Bosch FAS 420 En Us Operation Manual 1272472203

User Manual: Bosch en-us FAS‑420 Series Aspirating Smoke Detectors LSN improved version

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FAS-420 Aspirating Smoke Detector LSN
"improved version"
FAS-420
en Operation Guide
FAS-420 Aspirating Smoke Detector LSN
"improved version" Table of Contents | en 3
Bosch Sicherheitssysteme GmbH Operation Guide F.01U.029.275 | 5.0 | 2010.11
Table of Contents
1 General 6
1.1 Introduction 6
1.2 Safety Instructions 6
1.3 Warranty 6
1.4 Copyright 7
1.5 Disposal 7
2 Technical Specifications 8
2.1 Product Description 8
2.2 Areas of Application 10
2.3 System Overview 12
2.4 Functions 13
2.5 FAS-420 Series Aspirating Smoke Detectors and Accessories 15
2.5.1 Overview 15
2.5.2 FAS-420 Connections 16
2.5.3 FAS-420-TP1/FAS-420-TP2 Displays 16
2.5.4 FAS-420-TT1/FAS-420-TT2 Displays 17
2.5.5 FAS-ASD-DIAG Diagnostic Software 18
2.5.6 Remote Indicators 18
2.5.7 Device Mounting 19
2.5.8 Measures for Reducing Operating Noise 19
2.6 Pipe System Components 20
2.6.1 Overview 20
2.6.2 Air sampling openings 21
2.6.3 Ceiling Lead-through 22
2.6.4 Air-Return Pipe for Pressure Areas and Atmospheric Loads 23
2.6.5 Water Separator for Humid Areas 24
2.6.6 Detonation Safety Barrier for Potentially Explosive Areas 25
2.7 Scope of Delivery: Smoke Aspiration System 26
2.8 Technical Specifications 28
2.8.1 FAS-420 Aspirating Smoke Detector series 28
2.8.2 FAS-420 Aspirating Smoke Detector series -SL Variants 29
2.8.3 Pipe system 30
2.8.4 Smoke Aspiration System Components 30
3 Planning 32
3.1 Regulations 32
3.2 Principles of Pipe Planning 33
3.3 Airflow Monitoring 36
3.4 Defining the Response Sensitivity 37
3.5 Planning Limits 38
3.6 Standard Pipe Planning 39
3.6.1 Determining the Necessary Accessories 39
3.6.2 Pipe Planning with Pipe Accessories 39
3.7 Pipe Planning for Single-Hole Monitoring 46
3.8 Simplified Pipe Planning 52
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3.9 Planning for Long Pipe Feed Lines 56
3.10 Planning with Acceleration Openings 56
3.11 Planning for Forced Airflow 58
3.12 Power Supply 62
4 Installing the Aspirating Smoke Detector 64
4.1 General 64
4.2 Installing the Detector Module 64
4.3 Settings on the Unit Motherboard 65
4.3.1 Setting the Detector Address 65
4.3.2 Setting the Fan Voltage 66
4.3.3 Setting the Fan Voltage (SL Variant) 66
4.3.4 Number of Detector Modules 66
4.4 Installing the Unit 67
4.5 Connection to the Fire Panel 70
4.5.1 Electrical Connection 70
4.5.2 LSN Configuration 71
4.5.3 Parameter Settings via RPS (Remote Programming Software) 71
4.6 Connecting an External Detector Alarm Display 72
4.7 Data Logging 72
4.8 Replacing a Detector Module 72
5 Installation of the Pipe System 74
5.1 Length Change of the Pipe System 75
5.2 Air Sampling Openings 76
5.3 Ceiling Lead-through 77
5.4 Monitoring with Forced Airflow 78
5.4.1 Detection at Intake and Exhaust Openings 78
5.4.2 Detection in the Bypass 78
5.5 Air Filter 79
5.5.1 Installing the Air Filter Box 79
5.5.2 Filter Change on the Air Filter Box 79
5.6 Air-return Pipe 80
5.7 Three-way Tap 81
5.8 FAS-ASD-WS Water Separator 82
5.9 Detonation Safety Barrier 83
5.10 Test Adapter 83
6Commissioning 85
6.1 Preparation 85
6.2 Calibrating the Airflow Sensor 86
6.2.1 Air-Pressure-Independent Calibration 86
6.2.2 Air-Pressure-Dependent Calibration 87
6.3 Testing the Detector Module and Alarm Transmission 87
6.4 Checking Malfunction Transmission 88
6.5 Checking Airflow Monitoring 88
6.6 FAS-420 Functional Test 89
6.6.1 Preparations for the Functional Test 89
6.6.2 Conducting the Functional Test 90
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7 Maintenance 91
7.1 Visual check 91
7.2 Flash Code Table 91
7.2.1 1 Flash - Error: Internal Voltage Monitoring 1 91
7.2.2 2 Flashes - Error: Internal Voltage Monitoring 2 92
7.2.3 3 Flashes - Error: Fan Voltage Monitoring 92
7.2.4 4 Flashes - Error: Air Pressure Correction Voltage Monitoring 93
7.2.5 5 Flashes - Error: Programming Error 94
7.2.6 6 Flashes or 7 Flashes - Error: Internal Error 1 or Internal Error 2 94
7.2.7 8 Flashes: Unit Initialization 94
7.3 Detector Module and Alarm Transmission 94
7.4 Pipe system 95
7.5 Check the airflow sensor calibration 95
7.6 Airflow monitoring 97
7.7 Malfunction Transmission 97
7.8 Maintenance Intervals 97
8 Appendix 99
8.1 DIP Switch Settings for Detector Addresses 100
8.2 Air Pressure Correction Tables for Airflow Sensor Calibration 102
8.2.1 Equipment protection 102
8.2.2 Space Protection (I-pipe System) 103
8.2.3 Space Protection (U, Double U, and H-pipe System) 104
8.3 Planning without filter 105
8.3.1 Without any other pipe accessories 105
8.3.2 With water separator 105
8.3.3 With detonation safety barrier 106
8.4 Planning with air filter 107
8.4.1 Without any other pipe accessories 107
8.4.2 With water separator 107
8.4.3 With detonation safety barrier 108
8.5 Commissioning/Service Test Record for Aspirating Smoke Detectors in the FAS-420 series 109
Index 110
6en | General FAS-420 Aspirating Smoke Detector LSN
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1 General
1.1 Introduction
This operation guide describes the smoke aspiration systems featuring FAS-420 series
aspirating smoke detectors and the associated aspiration pipe system.
In this operation guide, the designation FAS-420 refers to all FAS-420 series (FAS-420-TP1,
FAS-420-TP2, FAS-420-TT1 and FAS-420-TT2) as well as all -SL variants. Specific references
are made to differences between the individual versions.
1.2 Safety Instructions
The following symbols identify points in this operation guide that require particular attention
in order to guarantee smooth operation and prevent damage.
1.3 Warranty
This operation guide is subject to technical modification without prior notice and makes no
claim to completeness.
As a rule, our “delivery and installation conditions” apply.
Warranty and liability claims in case of personal injury and property damage cannot be
asserted if they are based on one or more of the following causes:
– Insufficient attention to the instructions with respect to planning, installation of the
aspirating smoke detector, installation of the pipe system, commissioning and
maintenance
– Use of the smoke aspiration system contrary to the regulations
– Insufficient monitoring of wearing parts
– Faulty repairs
– Arbitrary constructional changes to the smoke aspiration system
– Acts of God.
BOSCH Sicherheitssysteme GmbH, hereinafter referred to as BOSCH, assumes no liability for
damage or malfunction arising through failure to comply with this operation guide.
NOTICE!
Operational malfunction can be prevented and operational improvements can be achieved by
observing these instructions.
CAUTION!
This symbol warns against actions and behavior which, if disregarded, could cause property
damage.
WARNING!
This symbol warns against actions and behavior which, if disregarded, could cause personal
injury.
WARNING!
The equipment may only be installed by authorized and qualified personnel!
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1.4 Copyright
The copyright to this operation guide remains with BOSCH.
This operation guide is intended exclusively for installation engineers and their employees.
Reprinting this operation guide or extracts thereof is permitted for internal purposes only.
1.5 Disposal
Unusable electrical and electronic devices or modules must not be disposed of with normal
household refuse. They must be disposed of in compliance with the applicable regulations and
directives (e.g. WEEE in Europe).
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2 Technical Specifications
2.1 Product Description
Aspirating smoke detectors from the FAS-420 series are active fire detection devices that are
connected directly to the Local SecurityNetwork (LSN) "improved version" for early fire
detection. They are used for room and equipment protection as well as for monitoring air-
conditioning units or ducts.
Local SecurityNetwork (LSN) improved
The FAS-420 series aspirating smoke detectors were developed specifically for connection to
the FPA-5000 Modular Fire Panel and offers the upgraded features of the LSN "improved
version" technology.
– Flexible network structures, including T-tapping with no additional elements
– Up to 254 LSN-improved elements per loop or stub line
– Unshielded cable can be used.
The FAS-420 series also offers all the established benefits of LSN technology. The operating
data and fault messages can be read off the FPA-5000 operating and display unit.
Variants
The FAS-420-TP1, FAS-420-TP2, FAS-420-TP1-SL and FAS-420-TP2-SL variants feature LED
displays indicating operating mode, faults and alarms (the FAS-420-TP2 and FAS-420-TP2-SL
have two alarm displays). The FAS-420-TT1, FAS-420-TT2, FAS-420-TT1-SL and
FAS-420-TT2-SL offer differentiated alarm displays (info, pre and main alarm) as well as a 10-
segment smoke level display (on the FAS-420-TT2 and FAS-420-TT2-SL, all alarm and smoke
level displays are doubled).
The FAS-420-TP1, FAS-420-TP1-SL, FAS-420-TT1 and FAS-420-TT1-SL variants are each fitted
with a detector module.
The FAS-420-TP2, FAS-420-TP2-SL, FAS-420-TT2 and FAS-420-TT2-SL variants each have two
integrated detector modules. Two aspiration pipes can be connected, enabling two areas to
be monitored. This effectively doubles the monitoring area.
Dual-detector dependency
The use of two detector modules in variants FAS-420-TP2 and FAS-420-TT2 also enables a
dual-detector dependency to be realized. This means that one area can be monitored by two
pipe systems.
Two alarm stages
Alternatively, the FAS-420-TP2 and FAS-420-TT2 can have two alarm stages configured. A pipe
system is connected via a pipe adapter on two detector modules. Selecting different response
sensitivities for the detector modules enables the time-staggered triggering of two main
alarms.
Dual-zone dependency
Connecting to the FPA-5000 Modular Fire Panel and programming using RPS software also
permit a dual-zone dependency.
Sensitivity
Three detector module versions are available for the FAS-420 aspirating smoke detector
series:
– DM-TT-50(80) with a response sensitivity of up to 0.5%/m (0.8%/m) light obscuration
– DM-TT-10(25) with a response sensitivity of up to 0.1%/m (0.25%/m) light obscuration
– DM-TT-01(05) with a response sensitivity of up to 0.015%/m (0.05%/m) light obscuration
Depending on the detector module used, the FAS-420-TT1 and FAS-420-TT2 models can
achieve a resolution ten times higher for displaying up to 0.05%/m (0.08%/m), 0.01%/m
(0.025%/m) or 0.0015%/m (0.005%/m) light obscuration. Further sensitivity levels to suit the
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application range can be selected via the RPS programming software.
The new High-Power-Light-Source technology permits a broad detection spectrum over all
standardized fires (for response sensitivity, detection points, see Section 3.4 Defining the
Response Sensitivity, page 37).
LOGIC · SENS
The intelligent signal processing LOGIC · SENS distinguishes between deception variables and
fire events in order to prevent false alarms.
Reliable airflow monitoring
Analogous to point-type smoke detectors, which are monitored electronically for wire breaks
and short-circuits, highly sensitive and dependable airflow monitoring is required for smoke
aspiration systems. The airflow sensors used in the FAS-420 series reliably detect
malfunctions such as pipe breakage or obstructions in the air sampling openings.
