FireClass DUO-CEL User manual

EQUIPMENT: DUO-CEL WRITTEN BY: RKP
PUBLICATION: OM_DUO-CEL_INST CHECKED BY: AJC
ISSUE No. & DATE: 2 13/10/10 APPROVED BY: JBJ
PAGE 1 of 30
DUO-CEL
Fire Detection/Alarm Control Panel and Repeater
Installation and Commissioning Manual

EQUIPMENT: DUO-CEL WRITTEN BY: RKP
PUBLICATION: OM_DUO-CEL_INST CHECKED BY: AJC
ISSUE No. & DATE: 2 13/10/10
PAGE 2 of 30
List of Contents
1. LIST OF FIGURES..................................................2
2. INTRODUCTION ....................................................3
2.1 PANEL IDENTIFICATION.........................................3
3. PANEL CIRCUIT DETAILS..................................3
3.1 AUXILIARY SUPPLY...............................................3
3.2 FIRE SIGNAL OUTPUT............................................3
3.3 FIRE RELAY OUTPUT.............................................3
3.4 FAULT RELAY OUTPUT..........................................3
3.5 REMOTE CONTROL INPUT......................................4
3.5.1 Class Change............................................4
3.5.2 Alert ..........................................................4
3.5.3 Evacuate....................................................4
3.5.4 Silence Alarms ..........................................4
3.5.5 Reset..........................................................4
3.6 OPEN COLLECTOR OUTPUTS .................................5
3.6.1 Disabled Output........................................5
3.6.2 Evacuate Output........................................5
3.6.3 Buzzer Active Output.................................5
3.7 SOUNDER CIRCUITS...............................................5
3.8 ELECTRICAL DESIGN OF DETECTION ZONES..........5
3.8.1 Standard Panel Default Zone
Configuration.........................................................6
3.8.2 Standard Panel Resistor Zone
Configuration.........................................................6
3.8.3 Twin-Wire Panel Zone Configuration.......6
3.8.4 Maximum Number of Devices on a Zone ..6
3.9 PANEL TO REPEATER WIRING................................9
4. INSTALLATION AND COMMISSIONING
PROCEDURE OVERVIEW................................10
5. INSTALLATION....................................................10
ELECTRICAL SAFETY.................................................10
5.1 PRE-INSTALLATION CHECKS ...............................12
5.1.1 DUO-CEL Panel Installation Instructions
12
5.1.2 Battery removal & Replacement.............14
5.1.3 DUO-CEL Repeater Installation
Instructions ..........................................................16
6. PANEL COMMISSIONING .................................16
6.1 INTRODUCTION....................................................16
6.2 COMMISSIONING CHECKLIST...............................16
6.3 AN OVERVIEW OF THE COMMISSIONING
PROCEDURE......................................................16
6.4PRE-COMMISSIONING WIRING CHECK.................17
6.5 POWERING UP......................................................17
6.6 PANEL CONFIGURATION......................................18
6.6.1 Basic Default Configuration ...................18
6.6.2 Site-Specific Configuration.....................18
7. OPERATING THE ENGINEER’S FUNCTIONS
.................................................................................18
7.1 ZONE DEPENDENCY (COINCIDENCE)....................18
7.1.1 Zone Dependency selection.....................18
7.2REPEATER CONFIGURATION................................19
7.2.1 Repeater selection...................................19
7.3 INVALID CONFIGURATION CONDITIONS:..............19
7.4 ZONE 1NON-LATCH OPERATION .........................19
7.5 RESISTOR EOL....................................................19
7.6 ALERT MODE ......................................................19
7.7 SELECTABLE ZONAL OR GENERAL ALARM
SOUNDER OPERATION........................................20
7.8 BUZZER DISABLE.................................................20
7.9 EARTH FAULT MONITORING.................................20
8. COMMISSIONING THE PANEL ........................20
8.1 GENERAL ALARM CIRCUITS ................................20
8.2 DETECTION ZONES...............................................20
8.2.1 Zone Fault Indications ............................20
8.2.2 Zone Fire Indications..............................21
8.3 REMOTE CONTROL INPUT ....................................21
8.4 FIRE SIGNAL OUTPUT ..........................................21
8.5 ANCILLARY OUTPUTS ..........................................22
8.6 REPEATERS ..........................................................22
8.6.1 Repeater Testing......................................23
8.7 POWER SUPPLY UNIT...........................................23
8.8 FINAL DRESSING OF THE CABLES ........................23
8.9 SITE CONFIGURATION..........................................23
9. SYSTEM HANDOVER..........................................24
10. SYSTEM MAINTENANCE.................................24
11. USER INDICATIONS..........................................25
12. USER CONTROLS...............................................26
13. PCB LAYOUTS.....................................................27
14. GENERAL ASSEMBLY DRAWING.................29
15. ALARM COUNT DISPLAY................................30
1. List of Figures
FIGURE 1–FIRE SIGNAL OUTPUT CONNECTIONS.............3
FIGURE 2–RELAY CONTACT CONNECTION DETAILS........4
FIGURE 3–REMOTE CONTROL I/P CONNECTIONS............5
FIGURE 4–ALARM CIRCUIT CONFIGURATION..................5
FIGURE 5–TWIN-WIRE EOL DEVICE ..............................6
FIGURE 6–STANDARD ZONE WIRING DIAGRAM.............7
FIGURE 7–RESISTOR EOL ZONE WIRING DIAGRAM.......7
FIGURE 8–TWIN-WIRE ZONE WIRING DIAGRAM............8
FIGURE 9–ALARM CIRCUIT WIRING DIAGRAM ..............8
FIGURE 10 –REMOTE INDICATORS WIRING DIAGRAM.....9
FIGURE 11 –REPEATER WIRING DIAGRAM......................9
FIGURE 12 –BAQ35T24 1.5A POWER SUPPLY
CONNECTIONS............................................15
FIGURE 13 –PANEL CONTROL BOARD AND PCB COVER 27
FIGURE 14 –REPEATER CONTROL BOARD AND PCB
COVER ........................................................28
FIGURE 15 –ALARM COUNT LED ASSIGNMENT ............30

