Kidde 23911-K087 (4+1), 23911-K085 (4+2), 23911-K088 (8+2), 23911-K089 (8+3), 23911-K090 (8+4) Operation And Maintenance Manual

FireBeta XT+

Extinguishing Control Panels

Part No’s: 23911-K087 (4+1)
23911-K085 (4+2)

23911-K088 (8+2)
23911-K089 (8+3)
23911-K090 (8+4)

Operation and

Maintenance Manual

TM204 1 of 56 Issue 1.1

TM204

Contents

1. Introduction 5

2. Safety and Mounting 6

2.1 Safety 6

2.2 Mounting 6

3. Technical Specification 8

4. Control panel fascias 12

4.1 Removing the detection module 13

5. Connecting to the circuit boards 14

5.1 Detection zone wiring 14

5.2 Sounder circuit wiring 15

5.3 Using intrinsically safe barriers 15

5.4. Monitored inputs 17

5.5. Extinguishing output 17

5.5.1 Solenoid wiring 17

5.5.2 Igniting actuator wiring 18

5.5.3 Setting up Extinguishing monitoring circuit 18

5.6 Remote inputs 19

5.7 Aux 24V dc supply outputs – Extinguishing module 20

5.8. Connection to relay contacts 20

5.8.1 Common Fault relay – Detection module 21

5.8.2 Fault relay – Extinguishing module 21

5.8.3 Local Fire relay – Detection module 21

5.8.4 Fire relay – Detection module 21

5.8.5 1st stage Alarm relay – Extinguishing module 21

5.8.6 2nd stage Alarm relay – Extinguishing module 21

5.8.7 Released relay – Extinguishing module 22

5.8.8 Abort relay – Extinguishing module 22

5.8.9 Extract relay – Extinguishing module 22

6. Connection and configuration of status indicators and ancillary boards 22

6.1 Adding new Status indicators/Ancillary boards 24

6.2 Removing Status indicators/Ancillary boards 25

7. Configuring the FireBeta XT+ 26

7.1 Detection module 26

7.2 Extinguishing module 29

7.2.1 Extinguishing output mode 29

7.2.2 Activation mode 29

7.2.3 Activation zones 30

7.2.4 Reset inhibit time 30

7.2.5 Pre-release delay timer 31

7.2.6 Extinguishing release time 31

7.2.7 2nd stage alarm 32

7.2.8 Released indication 32

7.2.9 Delay on manual release 33

7.2.10 Pre-release delay reset disabled 33

7.2.11 Release timer 34

7.2.12 R0V not removed on reset 34

7.2.13 Disable earth fault monitoring 34

7.2.14 Disable Fault output 35

7.2.15 Invert low pressure switch input 35

7.2.16 Extinguishing output monitoring levels 36

TM204 2 of 56 Issue 1.1

8 Panel operation – Access Levels 1 and 2 37

8.1 Normal condition 37

8.2 Detection module 37

8.2.1 Test mode 37

8.2.2 Disable zones 37

8.2.3 Disable sounder outputs 38

8.2.4 Activate delays 38

8.3 Extinguishing modules – Access Level 2 38

8.3.1 Disable extinguishing release output 38

8.3.2 Disable manual release 38

8.3.3 Disable stage 1 output 39

8.3.4 Disable stage 2 output 39

8.3.5 Disable released output 40

8.3.6 Disable extract output 40

8.3.7 Turn on extract output 40

8.4 Single zone fire condition 41

8.5 Double zone fire condition 41

8.6 Silence/Sound alarms 41

8.7 Reset 42

8.8 Detection zone fault 42

8.9 Sounder fault 42

8.10 Power fault 42

8.11 System fault – Detection module 42

8.12 System fault – Extinguishing module 42

8.13 General fault 43

8.14 Lamp test 43

8.15 Hold condition 43

8.16 Released condition 43

8.17 Low pressure switch 43

8.18 Manual only mode 43

8.19 Manual release 44

8.20 Abort input 44

9 Internal controls 44

9.1 Detection module 44

9.1.1 Watchdog reset 44

9.1.2 Processor reset 44

9.1.3 Write enable switch 44

9.2 Extinguishing module 45

9.2.1 Watchdog reset 45

9.2.2 Processor reset 45

9.2.3 Terminate Extinguishing 45

9.2.4 Write enable switch 46

9.2.5 Address switch 46

10 Internal indications 47

10.1 Detection module 47

10.1.1 Mains fail 47

10.1.2 Batt fail 47

10.1.3 CPU fault 47

10.1.4 Aux 24V fault 47

10.1.5 Batt low 47

10.1.6 Comms fault 47

10.1.7 Earth fault 47

10.1.8 Sys fuse fault 47

TM204 3 of 56 Issue 1.1

10.1.9 S1 fault 47

10.1.10 S2 fault 48

10.2 Extinguishing modules 48

10.2.1 Watchdog 48

10.2.2 System fuse 48