The small airflow unit also contains a dynamic airflow sensor that enables a response to small
and fast changes in the airflow.
Airflow monitoring is temperature-compensated and can be set depending on the air
pressure.
Patented air sampling openings
The air sampling openings of the pipe system require clearly defined bore diameters that
depend on the planning and design. These precise air sampling openings are created using
patented aspiration reducing film sheets, marking tape, and clips, which not only permit easy
installation, but also prevent "whistling" noises. Another advantage is the quick and easy
detection and checking of the air sampling opening diameters.
Point-type detector projection
The system’s aspiration points can be equated with point-type smoke detectors. The
monitoring areas can therefore be planned in accordance with the applicable national
regulations.
Diagnostics
A system with FAS-ASD-DIAG Diagnostic Software, which enables quick and convenient error
containment, is available for maintenance and service. The current and stored unit status is
read-out via cable data transmission to the PC.
Selecting the fan voltage
The fan voltage for special planning can be increased from 6.9 V to 9 V by relocating the fan
jumper. This increases the air transport speed and therefore reduces detection time.
For -SL variants, the fan voltage can also be set to 6.5 V.
NOTICE!
The sensitivity value is based on measurements with standard test fires (old value in
brackets).
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2.2 Areas of Application
Thanks to their detection principle, FAS-420 aspirating smoke detectors represent an
extremely versatile fire alarm system.
Principle
Air samples are taken from the monitoring area by a pipe system with defined aspiration
openings and then fed to the detector module.
This is especially well-suited for areas in which point-type detectors cannot be used or can
only be used under certain circumstances. These include:
– Areas that are difficult to access, in which point detectors are difficult to install and
maintain
– Air-conditioned areas
– Areas with a height greater than that allowed for point detectors
– Areas in which point detectors are not desired for aesthetic reasons
– Areas in which electromagnetic fields are influential
– Areas that are exposed to high or low temperatures
– Areas with contaminated air that require filter elements
– Areas that must be protected against vandalism.
Space protection
The FAS-420 series is suitable for monitoring areas such as
– Those with double floors, false ceilings
– Tunnels, ducts, barely accessible hollow spaces
– Storage, high-rise warehouses, elevator shafts
– Museums, cultural institutions
– Freezer storage.
Area monitoring with air-conditioning
Area monitoring occurs
– In rooms with air-conditioning for server rooms etc.
– In ventilation ducts
– Over double floors, false ceilings
– In IT rooms, e-distributor rooms, transformer cells
– On air-conditioning units (see Figure 2.2) or
– In the bypass in air-conditioning ducts.
Figure 2.1 Principle of area monitoring with FAS-420 series aspirat-
ing smoke detectors
1 Room pipe system
2 Double-floor pipe system
FAS / FCS
1
2
TITANUS MICRO·SENS ®
E
D
C
B
A
10
9
8
7
6
5
4
3
2
1
TITANUS MICRO·SENS ®
E
D
C
B
A
10
9
8
7
6
5
4
3
2
1
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Equipment protection
Equipment monitoring involves the direct monitoring of an object. These can be unventilated
or force-cooled units or cabinets, e.g.
– Distributor cabinets, switching cabinets
– Telephone-switching equipment
– Measuring, control, and regulation equipment.
Area monitoring in noise-sensitive areas
All -SL variants are equipped with an extremely quiet fan and can therefore be used in noise-
sensitive areas, such as
–Hotels
– Hospitals
–Libraries
– Prisons etc.
Figure 2.2 Monitoring options for an air-conditioning unit or an air-
conditioning duct (depiction of principle)
1 Air-conditioning duct
2 Air-conditioning unit
FAS / FCS
FAS / FCS
FAS / FCS
1
2
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FAS-420 series aspirating smoke detectors can also be used for early fire detection in areas
with special-purpose air conditioning.
Its high detection sensitivity enables high value goods and equipment to be monitored. The
FAS-420 series is therefore especially suitable for application areas with difficult detection
conditions
– Where early intervention is essential due to a high concentration value
– Where equipment must always be operational
– Where highly-sensitive detection is required (e.g. in areas where, due to built-in filter
elements, the air contains a low concentration of smoke particles)
– Where high air-exchange rates prevail.
2.3 System Overview
The smoke aspiration systems comprise an aspirating detector and pipe system.
The aspirating smoke detector comprises the detector module for detecting the smoke
aerosols, the aspiration unit for transporting the air samples to the detector module and the
airflow sensor for monitoring the pipe system for breakage and obstructions.
The pipe system comprises essentially pipe and fittings. The standard pipe system is made
from PVC or ABS. The pipes used for equipment monitoring should be halogen-free.
Each air sampling opening in the pipe system represents a point detector in the planning.
Figure 2.3 Principle of equipment monitoring with FAS-420 series
aspirating smoke detectors
1 Clicking
1
FAS / FCS
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To guarantee reliable operation even under the most difficult conditions (clean rooms,
recycling area), there are numerous accessories available, such as air filters, water separators
and detonation safety barriers.
2.4 Functions
Air samples are taken from the area to be monitored using the aspiration unit. They are fed via
a pipe system with defined air sampling openings to the sensitive detector module (see
Figure 2.4).
Detector module
Depending on the response sensitivity of the detector module in use and programmed alarm
threshold, the FAS-420 series aspirating smoke detector triggers the alarm when the
corresponding light obscuration threshold is reached. With the FAS-420-TP1 and the FAS-420-
TP2, the alarm is displayed via the alarm LED and/or two alarm LEDs on the unit and
transmitted to a connected fire panel. The FAS-420-TT1 and FAS-420-TT2 versions offer
differentiated LED displays for info, pre and main alarm. Pre and main alarms are transmitted
to the fire panel (with FPA-5000 Rel 2.1; additionally with info alarm from Rel 2.5 or above).
Various delay times can be programmed for the alarm thresholds, as well as for displaying and
transferring malfunctions (see Section 4.3 Settings on the Unit Motherboard, page 67). Alarm
messages are saved and are reset after the cause has been eliminated.
LOGIC · SENS
The LOGIC · SENS intelligent signal processing compares the measured smoke level with
known disturbance variables and decides between alarm and deception. LOGIC · SENS can
be activated and/or deactivated using the RPS programming software.
Detector module monitoring
Each detector module is monitored for contamination, signal malfunction and removal. Soiling
of the detector module has no effect on its sensitivity. With all variants, any malfunction is
displayed via the malfunction LED and transferred to the fire panel. Malfunctions caused by
brief environmental fluctuations can be eliminated with a time-delayed setting.
Airflow monitoring
An airflow sensor checks the connected pipe system for breakage and obstruction. The
airflow sensor can – depending on the configuration of the pipe system (see
Section 3.2 Principles of Pipe Planning, page 33) – detect at least a 50% obstruction to a
complete obstruction of the air sampling openings and a breakage in the pipe system that
results in a 50% loss from the air sampling openings. Should the fan fail, the airflow in the
pipe system is interrupted and this causes a blockage message. Airflow monitoring is
temperature-compensated and can be set depending on the air pressure.
Figure 2.4 Overview of the aspirating smoke detector
A Pipe system
FAS-42
0
Aspirating smoke
detector
1 Smoke aspiration pipe
2 Air intake
3 Air sampling openings
4 Detector module
including airflow
monitoring
5Housing
6 Aspiration unit
7Air outlet
2
7
6
5
3
1
A
4
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On expiry of a defined delay, the malfunction is displayed on the aspirating smoke detector
and the message is transmitted to the fire panel. The monitoring window thresholds can be
modified to suit the environmental conditions (see Section 3.3 Airflow Monitoring, page 36).
The principal signal curve of the airflow sensor is indicated in Figure 2.5.
Fault Indication
An imminent detector module or airflow malfunction generates a malfunction message that is
displayed on the FAS-420.
Flash code for malfunction detection
Malfunctions and certain device statues are displayed using various LED flash codes on the
detector module's electronics PCB. Thus it is possible to differentiate quickly among
malfunctions that can be caused by a defective detector module, an obstruction, or a break in
the pipe system.
Resetting via fire panel
A malfunction message is reset via the connected fire panel. Alarm and malfunction messages
are displayed simultaneously on the unit via the Local SecurityNetwork LSN using the reset
function on the detector line.
Calibrating the airflow sensor
Automatic airflow sensor calibration makes it significantly easier to start the FAS-420. The
initialization phase is carried out according to or independently of the air pressure as desired.
To set the FAS-420 to the airflow typical for the pipe network, an airflow initialization (flow-
init) procedure is carried out. This must be done for each unit once at the start after
installation, each time the pipe system is replanned/redesigned and after changing the fan
voltage. This enables the unit to determine and save the airflow typical for the pipe network.
Pipe system
A pipe system with an overall length of up to 300 m can be connected to FAS-420 series
aspirating smoke detectors over a maximum of 32 aspiration points. Two pipe systems can be
connected to both the FAS-420-TP2 and FAS-420-TT2 variants. The entire pipe system then
has a total length of 2 x 280 m and a maximum number of 2 x 32 aspiration points.
Figure 2.5 Example of the signal process of the airflow sensor in
case of malfunctions
S Airflow sensor signal
tTime
1 Normal airflow
2 Airflow too weak
3 Airflow too strong
4 Breakage
5 Obstruction
6 Monitoring window
7Delay
8 Malfunction message
S
t
4
7
8
6
1
2
5
3
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2.5 FAS-420 Series Aspirating Smoke Detectors and Accessories
2.5.1 Overview
FAS-420 series aspirating smoke detectors comprise the following components:
– Plastic housing
– Plastic connection pieces
– Integrated air-return pipe
– Connection for pipe with 25 mm external diameter
– Aspiration unit with optimized air supply
– Motherboard with interface for diagnostics system, LSN connections, connection for
shield wire, as well as DIP switch for address setting
– Supplementary package with cable bushings (1 x M20, 2 x M25)
– FAS-420-TP1/FAS-420-TP1: optical displays for alarm, malfunction and operation
– FAS-420-TT1/FAS-420-TT2: smoke level display(s), optical displays for info, pre and main
alarm, malfunction and operation
– 1 detector module (for FAS-420-TP1 and FAS-420-TT1) and/or 2 detector modules (for
FAS-420-TP2 and FAS-420-TT2).
Information on other accessories for special applications can be found in
–Section 2.5.5 FAS-ASD-DIAG Diagnostic Software
–Section 2.5.6 Remote Indicators
–Section 2.5.7 Device Mounting
–Section 2.6.3 Ceiling Lead-through
–Section 2.6.5 Water Separator for Humid Areas
–Section 2.6.6 Detonation Safety Barrier for Potentially Explosive Areas.
Figure 2.6 Overview of FAS-420 series aspirating
smoke detectors and accessories
1 Pipe system(s)
2 Connections to fire panel/power supply
3Air-return pipe
A Vibration absorber (sold separately)
B MT-1 unit mounting
C Detector module
D DIAG Diagnostic Software with connection
cable
E Cable bushings (1xM20, 2xM25)
F Test pipe
G Test adapter
2
A
3
C
EG
F
1
B
D
FAS / FCS
NOTICE!
Only type DM-TT-50(80), DM-TT-10(25) and DM-TT-01(05) detector modules with VdS
certification can be used in the standard units from the FAS-420 series. The detector modules
must be ordered separately.