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ISSUE No. & DATE: 2 13/10/10
PAGE 3 of 30
2. Introduction
This document contains all the information
necessary for the installation, commissioning and
maintenance of the DUO-CEL panel and repeater.
Please read this manual fully before commencing
installation.
The following supporting documentation is also
available:
DUO-CELSales Literature
DUO-CEL Panel Application Guide
DUO-CELUser Manual
DUO-CEL Log Book
References are made throughout this document to
“Fire Signal Output”. This is an output used to send
a common fire warning signal to a remote fire
monitoring station. It should not be used for any
other purpose.
2.1 Panel Identification
The DUO-CEL panel & Repeater type can be
identified from the Part Number on the side of the
enclosure (see section 14. for location details).
The table below shows the part numbers.
Panel/Repeater Type
Part Number
1 Zone Standard Panel
2605541
2 Zone Standard Panel
2605542
4 Zone Standard Panel
2605543
8 Zone Standard Panel
2605544
8 Zone Repeater –C/W PSE
2605545
8 Zone Repeater –No PSE
2605546
1 Zone Twin-Wire Panel
2605547
2 Zone Twin-Wire Panel
2605548
4 Zone Twin-Wire Panel
2605549
8 Zone Twin-Wire Panel
2605550
3. Panel Circuit Details
3.1 Auxiliary Supply
An auxiliary supply is available to power the
repeaters and other external field equipment from
the panel. This voltage is nominally 27.15VDC but
varies during mains-failed conditions, depending on
battery voltage.
The output is electronically fused and fuse
activation will be indicated as Fuse Failed on the
panel display. The fuse can be reset after removal
of the fault by operating the Reset button on the
display.
The auxiliary supply terminals are labelled AUX
0.25A 24V and 0V.
An additional UNFUSED 24V output is provided
on repeaters for connection to additional DC
powered repeaters.
Note: If equipment draws current from the
auxiliary supply during the mains-failed
condition this must be included in the battery
capacity calculations.
3.2 Fire Signal Output
The Fire Signal output is fault-monitored in the
non-energised condition. It is designed to operate a
signalling relay at the routing equipment. The Relay
coil must be polarised and suppressed, because the
10k end-of-line device is reverse-polarity
monitored for open & short circuit faults. See
Figure 1 for details.
+
-
Field Wiring
Panel Terminals
Output conditions:
Quiescent: -5V DC
[open circuit voltage]
Active [fire]: 24V
[nominal]
DIODE
1N4002
10k
EOL
DIODE
1N4002
Figure 1 –Fire Signal Output Connections
3.3 Fire Relay Output
The Fire Relay output is a single pole relay with
volt-free change-over contacts. The relay is
normally de-energised and energises for any fire
alarm condition. The relay remains energised until
panel reset. This relay will not energise if zone 1 is
configured as non-latching and only zone 1 is in
alarm. See Figure 2 for details.
3.4 Fault Relay Output
The Fault Relay output is a single pole relay with
volt-free change-over contacts. The relay is fail-safe
and is therefore normally energised, de-energising
for any faults. The marking on the control board
terminals is for the energised condition. See Figure
2 for details.
NOTE:
The volt-free relay contacts are rated at 30Vdc with
a maximum current of 1A. Do not exceed the
rated voltage and current.

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PAGE 4 of 30
P
N/C
Fire Relay
Fire Relay shown in de-
energised condition.
Field WiringPanel Circuit
N/O
P
N/C
Fault Relay
Fault Relay shown in
energised condition.
N/O
Figure 2 –Relay contact connection details
3.5 Remote Control Input
A single 2-terminal input allows remote operation
of the following functions:
Control Level 1 is lowest priority, 5 is highest
priority.
The input is monitored for open and short circuit
faults. Each control level requires a different
resistor load as shown in the above table. A 10K
resistor acts as the end-of-line device for fault
monitoring. See Figure 3 for wiring details.
3.5.1 Class Change
The Class Change function allows all sounder
circuits to be operated for a maximum of 5 seconds.
When the Class Change resistor is applied, the
sounders will operate continuously and then
automatically silence after 5 seconds. No
indications will be given on the panel. The resistor
needs to be removed and applied again if the signal
needs to be repeated.
3.5.2 Alert
The Alert function allows all sounder circuits to be
operated in pulsing mode.
When the Alert resistor is applied, the sounders will
pulse until the resistor is removed. The Alert/Evac
On LED will illuminate on the panel and the
internal buzzer will sound.
3.5.3 Evacuate
The Evacuate function allows all sounder circuits to
be operated in continuous mode.
When the Evacuate resistor is applied, the sounders
will operate continuously until the resistor is
removed. The Alert/Evac On LED will illuminate
on the panel and the internal buzzer will sound. The
Evacuate output will also operate.
3.5.4 Silence Alarms
The Silence Alarms function allows all active
sounder circuits to be deactivated.
When the Silence Alarms resistor is applied, any
active sounder circuits will be deactivated. The
Silence Alarms function is momentary and the
resistor needs to be removed and applied again in
order to re-operate the Silence Alarms function.
3.5.5 Reset
The Reset function allows all standing alarms and
faults to be cleared, returning the panel to the
quiescent state. The Auxiliary 24VDC supply may
also be switched off for 10 seconds if configured to
do so.
When the Reset resistor is applied with the panel in
the alarm condition, any active sounder circuits will
be deactivated, all zone circuits will reset the
detectors, the fire relay will de-energise, the fault
relay will deactivate and all fire and fault
indications will clear. The Reset function is
momentary and the resistor needs to be removed
and applied again in order to re-operate the Reset
function.
Control
Level
Function
Control
Resistor
1
Class Change
4K7
2
Alert
2K2
3
Evacuate
1K
4
Remote Silence
Alarms
470R
5
Remote Reset
220R