10.2.3 Man. Release 48

11. Power supply 48

12. Maintenance 51

13. CE Mark 51

14. Commissioning instructions 52

TM204 4 of 56 Issue 1.1

1 Introduction

The FireBeta XT control panel is designed in accordance with European standards EN54-2 and EN54-4
Fire Detection and Fire Alarm systems - Control and Indicating Equipment and EN12094-1 Fixed fire
fighting systems - Components for gas extinguishing systems - Part 1: Requirements and test methods
for electrical automatic control and delay devices.

The control equipment is a combined fire alarm control panel and extinguishing system and has three
detection zones, any or all of which are capable of contributing to the Extinguishing release decision.
Control panels have an integral, mains powered battery charger and power supply designed in
accordance with the requirements of EN54-4.

In addition to the requirements of EN54-2 the control panel has the following facilities:

………….Test condition to allow the automatic resetting of zones in alarm for testing
purposes. EN54-2 Section 10 option with requirements.

………….Delay of the actioning of fire alarm devices (sounders) so that an alarm may
be verified before a premises is evacuated. EN54-2 Section 7.11 option with
requirements.

………….Fire alarm devices to enable an audible warning to be sounded throughout
premises upon the detection of a fire condition or the operation of a manual call point.
EN54-2 Section 7.8 option with requirements.

In addition to the requirements of EN54-2, all control panels have volt free relay contacts for
fire and local fire which operate upon a fire condition. These are to be used for local control
and signalling.

In addition to the requirements of EN12094-1 the control panel has the following facilities:

…………Delay of extinguishing signal of up to 60 seconds. EN12094-1 Section 4.17
option with requirements.

…………Signal representing the flow of extinguishing agent to indicate the released
condition. EN12094-1 Section 4.18 option with requirements.

…………Monitoring of the status of components by way of a low pressure switch input.
EN12094-1 Section 4.19 option with requirements.

………….Emergency hold device to enable the Extinguishing delay time to be
extended. EN12094-1 Section 4.20 option with requirements.

………….Control of flooding time to deactivate the releasing output after a set period of
time. EN12094-1 Section 4.21 option with requirements.

…………Manual only mode to disable the release of Extinguishing via
automatic detection devices. EN12094-1 Section 4.23 option with requirements.

…………Triggering of equipment outside the system by way of first and
second stage contacts, extract fan output etc. EN12094-1 Section 4.26 option with
requirements.

…………Activation of alarm devices with different signals to indicate pre-
discharge and released warnings using different sounds. EN12094-1 Section 4.30
option with requirements.

TM204 5 of 56 Issue 1.1

2 Safety and mounting

2.1 Safety

Suppliers of articles for use at work are required under section 6 of the Health and Safety at
Work act 1974, to ensure as far as is reasonably practicable that the article will be safe and
without risk to health when properly used.
An article is not regarded as properly used if it is used ‘without regard to any relevant
information or advice’ relating to its use made available by the supplier.
This product should be installed, commissioned and maintained by trained service personnel
in accordance with the following:

(i) IEE regulations for electrical equipment in buildings
(ii) Codes of practice
(iii) Statutory requirements
(iv) Any instructions specifically advised by the manufacturer

According to the provisions of the Act, you are requested to take such steps as are necessary
to ensure that you make any appropriate information about this product available to anyone
concerned with its use.