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2.5.2 FAS-420 Connections
Figure 2.7 FAS-420 connections (see table on next page for explanations)
2.5.3 FAS-420-TP1/FAS-420-TP2 Displays
Figure 2.8 FAS-420-TP1 / FAS-420-TP2 displays
1
23
1
4
5
FAS-420 series
FAS-420 series
FAS / FCS
Position in
Figure 2.7
Function Explanation
FAS-420 series 1 Cable bushing for connection of fire panel
and additional power supply (input/output)
1 x M 20, for cable diameters of
8-12mm
2 Pipe system 1 connection For Ø 25 mm pipe system
3 Pipe system 2 connection
(for FAS-420-TP2 and FAS-420-TT2 only)
For Ø 25 mm pipe system
4 Connection for air-return pipe
5 Cable bushing for connection of fire panel
and additional power supply (input/output)
2 x M 25 for cable diameters of
9 - 14 mm (expandable to 14 -
18 mm)
FAS-420-TP1 / FCS-320-TP1
FAS-420-TP2 / FCS-320-TP2
1
2
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2.5.4 FAS-420-TT1/FAS-420-TT2 Displays
Figure 2.9 FAS-420-TT1 / FAS-420-TT2 displays
FAS-420-TP Display LED Explanation
Operation Green Operation display
Alarm 1Red Alarm indication
Fault Yellow Fault
– in the pipe system
– of a detector module
–caused by fan failure
1 Two alarm displays on the FAS-420-TP2
i
1
2
3
4
5
6
7
8
9
10
FAS-420-TT1 / FCS-320-TT1
FAS-420-TT2 / FCS-320-TT2
i1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10
12
FAS-420-TT Display LED 1Explanation
Operation Green Operation display
Fault Yellow Fault
– in the pipe system
– of a detector module
– caused by fan failure
Main alarm Red 100% smoke level
Pre-alarm 1Red 66% smoke level
Info alarm 1Red 33% smoke level
Smoke level display 1 to 10 110 yellow LEDs Current smoke level
1 All displays doubled on the FAS-420-TT2
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2.5.5 FAS-ASD-DIAG Diagnostic Software
The diagnostic software enables the saved and the current unit status, as well as the error
messages to be displayed on the PC or laptop.
The supplied diagnostics cable connects the aspirating smoke detector ("DIAG" connection on
the motherboard) to the PC. The FAS-ASD-DIAG version is connected to the PC via a USB
port, earlier DIAG versions use a COM port (see Figure 2.10).
Windows 2000 or Windows XP can be used as the operating system (earlier diagnostic
software versions (with serial interface) run under WINDOWS 95, 98, ME, 2000 and NT). For
correct color display, the monitor and graphics card must be able to display more than 256
colors.
Figure 2.10 Diagnostic software for reading out device states
Diagnostic messages remain saved in the diagnostic software for at least 3 days in order to be
able to evaluate even short, sporadically occurring errors (e.g. in case of changed operating
conditions).
Resetting the device via the diagnostic software deletes all saved diagnostic messages.
The software also allows the deletion of error messages.
2.5.6 Remote Indicators
A remote indicator must be connected if the aspirating smoke detector is not directly visible
or has been mounted in false ceilings or floors.
The external detector alarm display must be mounted in an obvious place in halls or entrances
of the building section or areas concerned.
The display is connected to the unit motherboard via the "X6 ext. Display" (D-/D+/V-/V+). Only
digital remote indicators made by Wagner can be used for this connection; these are available
by separate order.
Alternatively, FNS-420-R LSN Strobes can be connected via LSN and configured via
FSP-5000-RPS.
DIAG
NOTICE!
The diagnostic software can be used to save all stored and current diagnostics data, as well as
the settings made via the RPS programming software as a file. To be able to compare the data
read out, save each file under a different file name.
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2.5.7 Device Mounting
The MT-1 unit mounting is used if a direct wall installation is not possible, e.g. installation on
racks.
2.5.8 Measures for Reducing Operating Noise
Vibration absorbers
The fans of the aspirating smoke detectors cause a noise level of approx. 45 dB(A). Mounting
the FAS-420 onto vibration absorbers can effectively reduce noise transmission through the
installation elements. This results in a reduction in the noise level from 1 to 2 dB(A).
Additional operating noises may be caused by vibrations on the pipe system, which are
generated by the air flowing through it. This can be remedied by inserting a corrugated hose
(approx. 15 cm long) between pipe system and aspirating smoke detector to create a flexible
transition (see Figure 2.12).
In noise-sensitive areas, the sound level can also be reduced by installing a piece of plastic
pipe approximately 100 mm long into the air outlet opening of the unit. This is done by
breaking out the pre-punched opening in the protective grille (e.g. using a small edge cutter).
All -SL variants are equipped with an extremely quiet fan that limits the noise level to
38 dB(A). Thanks to the additional sound damper, fan noise can be reduced to 34 dB(A); this
ensures that the detector is in accordance with DIN 4109 for living and sleeping areas.
Figure 2.11 Mounting for FAS-420 series Aspirating Smoke Detector
1 Horizontal installation
2 Vertical installation
12
FAS-420 series
FAS-420 series
Figure 2.12 Absorption of the operating noises caused by airflows
1 Smoke aspiration pipe
2 Flexible hose
3 Fitting
4 Vibration absorbers
1
1
2
3
4
FAS-420 series
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2.6 Pipe System Components
2.6.1 Overview
During planning/design, a distinction is drawn between area monitoring and equipment
monitoring. For both applications, PVC and halogen-free pipes can be used , but the
restrictions of EN 54-20 must be observed. Halogen-free pipes should be used when
monitoring equipment.
Figure 2.13 shows essential accessory components that can be selected for the application
concerned.
The pipe system must be constructed using pipes with an external diameter of 25 mm and the
associated fittings.
If the maximum permissible pipe lengths are used, then for the pipe returns, pipes with an
exterior diameter of 40 mm and the appropriate fittings must be used (see also
Section 3.9 Planning for Long Pipe Feed Lines, page 58).
Blowing-out system
In areas that are susceptible to dust particles or icing, it may be necessary to blow out the
aspiration pipe system and its air sampling openings. Figure 2.14 shows a manual blowing-out
system with a three-way tap.
Figure 2.13 Pipe system components
A Pipe system connection
B Smoke aspiration pipe
1 Connection for test
adapter
2 T-fitting
3Air filter
4 Water separator
5 Detonation safety barrier
6 90° pipe bend
7 Aspiration hose for ceiling
lead-through
8 Ceiling lead-through
9Fitting
10 Double threaded joint
11 90° pipe elbow
12 45° pipe elbow
13 40/25 mm aspiration
reduction
14 End cap
Figure 2.14 Manual blowing-out system components
A Blast air supply connection
B Pipe system connection
1 Three-way tap
2 25 mm aspiration pipe
A
A
A
45
3
2
7
6
8
9
10
11
12
13
1
14
A
B
FAS-420 series
A
1
2
B
FAS-420 series
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2.6.2 Air sampling openings
Aspiration reducing film sheets
An air sampling opening is a 10 mm bore in the aspiration pipe that is covered with a patented
aspiration reducing film sheet with the required opening diameter. The size of the opening
depends on the construction of the pipe system (see Section 3 Planning, page 32).
The aspiration reducing film sheet is secured with marking tape to prevent it from becoming
displaced. The marking tape is a transparent sticky film with red edges and a 10 mm hole. It is
placed over the aspiration reducing film sheet so that the air sampling opening is not
concealed and can be seen from long distances.
Aspiration reducing clips
In areas susceptible to obstructions or icing, special, patented ASD aspiration clips with
flexible aspiration reductions are used (see Figure 2.16).
During use in deep-freeze areas, the flexible aspiration reduction expands in the air sampling
openings and pushes the ice away during blowing out. The special plastic clip ensures that the
aspiration reduction remains at the defined location.
Figure 2.15 Air sampling opening with aspiration reducing film sheet
and marking tape
1 Smoke aspiration pipe
2 Air sampling opening with
aspiration reducing film
sheet
3 Marking tape for aspiration
reducing film sheet
4 Air sampling opening
5 Fire red (RAL 3000)
6Transparent
Figure 2.16 Aspiration reduction for soiled areas and deep-freeze
areas
1 Aspiration reduction for
deep-freeze facilities
2 ASD aspiration clip made
of plastic
1
3
36
2
4
4
45
2
1
2
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As the clips are more stable under pressure and the elastic rubber insert significantly
improves the cleaning effect, they are used for all plans and designs which require a blow-off
system due to environmental influences (e.g. increased exposure to dust).
The standard AF-x aspiration reducing film sheets and the marking tapes are not suitable for
use in low-temperature areas.
The aspiration reductions with plastic clips are available separately.
2.6.3 Ceiling Lead-through
A concealed pipe system for area monitoring can be realized by installing in a false ceiling.
This requires the use of ceiling lead-throughs in the false ceiling. The ceiling lead-through can
be used with a false ceiling thickness of up to approx. 35 mm.
According to the planning and design guidelines, the ceiling lead-throughs are fitted with
aspiration reducing film sheets with defined air sampling openings and connected to the pipe
system by means of aspiration hoses (see Figure 2.17).
If these hoses exceed a maximum of 1 m in length, the plan according to Section 3 Planning
applies. If structural circumstances dictate that lengths in excess of 1 m are used, the pipe
system has to be calculated accordingly.
Figure 2.17 Ceiling lead-throughs
1Ceiling
2 T-fitting
3 Pipe system
4 Complete ceiling lead-
through
5 Aspiration hose for
ceiling lead-through
6 False ceiling
7 Knurled nut
8 Aspiration reducing film
sheet
9 Aspiration
1
23
4
6
7
89
5
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2.6.4 Air-Return Pipe for Pressure Areas and Atmospheric Loads
If the aspirating smoke detectors and the pipe system are installed in areas with varying air
pressure, the aspirated air must be returned to the pressure area of the pipe system (see
Figure 2.18). The air-return pipe can serve to equalize pressure or to prevent atmospheric
loads (e.g. odors) in neighboring spaces.
The air-return pipe is connected to the air exhaust duct inside the FAS-420 through the
ventilation grille (see Figure 2.19). This requires the pre-punched opening in the protective
grille to be broken out.
Figure 2.18 Principle of air return
P1/P2 Pressure areas 1 and 2
1Detector module
2 Airflow sensor
3 Aspiration unit
4Air-return pipe
5 Pipe system
Figure 2.19 FAS-420 with air-return pipe
1 Smoke aspiration pipe
2Air-return pipe
P1 P2
5
1
FAS / FCS
2
3
4
1
2
FAS-420 series
CAUTION!
The air-return pipe of the smoke aspiration system should not exceed 2 m. Longer returns
must be checked individually.
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2.6.5 Water Separator for Humid Areas
If the smoke aspiration system is operated in environments where condensate can form in the
aspiration system, a water separator is used. Condensate can form with sharp temperature
fluctuations and in areas where fresh air is monitored.
The FAS-ASD-WS Water Separator is integrated at the lowest point in the pipe system
upstream of the air filter and the aspirating smoke detector. The 45° pipe elbow permits
optimum distance from the wall (see Figure 2.20).
The FAS-ASD-WS Water Separator can be operated in a temperature range from 0 °C to
+50 °C. The sintered metal filter in the water separator has a pore width of 50 µm and causes
an additional rough absorption of soil particles.
The FAS-ASD-WS is supplied with an angle support and PG cable glands. The 45° pipe elbows
(4 units) must be ordered separately.
Figure 2.20 FAS-ASD-WS Water Separator for condensing water
vapor and collecting condensate from the pipe system
1 Water separator
2 Pipe system connection
3 45° pipe elbow
1
23
3
FAS-420 series
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2.6.6 Detonation Safety Barrier for Potentially Explosive Areas
Vapor/air and/or gas/air mixture ignition in the aspirating smoke detector may result in pipe
explosion or detonation. This depends on the composition, concentration, temperature, and
pressure of the flammable mixture.
The detonation safety barrier is a flame trap that is flame-proof in the face of pipe explosions
(deflagrations) and detonations (see Figure 2.21).
In normal operation, the steam and gas mixtures flow in any direction through the safety
barrier. An ignition of the mixture in the upstream aspirating smoke detector will cause the
developing detonation to be arrested. Ignition is prevented by the flame filter. Combustion of
the mixture in the flame filters may cause a rebound of the detonation front. To prevent this, a
minimum pipe length of 1.0 m between the installation point of the detonation safety barrier
and a possible ignition source (aspirating smoke detector) must be maintained. Permanent
fire prevention is thus achieved indirectly.
