Bosch AVENAR detector4000 User manual

AVENAR detector 4000
FAP‑425‑O | FAP‑425‑O‑R | FAP‑425‑OT | FAP‑425‑OT‑R |
FAP‑425‑DO‑R | FAP‑425‑DOT‑R | FAP‑425‑DOTC‑R |
FAP‑425‑DOTCO‑R | FAH‑425‑T‑R
en User manual

AVENAR detector 4000 Table of contents | en 3
Bosch Sicherheitssysteme GmbH User manual 2023-06 | 07 | F.01U.283.550
Table of contents
1Product Description 5
2System Overview 7
2.1 System Description 7
2.2 Functional Description of the Sensor Technology 7
2.2.1 Optical Sensor (Smoke Detector) 7
2.2.2 Thermal Sensor (Heat Detector) 8
2.2.3 Chemical Sensor (Gas Sensor) 8
2.3 Two-color LED 8
2.4 Features 8
2.5 Compatibility 9
2.6 Accessories 9
2.6.1 Detector bases 9
2.6.2 Detector Base Sounders 10
2.6.3 Acoustic/visual alarms 11
2.6.4 Remote Indicators 11
2.6.5 End-of-line modules 12
2.6.6 Mounting and protection accessories 13
3Basic installation and configuration notes 15
4Programming 16
4.1 FAP-425-DOTC-R and FAP-425-DOTCO-R 16
4.2 FAP‑425‑DOT‑R / FAP‑425‑OT‑R / FAP‑425‑OT 18
4.3 FAP‑425‑DO‑R / FAP‑425‑O‑R / FAP‑425‑O 19
4.4 FAH‑425‑T‑R 20
5Connection 21
5.1 Installing the Base 21
5.2 Connection 21
5.2.1 Connecting the MS 400/MS 400 B 22
5.2.2 Connecting the FAA‑MSR 420 22
5.3 Installation of the detector head 23
5.4 Detector removal 24
5.5 Address setting 24
5.6 Installing Remote Indicators 25
6Order Information 29
6.1 Detector Variants 29
6.2 Detector Bases 29
6.3 Detector Accessories 29
6.4 Installation Accessories 30
6.5 Detector Base Sounders 30
6.6 Remote Indicators 30
6.7 Service accessories 31
7Maintenance and Service 32
7.1 Detector Type Encoding 33
7.2 Test instructions 33
7.2.1 Test instructions for detectors with optical sensor 33
7.2.2 Test instructions for chemical and thermal sensor 34
7.3 Diagnostic data 34
7.4 Warranty 36
7.5 Repair 36

4en | Table of contents AVENAR detector 4000
2023-06 | 07 | F.01U.283.550 User manual Bosch Sicherheitssysteme GmbH
7.6 Disposal 36
8Technical Data 37

AVENAR detector 4000 Product Description | en 5
Bosch Sicherheitssysteme GmbH User manual 2023-06 | 07 | F.01U.283.550
1 Product Description
AVENAR detector 4000 combines standard detection procedures such as scattered light and
temperature measurement with gas measuring technology at the highest configuration level.
This method uses intelligent evaluation electronics (Intelligent Signal Processing - ISP) to
evaluate the signals from the smoke, thermal and chemical sensor.
Only if the signal combination corresponds to the characteristics of the area of operation,
selected during the programming, the alarm is triggered automatically. Additionally the time
behavior of the sensor signals is evaluated for fire and malfunction detection. Thus, for each
individual sensor the reliability of detection is increased. This complex evaluation of fire
characteristics (Pattern matching of fire characteristics) reduces the risk of a false alarm.
Active adjustment of the optical or the chemical sensor (drift compensation) takes place.
Adjustment to extreme disturbance variables is possible through manual or time-controlled
switch-off of individual sensors.
Multi-sensor fire detectors using a combination of smoke, carbon monoxide (CO) and heat
sensors can be used to achieve a high stability against deceptive phenomena and a response
to a broad range of fires. The combined information collected by the multi-sensor detectors
offers further areas of application.
AVENAR detector 4000 is available in different versions of single-sensor and multi-sensor
detectors.
All detectors of the AVENAR detector 4000 series are suitable as a technical measure to avoid
false alarms.
AVENAR detector 4000 is suitable for surface and flush cable mounting and includes separate
mounting points for dropped ceiling and concealed sockets.
Standards
All devices fulfill EN 54-17: Short-circuit isolators.
Identifier Description Category Standard
FAP-425-O Optical smoke detector, automatic address
setting only
Single sensor EN 54-7
FAP-425-O-R Optical smoke detector, automatic and manual
address setting
Single sensor EN 54-7
FAP-425-OT Combined optical and thermal smoke detector,
automatic address setting only
Multi-sensor EN 54-5, EN 54-7
FAP-425-OT-R Combined optical and thermal smoke detector,
automatic and manual address setting
Multi-sensor EN 54-5, EN 54-7
FAP-425-DO-R Dual-optical smoke detector, automatic and
manual address setting
Double sensor EN 54-7
FAP-425-DOT-R Combined dual-optical and thermal smoke
detector, automatic and manual address setting
Multi-sensor EN 54-5, EN 54-7,
EN 54-29
FAP-425-DOTC-R Combined dual-optical, thermal and chemical
smoke detector, automatic and manual address
setting
Multi-sensor EN 54-5, EN 54-7,
EN 54-29
FAP-425-DOTCO-R Combined dual-optical, thermal and chemical
(CO gas) detector, automatic and manual
address setting
Multi-sensor EN 54-5, EN 54-7,
EN 54-29, VdS 6017,
VdS 6018, VdS 6019