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PAGE 5 of 30
220R ¼W RESET
470 ¼W SILENCE
ALARMS
1k ¼W EVACUATE
10k ¼W EOL
REMOTE
I/P 0V
2k2 ¼W ALERT
4k7 ¼W CLASS
CHANGE
Figure 3 –Remote Control I/P connections
Note:
To prevent unauthorised operation of the
system, any manually operated function must be
operated by a key-switch. The key to the switch
should be held with the panel’s access control
key.
For the SILENCE ALARMS and RESET
functions, the Keyswitch should be spring-biased
so that it automatically returns to the off
position when released.
3.6 Open Collector Outputs
Three open collector outputs are provided:
1. Disabled (DIS.)
2. Evacuate (EVAC.)
3. Buzzer Active (BUZ.)
They are referred to as „open collector‟ because
each output is connected to the open collector pin
of a transistor.
In the deactivated state, each open collector output
is floating and is effectively open circuit. When the
output is activated, the transistor allows current to
flow from the open collector pin down to 0V. Each
output is able to sink 50mA when active. Higher
currents will damage the transistor driver.
If the output is used to drive a relay then a
suppression diode should be used across the relay
coil to avoid damaging the output driver circuit.
3.6.1 Disabled Output
The Disabled output is activated when any
disablements exist on the panel. The only
exceptions are Buzzer Disable and Earth Fault
Disable, both of which produce no indications on
the panel.
3.6.2 Evacuate Output
The Evacuate output is activated when the panel is
in the Evacuate state, either due to the button on the
display or due to the Remote Control input.
3.6.3 Buzzer Active Output
The Buzzer Active output duplicates the panel
buzzer for alarm and fault conditions. It does not
operate for button presses.
3.7 Sounder Circuits
The panel has up to 4 standard sounder circuits,
each rated at 0.5 Amps (not including twin-wire
sounders). The circuits are reverse polarity
monitored for open and short circuit faults. All
connected field devices must be polarised to allow
correct fault monitoring. To prevent damage to the
control panel, any solenoid devices such as bells
must also have a suppression diode fitted as shown
in Figure 4.
The circuit must be terminated with a 10K end of
line resistor.
Polarising
diode
[1N4002S]
Suppression
diode
[1N4002S] Bell
Electronic
sounder
10K
EOL
Resistor
Alarm +
Alarm -
Figure 4 –Alarm circuit configuration
3.8 Electrical Design of Detection Zones
To allow the panel to correctly monitor for fault
conditions, the wiring for each zone must be
installed as a continuous pair with no spurs or tees.

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The end-of-line monitoring device will depend on
the zone configuration of the panel. Correct polarity
must be strictly observed throughout.
3.8.1 Standard Panel Default Zone
Configuration
The Default Zone Configuration (factory Default)
on the standard panel uses active fault monitoring,
with a 10uF capacitor as the EOL device. This
allows the maximum number of detectors to be
used (up to 32 per zone) and maintains line
continuity (via diodes fitted to detector bases) when
a detector head is removed.
3.8.2 Standard Panel Resistor Zone
Configuration
The Resistor Zone Configuration on the standard
panel can be selected by DIL switch and uses
passive fault monitoring, with a 6K8 to 3K9 resistor
as the EOL device. The number of detectors is
restricted by the total current drawn by the
detectors, which must not exceed 1.6mA. Line
continuity cannot be maintained when a detector
head is removed.
3.8.3 Twin-Wire Panel Zone
Configuration
The Twin-Wire panel uses passive fault monitoring
but with an EOL device consisting of a zener diode
and resistor as shown in Figure 5. The device is
polarised and should not be connected in reverse
(otherwise the panel will indicate an alarm
condition). This EOL device allows monitoring for
detector head removal whilst maintaining line
continuity via diodes fitted to detector bases.
Only use detector bases with 1N4002 line
continuity diodes fitted.
DO NOT leave any diode bases empty. Detectors
should be fitted or a blanking plate which links out
the diode should be fitted.
NOTE: The twin-wire EOL will draw up to 4mA
from the zone in quiescent and this should therefore
be added to the total zone current when calculating
the standby battery requirements.
Resistor
330R 1W
Zener Diode
17V 5W
Connect bare leads to + & -
terminals in last zone device
Sleeved EOL device
+ve
-ve
+ve Thick Lead -ve Thin Lead
Figure 5 –Twin-Wire EOL device
3.8.4 Maximum Number of Devices on
a Zone
For the standard panel with 10uF EOL capacitor,
the maximum number of detectors & MCPs per
zone is limited to 32 or less (see DUO-CEL
Application Guide).
For the standard panel with EOL resistor, the
maximum number of devices allowed on a zone is
limited by the quiescent current drawn by each
device. The quiescent current will be listed on the
device data sheet provided by the Manufacturer of
the device.
The maximum quiescent current available to power
devices on a zone is 1.6mA. Exceeding this value
will prevent the panel from correctly monitoring for
open circuit fault conditions.
For the Twin-Wire panel the maximum number of
detectors & MCPs per zone is limited to 16 (or less,
see DUO-CEL Application Guide) if sounders are
also connected. If no twin-wire sounders are on the
zone then up to 30 detectors & MCPs may be
connected (see DUO-CEL Application Guide for
details). The maximum number of twin-wire
sounders permitted is 12 (or less; see DUO-CEL
Application Guide).
Note: It is a recommendation of BSEN 54-2 that
there should be no more than 32 detectors &
MCPs in a zone.

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Detector.
SmokeorHeat
Detectorwith
diodebase
ZONE1
Z1+ Z1–
+
-
+
-
+
-
+
10uF 35V
end-of-line Capacitor
1 2
1A 2A
ManualCallPoint.
ALERT:
CP200,CP230,
CP260
orequivalentwith
internalresistor
between470R&1K
EVACUATE:
CP211
Orequivalentwith
internalresistor
between360R&220R
Figure 6 –Standard Zone Wiring Diagram
Detector.
SmokeorHeat
Detectorwithout
diodebase
ZONE1
Z1+ Z1–
+
-
+
-
+
-
+
6K8 to 3K9 (¼4W)
end-of-line resistor
1 2
1A 2A
ManualCallPoint.
CP200,CP211,
CP230,CP260,
orequivalentwith
internalresistor
between220R&1K
Figure 7 –Resistor EOL Zone Wiring Diagram

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Detector.
SmokeorHeat
Detectorwith
1N4002diode
base
ZONE1
Z1+ Z1–
+
-
+
-
+
-
+
1 2
1A 2A
ManualCallPoint.
ALERT:
CP200,CP230,
CP260
orequivalentwith
internalresistor
between470R&1K
EVACUATE:
CP211ONLY
-
-
+
+
Sounder.
Fulleontwin-wire
sounder
EOLDevice.
Zener&Resistor
Figure 8 –Twin-Wire Zone Wiring Diagram
Polarised
Electronic
Sounder
AL1+ AL1–
-
-
+
+
-
-
+
+
-
+
-
+
Polarised
Electronic
Sounder
Solenoid
DrivenBell,
fittedwith
polarising&
suppression
diodes
(1N4002)
Solenoid
DrivenBell,
fittedwith
polarising&
suppression
diodes
(1N4002)
10K ¼W
EOLResistor
Figure 9 –Alarm Circuit Wiring Diagram
NOTE: The Alarm circuit terminals are marked
for the active polarity. When in quiescent
monitoring mode, the alarm circuit is monitored
in the reverse polarity (hence the requirement
for a polarising diode).