Figure 2.21 Detonation safety barrier in the aspiration pipe system
and if necessary in the air-return pipe
1 Metal pipe
2 Detector module
3 Airflow sensor
4 Aspiration unit
5Air-return pipe
6 Pipe system
7 Detonation safety barrier
Ex
FAS / FCS
1
6
7
2
3
4
5
> 1 m
> 1 m
CAUTION!
The connecting pipe between the aspirating smoke detector and the detonation safety barrier
must be made of metal. During installation, care must be taken to ensure that the threaded
connections are bolted together gas-tight using synthesol or sealing tape.
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2.7 Scope of Delivery: Smoke Aspiration System
Basic devices and accessories
Pipe system components
Designation Product ID
FAS-420-TP2 Standard unit F.01U.029.255
FAS-420-TP2 Standard unit F.01U.029.256
FAS-420-TT1 Standard unit F.01U.029.252
FAS-420-TT2 Standard unit F.01U.029.253
FAS-420-TP2-SL Standard unit Silent F.01U.083.877
FAS-420-TP2-SL Standard unit Silent F.01U.083.876
FAS-420-TT1-SL Standard unit Silent F.01U.083.875
FAS-420-TT2-SL Standard unit Silent F.01U.083.874
DM-TT-50(80) Detector module 4.998.143.400
DM-TT-10(25) Detector module 4.998.143.401
DM-TT-01(05) Detector module 4.998.143.402
TITANUS MT-1 MT-1 device mounting for aspirating smoke detector 4.998.143.410
FAS-ASD-DIAG DIAG diagnostic software including connection cable, for
USB port
F.01U.033.505
RAS Test Pipe Test pipe 4.998.148.848
RAS Test Adapter Test adapter 4.998.148.849
Designation Product ID
FAS-ASD-PHF16 Polywell aspiration hose, flexible, black, halogen-free F.01U.029.719
FAS-ASD-TRPG16 Ring nut with PG16 internal thread, 5 per set F.01U.029.721
FAS-ASD-CSL Quick-lock coupling, straight, PG16 internal thread F.01U.029.720
FAS-ASD-3WT Three-way tap, incl. fittings, for 25 mm pipe system F.01U.029.718
FAS-ASD-F Flange for ventilation duct F.01U.029.722
FAS-ASD-AR Aspiration reduction, with 10 mm bore for attaching an
aspiration reducing film sheet, 10 per set
F.01U.029.724
FAS-ASD-CLT Ceiling lead-through, white, ABS, 10 per set F.01U.029.725
FAS-ASD-AHC Aspiration hose (PE) for ceiling lead-through F.01U.029.727
FAS-ASD-DSB Detonation safety barrier for 25 mm pipe system F.01U.029.716
FAS-ASD-WS Water separator with sintered metal filter and manual
drain valve, including mounting bracket and PG cable
glands for 25 mm pipe system
F.01U.029.717
FAS-ASD-FL Large air filter box, for 25 mm pipe system, inc. 1 filter set
and two PG29 screw connections
F.01U.029.714
FAS-ASD-RFL Replacement filter set for large air filter box F.01U.029.715
FAS-ASD-SL Sound damper for FAS aspirating smoke detector F.01U.090.252
NOTICE!
Four 45° pipe elbows are required to install the FAS-ASD-WS Water Separator.
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Air sampling opening components
Designation Product ID
Marking tape for aspiration reducing film sheet AF-BR, 10 units. 4.998.143.413
Aspiration reducing film sheet 2.0 mm AF-2.0, 10 units. 4.998.143.416
Aspiration reducing film sheet 2.5 mm AF-2.5, 10 units. 4.998.143.417
Aspiration reducing film sheet 3.0 mm AF-3.0, 10 units. 4.998.143.418
Aspiration reducing film sheet 3.2 mm AF-3.2, 10 units. 4.998.143.419
Aspiration reducing film sheet 3.4 mm AF-3.4, 10 units. 4.998.143.420
Aspiration reducing film sheet 3.6 mm AF-3.6, 10 units. 4.998.143.422
Aspiration reducing film sheet 3.8 mm AF-3.8, 10 units. 4.998.143.423
Aspiration reducing film sheet 4.0 mm AF-4.0, 10 units. 4.998.143.424
Aspiration reducing film sheet 4.2 mm AF-4.2, 10 units. 4.998.143.425
Aspiration reducing film sheet 4.4 mm AF-4.4, 10 units. 4.998.143.426
Aspiration reducing film sheet 4.6 mm AF-4.6, 10 units. 4.998.143.427
Aspiration reducing film sheet 5.0 mm AF-5.0, 10 units. 4.998.143.428
Aspiration reducing film sheet 5.2 mm AF-5.2, 10 units. 4.998.143.429
Aspiration reducing film sheet 5.6 mm AF-5.6, 10 units. 4.998.143.430
Aspiration reducing film sheet 6.0 mm AF-6.0, 10 units. 4.998.143.431
Aspiration reducing film sheet 6.8 mm AF-6.8, 10 units. 4.998.143.432
Aspiration reducing film sheet 7.0 mm AF-7.0, 10 units. 4.998.143.433
NOTICE!
Plastic clips for deep-freeze facilities and blowing-out systems are sold separately.
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2.8 Technical Specifications
2.8.1 FAS-420 Aspirating Smoke Detector series
Electrical
Mechanics
Environmental conditions
Special features
* The sensitivity value is based on measurements with standard test fires (old value in
brackets).
LSN power supply 15 V DC to 33 V DC
Auxiliary power supply 14 V DC to 30 V DC
LSN current consumption 6.25 mA
Current consumption from auxiliary power supply
(at 24 V)
FAS-420-TP1
FAS-420-TT1
FAS-420-TP2
FAS-420-TT2
– Starting current, fan voltage 6.9 V 300 mA 330 mA
– Starting current, fan voltage 9 V 300 mA 330 mA
– On standby, fan voltage 6.9 V 200 mA 230 mA
– On standby, fan voltage 9 V 260 mA 310 mA
– On alarm, fan voltage 6.9 V 230 mA 290 mA
– On alarm, fan voltage 9 V 290 mA 370 mA
Displays on the device
FAS-420-TP1/FAS-420-TP2
– Operation Green LED
– Fault Yellow LED
– Alarm 1 red LED/2 red LEDs
Displays on the device
FAS-420-TT1/FAS-420-TT2
– Operation Green LED
– Fault Yellow LEDs
– Level display 1 x / 2 x smoke level display, each
with 10 segments (1–10)
– Alarm 1 x 3 / 2 x 3 red LEDs for
info alarm, pre-alarm and main alarm
Conical duct connections for Ø 25 mm
– Aspiration pipe 1 pipe/2 pipes
– Air-return pipe 1 pipe
Cable bushings 5 x M 20 and 2 x M 25
Dimensions (H x W x D) 292 x 200 x 113 mm
Weight Approx. 1.5 kg
Housing material Plastic (ABS)
Housing color Papyrus white (RAL 9018)
Protection category as per EN 60529 IP 20
Permissible temperature range of aspirating smoke
detector
-20 °C to +60 °C
Permissible relative humidity (non-condensing) 10 to 95%
Sound power level
FAS-420-TP1/-TP2/-TT1/-TT2 45 dB(A)
Max. response sensitivity (max. light obscuration)
– DM-TT-50(80) Detector Module 0.5%/m (0.8%/m) *
– DM-TT-10(25) Detector Module 0.1%/m (0.25%/m) *
– DM-TT-01(05) Detector Module 0.015%/m (0.05%/m) *
Service life of the fan (12 V) 43,000 hrs at 24 °C
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2.8.2 FAS-420 Aspirating Smoke Detector series -SL Variants
Electrical
Mechanics
Environmental Conditions
Special features
LSN power supply 15 V DC to
33 V DC
Auxiliary power supply 14 V DC to
30 V DC
LSN current consumption 6.25 mA
Current consumption from auxiliary power supply
(at 24 V)
FAS-420
-TP1-SL -TP2-SL -TT1-SL -TT2-SL
– Starting current, fan voltage 6.5 V 190 mA 250 mA 300 mA 330 mA
– Starting current, fan voltage 6.9 V 190 mA 250 mA 300 mA 330 mA
– Starting current, fan voltage 9 V 190 mA 250 mA 300 mA 330 mA
– On standby, fan voltage 6.5 V 130 mA 170 mA 150 mA 190 mA
– On standby, fan voltage 6.9 V 140 mA 180 mA 160 mA 200 mA
– On standby, fan voltage 9 V 170 mA 210 mA 210 mA 250 mA
– On alarm, fan voltage 6.5 V 150 mA 180 mA 180 mA 220 mA
– On alarm, fan voltage 6.9 V 160 mA 200 mA 190 mA 230 mA
– On alarm, fan voltage 9 V 190 mA 230 mA 240 mA 280 mA
Displays on the device
FAS-420-TP1/FAS-420-TP2
– Power Green LED
– Fault yellow LED
– Alarm 1 red LED/2 red LEDs
Displays on the device
FAS-420-TT1/FAS-420-TT2
– Power Green LED
– Fault Yellow LEDs
– Level display 1 x / 2 x smoke level display, each
with 10 segments (1–10)
– Alarm 1 x 3 / 2 x 3 red LEDs for
info alarm, pre-alarm and main alarm
Conical duct connections for Ø 25 mm
– Aspiration pipe 1 pipe/2 pipes
– Air-return Pipe 1 pipe
Cable Bushings 5 x M 20 and 2 x M 25
Dimensions (W x H x D) 292 x 200 x 113 mm
Weight Approx. 1.5 kg
Housing material Plastic (ABS)
Housing color Papyrus white (RAL 9018)
Protection category according to EN 60529 IP 20
Permissible temperature range of aspirating smoke
detector
-20 °C to +60 °C
Permissible relative humidity (non-condensing) 10 to 95%
sound power level
FAS-420-TP1/-TP2/-TT1/-TT2 -SL variants From 31 dB(A)
Max. response sensitivity (max. light obscuration)
– DM-TT-50(80) Detector Module 0.5%/m (0.8%/m) *
– DM-TT-10(25) Detector Module 0.1%/m (0.25%/m) *
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* The sensitivity value is based on measurements with standard test fires (old value in
brackets).
2.8.3 Pipe system
2.8.4 Smoke Aspiration System Components
Water separator (FAS-ASD-WS)
Filterbox, large (FAS-ASD-FL)
Replacement filter set, large (FAS-ASD-RFL)
Detonation safety barrier (FAS-ASD-DSB)
– DM-TT-01(05) Detector Module 0.015%/m (0.05%/m) *
Life cycle of the fan (12 V) 43,000 hrs at 24 °C
FAS-420-TP1
FAS-420-TT1
FAS-420-TP2
FAS-420-TT2
Maximum pipe length 300 m 2 x 280 m
Maximum number of air sampling openings 32 2 x 32
Maximum size of monitoring area 2880 m25760 m2
Permissible temperature range
– PVC pipe system 0 °C to +60 °C
– ABS pipe system -40 °C to +80 °C
Features For use in areas with very high humidity
Plastic housing with manual drain valve
Sintered metal filter
PG gable glands for 25 mm pipe system
Incl. assembly bracket
Dimensions (H x W x D) 210 x 170 x 90 mm
Weight Approx. 1.4 kg
Features For use in areas with increased exposure to dust
Incl. filter set and two PG29 cable glands
Housing material ABS plastic
Housing color Light gray RAL 7035
Dimensions (H x W x D) 194 x 122 x 96 mm
Application temperature
range
-30°C to +70°C
Features Set comprising one fine, one medium and one coarse filter
insert
(60 ppi, 45 ppi and 25 ppi)
Application temperature
range
-30°C to +70°C
Type PROTEGO Type EG IIA
Explosion group II A
Flame filter 3-way
Gap width 0.7 mm
Pipe connection thread G 3/4 inch, incl. transition thread on one side for connecting
to the aspiration pipe system
Length x diameter 112 mm x 80 mm
Certification EC type-tested
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Three way tap (FAS-ASD-3WT)
Ceiling lead-through (FAS-ASD-CLT) with aspiration hose (FAS-ASD-AHC)
Features With 3 transition threads for connection to a 25 mm pipe
system
Operating pressure Max. 10 bar
Housing material PVC plastic
Seal Teflon (PTFE)
Length 131 mm
Application temperature
range
0 °C to +50 °C
Maximum false ceiling
thickness
35 mm
Max. length of aspiration hose
per ceiling lead-through
1m
Ceiling lead-through fitting
material
ABS
Aspiration hose material PE
Color of aspiration hose and
ceiling lead-through
White
Application temperature
range
-40 °C to +80 °C
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3 Planning
Basic information on the relevant topics can be found in
–Section 3.1 Regulations, page 32
–Section 3.2 Principles of Pipe Planning, page 33
–Section 3.3 Airflow Monitoring, page 36
–Section 3.4 Defining the Response Sensitivity, page 37
–Section 3.5 Planning Limits, page 38.