6en | Product Description AVENAR detector 4000
2023-06 | 07 | F.01U.283.550 User manual Bosch Sicherheitssysteme GmbH
Identifier Description Category Standard
FAH-425-T-R Thermal detector, automatic and manual
address setting
Single sensor EN 54-5

AVENAR detector 4000 System Overview | en 7
Bosch Sicherheitssysteme GmbH User manual 2023-06 | 07 | F.01U.283.550
2 System Overview
6
4
5
2
1
3
Figure2.1: Detector set-up
1 Smoke measurement chamber with
optical sensor
4 Individual display
2 Thermal sensor 5 PC board with evaluation electronics
3 Chemical sensor (covered on the cross-
section)
6 Detector Base
2.1 System Description
Up to three characteristics are integrated in the detector variants of AVENAR detector 4000:
– Optical (for smoke): O
– Dual-optical (for smoke): DO
– Thermal (for heat): T
– Chemical (for CO gas): C
Rotary switches (R) enable automatic or manual address setting: FAP-425-O and FAP-425-OT
are not fitted with rotary switches, but FAP-425-O-R and FAP-425-OT-R are fitted with rotary
switches.
The individual sensors are programmed via the LSN network manually via the FSP-5000-RPS
programming software. All sensor signals are analyzed continually by the internal signal
analysis electronics (ISP) and are linked with each other. By linking the sensors (combined
detectors), the detector can also be used in places where the work carried out gives rise to
light smoke, steam or dust. If a signal combination fits the selected identifier for the area of
operation for the detectors, an alarm is triggered automatically.
In order to adapt its sensitivity to the set threshold value the LSN improved detector monitors
and adjusts itself permanently throughout its life cycle.
A message is sent to the fire panel if the detector becomes too contaminated.
2.2 Functional Description of the Sensor Technology
2.2.1 Optical Sensor (Smoke Detector)
This optical sensor utilizes the scattered-light method.
An LED sends light into the measuring chamber, where it is absorbed by the labyrinth
structure. In the event of a fire, smoke enters the measuring chamber. The light is scattered by
the smoke particles and hits the photo diode, which transforms the quantity of light into a
proportional electrical signal.

