Kidde Alarmline II User manual

Dual Zone Digital Location
Control Unit Installation
and Operation Manual
P/N 20-8201-501-CU03-01 • ISS 08MAY18

Copyright
©
2018 UTC Fire & Security. All rights reserved.
Trademarks and
patents
Alarmline II and
Dual Zone Digital Location Control Unit are
trademark
s of UTC Fire & Security.
Other trade names used in this document may be trademarks or
registered trademarks of the manufacturers or vendors of the
respective products.
Manufacturer
Thermocable Flexible Elements Ltd.,
Pasture
Lane, Clayton, Bradford BD14 6LU.
Authorized EU manufacturing representative:
UTC Fire & Security B.V. Kelvinstraat 7, 6003 DH Weert,
Netherlands
.
Contact information
For contact information, visit
https://firesecurityproducts.com/.
Revision
01
EU compliance
2012/19/EU
(WEEE Directive): Products marked with this symbol
cannot be disposed of as unsorted municipal waste in the European
Union. For proper recycling, return this product to your local supplier
upon the purchase of equivalent new equipment, or dispose of it at
designated collect
ion points. For more information see:
http://www.recyclethis.info/
.
2006/66/EC (
Battery Directive): This product contains a battery that
cannot be disposed of as unsorted municipal waste in the European
Unio
n. See the product documentation for specific battery
information. The battery is marked with this symbol, which may
include lettering to indicate cadmium (Cd), lead (Pb), or mercury
(Hg). For proper recycling, return the battery to your supplier or to a
d
esignated collection point. For more information see:
http://www.recyclethis.info/
.

Dual Zone Digital Location Control Unit Installation and Operation Manual i
Content
Important information ii
Limitation of liability ii
Advisory messages ii
Product warnings and disclaimers iii
Introduction 4
Overview 4
Regulatory information 5
Description 5
Technical specifications 6
Operating modes 7
Installation 12
Mounting the enclosure 12
Terminal connections 13
Interposing cable 14
Wiring diagrams 15
Configuration and operation 17
Configuration overview 17
Configuring the operating mode 19
Configuring the cable type 19
Configuring the leader cable 19
Configuring latching outputs 20
Configuring the Modbus output 20
Restoring the factory default settings 22
Diagnostics information 22
Modbus communications 26

ii Dual Zone Digital Location Control Unit Installation and Operation Manual
Important information
Kidde Products Ltd. has taken every care to ensure that Alarmline II Digital
Linear Heat Detection systems are as simple to install as possible but in case of
difficulty, please contact our Help Line to ensure trouble free installation and
operation.
Kidde Products Ltd. takes no responsibility for damage or injury occasioned as a
result of failing to install or operate the equipment in accordance with these
instructions.
Limitation of liability
To the maximum extent permitted by applicable law, in no event will UTCFS be
liable for any lost profits or business opportunities, loss of use, business
interruption, loss of data, or any other indirect, special, incidental, or
consequential damages under any theory of liability, whether based in contract,
tort, negligence, product liability, or otherwise. Because some jurisdictions do not
allow the exclusion or limitation of liability for consequential or incidental
damages the preceding limitation may not apply to you. In any event the total
liability of UTCFS shall not exceed the purchase price of the product. The
foregoing limitation will apply to the maximum extent permitted by applicable law,
regardless of whether UTCFS has been advised of the possibility of such
damages and regardless of whether any remedy fails of its essential purpose.
Installation in accordance with this manual, applicable codes, and the instructions
of the authority having jurisdiction is mandatory.
While every precaution has been taken during the preparation of this manual to
ensure the accuracy of its contents, UTCFS assumes no responsibility for errors
or omissions.
Advisory messages
Advisory messages alert you to conditions or practices that can cause unwanted
results. The advisory messages used in this document are shown and described
below.
WARNING: Warning messages advise you of hazards that could result in injury
or loss of life. They tell you which actions to take or to avoid in order to prevent
the injury or loss of life.
Caution: Caution messages advise you of possible equipment damage. They tell
you which actions to take or to avoid in order to prevent the damage.
Note: Note messages advise you of the possible loss of time or effort. They
describe how to avoid the loss. Notes are also used to point out important
information that you should read.