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DIS. EVAC.BUZ. AUX 0.25A 24V 0V
+
_
Current
Limiting
Resistors
590R
1.5W
minimum
LED
Indicators
Or Lamps
24Vdc
Buzzer,
50mA
maximum
current
REMOTE O/PS
Figure 10 –Remote Indicators Wiring Diagram
3.9 Panel to Repeater Wiring
The Repeater RS485 communication and 24Vdc
power connections should all be made via a single
multi-core data cable. The number of cores required
is two if the repeater is mains powered, or four if
powered from the panel. A cable screen is not
required but is usually present in most data cable
types. The A & B lines should be connected via one
set of twisted pair cores, the 24V & 0V lines should
be connected via another set of twisted pair cores.
If the cable includes a screen then this should be
earthed at the panel & all repeaters.
Terminal A at the panel must be connected to
Terminal A at all repeaters, Terminal B at the panel
must be connected to Terminal B at all repeaters.
EARTH STUD (Earth Bar may be present instead)
EARTH BAR Data Cable
Screen
DUO-CEL Panel
REPEATER
A B
AUX 0.25A
24V 0V REPEATER
A B BA0V24V
AUX 0.25A
24V 0V
DUO-CEL Repeater
To Next Repeater
Figure 11 –Repeater Wiring Diagram

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4. Installation and Commissioning
Procedure Overview
This section lists the steps that are taken in
installing and commissioning a DUO-CEL system.
Reference should be made to the DUO-CEL
Application manual for technical details and
description of panel features.
1. Install all field wiring and equipment
Refer to the Installation Guidelines in
section 5.1 below
Refer to the field device installation
manuals
2. Install the panel
Refer to the installation instructions in
section 5.1 below
Do not connect the field equipment at this
stage.
3. Connect any repeaters (if applicable)
Refer to the installation instructions in
section 5.1 below
4. Commission the panel
Refer to section 5.1.3
5. Installation
CAUTION: Do not use high voltage test
equipment, such as a MEGGER, when the panel
or other equipment is connected to the field
wiring, as this will cause damage to the panel.
Prior to commencing installation of
the control panel, ensure that
adequate precautions are taken to
prevent damage to the sensitive
electronic components on the control
board due to electrostatic discharge. You should
discharge any static electricity you may have
accumulated by touching a convenient earthed
object. You should repeat the process at regular
intervals during the installation process, especially
if you are required to walk over carpets.
The control panel must be installed by suitably
qualified technicians familiar with the installation
of fire detection systems. In addition, it is
recommended to refer to the following information:
Current edition of „IEE Wiring Regulations
(BS7671)‟.
Current edition of BS5839-1, or local
equivalent.
Any field device installation instructions.
Electrical Safety
WARNING: Read this section completely before
commencing installation.
Danger: This panel contains
power supply equipment which is
powered by 230VAC mains supply
Warning: The power supply uses hazardous
voltages. The unit is fitted with a protective cage
to protect service engineers from electrical
shock. DO NOT OPEN. The power supply has
no user serviceable parts.
To prevent overheating, the ventilation holes in
the cage must not be obscured.
Notes:
The electrical rating information for the panel is
located on the display overlay and is visible
when the front cover is removed.
The mains supply cable should be a minimum of
1mm2copper protected by a 5A fuse.
An appropriate lockable double pole disconnect
device shall be provided as part of the
installation. This device must have a minimum
contact gap of 3mm. The cover must be coloured
red and labelled ‘FIRE ALARM: DO NOT
SWITCH OFF’.
The panel must be located in a clean, dry area
not exposed to vibration, physical shock or risk
of damage which complies with the
environmental specification detailed in the
DUO-CEL Application Guide and should be at
least 2 metres away from pager systems or any
other radio transmitting equipment. The
operating temperature range is -5ºC to +40ºC;
maximum humidity is 95%, non-condensing.
DO NOT use mobile phones or other
transmitting equipment within 2 metres of the
panel.

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IMPORTANT NOTES ON BATTERIES:
DANGER: Batteries are electrically
live at all times, take great care never
to short circuit the battery terminals.
WARNING: Batteries are often heavy; take great
care when lifting and transporting batteries. For
weights above 24 kilos, lifting aids should be used.
DANGER: Do NOT attempt to
remove the battery lid or tamper with
the internal workings of the battery.
Electrolyte is a highly corrosive
substance, and presents significant danger to
yourself and to anything else it touches. In case of
accidental skin or eye contact, flush the affected
area with plenty of clean, fresh water and seek
immediate medical attention.
Valve Regulated Lead Acid (VRLA) batteries are
“low maintenance”, requiring no electrolyte top-
up or measurement of specific gravity.
WARNING: Only clean the battery case with a
cloth that has been soaked or dampened with
distilled water. Do not use organic solvents (such
as petrol, paint thinner, benzene or mineral spirits)
or other materials that can substantially weaken the
case. Do not use a dry cloth as this will generate
static electricity, which in turn may lead to an
explosion.
WARNING: Avoid operating temperatures outside
the range of -15  C/5  F to +50°C/122°F for
float/standby applications.
The recommended normal operating temperature is
20°C.
HIGH TEMPERATURE will reduce battery service
life. In extreme cases this can cause Thermal
Runaway, resulting in high oxygen/hydrogen gas
production and battery swelling. Batteries are
irrecoverable from this condition and should be
replaced.
LOW TEMPERATURE will prolong battery life but
reduce output capacity.
DANGER: Do not incinerate
batteries. If placed in a fire, the
batteries may rupture, with the
potential to release hazardous gases
and electrolyte. VRLA batteries
contain substances harmful to the
environment.
Exhausted batteries must be recycled.
Return them to the battery
manufacturer or take them to your
Council waste disposal site for appropriate
disposal.
PANEL ELECTRICAL SAFETY:
The volt-free relay contacts provided within the
panel must not be used to directly switch any
voltage that exceeds 30V. (Please also refer to
relay rating data).
All installation work should be carried out in
accordance with the recommendations of the
current edition of the IEE regulations by
suitably qualified and trained personnel.
THIS PANEL MUST BE EARTHED