8en | System Overview AVENAR detector 4000
2023-06 | 07 | F.01U.283.550 User manual Bosch Sicherheitssysteme GmbH
The DO detectors have a dual optical sensor that uses the different infrared and blue light
wavelengths (Dual Ray technology). This allows fires to be detected early and even the
smallest quantities of smoke (TF1, TF9) to be reliably detected.
i
Notice!
The dual-optical detectors make an alarm decision based on an intelligent combination of the
following criteria:
Amount of smoke density measured
Speed of smoke density increase
Size of smoke particles (as measured by Dual Ray technology)
2.2.2 Thermal Sensor (Heat Detector)
A thermistor in a resistance network is used as a thermal sensor; an analog-digital converter
measures the temperature-dependent voltage at regular intervals.
Depending on the specified category, the thermal sensor triggers the alarm status when the
maximum temperature of 54°C or 69°C is exceeded (thermal maximum), or if the
temperature rises by a defined amount within a specified time (thermal differential).
2.2.3 Chemical Sensor (Gas Sensor)
The chemical sensor detects mainly the carbon monoxide
(CO) that a fire produces. The chemical sensor also detects
hydrogen (H) and nitrogen monoxide (NO).
The underlying measurement principle is CO oxidation and the
measurable current that it creates. The sensor signal value is
proportional to the concentration of gas.
The chemical sensor gives additional information. Therefore
the chemical sensor is essential to suppress disturbance
variables reliably.
3
Chemical sensor
CO fire sensors can react promptly to smoldering fires. In many case they are better suited to
applications where other fire detection techniques are prone to false alarms. As a result, CO-
detection helps to support an even more reliable fire detection and leads in parallel to a
higher false alarm stability. This behavior is described in the guidelines VdS 6017, VdS 6018,
VdS 6019.
2.3 Two-color LED
The LSN improved detector has one centrally positioned two-color LED that flashes red when
indicating an alarm. When the alarm is canceled through the fire panel, then the detector
returns to its operating condition.
In operating condition the LED is off by default. Showing the operating condition can be
enabled with FSP-5000-RPS. Then, the LED flashes green to indicate the operating condition.
2.4 Features
– Active self-monitoring of the sensors, with display on the fire panel:
– Active adjustment of the threshold (drift compensation) if the optical sensor
becomes contaminated.
– Active adjustment of the threshold (drift compensation) of the chemical sensor.
– At up to 50V/m, the EMC is significantly higher than the normative requirements.
– Preservation of LSN loop functions in the event of wire break or short-circuit of a detector
through integrated isolators.

AVENAR detector 4000 System Overview | en 9
Bosch Sicherheitssysteme GmbH User manual 2023-06 | 07 | F.01U.283.550
– Individual detector identification on the fire panel in the event of an alarm. Alarm
indication on the detector with a flashing red LED.
– Programmable sensitivity, i.e. can be adjusted to the area of operation.
– Increased detection and false alarm security thanks to evaluation of the temporal
behavior of fire and of disturbance variables.
– Activation of a remote indicator is possible.
– To prevent that unauthorized persons have access to the device, the locking clip can be
activated.
– Dust-resistant labyrinth and cap construction.
– The chamber maid plug (a cleaning opening with a plug) is for blowing out the optical
chamber with compressed air. (Not required for the FAH-425-T-R Heat detector.)
– Use of shielded or unshielded cables permitted.
– The LSN improved version line technology supports the connection of up to 254 AVENAR
detector 4000 series detectors per loop or stub (please observe national regulations in
this regard).
– Flexible network structures without additional elements are possible (T-tapping is not
feasible with detector versions without rotaries).
– Automatic or manual detector addressing selectable.
– Status information and extensive diagnostic data (e.g. serial number, operating hours,
contamination level, EMC strengh, current analog values) is available on fire panel screen
and via Condition Monitoring.
– Compliant with EN 54, EN 50131 and VdS guidelines.
2.5 Compatibility
– For connecting to fire panels with extended range of LSN features.
– In classic mode, it can be connected to BZ 500 LSN, UEZ 2000 LSN and UGM 2020 LSN
and to other panels or their receiver modules with identical connection properties but
with the existing LSN system limits.
i
Notice!
The dual-optical detectors of the AVENAR detector 4000 series cannot be used with the
FPA-5000 type A panel controller.
i
Notice!
FAP-425-DOTCO-R is supported on AVENAR panel 8000 and AVENAR panel 2000 only.
2.6 Accessories
2.6.1 Detector bases
Detectors in the AVENAR detector 4000 series are operated in one of the following detector
bases.
The detector bases are suitable for surface mounting or for flush mounting. There are separate
fixing points for ceiling-mount boxes and for flush-mount boxes. They also fit all common bore
patterns.
The bases are made from white ABS plastic (color similar to RAL 9010) and have a matte
surface finish.