Dual Zone Digital Location Control Unit Installation and Operation Manual iii
Product warnings and disclaimers
THESE PRODUCTS ARE INTENDED FOR SALE TO AND INSTALLATION BY
QUALIFIED PROFESSIONALS. UTC FIRE & SECURITY CANNOT PROVIDE
ANY ASSURANCE THAT ANY PERSON OR ENTITY BUYING ITS
PRODUCTS, INCLUDING ANY “AUTHORIZED DEALER” OR “AUTHORIZED
RESELLER”, IS PROPERLY TRAINED OR EXPERIENCED TO CORRECTLY
INSTALL FIRE AND SECURITY RELATED PRODUCTS.
For more information on warranty disclaimers and product safety information,
please check https://firesecurityproducts.com/policy/product-warning/ or scan the
QR code:

Dual Zone Digital Location Control Unit Installation and Operation Manual 4
Introduction
Overview
The Alarmline II Dual Zone Digital Location Control Unit is designed for
monitoring Alarmline II Digital Sensor cables.
Most Alarmline II Digital Linear Heat Detection (LHD) systems use a standard
monitored circuit (such as a conventional detection zone) or an addressable input
module to monitor the status of the sensor cable, but these monitoring methods
provide only simple two state operation (alarm or no alarm).
The control unit provides a number of additional features to a standard LHD
system, including:
• Monitoring of two zones of digital sensor cable
• 3000 m (9842 ft.) of sensor cable per zone
• Independent or interlock zone operation
• Alarm distance location along sensor cable
• Modbus interface
Figure 1: Dual Zone Digital Location Control Unit

5 Dual Zone Digital Location Control Unit Installation and Operation Manual
Regulatory information
The control unit is approved to UL864 (tenthedition).
Installations that are required to comply with UL must be installed in accordance
with NFPA 70, NFPA 72, and NEC 760 (National Electric Code).
Non-UL installations must be installed in accordance with the relevant local
standards and AHJ’s (Authority Having Jurisdiction).
Description
Alarmline II Digital Sensor Cable has an insulation designed to soften at a
particular temperature (the cable alarm temperature) – when the cable reaches
this temperature, it short circuits and activates an alarm condition.
The Dual Zone Digital Location Control Unit is an optional component for any
Alarmline II Digital LHD system and offers enhanced monitoring and interfacing
features, as well as simple status indications and controls for monitoring the LHD
system.
Dual LHD zones are provided on the control unit, which enable the following
features:
• Two zones of sensor cable:Two monitored inputs allow connection of two
Alarmline II Digital Sensor Cables to one control unit. The sensor cables for
each zone are independent and can be different alarm temperatures if
required. The two zones of sensor cable can be used to protect two separate
risk areas or can be used to protect the same risk area using two different
temperature cables providing pre-alarm and alarm type system.
• Independent or interlock modes of operation:Each zone on the control
unit has alarm and fault outputs for independent signaling to a main fire alarm
control panel. The two zones can also be programmed in interlock mode –
this provides a coincidence scenario where both zones must be in alarm
before any alarm outputs are triggered.
The control unit provides open circuit fault monitoring of the digital sensor cable
with a short circuit on the digital cable activating an alarm condition.
Interposing cable can be used between the control unit zone input and the digital
sensor cable allowing the control unit to be mounted remotely to the risk area.
See “Interposing cable” on page 14 for more information.
Additional features provided by the control unit:
• Alarm location:Detecting the location of an overheat condition or flame
within the risk area can help reduce the response time to an incident (thus
minimizing the damage). The control unit can identify the point along the
sensor cable where the fire has occurred.
• Modbus interface:In many applications it can be advantageous to link the
LHD system to third party graphics or control systems. The Modbus output on
the control unit provides the capabilities to do this for each zone.

