Kidde AlarmLine II ADLCU User manual

P/N 20-8201-501-LHDA-02 • ISS 01SEP16 1
ADLCU Digital LHD Alarm
Distance Locator
Installation and Operation
Manual
Content
Contact information 1
Important information 2
Product description 3
Technical specifications 4
Installation 5
Operation 8
Troubleshooting 9
Contact information
For contact information, see: www.VHQVHWHNQO
Technical helpline: + (0)  
e-mail: LQIR#VHQVHWHNQO
This document is for use with Alarmline II Digital LHD cable.

2 ADLCU Digital LHD Alarm Distance Locator Installation and Operation Manual
Important information
Limitation of liability
To the maximum extent permitted by applicable law, in no event will 6HQVH7HN 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 6HQVH7HN 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 6HQVH7HN 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, 6HQVH7HN 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.

ADLCU Digital LHD Alarm Distance Locator Installation and Operation Manual 3
Product description
The ADLCU alarm point distance locator allows accurate location of an alarm
point along a length of Linear Heat Detection (LHD) cable.
Location of the alarm point may not always be possible by visual inspection on
low temperature LHD cable due to the cable triggering an alarm before physical
damage has occurred or, on longer lengths of LHD cable, it may be too time
consuming or inconvenient.
The ADLCU is designed exclusively for use with Alarmline II Digital Linear Heat
Detection sensor cables. The ADLCU is designed to interface between a listed
fire alarm control panel, releasing control panel, or addressable module and a
single length of sensor cable.
An important design feature of the ADLCU is the continued correct operation of
the fire alarm control panel, releasing control panel, or addressable module
regardless of faults which may occur in the ADLCU (such as loss of power to the
unit).
Each unit complies with the relevant FM standard and is enclosed in an IP65
rated enclosure.
Features
• Alarm point distance locating device for use with Alarmline II Digital LHD
cables 68°C (154°F), 78°C (172°F), 88°C (190°F), 105°C (221°F), or 185°C
(365°F)
• Alternating metres/feet display of alarm point
• Cable selection
• Leader cable calibration
• Detection of alarm point from 100 to 3000 m (300 to 10000 ft.)
• Installation settings saved in event of power loss
• IP65/IK08 rated enclosure for indoor/outdoor use with 4 sizes of M knockouts
• Simple installation and operation
• Backlit 16x2 character LCD
• Continued correct operation of the fire alarm control panel, releasing control
panel, or addressable module regardless of faults which may occur in the
ADLCU (such as loss of power to the unit)
• FM approved (for indoor use only)
Notes:
• Any fire alarm control unit connected to the ADLCU must be FM approved
• Any power supply used to deliver power to the ADLCU must be ANSI/UL
1481 certified

4 ADLCU Digital LHD Alarm Distance Locator Installation and Operation Manual
Technical specifications
Table 1: ADLCU enclosure
Dimensions
(W x H x D) 180 x 130 x 78 mm (7 x 5 x 3 in.)
Rating
IP65/IK08 rated polycarbonate with hinged removable cover and
hinged removable internal front plate
Finish
Light grey with smoked grey cover
Display
2 line, 16 character backlit display showing alarm point switching
between metres and feet, installed options,
and scrolling message
when in normal operation
Approvals
FM Class 3210 (Heat Detectors for Automatic Fire Signalling)
Knockouts
Long side
Short side
3 x M25 (25 mm), 3 x M16 (16 mm)
2 x M32 (32 mm), 2 x M20 (20 mm)
Table 2: Power requirements [1]
Operating
voltage 9 to 28 VDC
Current
consumption [2]
Normal operation (LCD backlight off)
Alarm point locating (LCD backlight on)
<10 mA
<90 mA
Power supply transient protection
1500 W for 1 ms
Operating Temperature Range
0 to 49ºC (32ºF to 120ºF)
Accuracy (% of alarm point distance)
15ºC to 25ºC (59ºF to 77ºF)
0ºC to 49ºC (32ºF to 120ºF)
< ±5% of alarm point distance
< ±6.5% of alarm point distance
[1] If powered from the fire alarm control the ADLCU should be connected to the AUX.
power
source
(which must meet the above requirements)
[2] All operating voltages
Table 3: Terminals
Spacing
9.52 mm (0.375 in.)
Rating
25 A at 300 VDC
Wire size
12 to 22 AWG
Insulation
resistance 5000

ADLCU Digital LHD Alarm Distance Locator Installation and Operation Manual 5
Installation
Electrical safety
WARNING: Electrocution hazard. To avoid personal injury or death from
electrocution, remove all sources of power and allow stored energy to discharge
before installing or removing equipment.
Caution: Equipment damage hazard. This product is sensitive to electrostatic
discharge (ESD). To avoid damage, follow accepted ESD handling procedures.
Installation
Caution: The ADLCU must be installed in accordance with NFPA 70, 72, and
authorities having jurisdiction.
The ADLCU may be installed in two configurations, as shown below.
Installation
Interface Configuration
Type 1
Fire control, releasing panel,
addressable module Leader cable with power from interface > ADLCU > Alarmline II Digital LHD cable
Type 2
Fire control, releasing panel,
addressable module Leader cable with power from interface > ADLCU > leader cable > Alarmline II
Digital LHD cable
For either installation type the ADLCU may also be powered from a separate
listed power supply.
Type 1 installation
Connect the LHD cable directly to the ADLCU unit via the LHD IN terminals (see
Figure 1 on page 6).
Connect the ADLCU to the fire alarm control panel, releasing panel, or
addressable module via the LHD OUT terminals.
Supply power from the auxiliary power output of the fire alarm control panel,
releasing panel, or addressable module or from a separate listed power supply.