10 en | System Overview AVENAR detector 4000
2023-06 | 07 | F.01U.283.550 User manual Bosch Sicherheitssysteme GmbH
The bases have screw terminals for connection of the detector and its accessories to the fire
panel. Contacts connected with the terminals guarantee a secure electrical connection when
installing the AVENAR detector 4000 Heat detector. Cable diameters of up to 2.5mm2 can be
used.
The detector head can be secured against unauthorized removal with a locking clip.
MS400
MS400 is the standard detector base. It has seven screw
terminals.
MS400 B
MS400 standard detector base with Bosch-branding.
FAA‑MSR420
FAA-MSR420 is a detector base with a change-over contact relay
(type C).
FAA-MSR 420 Detector base with relay is for connecting to fire
panels with LSN improved technology.
FAA-420-SEAL
In damp rooms you can supplement the MS 400, MS 400 B and
FAA-MSR 420 detector bases with FAA-420-SEAL. The damp room
seal is made of TPE and prevents condensing water from entering
the detector.
MSC420
MSC 420 Base extension with damp room seal is designed for
surface-mounted cable feed via cable protection conduits. It has
two opposing pre-cut entry points of 20mm diameter and two
additional opposing and prepared entry points for diameters up
to 28mm.
MSC 420 has a diameter of 120mm and a height of 36.7mm. To
protect against condensed water penetration, a seal is placed on
the bottom of the MSC420.
2.6.2 Detector Base Sounders
Detector base sounders are used if acoustic alarm signaling is required directly at the fire
source.

AVENAR detector 4000 System Overview | en 11
Bosch Sicherheitssysteme GmbH User manual 2023-06 | 07 | F.01U.283.550
FNM-420U-A-BS
Uninterruptible analog addressable base sounders for indoor
use, white or red: FNM-420U-A-BSWH, FNM-420U-A-BSRD
FNM-420-A-BS
Analog addressable base sounders for indoor use, white or
red: FNM-420-A-BS-WH, FNM-420-A-BS-RD
2.6.3 Acoustic/visual alarms
Uninterruptible analog addressable combination of base
sounder (EN 54-3) and visual alarm (EN 54-23) for indoor use.
White housing, white or red flash: FNX‑425U‑WFWH,
FNX‑425U‑RFWH
Red housing, white or red flash: FNX‑425U‑WFRD,
FNX‑425U‑RFRD
2.6.4 Remote Indicators
The remote indicator is used when the automatic detector is installed in a place hidden or not
visible, like in closed rooms, false ceilings or walls. It is recommended to mount the remote
indicator in corridors or access pathways of the corresponding building sections or rooms.
FAA‑420‑RI‑ROW
For applications where the automatic detector is not visible, or
mounted in false ceilings/floors.

12 en | System Overview AVENAR detector 4000
2023-06 | 07 | F.01U.283.550 User manual Bosch Sicherheitssysteme GmbH
FAA‑420‑RI‑DIN
For applications where the automatic detector is not visible, or
mounted in false ceilings/floors. This version complies with DIN
14623.
2.6.5 End-of-line modules
FLM-420-EOL4W-S
The FLM-420-EOL4W-S is a 4 wire EOL module.
FLM-420-EOL4W-D
The FLM-420-EOL4W-D is a 4 wire EOL module.
FLM-420-EOL2W-W
The FLM-420-EOL2W-W is a 2 wire EOL module.

AVENAR detector 4000 System Overview | en 13
Bosch Sicherheitssysteme GmbH User manual 2023-06 | 07 | F.01U.283.550
2.6.6 Mounting and protection accessories
Support Plates
The support plates are made from 1.8mm thick ABS plastic and are clamped between the
detector base and the ceiling.
TP4 400 Support Plate
The TP4 400 Support Plate is intended for an installation
height up to 4m and is designed for labels up to a size of
approx. 65 x 34mm.
15 / 4
TP8 400 Support Plate
The TP8 400 Support Plate is intended for an installation
height up to 8m and is designed for labels up to a size of
approx. 97 x 44mm.
SK400 Protective Basket
The SK400 Protective Basket is installed over the detector
and gives the detector substantial protection against
damage.
If the detector is mounted in a sports facility, for example,
the protective basket prevents balls or other sports
equipment from hitting the detector and damaging it.
SSK400 Protective Dust Cover
The SSK400 Protective Dust Cover is necessary during
construction work to protect an installed detector base,
with or without detector module, from contamination. The
protective dust cover made of polypropylene (PP) is pushed
onto the installed detector base.
WA400 Wall bracket
The WA400 Wall bracket is used to install detectors above
door frames or similar in compliance with DIBt.
The bracket is supplied with a pre-mounted detector base
(the detector shown is not included in the scope of
delivery).