Dual Zone Digital Location Control Unit Installation and Operation Manual 6
Figure 2: Alarmline II Digital LHD system
Technical specifications
Electrical
Operating voltage
12-36 VDC (nominal 24 VDC)
Current consumption
Standby
Alarm
<7 mA at 24 VDC
<15 mA at 12 VDC
<5 mA at 36 VDC
<40 mA at 24 VDC
<23 mA at 12 VDC
<15 mA at 36 VDC
Terminal
s
Spacing
Current rating
Cable size
5 mm rising clamp
16 A
0.08 to 4 mm² (28 AWG to 11 AWG)
Zone i
nputs
Number of zone inputs
Zone length
End-of-line resistor
Short circuit current
Voltage
Ground fault impedance
2 supervised inputs [1]
1 m (3.28 ft.) min. to 3000 m (10,000 ft.) max.
1 kΩ
0.5 mA
5 V max.
0 Ω
Ala
rm outputs
Number of alarm outputs
Current rating
Switching power
2 form C volt-free relay contacts (1 per zone)
2A at 30 VAC/42.4 VDC
60 W, 62.5 VA
Fault outputs
Number of fault outputs
Voltage
Current
Power dissipation
2 opto-isolated phototransistor outputs (1 per zone)
35 VDC max.
80 mA max.
150 mW max.
Communications output
Two-wire RS-485 Modbus RTU
[1] For up to two class B zones of Alarmline II Digital Sensor Cable
Sensor cable Sensor cable
24 VDC
PSU
Interposing cable (Optional)
Interposing cable (Optional)
Fire alarm
control panel
Zone 1
Zone 2
RS-485 Modbus output
JB
JB
JB
JB

7 Dual Zone Digital Location Control Unit Installation and Operation Manual
Physical and environmental
Enclosure
Plastic enclosure with clear plastic lid fitted with
membrane label
Material
Polycabonate
Colour
Light grey (RAL 7035)
Dimensions (H × W × D)
180 × 120 × 60.5 mm (7.1 × 4.72 × 2.38 in.)
Cable entries
[1] 2 × M16 × 1.5 threaded gland holes
4 × M12 × 1.5 threaded gland holes
Operating temperature
–20°C to +50°C (–4°F to 122°F)
IP rating
IP65 (NEMA 4, 4X)
[1] Cable glands not supplied
Status indications
Display
2-line, 16-character backlit display
LED indicators
Power
Alarm
Fault
1 × green LED
2 × red LEDs (1 per zone)
2 × amber LEDs (1 per zone)
Internal buzzer
92 dB(A) at 10 cm, 2.4 kHz, pulsed signal (operates
during alarm and fault conditions)
Operating modes
The control unit can operate in two different functional modes: Independent or
Interlock, providing added flexibility to LHD system design. More information on
each mode is provided below.
Independent mode
In this mode the control unit operates the two LHD zones as completely
independent detection circuits with independent status outputs.
This provides the following advantages:
• Protection of two risk areas with two sensor cables through one control unit
• Protection of one risk area with two detection zones
• Protection of one risk area as one detection zone with two different
temperature sensor cables providing a pre-alarm and alarm system

Dual Zone Digital Location Control Unit Installation and Operation Manual 8
Protection of two risk areas with two sensor cables through one control
unit
Figure 3: Protection of two risk areas with two sensor cables through one control unit
This setup provides two independent zones covering two separate risk areas with
each zone reporting its own status to the main fire alarm system.
The sensor cables connected to each zone can have different alarm
temperatures and different protective outer sheaths to suit the area they are
protecting.
To report to the main fire alarm system, two separate conventional detection
circuits or two addressable monitoring interfaces are required to monitor the
status of each independent zone.
Caution: As the system uses one control unit, the total combined area coverage
of both Digital LHD zones cannot exceed the maximum detection zone size as
defined by local standards (refer to your local standards).
Alarmline II Digital
sensor cable
Alarmline II Digital
sensor cable
24 VDC
PSU
Interposing cable
Interposing cable
Fire Alarm
control panel
Zone 1
Zone 2
RS-485 Modbus output
Status signals
zone 1
Status signals
zone 2
Risk area
Risk area