This equipment is designed to operate from 230V 50Hz mains supplies and is of class 1
construction. As such it must be connected to a protective earth conductor in the fixed wiring
of the installation and a readily accessible double pole disconnect device, meeting the
requirements of EN60950/IEC950 which disconnects live and neutral simultaneously, shall be
incorporated in the fixed wiring. Switch disconnect devices, such as MK Sentry 63A or similar
are suitable for this.

WARNING: Failure to ensure that all conductive accessible parts of this equipment are
adequately bonded to the protective earth will render the equipment unsafe.

This control panel is environmental class A and is designed for indoor use only at
temperatures between -5oC (+/- 3) and +40oC (+/- 2) and with a maximum relative humidity of
95%.

The IP rating for the enclosure is IP30.
Operation outside of these limits may render the equipment unsafe.

2.2 Mounting

The control panel should be mounted on a dry, flat surface, with the displays at height in a
level position such that the enclosure is not distorted.

Screws or bolts with a minimum diameter of 5mm must be used to mount the enclosure in all
four mounting positions.

It should be positioned in an accessible place as agreed with the end user.
Suitable fixings should be used at all fixing points such that the control panel is securely

mounted and is not liable to move once fixed.
The control panel should not be mounted in another enclosure or near sources of excessive

heat.

TM204 6 of 56 Issue 1.1

Cables should be connected using suitable cable glands fitted in the knockouts provided. If
additional cable entry points are required, all swarf and debris caused by drilling of additional
cable entries must be cleared before power is applied to the panel.

Cables should not be installed in the bottom of the enclosure. This space must be kept free
for batteries

.

TM204 7 of 56 Issue 1.1

TM204 8 of 56 Issue 1.1

3 Technical Specification

Table 1 - Electrical specifications

ITEM ELECTRICAL RATING COMMENT COMMUNICATION PARAMETERS
Mains supply 230V AC, 50Hz +10% - 15% (100 Watts maximum) Standard European mains connection
Mains supply fuse (4+1, 4+2, 8+2) 1.6 Amp ( F1.6A L250V) Replace only with similar type
Mains supply fuse (8+3, 8+4) T2A L250V.

Replace only with similar type

Power supply rating (4+1, 4+2, 8+2) 3 Amps total including battery charge 28V +/- 2V See section 19 for maximum loading for each

model

Power supply rating (8+3, 8+4) 4 Amps including battery charge 28V +/- 2V See section 19 for maximum loading for each

model
Maximum ripple current 200 mV
Battery type (Yuasa NP) 2 x 12 Volt sealed lead acid in series
Battery charge voltage 27.6VDC nominal (temperature compensated) See chart below Modulated DC
Battery charge current 0.7A maximum - (4+1, 4+2, 8+2)

1,5A maximum - (8+3, 8+4)

Modulated DC
Battery fuse 20mm, 3.15A glass (4+1, 4+2, 8+2) models only. Replace only with the same type

Current draw in mains fail condition 4+1 – 130 mA quiescent – 317 mA full alarm

4+2 – 185 mA quiescent – 424 mA full alarm
8+2 – 200 mA quiescent – 764 mA full alarm
8+3 - 255 mA quiescent – 871 mA full alarm
8+4 – 300 mA quiescent – 978 mA full alarm

Full alarm current consumption figure is with

all zones in alarm and all modules activated.

Maximum current draw from batteries 3 Amps (4+1, 4+2, 8+2)

4 Amps (8+3, 8+4)

With main power source disconnected
Aux 24V output Fused at 500mA with electronic fuse – 1 per Extinguishing area 200 milliamp maximum continuous load