14 en | System Overview AVENAR detector 4000
2023-06 | 07 | F.01U.283.550 User manual Bosch Sicherheitssysteme GmbH
MH400 Detector Heating Element
The MH400 Detector Heating Element is required if the
detector is used in an environment where water
condensation can occur, such as in a warehouse that must
frequently be opened briefly for delivery vehicles.
The detector heating element is connected to the + V/0V
terminals in the detector base.
Operating voltage: 24VDC
Resistance: 1kΩ
Maximum power dissipation: 3W.
The heating is supplied with power either by the fed-
through supply voltage via the central unit or by a separate
power pack.
With supply via the central unit, the number of detector
heating elements depends on the cable diameter and line
length used.

AVENAR detector 4000 Basic installation and configuration notes | en 15
Bosch Sicherheitssysteme GmbH User manual 2023-06 | 07 | F.01U.283.550
3 Basic installation and configuration notes
– Multi-sensor fire detectors must be planned in line with the guidelines for optical
detectors until a guideline for their planning is developed in collaboration with the VdS
(see also DIN VDE0833 Part2 and VDS2095):
– Maximum monitoring area 120m2.
– Maximum installation height 16m.
– If occasional switch-off of the optical sensor is required, the planning must occur
according to the guidelines for heat detectors (see DIN VDE 0833 Part 2 and VDS 2095):
– Maximum monitoring area 40m2.
– Maximum installation height 7.5m.
– Maximum permissible air speed: 20m/s.
– FAH-425-T-R detectors must be configured according to category A1R when planning fire
barriers conforming to DIBt.
i
Notice!
AVENAR detector 4000 Automatic Fire Detectors are not designed for exterior use.
i
Notice!
Planning must take the anticipated total current and line resistance into account to ensure
each detector has an operating voltage of at least 15VDC.
i
Notice!
Operating temperature
When using AVENAR detector 4000 in combination with AVENAR all-in-one 4000 consider the
operation temperature of -10 to +55°C.

16 en | Programming AVENAR detector 4000
2023-06 | 07 | F.01U.283.550 User manual Bosch Sicherheitssysteme GmbH
4 Programming
Programming occurs via a PC or laptop connected to the fire panel with FSP-5000-RPS
(Remote Programming System) for panels with LSN improved version line technology
AVENAR detector 4000 is programmed by entering the area of operation. The selection of the
area of operation determines the optimum characteristic field for fire and disturbance variable
evaluation.
The operating mode can be changed for FAP-425-OT-R|FAP-425-OT, as well as for FAP-425-
DOTC-R|FAP-425-DOTCO-R and FAP-425-DOT-R, i.e. individual sensors can be switched off:
– Switch to optical (O sensor sensitivity = low, T sensor = switched off)
– Switch to thermal differential (T sensor sensitivity = A2R, O sensor = switched off)
– Switch to thermal maximum (T sensor sensitivity = A2S, O sensor = switched off).
In the case of the purely optical FAP-425-O-R|FAP-425-O and FAP-425-DO-R detectors, the
sensitivity of the optical sensor can be set to three levels. Depending on the operating
location, the optical sensor in the detector is thus adjusted to the environmental conditions.
i
Notice!
For fire detection, the purely optical detector also evaluates the time behavior of the fire
characteristics, which differs significantly from the time behavior of disturbance variables and
that occurring during a detector test
As a result, there are also different trigger times when testing with a test aerosol outside of
Walk test operation (10s to max 60s), depending on the selected sensitivity adjustment.
FAH-425-T-R is programmed by taking into account the ambient temperature, the installation
height and the category as per EN54 Part5.
Programming of the optical, thermal, and chemical sensors and the linking of all sensors via
algorithms significantly increases the detection ability and security against false alarms.
4.1 FAP-425-DOTC-R and FAP-425-DOTCO-R
i
Notice!
The default setting of FAP-425-DOTC-R and FAP-425-DOTCO-R in FSP-5000-RPS is Hotel
room/smoker room.
Installation location Detector type Sensitivity Standard
Temperature
(T)
Optical (O) Chemical (C)
Office after hours O, Tmax, Tdiff, C High (A2R) High High EN 54-5, EN 54-7,
EN 54-29
Hotel room/smoker room
= default setting
O, Tmax, Tdiff, C High (A2R) Low* Low EN 54-5, EN 54-7
Office day mode O, Tmax, Tdiff, C Low (BR) Medium High EN 54-5, EN 54-7,
EN 54-29
Server room O, Tmax, Tdiff, C High (A2R) High High EN 54-5, EN 54-7,
EN 54-29
Production location O, Tmax, Tdiff, C Low (BR) Low* Medium EN 54-5, EN 54-7
Garage O, Tmax, Tdiff, C High (A2R) Low* Low EN 54-5, EN 54-7