The following sections describe plans with standard requirements for airflow monitoring:
–Section 3.6 Standard Pipe Planning, page 39
–Section 3.9 Planning for Long Pipe Feed Lines, page 56
–Section 3.8 Simplified Pipe Planning, page 52
The pipe plan for more sensitive airflow monitoring is described in
–Section 3.7 Pipe Planning for Single-Hole Monitoring, page 46.
The plan for monitoring air-conditioning ducts is described in
–Section 3.11 Planning for Forced Airflow, page 58.
The principles for measuring power supply and pipe length are contained in
–Section 3.12 Power Supply, page 62.
3.1 Regulations
The planning regulation below is based on the system limits of FAS-420. The applicable
national regulations of the countries concerned must be observed and the plans modified
accordingly.
The planning for the aspirating smoke detector in accordance with EN 54-20 is described
below. The basic conditions are specified in Section 3.1 Regulations. Planning must be carried
out in accordance with Section 3.6 Standard Pipe Planning. In addition to 3.6 , special
applications are also bound by the restrictions of the planning notes in accordance with
Section 3.7 Pipe Planning for Single-Hole Monitoring and the following sections. These must be
taken into account from the start in the case of any special planning processes.
Planning options in accordance with EN 54-20:
Various technical solutions are available to suit different planning criteria. The following table
lists the chapters in which the solutions are described.
With regard to the planning regulation below, the applicable national regulations of the
countries concerned must be observed and the plans modified accordingly.
EN 54-20
For VdS systems, compliance is also required with the following guidelines:
Planning criteria Technical solution Principles Restriction
Area monitoring in
general
Basic planning Section 3.6
Detection of failure of a
single opening
Single-hole monitoring
planning
Section 3.6 Section 3.7
Equipment protection/
cabinet monitoring
Simplified pipe planning Section 3.6 Section 3.8
Long supply lines Planning with long supply
lines
Section 3.6 Section 3.9
Reducing transport time Planning with acceleration
openings
Section 3.6 Section 3.10
Ventilation ducts Planning for forced airflow Section 3.6 Section 3.11
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– "Guideline for automatic fire detection systems, planning and installation", VdS
Schadenverhütung GmbH, Cologne (VdS 2095)
– The guideline "Installation protection for electrical and electronic systems" VdS
Schadenverhütung GmbH, Cologne (VdS 2304)
– The "Planning Aspirating Fire Detectors" data sheet from VdS Schadenverhütung GmbH,
Cologne (VdS 3435)
The applicable national regulations must also be observed, for example in Germany:
– DIN VDE 0833 parts 1 and 2 "Alarm systems for fire, intrusion and hold-up"
– Additional provisions for the installation of fire detection systems, which are published
by fire directors of fire departments, by the construction supervision authorities or by the
construction law authorities that have only local validity.
3.2 Principles of Pipe Planning
The aspiration pipe network must be designed such that all possible fires in the monitoring
area can be dealt with at an early stage.
The number of air sampling openings and the structure of the pipe system depend on the size
and geometry of the monitoring range. The pipe system must be laid out according to the
planning guidelines in this chapter, taking into account the following issues:
Symmetrical structure
The pipe system should preferably have a symmetrical structure, i.e.
– Same number of air sampling openings per pipe branch
– Same pipe branch lengths (should not exceed ± 20% deviation)
– Same distance between neighboring air sampling openings on the smoke aspiration pipe
(should not exceed ± 20% deviation).
Asymmetrical structure
If structural circumstances dictate that the pipe system is to be designed asymmetrically (see
Figure 3.1), the following conditions apply:
– The number of air sampling openings and the length of the shortest and longest pipe
branch within the pipe system must not exceed a quantity ratio of 1:2.
– The distance between neighboring air sampling openings on the smoke aspiration pipe
must be equal (should not exceed ± 20% deviation).
– The diameters of the air sampling openings are determined separately for each pipe
branch. The diameters depend on the total number of air sampling openings in the pipe
branch in question.
Figure 3.1 shows a typical U-pipe system with three or six air sampling openings and the air
sampling opening diameters calculated according to Section 3.6 Standard Pipe Planning.
NOTICE!
– For planning, the system limits in accordance with Section 3.5 Planning Limits are to be
observed.
– Select airflow monitoring and the associated planning limits (see Section 3.3 Airflow
Monitoring) and check these for any restrictions imposed by country-specific regulations.
– If the on-site planning deviates from the standard plans described below, this must
always be checked with activation attempts for correct detection of a malfunction and a
fire. A special plan may be required.
– Plans not contained in the operation guide must be requested.
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Pipe diameter
As a rule, the pipe system is created using pipes with a 25 mm diameter. Both PVC pipes and
halogen-free pipes can be used, however, ensure that you comply with the restrictions of
EN 54-20. Halogen-free pipes are to be used in preference for equipment monitoring.
In many applications, greater distances between the aspirating smoke detector and the
aspiration pipe must be bridged. This is done using pipes with greater diameters (40 mm),
which guarantees maximum planning (see also Section 3.9 Planning for Long Pipe Feed Lines,
page 56). However, pipes with greater diameters restrict the length of the pipe system.
Longer pipe feed lines
Branch length
To achieve short transport times for the smoke aerosols in the aspiration pipe and thus quick
detection, it is better to plan several short branches than fewer long ones (preferably U and
double U-pipe system).
Pipe configurations
Depending on the area geometry, five pipe configurations can be selected (see Figure 3.2):
–I-pipe: pipe system without branches.
–U-pipe: pipe system that branches into two pipe branches.
–M-pipe: pipe system that branches into three pipe branches.
–Double U-pipe: pipe system that branches symmetrically into four pipe branches.
–Quadruple U-pipe: pipe system that branches symmetrically into eight pipe branches.
Figure 3.1 Example of a symmetrical and an asymmetrical U-pipe sys-
tem
A Symmetrical pipe system
B Asymmetrical pipe
system
A
B
FAS / FCS
2,5
3,4 3,6 3,8
3,02,5 2,5 3,23,0
2,5 3,02,5 2,5 3,23,0
2,5 3,02,5 2,5 3,23,0
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Change of direction
Elbows and bends in the pipe system increase flow resistance. Therefore, they should only be
used where they cannot be avoided for structural engineering reasons.
If elbows or bends are used, the maximum total length of the pipe system is reduced.
Special cases
If the pipe system does not correspond to the planning guidelines described here owing to
structural circumstances, it must be calculated separately for the case in question on request.
Testing
For critical applications, test the secure detection with activation attempts. Check also
whether there is airflow at the individual air sampling openings.
Dual-detector dependency
Figure 3.2 Pipe configurations
I I-pipe system
U U-pipe system
M M-pipe system
U/U Double U-pipe system
4U Quadruple U-pipe
system
Corresponds to a straight pipe length of
Pipe elbow 1.5 m
Pipe bend 0.3 m
I
FAS / FCS
FAS / FCS
FAS / FCS
U
U/U
FAS / FCS
M
FAS / FCS
4U
NOTICE!
It is preferable to use pipe bends rather than pipe elbows.
The detection time will be influenced significantly by too high a number of changes of
direction.
NOTICE!
In order to increase transport speed in critical application areas, the fan voltage can be
increased from 6.9 V to 9 V.
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One aspiration line must be assigned per detector module. Both detector modules of a device
must be evaluated independently of one another. Only one extinguishing area per smoke
aspiration system may be monitored.
Two alarm stages
To implement two alarm stages, a pipe adapter for the aspiration pipe system is required. The
two detector modules in the aspirating smoke detector require different response
sensitivities.
3.3 Airflow Monitoring
EN 54-20 requires the detection of a 20-percent change in the airflow volume by the detector
module's airflow sensor. In order to achieve this, the activation threshold of the airflow sensor
must be set to level II. Alternatively, level I can also be used. It is recommended that airflow
calibration is carried out dependent on air pressure for both of these settings. In systems that
do not need to comply with EN 54-20, any threshold can be set. The smoke aspiration pipes
are planned taking into account the applicable national regulations for the country concerned.
Adapting the airflow sensitivity
The sensitivity of the airflow sensor must be adapted to the application. For example, a long
pipe system requires a sensitive setting of the airflow sensor. The activation threshold and
thus the sensitivity of the airflow sensor can be set on 4 levels. Breakages and obstructions
must be accurately detected in the event of a malfunction.
Figure 3.3 Pipe configurations for dual detector dependency
Figure 3.4 Pipe configurations for two alarm stages using the example of a U-pipe system
FAS / FCS
FAS / FCS
Setting the airflow sensitivity
Level Activation threshold Sensitivity
I Low (+/- 10% volume flow change) Very high
II Average (+/- 20% volume flow change) High
III High (+/- 30% volume flow change) Average
IV Very high (+/- 50% volume flow change) Low
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Dynamic airflow sensors
The airflow monitoring of the unit makes it possible to detect breaks at the end of pipes and
identify sudden obstruction of individual air sampling openings (e.g. following tampering with
the pipe system). Because these dynamic airflow sensors are only active if level I was selected
for the airflow monitoring, the points outlined under "Level I restrictions" must be taken into
consideration.
Restrictions
Airflow monitoring may only be set to level I if
– planning was carried out in accordance with "single-hole monitoring" (see Chapter 4.3.1
"Pipe Planning for Single-Hole Monitoring"),
– the airflow sensor was calibrated dependent on the air pressure (see Chapter 7.1.2
"Airflow Calibration according to Air Pressure")
– and no larger airflow fluctuations can occur.
Air pressure differences
There must be equal air pressure along the length of the aspiration pipe.
3.4 Defining the Response Sensitivity
The sensitivity of smoke aspiration systems can be divided into certain fire sensitivity classes
in accordance with EN 54-20. These fire sensitivity classes describe specific examples of ways
in which the systems can be applied. The permissible system plans given in Section 3.6 can be
determined for each classification.Smoke aspiration systems with a higher fire sensitivity
class according to EN 54-20 also satisfy the requirements of the lower classes.
Level I II III IV
Complies with EN 54-20
Activation threshold Small Average Large Very large
Sensitivity Very high High Average Low
NOTICE!
Selection of the largest possible, precisely still-approved level is recommended.
NOTICE!
If the aspirating smoke detectors and the pipe system are positioned in areas with different
air pressures, the air aspirated by the FAS-420 must be returned to the pressure area of the
pipe system (see Section 2.6.4 Air-Return Pipe for Pressure Areas and Atmospheric Loads,
page 24).
Class Description Application example
AAspirating smoke detector with
extremely high sensitivity
Very early detection: significant smoke
dilution through air conditioning in IT
areas
BAspirating smoke detector with
increased sensitivity
Early detection:
significant time gains thanks to very
early fire detection (without air
condition)
CSmoke aspiration system with normal
sensitivity
Normal detection:
fire detection with the advantages of
smoke aspiration systems
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The table shows the sensitivities you can choose from
The planning of the monitoring area always occurs according to the national guidelines for
point-type smoke detectors.