1st and 2nd stage Sounder outputs 21 to 28V DC Fused at 1A with electronic fuse 1.0 Amp total load over all circuits Voltage reversing DC
Fault relay contact rating 5 to 30VDC 1A Amp maximum for each Maximum ratings not to be exceeded Volt free changeover contact
Fire relay contact rating 5 to 30VDC 1A Amp maximum for each Maximum ratings not to be exceeded Volt free changeover contact
Local fire relay contact rating 5 to 30VDC 1A Amp maximum for each Maximum ratings not to be exceeded Volt free changeover contact
First stage contact rating 5 to 30VDC 1A Amp maximum for each Maximum ratings not to be exceeded Volt free changeover contact
Second stage contact rating 5 to 30VDC 1A Amp maximum for each Maximum ratings not to be exceeded Volt free changeover contact
Extract contact rating 5 to 30VDC 1A Amp maximum for each Maximum ratings not to be exceeded Volt free changeover contact
Zone quiescent current 0mA minimum, 2mA maximum See tables 2 and 3 for detector types
Terminal capacity 0.5mm2 to 2.5mm

2

solid or stranded wire
Number of detectors per zone Dependent on type See table 2
Number of sounders per circuit Dependent on type and current consumption See table 4 for sounder types
Detection circuit end of line 6K8 +/- 5% ½ Watt resistor Supplied in terminals
Monitored input end of line 6K8 +/- 5% ½ Watt resistor Supplied in terminals
Sounder circuit end of line 10K +/- 5% ¼ Watt resistor Supplied in terminals
Extinguishing output end of line 1N4004 Diode Supplied in terminals

TM204 9 of 56 Issue 1.1

No. of detection circuits Two to eight. 21 to 28V DC Dependent on model
No. of sounder circuits Dependent on model 21 to 28V DC 2 x on detection section –1st stage and

1 x 2nd stage per Extinguishing area.

Extinguishing release output 21 to 28V DC. Fused at 1 Amp 1 Amp maximum load –for 5 minutes

3 Amps for 20 milliseconds

Voltage reversing DC with calibration

facility
Extinguishing release delay Adjustable 0 to 60 seconds (+/- 10%) 5 second steps
Extinguishing release duration Adjustable 60 to 300 seconds 5 second steps
SIL, AL, FLT, RST inputs Switched –ve, min resistance 0 ohms, max resistance 100 Ohms Only to be used with Aux ROV terminal Switched DC
Zone normal threshold (Allowable EOL) 8K ohm to 1K ohm Use 6K8 end of line resistor
Detector alarm threshold 999 ohms to 400 ohms Nominal trigger resistance 470 ohms
Call point alarm threshold 399 ohms to 100 ohms Nominal trigger resistance 270 ohms
Short circuit threshold 99 ohms to 0 ohms
Head removal condition 15.5 to 17.5 volts 2-wire detector base or schottky diode base
Cabling FP200 or equivalent (maximum capacitance 1uF max inductance 1 mH Metal cable glands must be used
Monitored inputs normal threshold
(Allowable EOL)

10K ohm to 2K ohm

Monitored inputs alarm threshold 2K ohms to 150 ohms +/- 5%
Monitored inputs Short circuit threshold 140 ohms to 0 ohms +/- 5%
Status unit/Ancillary board connection Two wire RS485 connection (EIA-485 specification) Maximum of 7 units per area- RS485 data

cable.
Compatible status units - 23911-K071,
23911-K072, 23911-K073, 23911-K074,
23911-K075, 23911-K076, 23911-K079,
23911-K080, 23911-K081

(EIA-485 specification)

Status unit power output 21 to 28V DC, Fused at 500mA with electronic fuse 300 milliamp maximum load

Table 2 - Compatible detectors

Model Type Manufacturer Maximum Number per zone

SLR-E/SLR-E3 OPTICAL Hochiki 32
SIJ-E/ IONISATION Hochiki 32
DCD-1E/DCD-AE3 HEAT Hochiki 32
DCD-2E HEAT Hochiki 32
DCD-1RE/DCD-CE3 HEAT Hochiki 32
DFG-60E HEAT Hochiki 32
DFJ-60E/DFJAE3 HEAT Hochiki 32
DFJ90-E/DFJCE3 HEAT Hochiki 32
SPB-ET BEAM Hochiki 8
SRA-ET BEAM Hochiki 5

55000-200/210 - SERIES 60 IONISATION Apollo 32
55000-300 - SERIES 60 OPTICAL Apollo 32
55000-100 - SERIES 60 HEAT Apollo 32
55000-101 - SERIES 60 HEAT Apollo 32
55000-102 - SERIES 60 HEAT Apollo 32
55000-103 - SERIES 60 HEAT Apollo 32
55000-104 - SERIES 60 HEAT Apollo 32

