covered by a temperature sensitive insulation, and protected by either a plastic braid or jacket for
various environmental
applications.
The LHS Linear Heat Sensor is Factory Mutual Approved
and is designed for open area as well as proximity detection. A wide range of jackets and operating temperatures
are available for proper system design, including confined areas or harsh environments which prohibit the use
of other forms of detection. LHS is compatible with any
fire control panel that is capable of accepting contact closure type initiating devices.
OPERATION
The heat from a fire causes the LHS cable’s special insulation to melt at a specific temperature, allowing the two
conductors to short together, thus creating an alarm condition on the fire control panel. The LHS cable may also
be used as a stand-alone contact device. The LHS normal operating state is an open circuit. For installation
details refer to “LHS Installation Instructions” (73.201).
APPLICATIONS
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Open Area Protection
Belt Conveyers
Tunnels
Aircraft Hangars
Cable Trays
Floating Roof Tanks
Classified Hazardous Areas (when used with intrinsic
safety barriers)
Conductor
Tinned
copper-covered
steel
Jacket
Insulation
Temperature-sensitive
thermoplastic or
fluoropolymer
Thermoplastic strip
braid, PVC, nylon, or
fluoropolymer
LICO Electronics GmbH
Klederinger Str. 31
A-2320 Kledering, Austria
office@lico.at www.lico.at
Tel. +43 1 706 43 00
www.mess-regeltechnik.at
www.fenwal-direct.eu
FIRE ZONE LOCATION WITH LHS
An Intelligent Linear Heat Detection System is recommended for applications where fire zone location requires
zone output control for notification appliances, HVAC
control, suppression control and annunciation. In this
system, each discrete addressable LHS cable zone will
report an individual alarm to the FenwalNET 2000 fire
control panel.
Addressable LHS cable zones are created by attaching
each LHS cable zone to an Addressable Input module (P/
N 70-407008-001). Each discrete LHS cable zone location can be displayed on the FenwalNET 2000 panel 80character LCD display with programmable text zone
description. Up to 255 devices (any mix of devices including smoke detectors, manual pull stations, waterflow
switches, LHS zones, etc.) can be connected to a single
FenwalNET 2000 addressable loop.
LICO Electronics GmbH
Klederinger Str. 31
A-2320 Kledering, Austria
office@lico.at www.lico.at
Installing an Intelligent Linear Heat Detection System
results in substantial installation cost savings over traditional hard-wired linear heat detection systems.
www.mess-regeltechnik.at
SPECIFICATIONS
Part Number
Alarm Temperature
Ambient Storage Temp. **
Tel. +43 1 706 43 00
73-200000-001
73-200000-011
73-200000-002
73-200000-012
73-200000-003
www.fenwal-direct.eu
73-200000-004
73-200000-005
155°F (68°C)
155°F (68°C)
185°F (85°C)
185°F (85°C)
220°F (105°C)
350°F (176°C)
465°F (240°C)
Up to 113°F (45°C)
Up to 113°F (45°C)
Up to 113°F (45°C)
Up to 113°F (45°C)
Up to 158°F (70°C)
Up to 221°F (105°C)
Up to 392°F (200°C)
Min. Installation Temp.
5°F (-15°C)
5°F (-15°C)
5°F (-15°C)
5°F (-15°C)
32°F (0°C)
32°F (0°C)
-4°F (-20°C)
Min. Operating Temp. *
-40°F (-40°C)
-40°F (-40°C)
-40°F (-40°C)
-40°F (-40°C)
-22°F (-30°C)
-40°F (-40°C)
-58°F (-50°C)
Application
Indoor Only
Indoor/Outdoor
Indoor Only
Indoor/Outdoor
Indoor/Outdoor
Indoor/Outdoor
Indoor/Outdoor
Approved Spacing
20 ft. (6 m)
maximum
20 ft. (6 m)
maximum
20 ft. (6 m)
maximum
20 ft. (6 m) maximum
20 ft. (6 m) maximum
Proximity Detection
Proximity Detection
5 seconds (max)
5 seconds (max)
5 seconds (max)
5 seconds (max)
12 seconds (max)
20 seconds (max)
20 seconds (max)
Polypropylene Braid
Nylon
Polypropylene Braid
Nylon
PVC
PVC
FEP
Red/Green Tracer
Black
Marked H8040N
Red/Black Tracer
Black
Marked H8045N
Black
Red
White
Flame Detection
Outer Jacket Material
Outer Jacket Color
EVA
EVA
EVA
EVA
Polythene
Polypropylene
FEP
Conductor Color
1 Black
1 Red
1 Black
1 Red
1 Black
1 Red
1 Black
1 Red
1 Black
1 Red
1 Black
1 Black/White
1 Black
1 White
External Diameter
0.146 inch (3.7 mm)
0.132 inch (3.35
mm)
0.146 inch (3.7 mm)
0.132 inch (3.35 mm)
0.167 inch (4.25 mm)
0.171 inch (4.35 mm)
0.138 inch (3.5 mm)
17.52 pF/ft.
(57.48 pF/m)
19.22 pF/ft.
(63.07 pF/m)
Conductor Insulation
Electrical Rating
1 Amp maximum, 110 Vdc maximum
Conductor Resistance
Conductor Capacitance
30.48 ohms/1000 ft. @ 68°F (100 ohms/1000 m) @ 20°C
20.21 pF/ft.
(66.32 pF/m)
20.21 pF/ft.
(66.32 pF/m)
11.29 lb./1000 ft.
(16.8 kg/km)
10.65 lb./1000 ft.
(15.85 kg/km)
Insulation Rating
Weight
25.42 pF/ft.
(83.41 pF/m)
25.42 pF/ft.
(83.41 pF/m)
19.96 pF/ft.
(65.48 pF/m)
1000 megohm per 3280 ft. (1000 m) after 1 minute @ 500 Vdc Minimum
11.29 lb./1000 ft.
(16.8 kg/km)
10.65 lb./1000 ft.
(15.85 kg/km)
15.25 lb./1000 ft.
(22.7 kg/km)
12.67 lb./1000 ft.
(18.85 kg/km)
14.65 lb./1000 ft.
(21.8 kg/km)
* When not subjected to vibration
** Do not store in direct sunlight
LHS is a trademark of Kidde-Fenwal, Inc.
TM
This literature is provided for informational purposes only. KIDDE-FENWAL, INC.
assumes no responsibility for the product’s suitability for a particular application. The product must be properly applied to work correctly.
If you need more information on this product, or if you have a particular problem or question, contact LICO.
F-73-05 Rev AB
© 2007 Kidde-Fenwal Inc.
Printed in USA
R
Protection Systems
A UTC Fire & Security Company
400 Main Street
Ashland, MA 01721
Ph: 508.881.2000
Fax: 508.881.8920
www.fenwalfire.com