3.5 Planning Limits
The following limit values must always be observed for the FAS-420 series:
The maximum monitoring area of an air sampling opening corresponds to the monitoring area
of point-type detectors in accordance with the applicable planning guidelines.
The maximum total monitoring area, the maximum total pipe length and the maximum number
of air sampling openings depend on the selected planning. They are also dependent on the
restrictions imposed by national regulations.
Depending on the planning selected, some restricted values may apply.
The values for the maximum number of air sampling openings, the maximum pipe length and
the maximum overall monitoring areas apply for each pipe system. Two pipe systems can be
connected to aspirating smoke detectors FAS-420-TP2 and FAS-420-TT2, each with two
detector modules.
NOTICE!
Depending on the number of air sampling openings, fire sensitivity classes A, B and C can all
be achieved with the detector modules available.
Response sensitivity (main alarm)
DM-TT-50(80) Detector
Module
DM-TT-10(25) Detector
Module
DM-TT-01(05) Detector Module
Not permissible 0.8%/m (2%/m) light
obscuration
0.12%/m (0.4%/m) light
obscuration
Not permissible 0.4%/m (1%/m) light
obscuration (standard)
0.06%/m (0.2%/m) light
obscuration (standard)
1.0%/m (1.6%/m) light
obscuration
0.2%/m (0.5%/m) light
obscuration
0.03%/m (0.1%/m) light
obscuration
0.5%/m (0.8%/m) light
obscuration (standard)
0.1%/m (0.25%/m) light
obscuration
0.015%/m (0.05%/m) light
obscuration
NOTICE!
The sensitivity value is based on measurements with standard test fires
(old value in brackets).
Limiting values Maximum number of air sampling openings per detector
module
32
Maximum total pipe length 300 m
(2 x 280 m)
Minimum pipe length between 2 air sampling openings 4 m
Minimum pipe length between 2 air sampling openings 12 m
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3.6 Standard Pipe Planning
In order to plan in accordance with the EN 54-20 standard, certain factors must be known,
such as the system sensitivity requirements, the number of air sampling openings and the
accessories needed for the application concerned. These factors can be used to determine
the appropriate standard-compliant construction of the pipe system using the following
chapter and the planning table in the appendix.
3.6.1 Determining the Necessary Accessories
As accessory components, e.g. filters, have a particular effect on the dimensions of pipe
planning, the appropriate accessory must be selected for the application concerned in
advance. Retrofitting an accessory, e.g. a fine filter, is largely only possible if a sensitive
detector module is used or if a certain contingency is planned in advance.
The following components must be taken into account in this regard:
–Air filter
– Water separator
– Three-way-tap
– Detonation safety barrier
See Section 2.8.4
3.6.2 Pipe Planning with Pipe Accessories
For the purpose of pipe system planning, the following planning table is available for all
selected pipe accessories.
– Planning without air filter
– Planning with FAS-ASD-FL air filter
NOTICE!
In order to improve the detection quality of a smoke aspiration system, an area can be
monitored with more detection points than required by national guidelines. However, to
calculate the necessary sensitivity of an aspirating smoke detector, the number of aspiration
points required by the standard must be used.
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Procedure
In the following example, a plan without air filter with 8 openings should satisfy class B if a
water separator is also used. The red shaded areas show the potential plans with different
pipe shapes and fan voltage.
You will find the planning tables in question in Section 8.3 Planning without filter, page 105 and
Section 8.4 Planning with air filter, page 107.
General Example
1. Selection:
Select the planning table with or without air filter, as
applicable.
Result:
Planning table and specified air filter
Select the planning table without air filter,
Section Planning without filter, page 41
2. Selection:
Select the number of air sampling openings from the
planning table. Note the possible sensitivity classes.
Result:
Specified detector module with specified setting
and alarm threshold
In the Section Planning without filter table, select the
column with eight air sampling openings (Number of
air sampling openings, 8)
3. Selection:
Select the sensitivity (sensitivity class) of the system
according to the gradation described in
Section 3.4 Defining the Response Sensitivity.
Result:
Specified sensitivity class in accordance with EN
54-20
In the Section Planning without filter, page 41 table,
select the response sensitivity you require (class A, B
or C) from the column highlighted in red. You must
select the class that corresponds to the installed
detector module and the configured sensitivity.
4. Selection:
Select other pipe components, such as a water
separator and detonation safety barrier.
Result:
Specified planning table
Select the Section With water separator, page 41 .
5. Selection:
Select the possible pipe length for the relevant pipe
shape and fan voltage.
Result:
Specified planning in accordance with EN 54-20 for
the previously specified parameters
In the Section With water separator, page 41 table,
select the pipe shape and fan voltage you require, and
note the permissible total pipe length.
Abbreviation Meaning CTN
DM Detector module DM-01(05) DM-TT-01(05)
DM-10(25) DM-TT-10(25)
DM-50(80) DM-TT-50(80)
S Sensitivity (% LT/m)
MA Main alarm
PA Pre-alarm
l [m] Permissible total pipe length in meters
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Planning without filter
Without any other pipe accessories
With water separator
With detonation safety barrier
Number of air sampling openings
DM- S 12345678 9 10 11 12 … 32
01
(05)
0.015
(0.05)
MAAAAAAAAA AAAA A
0.03 (0.1) MA A A A A A A A AAAAA B
0.06 (0.2) MA A A A A A A A AAAAA C
0.12 (0.4) MA A A A A A A B BBBBB
10
(25)
0.1 (0.25) MA A A A A A A A AABBB B
0.2 (0.5) MA A A A A B B B BBBBB
0.4 (1) MA A A B B B B C CCCCC
0.8 (2) MA A B B C C C
50
(80)
0.313 (0.5) PA A A A A B B B BBBBB C
0.5 (0.8)MAAAABBBBCCCCC
0.687 (1.1) PA A A B B B C C CCC
1.0 (1.6)MAABBCCCC
Number of air sampling openings
Pipe shape UFans 123456789101112…32
I 6.9 77 77 77 77 77 77 77 77 76 l [m]
≥9 100 100 100 100 100 100 100 100 100 100 100 100
U 6.9 120 120 120 120 120 120 120 120 120 120 120 120
≥9 150 150 150 150 150 150 150 150 150 150 150 150
M 6.9 170 170 170 170 170 170 170 170 170 170 170 170
≥9 180 180 180 180 180 180 180 180 180 180 180 180
2 x U 6.9 180 180 180 180 180 180 180 180 180 180 180 180
≥9 200 200 200 200 200 200 200 200 200 200 200 200
4 x U
(1 DM)
6.9
≥9 300 300 300 300 300 300 300 300 300 300 300 300 300
Number of air sampling openings
Pipe shape UFans 123456789101112…32
I 6.9 60 60 60 60 60 60 60 l [m]
≥9 8080808080808080 80 80
U6.9 110 110 110 110 110 110 110 110 110 110 110 110
≥9 110 110 110 110 110 110 110 110 110 110 110 110
M 6.9 110 110 110 110 110 110 110 110 110 110 110 110
≥9 160 160 160 160 160 160 160 160 160 160 160 160
2 x U 6.9 140 140 140 140 140 140 140 140 140 140 140 140
≥9 160 160 160 160 160 160 160 160 160 160 160 160
Number of air sampling openings
Pipe shape UFans 123456789101112…32
I 6.9 46 46 46 46 38 l [m]
≥9 686868686868
U 6.9 60 60 60 60 60 60
≥9 6060606060606060
M 6.9 808080808080707070
≥9 120 120 120 120 120 120 120 120 120
2 x U 6.9 80 80 80 80 80 80 80 80
≥9 100 100 100 100 100 100 100 100
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Results
The following modules can be used with the relevant settings for class B or A:
– 0.015% LT/m (0.05% LT/m) module – with a sensitivity
of min. 0.12% LT/m (0.4% LT/m)
– 0.1% LT/m (0.25% LT/m) module – with a sensitivity
of min. 0.2% LT/m (0.5% LT/m)
– 0.5% LT/m (0.8% LT/m) module – with setting 0.5% LT/m (0.8% LT/m)
System parameters possible:
– I-pipe system
– 9 V fan voltage, max. 80 m total pipe length for U-pipe system
– U-pipe system
– 6.9 V fan voltage, max. 110 m total pipe length
– 9 V fan voltage, max. 110 m total pipe length
– M-pipe system
– 6.9 V fan voltage, max. 110 m total pipe length
– 9 V fan voltage, max. 160 m total pipe length
– Double U-pipe system
– 6.9 V fan voltage, max. 140 m total pipe length
– 9 V fan voltage, max. 160 m total pipe length
NOTICE!
The sensitivity value is based on measurements with standard test fires (old value in
brackets).
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I-pipe system for space protection
The diameters of the air sampling openings should be taken from the relevant table for each
pipe configuration:
a Punch diameter of the aspiration reducing film sheet
U-pipe system for space protection
1 pipe system
FAS-420-TP1
FAS-420-TT1
2 pipe systems
FAS-420-TP2
FAS-420-TT2
Figure 3.5 I-pipe system for space protection
FAS / FCS
ABCDE LMF
ABCDE LMF
I-pipe system Air sampling
opening
Number of air sampling openings
12345678910111213
∅ air sampling
opening
in mm a
A 7.0 6.0 5.2 4.6 4.2 3.8 3.6 3.4 3.0 3.0 2.5 2.5 2.5
B 6.8 5.2 4.6 4.2 3.8 3.6 3.4 3.0 3.0 2.5 2.5 2.5
C 5.6 4.6 4.4 4.0 3.8 3.4 3.2 3.0 3.0 3.0 2.5
D 5.0 4.4 4.0 3.8 3.4 3.4 3.0 3.0 3.0 2.5
E 4.4 4.2 3.8 3.6 3.6 3.4 3.0 3.0 3.0
F 4.2 3.8 3.8 3.6 3.4 3.4 3.0 3.0
G 4.0 3.8 3.6 3.6 3.4 3.2 3.0
H 4.0 3.8 3.6 3.4 3.2 3.0
I 3.8 3.6 3.6 3.2 3.2
J 3.8 3.8 3.2 3.2
K3.8 3.8 3.4
L4.0 3.8
M4.0
1 pipe system
FAS-420-TP1
FAS-420-TT1
2 pipe systems
FAS-420-TP2
FAS-420-TT2
Figure 3.6 U-pipe system for space protection
FAS / FCS
FAS / FCS
ABCDI J
ABCDIJ
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a Punch diameter of the aspiration reducing film sheet
M-pipe system for space protection
a Punch diameter of the aspiration reducing film sheet
U-pipe system Air sampling
opening
Number of air sampling openings
2 4 6 8 10 12 14 16 18 20
∅ air sampling
opening
in mm a
A 5.23.63.43.02.52.52.02.02.02.0
B 4.4 3.4 3.0 3.0 2.5 2.0 2.0 2.0 2.0
C 3.6 3.2 3.0 2.5 2.5 2.0 2.0 2.0
D 3.4 3.2 3.0 2.5 2.5 2.0 2.0
E 3.2 3.0 3.0 2.5 2.5 2.0
F 3.4 3.2 3.0 2.5 2.5
G 3.6 3.4 3.0 2.5
H 3.6 3.4 2.5
I3.6 3.6
J3.8
1 pipe system
FAS-420-TP1
FAS-420-TT1
2 pipe systems
FAS-420-TP2
FAS-420-TT2
Figure 3.7 M-pipe system for space protection
ABCDEF
ABCDEF
FAS / FCS
FAS / FCS
M-pipe system Air sampling opening Number of air sampling openings
3 6 9 12151821
∅ air sampling
opening in mm a
A 4.4 3.4 3.0 2.5 2.5 2.0 2.0
B 3.6 3.0 2.5 2.5 2.5 2.0
C 3.2 3.2 2.5 2.5 2.0
D 3.2 3.0 2.5 2.5
E 3.2 3.0 2.5
F3.23.2
G3.4
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Double U-pipe system for space protection
a Punch diameter of the aspiration reducing film sheet
Quadruple U-pipe system for space protection
1 pipe system
FAS-420-TP1
FAS-420-TT1
2 pipe systems
FAS-420-TP2
FAS-420-TT2
Figure 3.8 Double U-pipe system for space protection
Double U-pipe
system
Air sampling opening Number of air sampling openings
4 8 12 16 20 24
∅ air sampling
opening in mm a
A 4.0 3.0 2.5 2.0 2.0 2.0
B - 3.43.02.52.02.0
C - - 3.0 3.0 2.5 2.0
D ---3.22.52.5
E ----3.62.5
F -----3.6
1 pipe system
FAS-420-TP1
FAS-420-TT1
Figure 3.9 Quadruple U-pipe system for space protection
AB C D
FAS / FCS
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a Punch diameter of the aspiration reducing film sheet
3.7 Pipe Planning for Single-Hole Monitoring
Depending on the pipe configuration, the following system parameters are used to detect a
single air sampling opening or a particular number of obstructed air sampling openings.