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PAGE 12 of 30
5.1 Pre-installation Checks
1. Carefully remove the control panel from the
packing and lay the panel on a suitable flat
surface.
2. Undo the three screws holding the front cover
to the back box (one at the top, two at the
bottom).
3. Remove the front cover and return it to the
packing box.
4. Locate the spares bag and check that the
following items are present.
a. Set of battery leads (1 each of Red, Black
& Blue)
b. Plastic keys for control panel control
access (2-off).
c. Up to 8 10uF capacitors (or composite
zone EOL devices for twin-wire panels)
for zone EOL dependant on number of
zones. These may already be fitted in the
panel terminals.
d. Up to 6 10K resistors (1 for Fire Signal
output EOL, 1 for Remote Input EOL, 4
for Alarm EOL dependant on number of
alarm circuits)
e. 1 each of 2K2, 220R, 1K, 4K7 and 470R
resistors for the Remote Input Switches.
f. 1 Terminal cover-plate for the power
supply unit.
g. 1 Cable Tie for holding the mains cable
h. 1 blank insert for zone text
i. 1 Battery Fuse, 2A fast blow 20mm glass.
j. 1 Battery clamp (may already be fitted in
panel)
All items, except for the battery fuse, will be
required for the installation of the panel.
5.1.1DUO-CEL Panel Installation
Instructions
The front cover should have been removed as
detailed above in the pre-installation checks. The
front cover is not required during installation and
commissioning, so leave it safely stored in the
original packing box.
1. Remove the control board complete with
cover as follows:
a. Disconnect the two power leads at the
left-hand side of the control board.
b. Undo the two screws at the top of the
control board and remove the control
board complete with the cover. Place the
control board & cover inside the original
packing box for safety.
c. The two screws can be re-inserted into
the threaded bushes for convenience.
The power supply should not be removed.
2. Identify the indented holes in the back of the
enclosure that are used to mount the
enclosure.
3. Determine the best location for the enclosure.
This should be dust & moisture free, not
subject to mechanical vibration or shock. The
panel should be mounted at least 2 metres
away from any radio transmitting equipment
such as pager systems and other wireless
equipment.
4. Position the enclosure against the wall and
mark the location of the keyhole at the top-
centre on the back box.
5. Drill and loosely fix the enclosure using
suitable fixings (not supplied).
6. Level the enclosure and mark the four fixing
holes at each corner of the back box.
7. Drill and firmly fix the enclosure to the wall.
8. Remove the battery clamp which is held in
by one screw (if fitted).
Battery
Clamp

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PAGE 13 of 30
9. Insert the two 3.4Ah Powersonic batteries,
positioning them with the spade terminals at
the top.
10. Fix the battery clamp back into position to
firmly hold the batteries.
11. Attach the black battery lead to the black
spade terminal on the right-hand battery. Do
not connect any other battery leads.
NOTE: Only use the battery leads
supplied, with insulated connectors.
12. Fix the control board (with PCB cover) back
into the enclosure, bringing the leads from
the power supply unit underneath the control
board and over the right-hand battery. Ensure
that the earth lead is correctly attached to the
control board by the left-hand screw.
Connect the leads to the Sounder Expansion
board if fitted.
13. Connect the power supply leads to the
control board.
14. Connect the black battery lead to the
BATTERY NEGATIVE spade terminal on
the control board.
15. Determine the number of cable entry holes
required and remove the necessary knockouts
from the top of the enclosure. These
knockouts can be removed by inserting a flat-
bladed screwdriver into the slot on the rim of
the knockout and gently levering the
knockout out.
WARNING: The knockouts are designed
to be removed with ease. Excessive force
may damage the enclosure.
Lever
Knockout
out
NOTE: The knockout cannot be re-
inserted once removed.
16. Gland the wring into the enclosure using
20mm cable glands. Do not connect the
cables to the control panel at this stage.
The Mains cable should be glanded via the
cable-entry shown below:
NOTES
An appropriate lockable double pole
disconnect device shall be provided as part
of the building installation. This device
must have a minimum contact gap of
3mm.
The mains supply should be protected by a
5A fuse.
Use only mains cable compliant to BS6004,
BS6500, or equivalent, within the
following limits:
Cable
Diameter
Conductor
Diameter
Minimum
4.0mm
1.0mm (0.8mm2)
Maximum
8.0mm
2.25mm (4.0mm2)
Mains Cable
Entry
DO NOT CONNECT
THE PSU LEAD TO
THE 4th PIN

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PAGE 14 of 30
17. Connect the incoming mains cable to the
power supply, leaving the earth core 3cm
longer than the live & neutral cores. (This is
a safety feature, so that if the mains cable
gets pulled out of the power supply, the
safety earth will be the last core to be
disconnected). See Figure 12.
18. Use the supplied cable tie to fix the mains
cable to the enclosure via the plastic loop.
See Figure 12.
19. Insert the plastic cover-plate (supplied in the
spares bag) into the two holes in the top of
the terminal block of the power supply. This
is to prevent unintentional access to the live
mains cable connections during installation
and commissioning.
20. Connect all incoming cable screens or drain
wires to the Earth bar or Earth stud as fitted.
Ensure that the electrical continuity of any
cable screen is maintained through to the last
device on the circuit.
21. Ensure all 12 DIL switches on the panel are
OFF.
22. Connect the Zone EOL devices as follows:
I. Standard Panel Factory Default mode:
Connect a 10uF capacitor across each of the
zone terminals. Observe correct polarity.
II. Standard Panel EOL resistor mode:
Connect a suitable resistor (3K9 to 6K8)
across each of the zone terminals. Set DIL
switch RESISTOR EOL to the ON position.
III. Twin-Wire Panel:
Connect the twin-wire EOL (see Figure 5)
across each of the zone terminals, observing
correct polarity.
23. Connect a 10K resistor across the Fire Signal
terminals.
24. Connect a 10K resistor across the Remote
Input terminals.
25. Connect a 10K resistor across each of the
Alarm circuit terminals.
26. If repeaters are required, they should be
connected and commissioned after the panel
has been commissioned. See section 8.6.
5.1.2Battery removal & Replacement
Please refer to the DUO-CEL logbook for details
on how and when to replace the standby batteries.