9 Dual Zone Digital Location Control Unit Installation and Operation Manual
Protection of one risk area with two detection zones
Figure 4: Protection of one risk area with two detection zones
In a large risk area the control unit can be used to create two sub zones to
reduce the search area should an alarm be generated.
To report to the main fire alarm system, two separate conventional detection
circuits or two addressable monitoring interfaces are required to monitor the
status of each individual zone.
Caution: As the system uses one control unit, the total combined area coverage
of both Digital LHD zones cannot exceed the maximum detection zone size as
defined by local standards (refer to your local standards).
Alarmline II Digital
sensor cable
24 VDC
PSU
Interposing cable
Interposing cable
Fire Alarm
control panel
Zone 1
Zone 2
RS-485 Modbus output
Status signals
zone 1
Status signals
zone 2

Dual Zone Digital Location Control Unit Installation and Operation Manual 10
Protection of one risk area as one detection zone with two different
temperature sensor cables providing a pre-alarm and alarm system
Figure 5: Protection of one risk area as one detection zone with two different temperature
sensor cables providing a pre-alarm and alarm system
As the control unit can monitor two zones of sensor cable, it can cover a single
risk area with two sensor cables of different alarm temperatures, effectively
providing a two-stages alarm system.
Each zone has separate status outputs allowing the fire alarm control panel to
determine which temperature cable has activated the alarm. Through the fire
alarm control panel, different cause and effects can be programmed for each
alarm activated by the control unit.
Caution: As the system uses one control unit, the total combined area coverage
of both Digital LHD zones cannot exceed the maximum detection zone size as
defined by local standards (refer to your local standards).
Interlock mode
This mode configures the control unit as two LHD zones providing coincidence
detection (that is, both zones of sensor cable must be in an alarm state in order
to activate an alarm on the control unit, which is then signaled to the main fire
alarm system). Interlock mode should be used in applications where a failsafe
alarm is required.
The sensor cables connected to zone 1 and zone 2 of the control unit must have
the same alarm temperature and must be installed in the same risk area, running
parallel to each other.
Note: In interlock mode only one set of status outputs function, and these are the
ones associated with LHD zone 1.
24 VDC
PSU
Interposing cable
Interposing cable
Fire Alarm
control panel
RS-485 Modbus output
Status signals
zone 1
Risk area
Sensor cable LHD zone 1
Status signals
zone 2
Sensor cable LHD zone 2

11 Dual Zone Digital Location Control Unit Installation and Operation Manual
Caution: As the system uses one control unit, the total combined area coverage
of both Digital LHD zones cannot exceed the maximum detection zone size as
defined by local standards (refer to your local standards).
Figure 6: Interlock mode
24 VDC
PSU
Interposing cables
Fire Alarm
control panel
RS-485 Modbus output
Status signals
zone 1
Risk area
Sensor cable LHD zone 1
Sensor cable LHD zone 2

Dual Zone Digital Location Control Unit Installation and Operation Manual 12
Installation
This manual describes the installation of the Dual Zone Digital Location Control
Unit. Refer to the sensor cable installation manual for help installing the Digital
LHD sensor cable.
Caution: This product must be installed and maintained by qualified personnel
adhering to all local or national installation requirements and any other applicable
regulations.
Caution: When handling any electric components or printed circuit boards,
antistatic precautions must be followed. Failure to do so may result in component
damage.
Mounting the enclosure
Caution: Use the mounting and gland holes provided to ensure the integrity of
the IP rating.
The enclosure has 4 x 4 mm (0.16 in.) mounting holes recessed in each corner
(see Figure 7 below). Remove the front cover to access these.
Figure 7: location of the mounting holes
Mount the enclosure on an even surface (an uneven surface can cause distortion
of the enclosure and internal PCB).
If the anticipated mounting surface is uneven, mount the unit on stand-offs or a
suitable framework to counter the uneven surface.