AVENAR detector 4000 Programming | en 17
Bosch Sicherheitssysteme GmbH User manual 2023-06 | 07 | F.01U.283.550
Installation location Detector type Sensitivity Standard
Temperature
(T)
Optical (O) Chemical (C)
Warehouse without
combustion-engine traffic
O, Tmax, Tdiff, C Low (BR) High High EN 54-5, EN 54-7,
EN 54-29
Conference room/waiting
room/exhibition hall
O, Tmax, Tdiff, C High (A2R) Low* Medium EN 54-5, EN 54-7
Kitchen/casino/restaurant O, Tmax, C Low (BS) Low* Low EN 54-5, EN 54-7
Warehouse with
combustion-engine traffic
O, Tmax, Tdiff, C Low (BR) Low* Low EN 54-5, EN 54-7
Thermal sensor: fixed and
rate-of-rise temperature
Tmax, Tdiff High (A2R) - - EN 54-5
Optical sensor O - Low - -
Thermal sensor: fixed
temperature
Tmax High (A2S) - - EN 54-5
Optical and CO sensor O, C - Low High -
School/kindergarten O, Tmax, Tdiff, C High (A2R) Medium High EN 54-5, EN 54-7,
EN 54-29
Theater/concert hall O, Tmax, Tdiff, C High (A2R) Medium High EN 54-5, EN 54-7,
EN 54-29
Optical + thermal + CO
sensor: high sensitivity**
O, Tmax, Tdiff, C High High High VdS 6019
Optical + thermal + CO
sensor: low sensitivity**
O, Tmax, Tdiff, C Low Medium High VdS 6019
Thermal and CO sensor*** Tmax, Tdiff, C Low - High VdS 6018
CO sensor*** C - - High VdS 6017
O = optical sensor, Tmax = thermal maximum unit, Tdiff = thermal differential unit, C = chemical sensor
* If optical sensor sensitivity is low, the detector will only trigger if smoke as well as an increase in CO
concentration or temperature is detected.
** Suppression of single fire phenomena, only available for FAP-425-DOTCO-R
*** only available for FAP-425-DOTCO-R

18 en | Programming AVENAR detector 4000
2023-06 | 07 | F.01U.283.550 User manual Bosch Sicherheitssysteme GmbH
4.2 FAP‑425‑DOT‑R / FAP‑425‑OT‑R / FAP‑425‑OT
i
Notice!
The default setting of FAP-425-DOT-R, FAP-425-OT-R and FAP-425-OT in FSP-5000-RPS is
Office day mode.
Installation location Detector
type
Sensitivity Standard
Temperature (T) Optical (O)
Office after hours O, Tmax, Tdiff High (A2R) High EN 54-5, EN 54-7,
EN 54-29 (FAP-425-
DOT-R only)
Hotel room/smoker room O, Tmax, Tdiff High (A2R) Low EN 54-5, EN 54-7
Office day mode
= default setting
O, Tmax, Tdiff Low (BR) Medium EN 54-5, EN 54-7,
EN 54-29 (FAP-425-
DOT-R only)
Server room O, Tmax, Tdiff High (A2R) High EN 54-5, EN 54-7,
EN 54-29 (FAP-425-
DOT-R only)
Production location O, Tmax, Tdiff Low (BR) Low EN 54-5, EN 54-7
Garage
– FAP-425-OT-R, FAP-425-OT
– FAP-425-DOT-R
Tmax, Tdiff
O, Tmax, Tdiff
High (A2R)
High (A2R)
-
Low
EN 54-5
EN 54-5, EN 54-7
Warehouse without combustion-engine
traffic
O, Tmax, Tdiff Low (BR) High EN 54-5, EN 54-7,
EN 54-29 (FAP-425-
DOT-R only)
Conference room/waiting room/exhibition
hall
O, Tmax, Tdiff High (A2R) Low EN 54-5, EN 54-7
Kitchen/casino/restaurant Tmax Low (BS) - EN 54-5
Warehouse with combustion-engine traffic O, Tmax, Tdiff Low (BR) Low EN 54-5, EN 54-7
Thermal sensor: fixed and rate-of-rise
temperature
Tmax, Tdiff High (A2R) - EN 54-5
Optical sensor O - Low -
Thermal sensor: fixed temperature Tmax High (A2S) - EN 54-5
School/kindergarten O, Tmax, Tdiff High (A2R) Medium EN 54-5, EN 54-7,
EN 54-29 (FAP-425-
DOT-R only)
Theater/concert hall O, Tmax, Tdiff High (A2R) Medium EN 54-5, EN 54-7,
EN 54-29 (FAP-425-
DOT-R only)
O = optical sensor (dual-optical in FAP-425-DOT-R detectors), CO = chemical sensor (for CO gas)
Tmax = thermal maximum unit, Tdiff = thermal differential unit