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PAGE 15 of 30
COVER PLATE (SUPPLIED IN THE
SPARES KIT) TO BE MOUNTED INTO
THE TWO EMPTY SCREW HOLES IN
THE PSU TERMINAL BLOCK
TB2
VR1
NTC
+V
GND
B-
L
B+
Power
Connection to
Control Board
Incoming Mains
Cable
Secured with a
cable tie to the
backbox
Earth Wire to
EARTH bar
+V
ADJ -+
DC OUT
27V
1.5A Power
Supply Unit
230VAC IN
N L
THERMISTOR
DC OUT
TOPANEL
Power
Connection to
Control Board
Thermistor
Connection to
Control Board
Leave the
Earth wire 3cm
longer than the
Live & Neutral
wires
Negative
Temperature
Coefficient
Thermistor Input
Connector.
Earth Wire to
Control Board
Mounting
Screw
NOTE: The black wire may be connected to
(B-) instead of (GND) on the PSU. This is
quite normal and does not affect the
operation of the PSU in any way.
Figure 12 –BAQ35T24 1.5A Power Supply Connections

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PAGE 16 of 30
5.1.3DUO-CEL Repeater Installation
Instructions
The Repeater installation is generally the same as
the panel installation. Follow section 5.1.1 up to
and including step 20. For DC powered repeaters,
the steps involving batteries and mains wiring can
be ignored.
There are two DIL switches on the repeater
control board, labelled NUM REP A & NUM
REP B. They should be set as follows:
Repeater No.
NUM REP A
NUM REP B
0 (Disabled)
OFF
OFF
1
ON
OFF
2
OFF
ON
3
ON
ON
Gland the wiring into the repeaters but do not
connect the wires into the terminals at this stage.
Details of the wiring connections are shown in
Figure 11.
Do not power up the mains powered repeaters at
this stage.
6. Panel Commissioning
6.1 Introduction
The following equipment should be available where
possible to minimise commissioning time:
i) VHF/UHF Portable Radio or other communication
device(fortwo engineers)
ii) Digital Multi-meter with accurate voltage &
resistancemeasuringcapabilities
6.2 Commissioning Checklist
1. Before commissioning, the engineer should
check the following:
i) All field wiring has been inspected and tested
in accordance with manufacturer‟s wiring
recommendations and all relevant local
regulations.
ii) All field cables are wired into the control
panel enclosure through suitable cable
glands.
iii) Detector bases are terminated but detector
heads are not fitted. Any devices with
electronic components are not fitted.
Terminations to devices with electronic
components should be linked through to
maintain cable continuity.
iv) Manual Call Points are not connected but
cable is linked through to maintain
continuity.
v) No end-of-line devices (e.g. alarm circuit
EOL resistors) are fitted in the field.
2. The following information should be available
to the commissioning team:
i) Detection layout drawings.
ii) Wiring schematic diagram.
iii) Control Panel installation manuals.
iv) Installation manuals for all equipment
connected to the system.
v) Site-specific configuration details.
Tracing wiring faults on long circuits that are
routed through risers etc. can be difficult without
knowledge of the wiring route.
It is therefore recommended that the electrical
installer is available on site until basic wiring
continuity is proven.
6.3 An Overview of the Commissioning
Procedure
Commissioning is broken in to 3 sections:
i) Pre-commissioning wiring check.
ii) Powering the panel up with no field wiring
connected, configuring the panel in accordance
with the site-specific requirements and
carrying out a functional check.
iii) Functional testing of all circuits and field
devices to check each circuit and function in
turn to ensure correct operation of the entire
system.
In this way any faults may be located quickly
and accurately. The general procedures are as
follows:
oAlarm circuits should be checked first by
using the Evacuate function. The correct
operation of each sounder should be checked
to ensure that audibility levels meet the
relevant regulations.
oDetection zones should be commissioned
next. The purpose is to establish the correct
functioning of each device and check for
correct indication at the control panel. The
panel responses [as configured] should be
checked at this time.
oAll ancillary inputs and outputs should be
commissioned and the functionality
confirmed.
WARNING: Before testing, the engineer must
be aware both of the operation of all devices
fitted to the auxiliary circuits and of the
consequences of their operation.