13 Dual Zone Digital Location Control Unit Installation and Operation Manual
Terminal connections
The control unit is provided with a number of fixed terminal connections to enable
external wiring.
Terminal connections are provided for power supply, LHD zones, zone alarms,
zone faults, and Modbus. See the table below for more information on each.
Table 1: Terminal connections
Connector
Description
Power supply
Polarity conscious positive and negative terminals to connect an
external power supply (operating voltage range of 12 to 36 VDC).
LHD Zone 1
Supervised input to connect a zone of sensor cable. The cable can be
connected directly or via an interposing cable.
The input requires a 1 kΩEOL monitoring resistor.
LHD Zone 2
Supervised input to connect a zone of sensor cable. The cable can be
connected directly or via an interposing cable.
The input requires a 1 kΩEOL monitoring resistor.
Zone 1 Alarm
Volt-free changeover contacts to signal a fire condition on LHD ZONE
1 to the main fire alarm system. Three terminals are provided: C
(Common), NO (Normally Open), and NC (Normally Closed).
In normal operation there is continuity between the C and NC
terminals. In an alarm condition on zone 1 the relay contacts switch to
provide continuity between C and NO.
Zone 2 Alarm
Volt-free changeover contacts to signal a fire condition on LHD ZONE
2 to the main fire alarm system. Three terminals are provided: C
(Common), NO (Normally Open), and NC (Normally Closed).
In normal operation there is continuity between the C and NC
terminals. In an alarm condition on zone 2 the relay contacts switch to
provide continuity between C and NO.
Zone 1 Fault
An opto-isolated phototransistor output that
changes state when a fault
condition occurs on LHD ZONE 1. The output is failsafe: it is active
when the unit is powered and de-activates when a fault condition
occurs.
A failsafe fault ensures that a fault will be transmitted to the main fire
alarm system in the event of a power failure.
Zone 2 Fault
An opto-isolated phototransistor output that changes state when a fault
condition occurs on LHD ZONE 2. The output is failsafe: it is active
when the unit is powered and de-activates when a fault condition
occurs.
A failsafe fault ensures that a fault will be transmitted to the main fire
alarm system in the event of a power failure.
Modbus
RTU A two-wire RS-485 Modbus output. This can output the status of each
zone to third party control equipment or software.

Dual Zone Digital Location Control Unit Installation and Operation Manual 14
Interposing cable
In many applications it is not possible to install the control unit close enough to
the location of the digital sensor cable, therefore an electrical connection needs
to be provided between them.
An interposing cable can be used to provide an electrical connection between the
control unit and the sensor cable.
Interposing cable should be suitably fire rated to maintain the integrity of the
interposing cable in a fire condition until the sensor cable has triggered an alarm.
Caution: A short circuit on the interposing cable activates a fire condition.
Ensure that this does not contravene any applicable local standards. The risk of
a short circuit on the cable can be reduced by selecting a suitably robust cable or
by providing additional protection (for example, a conduit).
The recommendations for interposing cable are as follows:
Cable size
Max. leader cable length
20 AWG
1000 m (3281 ft.)
Stranded copper 16 x 0.2 mm
Single
-core copper 0.8 mm diameter
2
2 AWG
600 m (1968 ft.)
Stranded copper 7 x 0.25 mm
Single
-core copper 0.6 mm diameter
2
4 AWG
390 m (1280 ft.)
Stranded copper 7 x 0.2 mm
Single
-core copper 0.5 mm diameter