55000-215 -SERIES 65 IONISATION Apollo 32
55000-216 - SERIES 65 IONISATION Apollo 32
55000-217 - SERIES 65 IONISATION Apollo 32
55000-218 - SERIES 65 IONISATION Apollo 32
55000-219 - SERIES 65 IONISATION Apollo 32
55000-220 - SERIES 65 IONISATION Apollo 32
55000-315 - SERIES 65 OPTICAL Apollo 32
55000-316 - SERIES 65 OPTICAL Apollo 32
55000-317 - SERIES 65 OPTICAL Apollo 32
55000-120 - SERIES 65 HEAT Apollo 32
55000-121 - SERIES 65 HEAT Apollo 32
55000-122 - SERIES 65 HEAT Apollo 32

53541-151 - SERIES 30 IONISATION Apollo 32
53541-152 - SERIES 30 IONISATION Apollo 32
53551-101 - SERIES 30 OPTICAL Apollo 32
53531-221 - SERIES 30 HEAT Apollo 28
53531-211 - SERIES 30 HEAT Apollo 28
53531-212 - SERIES 30 HEAT Apollo 28
53531-213 - SERIES 30 HEAT Apollo 28
53531-214 - SERIES 30 HEAT Apollo 28

ORB-OP-12001-APO Optical Apollo 15
ORB-OH-13001-APO Multisensor Apollo 15
ORB-HT-11001-APO A1R Heat Apollo 15
ORB-HT-11002-APO A2S Heat Apollo 15
ORB-HT-11003-APO BR Heat Apollo 15
ORB-HT-11004-APO BS Heat Apollo 15
ORB-HT-11005-APO CR Heat Apollo 15
ORB-HT-11006-APO CS Heat Apollo 15

NID-58 IONISATION Nittan 32
2KC/2KD OPTICAL Nittan 32
2SA-LS/2SA-70T-LS HEAT Nittan 32
TCA-70-LS HEAT Nittan 32
NFD-18-2/NFD-18-5 FLAME Nittan 3
NID-48F IONISATION Nittan 32
NS-12-7 HEAT Nittan 32
NC-9C-70T HEAT Nittan 32

ECO1002 HEAT/PHOTO System Sensor 20
ECO1003 PHOTO System Sensor 13
ECO1005 HEAT System Sensor 13
ECO1005T HEAT System Sensor 13

TM204 10 of 56 Issue 1.1

Although the current consumption of many detection devices would allow more than 32 to be connected
to a zone, this number should be limited to 32 to ensure that a short or open circuit on the wiring does
not prevent the indication of a fire alarm from more than 32 fire detectors and/or call points as required
by European standard EN54-2. If an active end of line LCMU (K14060) is used fit a maximum of 20
detectors per zone.

Table 3 - Compatible detector bases and call points

Model Type Manufacturer Comments

YBN-R/6 STANDARD WITH REMOTE LED Hochiki
YBO-R/4(IS) STANDARD WITH REMOTE LED (I.S.) Hochiki
YBN-R/6SK DIODE BASE Hochiki Must be used with

YBO-R/6R STANDARD LATCHING RELAY Hochiki
YBO-R/6RN STANDARD NON-LATCHING RELAY Hochiki
YBO-R/6RS DIODE BASE WITH LATCHING RELAY Hochiki Must be used with

ECO1000R STANDARD System Sensor
ECO1000BRSD DIODE BASE System Sensor Must be used with

456821-200 STANDARD BASE Apollo
456821-201 DIODE BASE Apollo Must be used with

ORB-MB-00001-APO Timesaver Base Apollo
ORB-DB-00003-APO Timesaver Diode Base Apollo
ORB-RB-10004-APO Timesaver Relay Base Apollo

MXT+1 470 OHM CALL POINT KAC
CX 470 OHM CALL POINT Fulleon

NXT+-T CALL POINT Nittan

ELECTRONICS FREE BASES ALL

Note: LCMU (Line Continuity Monitoring Device) part number TBA allows call points mounted down line
of detectors that have been removed from diode bases to continue to operate.