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PAGE 17 of 30
6.4 Pre-Commissioning Wiring Check
NOTE: This pre-commissioning wiring check
procedure should be followed to test all wiring
prior to specific commissioning of any detection,
alarm and auxiliary circuits.
1. Ensure that no devices are connected to the
detection zones and alarm circuits, but that the
cables are linked through at the device locations
to achieve a continuous circuit.
2. Ensure that the resistance of all cables to earth
and between cores is at least 2M.
Check the following:
i) Positive to earth resistance is 2Mor
greater.
ii) Negative to earth resistance is 2Mor
greater.
iii) Positive to negative resistance is 2Mor
greater.
3. Connect a wire link as the end-of-line device on
each of the zones and alarm circuits. At the
panel end, measure the resistance across the
positive & negative ends of the cables for each
of the circuits; ensuring the value does not
exceed 20for alarm circuits and 7.2for
twin-wire zone circuits (detection-only zone
circuits can be up to 20). Remember to
remove the wire links after the tests.
Maintain correct polarity throughout all
circuits. Check and rectify any faults.
4. All sounders, detector heads and call points
should now be connected. Remember to
remove any links fitted to detector bases. Be
very careful to maintain correct polarity at each
device
NOTE: For twin-wire circuits, ensure that
all detector heads are fitted. On power-
up, the panel will determine the zone
quiescent condition and monitor for head
removal below this point, so if a detector
base (or sounder base) is empty it must
be linked through for correct
monitoring.
6.5 Powering up
Prior to powering up, the panel will have been
installed in accordance with the installation
instructions, all cabling will have been fully
installed and tested, glanded into the panel
enclosure but not connected to the panel terminals.
The mains supply should be isolated externally to
the panel.
1. Final battery connections:
a. Connect the blue battery lead across the
red & black battery terminals either side
of the battery clamp.
b. Connect the red battery lead to the
BATTERY POSITIVE spade terminal on
the control board.
c. DO NOT connect the other end of the red
battery lead to the battery at this stage.
2. Once the permit to energise the mains supply
is in place, energise the mains at the external
isolator switch.
The panel should switch on, illuminating the
SUPPLY ON LED and flashing the PSU
FAULT LED. The internal buzzer should
pulse.
3. Connect the red battery lead to the red battery
terminal of the left-most battery.
After a short period (less than 60 seconds) the
internal buzzer should silence and the PSU
FAULT LED should extinguish.
The only indication should be the SUPPLY
ON LED.
This is referred to as the quiescent condition of
the panel.
If any other indications are present, identify
the affected circuit and rectify the fault
(incorrect or missing EOL, EOL wrong
polarity, battery fuse blown, DIL switches
incorrectly set etc).
4. With no panel access key inserted, press the
Test button. The panel should respond by
illuminating all indications and sounding the
buzzer. This will continue for 5 seconds after
the button is released.

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6.6 Panel Configuration.
6.6.1 Basic Default Configuration
When first powered up, the DUO-CEL panel can be
operated in the factory default configuration:
All zones latching fire.
10uF Capacitor EOL (unless selected to
RESISTOR EOL during the installation
procedure), or composite EOL for twin-wire
panels
Sounders –General steady Alarm mode
selected (not zonal, not pulsed).
No zones programmed for dependency.
No repeaters configured
Earth fault monitoring –enabled [link fitted].
Buzzer –enabled.
6.6.2 Site-Specific Configuration
It is possible to tailor the functionality of the DUO-
CEL fire alarm panel in line with site-specific
requirements. Details of the site configurable
options and the configuration process are provided
in section 7 below. The actual configuration can be
recorded in the panel log book. This configuration
is not lost when the panel is powered down.
7. Operating the Engineer’s functions
The Engineer‟s configuration facilities are
controlled by DIL switches located on the
motherboard, accessed by removing the front cover
of the panel. Each configuration feature has its own
dedicated DIL switch. The DIL switches are as
follows:
1:Z1NON LATCH
2:RESISTOR EOL
3:ALERT MODE
4:DEPENDCONF
5:ZONAL ALARMS
6:S/CFIRE
7:AUX.RESET
8:DISABLEBUZ
9:REP CONFIG(4&8 zoneonly)
10:SNDREXPAND(notused)
Most functions simply require the appropriate DIL
switch to be either ON or OFF. Switches 2 & 10 are
not used on the Twin-Wire panel and must be set to
the OFF position.
7.1 Zone Dependency (coincidence)
One or more zones can be programmed to
dependency mode.
If a fire condition occurs on a dependency zone, the
panel will not immediately indicate the alarm. A
30-minute counter will be started and the zone will
be reset to clear the detector. After the zone power
is reinstated, if a fire detector or manual call point
is operated within 30 minutes, the panel will raise
the alarm condition.
If no detectors or MCPs are operated before the 30-
minute timer ends, the zone will return to
coincidence detection (i.e. a detector alarm on the
zone will start the 30-minute timer again).
Operation of MCPs will always raise a fire alarm
immediately (unless the MCP is an Alert MCP).
A fire condition on any zone not configured for
dependency will always raise a fire alarm
immediately.
7.1.1 Zone Dependency selection
When the zone dependency configuration DIL
switch (DIL switch 4 –Depend Conf) is switched
to the ON position, the panel sounds the internal
buzzer and illuminates the SYSTEM FAULT LED
to indicate that the programming mode has been
initiated. The current status of the zones is also
displayed on the zone fault LEDs; LED OFF –No
Dependency, LED ON –zone configured for
dependency.
Operation of the select button will then switch the
Select cursor on, flashing at the zone 1 fault LED.
Pressing the Select button again will move the
flashing cursor to the next zone. The cursor will be
switched off after the last zone (1, 2 4 or 8,
depending on the panel) or if no buttons are pressed
for 30 seconds.
Note that in the Dependency Configuration mode,
any faults, tests or disablements are masked and are
not shown on the display. The panel will not
respond to faults or fires.
With the cursor flashing on the required zone,
pressing the Disable button toggles the state of the
Dependency mode for that zone.
Once all required zones have been configured and
the configuration DIL switch is returned to the OFF
position, the panel will return to normal operation.
The programming information is stored in
EEPROM and is not lost during power-down of the
panel.