15 Dual Zone Digital Location Control Unit Installation and Operation Manual
Wiring diagrams
The following section provides details of how to configure the wiring for the
detection zone circuits and relay outputs.
Connecting Alarmline II Digital Sensor Cable
There are two LHD detection zones on the control unit, used to monitor two
separate installations of sensor cable. These are monitored circuits which
require an end-of-line monitoring resistor value 1 kΩ.
The maximum length of sensor cable that can be connected to an individual zone
is 3000 m (9842.5 ft.) and the minimum length is 1 m (3.28 ft.).
Zone circuit wiring is shown in Figure 8 below.
Figure 8: Zone circuit wiring
The interposing cable and connecting junction box shown are optional. When
using an interposing cable the control unit is calibrated to distinguish this from the
sensor cable. Interposing cable is monitored by the control unit for open circuit
fault conditions. See “Interposing cable” on page 14 for more information.
If the installation does not require an interposing cable, the sensor cable is
connected directly to the control unit’s LHD zone terminals.
Any junction boxes used must be of a suitable specification for the area where
they are installed.
Interfacing with the main fire alarm system
Outputs are provided to enable the control unit to signal status information to a
fire alarm system. Each LHD zone on the control unit has its own status outputs
(1 fire output and 1 fault output per zone) allowing individual reporting to the main
fire alarm system.
The status outputs can be interfaced to any supervised input (for example, a
detection zone on a conventional fire panel or an addressable loop interface on
an addressable fire panel).
Cables for connecting the status outputs to the main fire alarm system must be
suitably fire rated cable.
The wiring configuration to monitor the outputs is shown in Figure 9 on page 16.
+
-
LHD detection
zone
+
-
Junction box
(Optional)
Inerposing cable
(Optional)
+
-
Alarmline II Digital
Sensor Cable
Junction box

Dual Zone Digital Location Control Unit Installation and Operation Manual 16
Figure 9: Wiring configuration to monitor outputs
Note: The end-of-line (EOL) and alarm resistor values are not specified – these
values are determined by the monitoring circuit.
NC
C
NO
+
-
Fault
Alarm
+
-
Detection zone of
conventional fire panel or
addressable zone
monitor/switch monitor
interface of an addressable
fire panel
LHD ZONE 1
EOL
resistor
Alarm
resistor

17 Dual Zone Digital Location Control Unit Installation and Operation Manual
Configuration and operation
Configuration overview
Configuring the control unit is straightforward and can be done without a laptop
or dedicated programming software. The control unit has a structured menu to
guide you through the set-up sequence.
Configure the control unit using the internal SELECT and SET buttons:
• Press SELECT to select the available options
• Press SET to confirm the selection
Before starting the set-up process, all sensor cables and leader cables must be
connected to the control unit.
Set-up process
On power up the control unit shows the start-up screen with the product
description and firmware version. The firmware version is displayed as 4-digit
number (for example, R1234).
ALARMLINE II
ADLCU RXXXX
After a few seconds the main menu screen appears. There are three menu
options (see “Menu options” on page 18). Press SELECT to scroll through the
options and SET to confirm a selection.
MAIN MENU
LOAD CONFIGS
If the control unit was previously configured and no menu option is selected
within 10 seconds, then the current configuration settings are loaded. The LCD
will scroll through the current settings and will continue to the status screen.
ZONE 1: OK
ZONE 2: OK
If the control unit is being configured for the first time and no menu option is
selected within 10 seconds, then the first configuration option is shown.

Dual Zone Digital Location Control Unit Installation and Operation Manual 18
Menu options
There are three menu options, as shown below. Press SELECT to scroll through
the options and SET to confirm a selection.
MAIN MENU
LOAD CONFIGS
MAIN MENU
NEW CONFIGS
MAIN MENU
SELF TEST
Load the current configuration settings
Select LOAD CONFIGS to load the current configuration settings, and then press
SET to confirm the selection.
When this option is selected, the LCD displays the following message.
LOADING SAVED
CONFIGS…
The LCD then scrolls through the configured settings.
Create a new configuration
Select NEW CONFIGS to configure new system settings, and then press SET to
confirm the selection.
MAIN MENU
NEW CONFIGS
The first configuration option (operating mode) is then displayed on the LCD.
OPERATING MODE:
INDEPENDENT
The control unit guides you through the configuration options one at a time to
ensure no settings are missed. See “Configuring the operating mode” on page
19.
If an error is made during the configuration process, press SET and SELECT at
the same time for 10 seconds – the LCD returns to the first configuration menu
option.
Self Test
MAIN MENU
SELF TEST
Performs a self test to check the functionality of the control unit. Select SELF
TEST to start the test. See “Testing” on page 25.