Planning is to be carried out according to regulations specified in Section 3.6 Standard Pipe
Planning. Additionally, the following limiting values and opening diameters must be observed.
An additional accessory (air filter, condensate separator etc.) can have an effect on the
maximum pipe length.
I-pipe system - single-hole monitoring
a Punch diameter of the aspiration reducing film sheet
Quadruple U-pipe
system
Air sampling opening Number of air sampling openings
8 162432
∅ air sampling
opening in mm a
A 3.20 2.5 2.0 2.0
B-3.02.52.0
C--3.02.0
D ---2.5
1 pipe system
FAS-420-TP1
FAS-420-TT1
2 pipe systems
FAS-420-TP2
FAS-420-TT2
Figure 3.10 I-pipe system for space protection
FAS / FCS
ABCDE I JF
ABCDE I JF
Limiting values Min. distance FAS-420 – 1st air sampling opening 4 m
I-pipe system Max. distance FAS-420 – 1st air sampling opening 20 m
Max. distance: 1st air sampling opening – last air sampling opening
– With low fan voltage
– With high fan voltage
40 m
60 m
Max. overall pipe length (Ø 25 mm)
– With low fan voltage
– With high fan voltage
60 m
80 m
Min. distance between 2 air sampling openings 4 m
Max. distance between 2 air sampling openings 12 m
Max. number of air sampling openings (n) per pipe system 10
I-pipe system Air sampling
opening
Number of air sampling openings
2345678910
∅ air sampling
opening in mm a
A 6.0 5.0 4.2 3.8 3.2 3.0 2.5 2.5 2.0
B 6.8 5.2 4.4 3.8 3.2 3.0 2.5 2.5 2.0
C - 5.2 4.6 4.0 3.6 3.0 3.0 2.5 2.5
D - - 4.6 4.0 3.6 3.4 3.0 3.0 2.5
E - - - 4.4 4.0 3.4 3.4 3.0 3.0
F - - - - 4.0 3.8 3.4 3.4 3.0
G -----3.83.83.43.4
H ------3.83.83.4
I -------3.83.6
J --------3.6
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I pipe system activation thresholds
— not possible0 not practical
Example
If 3 of a total of 7 air sampling openings are found to be obstructed, the switch for setting the
airflow monitoring should be set to level III.
U-pipe system - single-hole monitoring
Activation
thresholds
Number of openings 2 345678 910
1 obstructed opening III III II I I ————
2 obstructed openings 0 0 III III II I I ——
3 obstructed openings 0 0 0 0 III III II I I
4 obstructed openings 0 00000III II I
5 obstructed openings 0 000000 0 II
… will be recognized by the setting level x
NOTICE!
When planning in accordance with EN 54-20, level I or II must always be set for airflow
monitoring.
1 pipe system
FAS-420-TP1
FAS-420-TT1
2 pipe systems
FAS-420-TP2
FAS-420-TT2
Figure 3.11 U-pipe system for space protection
FAS / FCS
FAS / FCS
ABCDEG
ABCDEG
Limiting values Min. distance FAS-420 – T-fitting 4 m
U-pipe system Max. distance FAS-420 – T-fitting 20 m
Max. branch length
– With low fan voltage
– With high fan voltage
40 m
50 m
Max. overall pipe length per pipe system (Ø 25 mm)
– With low fan voltage
– With high fan voltage
100 m
120 m
Min. distance between 2 air sampling openings 4 m
Max. distance between 2 air sampling openings 12 m
Max. number of air sampling openings (n) per pipe system 14
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a Punch diameter of the aspiration reducing film sheet
U-pipe system activation thresholds per pipe system
— not possible 0 not practical
Example
If 3 of a total of 10 air sampling openings are found to be obstructed, the switch for setting
the airflow monitoring should be set to level I.
U-pipe system Air sampling opening Number of air sampling openings
2 4 6 8 10 12 14
Ø air sampling
opening in mm a
A 5.2 3.6 3.4 3.2 2.5 2.5 2.0
B - 4.03.43.23.02.52.0
C - - 3.6 3.4 3.0 2.5 2.5
D - - - 3.4 3.2 3.0 2.5
E - - - - 3.2 3.0 3.0
F -----3.23.0
G ------3.2
Activation
thresholds
Number of openings 2 4 6 8 10 12 14
1 obstructed opening III II I ————
2 obstructed openings 0 III II I ———
3 obstructed openings 0 0 III II I ——
4 obstructed openings 0 0 0 III II I —
5 obstructed openings 0 0 0 0 III II I
6 obstructed openings 0 0 0 0 0 III II
… will be recognized by the setting level x
NOTICE!
When planning in accordance with EN 54-20, level I or II must always be set for airflow
monitoring.
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M-pipe system - single-hole monitoring
a Punch diameter of the aspiration reducing film sheet
1 pipe system
FAS-420-TP1
FAS-420-TT1
2 pipe systems
FAS-420-TP2
FAS-420-TT2
Figure 3.12 M-pipe system for space protection
d
d
ABCD
ABCD
FAS / FCS
FAS / FCS
Limiting values Min. distance FAS-420 – last T-fitting 4 m
Double U-pipe Max. distance FAS-420 – last T-fitting 20 m
Max. branch length
– With low fan voltage
– With high fan voltage
30 m
40 m
Max. overall pipe length per pipe system (Ø 25 mm)
– With low fan voltage
– With high fan voltage
110 m
140 m
Min. distance between 2 air sampling openings 4 m
Max. distance between 2 air sampling openings 12 m
Max. number of air sampling openings (n) per pipe system 12
M-pipe Air sampling opening Number of air sampling openings
36912
Ø air sampling
opening in mm a
A 4.4 3.4 3.0 2.5
B-3.63.02.5
C--3.23.2
D---3.2
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M-pipe system activation thresholds per pipe system
— not possible0 not practical
Example
If 3 of a total of 9 air sampling openings are found to be obstructed, the switch for setting the
airflow monitoring should be set to level I.
Double U-pipe system - single-hole monitoring
Activation
thresholds
Number of openings 3 6 9 12
1 obstructed opening III I ——
2 obstructed openings 0 II ——
3 obstructed openings 0 III I —
4 obstructed openings 0 0 II I
5 obstructed openings 0 0 0 II
6 obstructed openings 0 0 0 III
7 obstructed openings 0000
… will be recognized by the setting level x
NOTICE!
When planning in accordance with EN 54-20, level I or II must always be set for airflow
monitoring.
1 pipe system
FAS-420-TP1
FAS-420-TT1
2 pipe systems
FAS-420-TP2
FAS-420-TT2
Figure 3.13 Double U-pipe system for space protection
FAS / FCS
FAS / FCS
C
C
B
B
A
A
Limiting values Min. distance FAS-420 – last T-fitting 4 m
Double U-pipe Max. distance FAS-420 – last T-fitting 20 m
Max. branch length
– With low fan voltage
– With high fan voltage
20 m
30 m
Max. overall pipe length per pipe system (Ø 25 mm)
– With low fan voltage
– With high fan voltage
100 m
140 m
Min. distance between 2 air sampling openings 4 m
Max. distance between 2 air sampling openings 12 m
Max. number of air sampling openings (n) per pipe system 12
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a Punch diameter of the aspiration reducing film sheet
Double U-pipe system activation thresholds per pipe system
— not possible 0 not practical
Example
If 4 of a total of 12 air sampling openings are found to be blocked, the switch for setting the
airflow monitoring should be set to level II.
Double U-pipe Air sampling opening Number of air sampling openings
4812
Ø air sampling
opening in mm a
A 4.0 3.0 2.5
B-3.43.0
C--3.0
Activation
thresholds
Number of openings 4 8 12
1 obstructed opening I——
2 obstructed openings II I —
3 obstructed openings 0 II I
4 obstructed openings 0 III II
5 obstructed openings 0 0 III
6 obstructed openings 0 0 III
… will be recognized by the setting level x
NOTICE!
When planning in accordance with EN 54-20, level I or II must always be set for airflow
monitoring.
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3.8 Simplified Pipe Planning
Simplified planning is used for equipment protection and in premises with smaller
dimensions. The benefit of this type of planning is the standard diameters of the suction
openings.
Planning is to be carried out according to regulations specified in Section 3.6 Standard Pipe
Planning. Additionally, the following limiting values and opening diameters must be observed.
An additional accessory (air filter, condensate separator etc.) can have an effect on the
maximum pipe length.
I-pipe system - simplified planning
a Punch diameter of the aspiration reducing film sheet
1 pipe system
FAS-420-TP1
FAS-420-TT1
2 pipe systems
FAS-420-TP2
FAS-420-TT2
Figure 3.14 I-pipe system, e.g. for equipment protection
FAS / FCS
FAS / FCS
d
d
i 1
2
3
4
5
6
7
8
9
10
i
12
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10
Limiting values Min. distance FAS-420 – 1st air sampling opening 2 m
I-pipe system Max. distance FAS-420 – 1st air sampling opening 20 m
Max. distance: 1st air sampling opening – last air sampling opening 20 m
Max. overall pipe length (Ø 25 mm) 40 m
Min. distance between air sampling openings 0.1 m
Max. distance between air sampling openings 4 m
Max. number of air sampling openings (n) per pipe system 18
I-pipe system Number of air sampling openings
23456789101112131415161718
Ø of all air sampling openings in mm a6.0 5.0 4.4 4.0 3.6 3.4 3.2 3.0 3.0 3.0 3.0 2.5 2.5 2.5 2.5 2.5 2.5
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U-pipe system - simplified planning
a Punch diameter of the aspiration reducing film sheet
1 pipe system
FAS-420-TP1
FAS-420-TT1
2 pipe systems
FAS-420-TP2
FAS-420-TT2
Figure 3.15 U-pipe system, e.g. for equipment protection
FAS / FCS
FAS / FCS
d
d
i
12
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10
i
1
2
3
4
5
6
7
8
9
10
Limiting values Min. distance FAS-420 – T-fitting 2 m
U-pipe system Max. distance FAS-420 – T-fitting 20 m
Max. branch length 20 m
Max. overall pipe length (Ø 25 mm) 60 m
Min. distance between air sampling openings (d) 0.1 m
Max. distance between air sampling openings (d) 4 m
Max. number of air sampling openings (n) per pipe system 18
U-pipe system Number of air sampling openings
2 4 6 8 10 12 14 16 18
Ø of all air sampling openings in mm a6.0 4.4 3.6 3.2 3.0 3.0 2.5 2.5 2.5
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M-pipe system - simplified planning
a Punch diameter of the aspiration reducing film sheet
1 pipe system
FAS-420-TP1
FAS-420-TT1
2 pipe systems
FAS-420-TP2
FAS-420-TT2
Figure 3.16 M-pipe system, e.g. for space protection
d
d
A
BCD
A
BCD
FAS / FCS
FAS / FCS
Limiting values Min. distance FAS-420 – last T-fitting 2 m
Double U-pipe Max. distance FAS-420 – last T-fitting 20 m
Max. branch length 20 m
Max. overall pipe length (Ø 25 mm) 80 m
Min. distance between air sampling openings (d) 0.1 m
Max. distance between air sampling openings (d) 4 m
Max. number of air sampling openings (n) per pipe system 18
M-pipe Number of air sampling openings
3 6 9 121518
Ø of all air sampling openings in mm a5.03.63.03.02.52.5
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Double U-pipe system - simplified planning
a Punch diameter of the aspiration reducing film sheet
1 pipe system
FAS-420-TP1
FAS-420-TT1
2 pipe systems
FAS-420-TP2
FAS-420-TT2
Figure 3.17 Double U-pipe system, e.g. for equipment protection
FAS / FCS
FAS / FCS
d
d
TITANUS PRO ·SENS 2
®
1
2
i
1
2
3
4
5
6
7
8
9
10
i
12
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10
Limiting values Min. distance FAS-420 – last T-fitting 2 m
Double U-pipe Max. distance FAS-420 – last T-fitting 20 m
Max. branch length 20 m
Max. overall pipe length (Ø 25 mm) 100 m
Min. distance between air sampling openings (d) 0.1 m
Max. distance between air sampling openings (d) 4 m
Max. number of air sampling openings (n) per pipe system 20
Double U-pipe Number of air sampling openings
4 8 12 16 20
Ø of all air sampling openings in mm a4.03.43.02.52.0
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3.9 Planning for Long Pipe Feed Lines
Pipes with a 40 mm diameter are required for planning pipe feed line A (Figure 3.18). Area B is
designed with 25 mm pipes in accordance with Section 3.6 Standard Pipe Planning. The plan
applies for the pipe configurations described above.