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7.2 Repeater Configuration
The panel can be programmed to communicate with
up to 3 repeaters. Repeaters can only be used with
4-zone & 8-zone panels.
7.2.1 Repeater selection
When the Repeater configuration DIL switch (Rep
Config) is switched to the ON position, the panel
sounds the internal buzzer and illuminates the
SYSTEM FAULT LED to indicate that the
programming mode has been initiated. The current
status of the repeater configuration is also displayed
on the Repeater Fault LEDs, which are visible
when the front cover is removed.
Operation of the Select button will increment the
number of repeaters, up to a maximum of 3, after
which the number is reset to zero.
Number Of
Repeaters
REP1 FLT
LED
REP2 FLT
LED
REP3 FLT
LED
0
OFF
OFF
OFF
1
ON
OFF
OFF
2
ON
ON
OFF
3
ON
ON
ON
Once the required quantity of repeaters has been
configured and the configuration DIL switch is
returned to the OFF position, the panel will return
to normal operation.
The programming information is stored in
EEPROM and is not lost during power-down of the
panel.
NOTE: Do not connect & configure repeaters
until the panel has been commissioned.
7.3 Invalid Configuration conditions:
An invalid programming condition will exist if
both DIL switch 4 & 9 are in the ON position at
the same time. In this case:
oThe System Fault LED will flash.
oThe fault relay will operate.
oThe panel buzzer will sound.
oThe Cursor indication will clear.
oConfiguration will be inhibited.
To clear the invalid condition, return both DIL
switch 4 & 9 to the OFF position.
7.4 Zone 1 Non-latch operation
The Zone 1 non-latch DIL switch allows zone 1 to
be set to non-latching fire indication.
In this mode a fire condition on zone 1 operates the
sounders but not the Auxiliary Fire Relay. The
alarm indication automatically clears when the fire
condition is removed from zone 1, without the need
to manually reset the panel.
7.5 Resistor EOL
The Resistor EOL DIL switch configures all zones
to monitor an end-of-line resistor (6K8 to 3K9)
instead of the default 10uF capacitor.
Ensure no detector bases have diodes fitted if using
this mode.
NOTE: This facility is not available on the twin-
wire panel.
Resistor EOL monitoring is provided for older
installations where it is impractical to change the
EOL resistor for a capacitor.
Detector/MCP discrimination will not work
when the zone monitoring is configured for
Resistor EOL and therefore zone alarm
dependency (coincidence detection) and Alert
Mode will not work correctly.
7.6 Alert Mode
The Alert Mode DIL switch configures all zones to
discriminate between detector alarms and MCP
alarms. Detector Alarms are treated as Alert; MCP
alarms are treated as Evacuate.
The Sounders are pulsed (1 second on, 1 second
off) during the Alert alarm and operate
continuously during the Evacuate alarm.
When used in conjunction with Zonal Sounder
operation, a detector alarm will only pulse the
relevant zonal sounder circuit with all other sounder
circuits silent. A MCP alarm will operate the
relevant zonal sounder circuit continuously and
pulse all other sounder circuits.
On the display, the left zonal fire LED operates for
detector alarms, the right zonal fire LED operates
for MCP alarms.
NOTE:
It is recommended that TYCO CP211 call points
are used on zones with Twin-Wire sounders in
order to reduce the zone load when more than
one call point is operated. You can use call
points with 360R resistor fitted as an alternative
but operation of more than one call point will
increase the zone load and may prevent the
Twin-Wire sounders from operating correctly.
If Twin-Wire sounders are not being used then
the TYCO CP211 or MCP with resistor may be
used (MCP resistor needs to be 220R to 360R).
Manual call points with 470R to 1K will be
indicated as a detector alarm instead of a MCP
alarm.
Alert mode will not work correctly with Resistor
EOL due to the inability to correctly
discriminate between detectors and MCPs when
EOL resistors are used.

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7.7 Selectable Zonal or General Alarm
sounder operation
The Zonal Alarms DIL switch allows the sounder
circuits to operate zonally in line with the alarm
zone. The actual operation of the alarm circuits will
vary depending on the type of zone detection and
number of zones available on the panel.
Twin-wire panel (1 to 8 zones):
All twin-wire sounders operate zonally, sounder
circuits on the motherboard operate as general
alarms (i.e. all four alarm circuits on the
motherboard operate for any zone fire)
Standard panel, 1 to 4 zone panels:
Sounder circuits 1 to 4 operate individually for a
fire condition on the respective zone. 1 and 2-
zone panels have 2 sounder circuits).
Standard panel, 8-zone panel:
Sounder circuits 1 to 4 operate as general alarms
(i.e. all four alarm circuits on the motherboard
operate for any zone fire).
7.8 Buzzer Disable
The Disable Buz DIL switch allows the panel
buzzer and Buzzer Active output to be disabled so
that they do not operate for alarms or faults. The
panel buzzer will still operate for button presses.
The panel does not give any indication that the
buzzer has been disabled. This feature is
provided for use during panel commissioning
and maintenance only. Ensure that the DIL
switch is returned to the OFF position after
commissioning/maintenance tests are complete.
7.9 Earth Fault monitoring.
The DUO-CEL panel is designed to monitor for
low impedance faults to earth on the field cables.
Earth faults can lead to false alarms or failure to
operate the sounders or other outputs.
For installations where earth fault monitoring is
unsuitable, it can be disabled by removal of the
insulated jumper link. The link can be placed just
on one pin rather than across both pins.
Earth Fault monitoring should be disabled only
after all field cabling has been tested and
confirmed to be free from faults.
8. Commissioning the Panel
After completion of the pre-commissioning wiring
check, power-up and configuration steps,
commission the circuits in line with the following
guide.
NOTE:
Operation of the panel buttons requires the
Access key to be inserted and rotated to the
vertical position.
8.1 General Alarm Circuits
1. Remove the resistor from the first alarm circuit
terminal and connect the first alarm circuit
wiring to the terminals, observing correct
polarity. The panel will indicate SOUNDER
FAULT.
2. Place the EOL resistor across the terminals of
the last sounder on the circuit. Check that the
sounder fault indication clears.
3. Use the Alarm Test facility [see DUO-CEL
User Manual] or press the Evacuate button to
operate the sounders. Check that all sounders
connected to the alarm circuit operate.
4. Clear the Alarms Test condition or press
SILENCE/RESOUND ALARMS as required.
All sounders should be silent.
5. Repeat steps 1 to 4 for any remaining alarm
circuits.
8.2 Detection zones
Work logically and systematically through each
zone. All devices on each zone must be tested and
verified to be working correctly.
8.2.1 Zone Fault Indications
1. Remove the EOL from the zone 1 terminals
and connect the cables of the zone 1 circuit to
the panel terminals, observing the correct
polarity. The panel will indicate a zone fault
for zone 1. The panel will also indicate a
sounder fault if set to twin-wire mode.
2. Place the EOL across the last device on zone 1,
observing correct polarity. Check that any zone
1 fault (and sounder fault if twin-wire)
indications clear after a few seconds. For twin-
wire panels, the panel should be powered
down and then powered up again to set the
correct quiescent threshold.
3. Check the fault monitoring of the cable is
correct by applying an open circuit then a short
circuit at the EOL device. Check that the fault
condition is indicated on the correct zone at the
fire panel.
4. Restore the zone circuit to the healthy
condition and confirm that the fault indication
clears.
Repeat steps 1 to 4 for all additional zones.