Table 4 - Compatible sounders

Model Type Manufacturer Comments

BANSHEE ELECTRONIC VIMPEX
WAFER ELECTRONIC VIMPEX
FIRECRYER RANGE ELECTRONIC VOICE VIMPEX
KOBELL MOTORISED VIMPEX

ASKARI ELECTRONIC FULLEON
ROSHNI ELECTRONIC FULLEON
SQUASHNI ELECTRONIC FULLEON
SYMPHONI ELECTRONIC FULLEON
ELECTRONIC BELL ELECTRONIC FULLEON
CFB BELLS MOTORISED FULLEON
B6 AND B8 BELLS SOLENOID FULLEON

Table 5 - Compatible I.S. barriers

Model Type Manufacturer

MTL5061 DETECTION ZONE GALVANIC ISOLATOR MTL
MTL778ac ALL SOUNDER CIRCUITS MTL

Note: Use galvanic isolator with Hochiki or Apollo detectors only

TM204 11 of 56 Issue 1.1

LCMU

LCMU

LCMU

LCMU

4 Control Panel Fascias

This drawing shows the fascias of the models available in the FireBeta XT+ range.

23911-K087(4+1) 23911-K085 (4+2) 23911-K088 (8+2)

23911-K089 (8+3) 23911-K090 (8+4)

The fascias are divided into sections for the detection panel and extinguishing modules. A standard
EN54-2 control and indicating equipment section with up to eight zones is located in the top aperture of
the panel fascia and EN12094-1 extinguishing modules are fitted in the lower apertures.

TM204 12 of 56 Issue 1.1

4.1 Removing the Detection Module

Open the control panel lid using the two 801 lock keys.
Before the chassis can be removed it will be necessary to disconnect the power connector terminal block

on the left hand side of the PCB. This is fitted on pins and can be pulled towards you to remove it. Do not
remove the wires from the terminals.

The chassis is held in place by two screws. Undo the two screws and lift the chassis gently away from
the box towards you.

With the chassis removed, there is much more room inside the panel for making off and dressing cables.
When cabling work is complete, the chassis can be re-fitted with the two screws and the terminal block

plugged back onto the pins on the board.

The extinguishing module chassis should not be removed.

1

2

3

4

5

6

7

8

Enter

Exit

Power

On

Fault

EXTINGUISHANT

RELEASE

PULL DOWN - PUSH BUTTON

General System StatusZone Chart

Fire

Power On

Delay On

General
Disablement

Alarm

Manual – only

Mode

System
Fault

Disablement

Test Mode On

Hold
Activated

Manual
Only

Power Fault

Sounder Fault /
Disablement

General Fault

System Fault

Alarm/ Fault

Warning Silenced

Alarm/FaultSilence/S ound

Warning Silence

More
Events

Activated

Released

Fire In Zone

1 2 3 4

Zone Fault/Test/ Disablement

Fire In Zone

5 6 7 8

Zone Fault/Test/ Disablement

Lamp

Reset Mode Select E nter

Up

Down

Reserve
Cylinders

Buzzer
Silenced

Mode
Select

Test

Enter

Exit

Power

On

Fault

EXTINGUISHANT

PULL DOWN - PUSH BUTTON

(+10 ) (+1)

RELEASE

Manual – only

Mode

System
Fault

Disablement

System Mode

Enable Control

Hold
Activated

Manual
Only

More
Events

Activated

Released

Up

Down

Mode
Select

Reserve
Cylinders

Buzzer
Silenced

TM204 13 of 56 Issue 1.1

5 Connecting to the Circuit Boards

All connections for field wiring are to rows of terminals along the top and bottom of the circuit boards.
Shielded fire alarm cable such as FP200 and metal cable glands must be used for all connections to the

panel. The shield of the cable must be bonded securely to the enclosure earth via a metal cable gland.
The resistance of any core of any cable must not exceed 25 ohms. The shield of the cable must be

bonded securely to the enclosure, via the metal gland.
Wiring should enter the enclosure at the top or back of the panel, using the knockouts provided and be

dressed tidily to the appropriate terminals.
Route mains cables away from all other cables and segregate by 50mm.
Terminals are capable of accepting wires of up to 2.5mm2.
Wiring must not go across the front of the circuit boards. If cable entries need to be in positions other

than at the knockouts provided, wiring must be fed behind and well away from the surface of the circuit
board.
The space at the bottom of the enclosure is largely occupied by the standby batteries, so this must be
taken in mind when considering cable entry points.