AVENAR detector 4000 Programming | en 19
Bosch Sicherheitssysteme GmbH User manual 2023-06 | 07 | F.01U.283.550
4.3 FAP‑425‑DO‑R / FAP‑425‑O‑R / FAP‑425‑O
i
Notice!
The default setting of FAP-425-DO-R, FAP-425-O-R and FAP-425-O in FSP-5000-RPS is
Medium.
Installation location Sensitivity
Office after hours High
Hotel room/smoker room Low
Office day mode Medium
Server room High
Production location Low
Warehouse without combustion-engine traffic High
Conference room/waiting room/exhibition hall Low
School/kindergarten Medium
Theater/concert hall Medium
Warehouse with combustion-engine traffic Low

20 en | Programming AVENAR detector 4000
2023-06 | 07 | F.01U.283.550 User manual Bosch Sicherheitssysteme GmbH
4.4 FAH‑425‑T‑R
i
Notice!
EN54 Part5
The default setting of FAH-425-T-R in FSP-5000-RPS is A2R.
Sensitivity Description
A2R Typical application temperature: 25°C, Tmax + Tdiff, height up to 6m
A2S Typical application temperature: 25°C, only Tmax, height up to 6m
A1R Typical application temperature: 25°C, Tmax + Tdiff, height 6m to 7.5m
A1 Typical application temperature: 25°C, only Tmax, height 6m to 7.5m
BR Typical application temperature: 40°C, Tmax + Tdiff, height up to 6m
BS Typical application temperature: 40°C, only Tmax, height up to 6m
Categories as per EN54 Part5
With the detector types FAH-425-T-R, it is possible to set one of the categories listed above in
line with planning.
In the categories A1, A2S and BS, the FAH-425-T-R is operated purely as a thermal maximum
detector. In this case, the detector does not activate at below 54°C in category A2S, and not
below 69°C in category BS.
The categories A2S and BS are therefore particularly suitable for applications where higher
temperature rates-of-rise occur over a longer period, e.g. in kitchens or boiler rooms.
The categories A1R, A2R and BR indicate that the thermal differential unit is active in addition
to the thermal maximum unit.
These categories are especially well-suited for use in unheated buildings where the ambient
temperature can vary greatly but high temperature rates-of-rise do not last long.
The thermal differential unit enables categories A1R/A2R detectors to respond at T<54°C and
category BR detectors at T<69°C.
The selection of the category also depends on the installation height of the detector.
To maintain the greatest possible security against false alarms, categories A1 and A1R should
not be selected for room heights below 6m, although these categories are in theory
permitted. Furthermore, the expected application temperature must be taken into
consideration.
Temperature
rate-of-rise [K
min-1]
Response time for detectors in the
category A1R
Response time for detectors in the
category A2R/BR
Lower limiting
value [min/sec]
Upper limiting
value [min/sec]
Lower limiting
value [min/sec]
Upper limiting
value [min/sec]
10 1min 4min 20s 2min 5min 30s
20 30s 2min 20s 1min 3min 13s
30 20s 1min 40s 40s 2min 25s