6 ADLCU Digital LHD Alarm Distance Locator Installation and Operation Manual
Figure 1: Type 1 installation wiring
For a type 1 installation, the following steps should be followed during the first
installation:
1. Apply power to the ADLCU
The display shows “Installation” for approximately 2 seconds.
The display then shows “Cal Leader Cable” on the top line and “Yes” on the
bottom line.
2. Press the SELECT button to change the bottom line to “No”, and then press
the SET button.
The display shows “Calibrated” on the top line and “0 mV” on the bottom line.
3. Press the SET button again to continue.
The display shows “Select Cable” on the top line and “68°C/154°F” on the
bottom line.
4. Press the SELECT button to select the cable, and then press the SET button
to confirm your selection.
The message “Alarm Point Distance Locator - ” scrolls across the top line and
“Normal Operation” on the bottom line
If the unit has been installed and power is being restored:
• The display shows “Installed” on the top line for approximately 2 seconds.
• The display shows “Leader Cable Cal” on the top line and “0 mV” on the
bottom line for approximately 2 seconds.
• The display shows “Cable Selection” on the top line and the cable type
selected at installation on the bottom line for approximately 2 seconds.
• The message “Alarm Point Distance Locator - ” scrolls across the top line and
“Normal Operation” on the bottom line.

ADLCU Digital LHD Alarm Distance Locator Installation and Operation Manual 7
Type 2 installation
Connect a leader cable between the LHD cable and ADLCU unit via the LHD IN
terminals (see Figure 2 below).
Connect the ADLCU to the fire alarm control panel, releasing panel, or
addressable module via the LHD OUT terminals.
Supply power from the auxiliary power output of the fire alarm control panel,
releasing panel, or addressable module or from a separate listed power supply.
Figure 2: Type 2 installation wiring
For a type 2 installation, the following steps should be followed during the first
installation:
1. Apply power to the ADLCU.
The display shows “Installation” for approximately 2 seconds.
The display then shows “Cal Leader Cable” on the top line and “Yes” on the
bottom line.
2. For the calibration procedure, ensure that the two ends of leader cable are
connected together at the junction box.
3. Hold down the Distance Locate switch, and then press the SET button.
The display shows “Calibrated” on the top line and a value (in mV) dependant
on the length of leader cable on the bottom line.
Once the value is displayed the Distance Locate switch can be released.
4. Press the SET button again to continue.
The display shows “Select Cable” on the top line and “68°C/154°F” on the
bottom line.
5. Press the SELECT button to select the cable, and then press the SET button
to confirm your selection.

8 ADLCU Digital LHD Alarm Distance Locator Installation and Operation Manual
The message “Alarm Point Distance Locator - ” scrolls across the top line and
“Normal Operation” on the bottom line
If the unit has been installed and power is being restored:
• The display shows “Installed” on the top line for approximately 2 seconds.
• The display shows “Leader Cable Cal” on the top line and the previously
stored calibration value on the bottom line for approximately 2 seconds.
• The display shows “Cable Selection” on the top line and the cable type
selected at installation on the bottom line for approximately 2 seconds.
• The message “Alarm Point Distance Locator - ” scrolls across the top line and
“Normal Operation” on the bottom line.
Operation
Alarm point location
In the event of an alarm due to a short on the LHD cable, press and hold the
Distance Locate switch.
After a short delay (less than 1 second) the LCD displays the message “Alarm
Point” on the top line and, on the bottom line, the distance from the beginning of
the sensor cable to the alarm point. The distance value toggles between metres
and feet for as long as the Distance Locate switch is pressed.
While the Distance Locate switch is pressed the LHD cable is electrically
disconnected from the fire alarm control panel, releasing panel, or addressable
module and the monitoring equipment indicates a trouble condition – this is
intentional and intended to ensure that the ADLCU is not accidentally left in the
distance locate state. Once the Distance Locate switch is released, the LHD
cable is electrically reconnected to the fire alarm control panel, releasing panel,
or addressable module.
Note: During normal operation the LHD cable is electrically disconnected from
the ADLCU unit and therefore tolerant of any faults which may occur in the unit.
Resetting the ADLCU
To reset the unit, press the SET and SELECT buttons together while the unit is
off and power the unit up while holding down the buttons.
The LCD briefly displays the message “Installed” and this changes to
“Installation” after approximately 2 seconds (with the SET and SELECT buttons
pressed down).
The installation and configuration procedure may then be repeated as required.

ADLCU Digital LHD Alarm Distance Locator Installation and Operation Manual 9
Troubleshooting
If the ADLCU malfunctions after encountering a static discharge, correct
operation of the unit can be restored by interrupting power to the unit for
approximately 10 seconds.
If the configuration data is corrupted corrupted, the unit should be reset as
described in “Resetting the ADLCU” on page 8.