5.1 Detection Zone Wiring

The detection zones provide a nominal 20V dc to power conventional detectors and call points as listed
in compatibility tables 2 and 3.

The wiring is monitored for open and short circuit fault conditions by placing a 6K8 0.5W end of line
monitoring resistor in the last device that is wired to the zone circuit (resistors are supplied in panel
terminals).

Detection zone circuits must be wired as a single, radial circuit with no spurs to enable the monitoring
circuit to work correctly.

For systems that are required to comply with BS5839 Part1:2002 detector removal requirements, either
detector bases fitted with a Schottky diode should be used and the end of line resistor replaced with an
LCMU active end of line monitoring device or zener clamping bases such as Hochiki PA6 or Apollo
Savwire used.

TM204 14 of 56 Issue 1.1

5.2 Sounder Circuit Wiring

All sounders must be polarised type, if non-polarised sounders are used the control panel will
permanently show a fault condition. See table 4 for a list of compatible sounder types.

Sounder circuits are monitored for open and short circuit faults, by placing a 10K 0.25W end of line
monitoring resistor across the last device on the circuit.

Sounder circuits must be wired as a single, radial circuit with no spurs to enable the monitoring circuit to
work correctly.

POLARISED

SOUNDER

POLARISED

SOUNDER

SOUNDER

OUTPUT

TERMINALS

+

+ IN

+ OUT

+ IN

+ OUT

10K end of

line resistor

-

- IN

See manufacturers

details for detailed

connection information

- OUT

- IN

See manufacturers

details for detailed

connection information

5.3 Using Intrinsically Safe Barriers

FireBeta XT+ control panels support the use of I.S. barriers for connecting to equipment in hazardous
areas.

Only certified detectors, call points and sounders may be used in hazardous areas and these must be
connected to the control panel via a compatible I.S. barrier as listed in table 5.

Connection of the I.S. barrier changes the characteristics of the detection circuit so zones that have I.S.
barriers connected must be adjusted to function correctly.

Programmable options C61 to C68 on the detection section allow each zone to operate with I.S. barriers.
The amount of detectors and call points that can be connected to a zone is limited by the I.S. approval

system diagram, which should be supplied by the detector manufacturer.
The power rating of the end of line resistor will be dependent upon the zone classification rating (Gas

class) this will be specified on the system diagram.

- OUT

TM204 15 of 56 Issue 1.1

Detection zone wiring through an MTL5061 galvanic isolator

Detection zone wiring through an MTL778ac I.S. barrier

TM204 16 of 56 Issue 1.1

5.4 Monitored Inputs

Monitored inputs (Mode Select, Manual Release, Hold, Abort, Released Pressure Switch and Low
Pressure Switch) have the same characteristics as detection zone inputs and require a 6K8 0.5W end of
line monitoring resistor and a nominal, 470 ohm 1 W trigger resistor.

Example of wiring to a monitored input

5.5 Extinguishing Output

The Extinguishing output is capable of supplying up to 1 Amp for the maximum duration to a solenoid or
3 Amps for 20 milliseconds to an igniting actuator or Metron.

The wiring for solenoids and igniting actuators is different as shown below. Igniting actuators of different
types or from different manufacturers should not be mixed on the same circuit.

5.5.1 Solenoid Wiring

Solenoids must have a resistance of greater than 28 ohms to ensure that the maximum current rating of
the Extinguishing output is not exceeded.

Solenoids should be fitted with a suppression diode to prevent EMF generated by the solenoid when it
de-energises from upsetting the operation of the control panel.

Only polarised solenoids (i.e. solenoids fitted with an internal polarising diode) should be used.

Example of wiring a solenoid

TM204 17 of 56 Issue 1.1