The general pipe planning is restricted by the use of long pipe feed lines as follows:
– Pipes with a 40 mm diameter increase transport time.
– 1 m pipe with a 40 mm diameter replaces 3 m pipe with a 25 mm diameter.
A basic pipe can be installed for high-rise warehouse (Figure 3.19) planning, from which the
stub-shaped aspiration pipes are routed.
3.10 Planning with Acceleration Openings
Acceleration openings
In order to meet individual regulations, it may be necessary to increase the transport time of
the systems. This can be fulfilled by fitting the ends of the pipe branches with acceleration
openings, which increase transport speed. Depending on the regulations concerning
transport time, it may be necessary to dimension an acceleration opening with the same or
double the diameter of the last air sampling opening on a pipe branch. Only authorized aids
should be used to calculate the transport time.The additional airflow of the acceleration
openings also reduces the sensitivity of the air sampling openings. If required, this reduction
can be offset as follows:
NOTICE!
Only to be used when taking over inventory planning
Figure 3.18 Example of a pipe system with long pipe feed lines for area monitoring
Figure 3.19 Example of special planning for high-rise warehouse
AABBCCDDEE FF
A
i
12
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10
B
C
B
A
∅ 40 mm: ≤ 100 m
∅ 25 mm:
≤ 20 m
i
12
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10
FAS / FCS
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1. option: increasing the sensitivity
Reduced sensitivity at the air sampling openings can be offset by using a more sensitive
detection setting. A distinction must be made regarding whether the cross-section of an
acceleration opening is smaller or the same as:
– the cross-section of the last air sampling opening of a branch (Table 3.1)
– the doubled cross-section of the last air sampling opening of a branch (Table 3.2)
Table 3.1 Factors for increasing the sensitivity (acceleration opening corresponds to one air sampling open-
ing)
Table 3.2 Factors for increasing the sensitivity (acceleration opening corresponds to two air sampling open-
ings)
Example:
A class B double U-pipe system with 24 air sampling openings is planned. According to EN
54-20, 24 openings are permitted in class B at a sensitivity of 0.25% LT/m. In order to increase
the transport time, an acceleration opening the same size as the last air sampling opening is
to be used.According to Table 3.1, the necessary sensitivity of the detector module in this
case is
0.25 % LT/m * 0.85 = 0.1875 % LT/m.
2. option: reducing the number of air sampling openings
Reduced sensitivity at the air sampling openings can be offset by reducing the number of air
sampling openings. A distinction must be made regarding whether the cross-section of an
acceleration opening is smaller or the same as:
– the cross-section of the last air sampling opening of a branch (Table 3.3)
– the doubled cross-section of the last air sampling opening of a branch (Table 3.4)
Method of resolution Primarily used in
1 Increasing the sensitivity of the detector
module
Previously installed systems
2 Reducing the number of air sampling
openings
Systems currently being planned
Air sampling openings
Pipe shape123456789101112131415161820212432
I0.50 0.66 0.75 0.80 0.83 0.85 0.87 0.88 0.90 0.90 0.91 0.92 0.92
U0.50 0.66 0.75 0.80 0.83 0.85 0.87 0.88 0.90 0.90
M0.50 0.66 0.75 0.80 0.83 0.85 0.87
Double U 0.50 0.66 0.75 0.80 0.83 0.85
Quadruple U 0.50 0.66 0.75 0.80
Air sampling openings
Pipe shape 1 2 3 4 5 6 7 8 9 101112131415161820212432
I0.33 0.50 0.60 0.66 0.71 0.75 0.77 0.80 0.81 0.83 0.84 0.85 0.86
U0.33 0.50 0.60 0.66 0.71 0.75 0.77 0.80 0.81 0.83
M0.33 0.50 0.60 0.66 0.71 0.75 0.77
Double U 0.33 0.50 0.60 0.66 0.71 0.75
Quadruple U 0.33 0.50 0.60 0.66
Air sampling openings
Pipe shape 1 2 3 4 5 6 7 8 9 101112131415161820212432
I 123456789101112
U 2 4 6 8 1012141618
M 3 6 9 12 15 18
Double U 4 8 121620
Quadruple U 81624
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Table 3.3 Reducing the number of air sampling openings (acceleration opening corresponds to one air sam-
pling opening)
Table 3.4 Reducing the number of air sampling openings (acceleration opening corresponds to two air sam-
pling openings)
Example:
A class B double U-pipe system with 24 air sampling openings is planned. According to EN
54-20, 24 openings are permitted in class B at a sensitivity of 0.25% LT/m. In order to increase
the transport time, an acceleration opening twice the size as the last air sampling opening is
to be used. According to Table 3.4, 16 air sampling openings are permitted in this case at a
sensitivity of 0.25% LT/m.
3.11 Planning for Forced Airflow
Monitoring the air-conditioning ducts
Air-conditioning units are broken down into low and high-speed units (see table below). The
details provided in this chapter apply only to low-speed units. There are no adequate
empirical values available for high-speed units. Hence, smoke trials must be executed for air-
conditioning ducts with flow speeds above 10 m/s, in order to determine optimal response
behavior.
The speed distribution in an air-conditioning duct appears as follows:
Aspiration
To achieve optimal detection results, the pipe system should be organized into the areas v1
to v3
Installation location of the pipe system
Air sampling openings
Pipe shape 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 18 20 21 24 32
I 11234567891011
U 2 2 4 6 8 10 12 14 16
M 33691215
Double U 4 4 8 12 16
Quadruple U 8816
Low-speed units High-speed units
Flow speed Max. 10 m/s > 10 m/s
Duct cross-section Large Small
Differential pressure
along the direction of
flow.
Low Large
Figure 3.20 Speed distribution in an air-conditioning duct
1 Air-conditioning duct
v1 to
v4
Flow speed
1
v1
v1 > v2 > v3 > v4
v2
v3
v4
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The exhaust duct should be selected as the installation location of the pipe system, as far as
possible away from the sound dampers, air baffles and bends. The distance from such
“obstacles” should be at least three times the smallest duct diameter.
If it is absolutely essential to install the pipe system directly behind air baffles, sound
dampers or bends; the main speed ranges must be monitored (see Figure 3.21/Figure 3.22).
When installing a pipe system in air-conditioning ducts, the following must be observed:
– Since the FAS-420 and the pipe system are located in different pressure ranges, an air-
return pipe (see next page) must be provided.
– The pipe entries into the duct must be airtight.
– The portion of the pipe system that is outside the duct must be sealed airtight.
Figure 3.21 Direction change of the duct without air baffles
1 Main speed range
2 Exceptional
arrangement of the pipe
system (if distance of
3xdmin cannot be
observed)
3 Typical pipe system
arrangement
dmin Smallest duct diameter
Figure 3.22 Sound dampers in a duct
1 Smoke aspiration pipe
2 Sound proofing
3 Main speed range
4Sound dampers
5Bore
3 x dmin
1
23
1
4523
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Air-return pipe
The air-return pipe must be positioned at a distance of at least 2 m from the aspiration. The
open end of the return is sloped at a 45° angle (see Fig. 5.5, page 80).
If the distance of 2 m cannot be adhered to, the pipes must be arranged offset. This way, a
pressure fall between intake and exhaust can be achieved since the pipes are located in
different speed ranges (see Figure 3.24).
The distance of the air sampling openings to one another and to the duct wall is represented
in the following table.
Diameter of the air sampling openings
The diameter of the air sampling openings is derived from the number of air sampling
openings. The precise value can be obtained from Section 3.8 Simplified Pipe Planning.
Figure 3.23 Air-return pipe
FFront view
APlan view
1 Air-conditioning duct
2 Duct adapter
3Airflow
4 Aspiration
5Air-return pipe
b Width of air-
conditioning duct
v1 to
v4
Flow speed
Figure 3.24 Offset arrangement of the air return
1 Air-conditioning duct
2 Duct adapter
3Airflow
A Aspiration in area v1
BReturn in area v3
v1 to
v4
Flow speed
Bore distances Duct cross-section
≤0.5 m²
Duct cross-section
≤0.5 m²
Distance of the air sampling openings to the
wall
100 to 200 mm 200 to 300 mm
Distance of the air sampling openings to one
another
100 mm 150 mm
1
1
5
2 2
i1
2
3
4
5
6
7
8
9
10
4
3
3
F
v1
v2
v3
v4
A
FAS / FCS
FAS / FCS
5
1/2 b
b
2
1
i1
2
3
4
5
6
7
8
9
10
v
1
v
2
v
3
v
4
FAS / FCS
2
2≥ 200 mm
3
A
B
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The pipe is closed with an end cap without bore hole.
Arrangement
The air sampling openings must face the airflow (see Fig. 5.4).
Note when planning that the air-conditioning ducts are often only accessible from two sides
for installation of the pipe system.
Example
Figure 3.25 shows two planning examples of pipe systems in air-conditioning ducts.
Figure 3.25 Ducts with small and large duct cross-sections
A Cross-sectional area of
duct
(with A = a x b)
a Height of air-
conditioning duct
b Width of air-
conditioning duct
FAS / FCSFAS / FCS
A > 0,5 m2
a
100
100
200
150
b
1/2 b
b
1/2 b
a
A ≤ 0,5 m2
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3.12 Power Supply
To measure the power supply, the detector-ready state of the security system and the alarm
case are regarded. When the system is ready to detect, the power supply must provide the
standby current for the aspirating smoke detectors and ensure the emergency power
rechargeable battery is charged in accordance with DIN VDE 0833, part 1 (80% charged in
24 hrs).
Current calculation
The current in the event of an alarm is calculated according to the following formula:
Space protection
Equipment protection
Charging current
The current required to charge the battery is calculated using the formula below (for space
and equipment protection):
The power supply can service detectors from several detection ranges, e.g.:
– 1 x FAS-420 in detection zone 1
– 2 x FAS-420 in detection zone 2
– 4 x FAS-420 in detection zone 3
– 1 x FAS-420 in detection zone 4 etc.
In the example, the zone with the highest energy requirement is zone 3 and hence nmax =4.
For equipment protection, it is assumed that max. √n detectors can trigger an alarm at the
same time.
Please refer to Section 2.8 Technical Specifications, page 29 for the current consumption of
the FAS-420.
where
Ig= Total current of all connected aspirating smoke detectors in [A]
IA= Alarm current of an aspirating smoke detector in [A]
IQ= Standby current of an aspirating smoke detector in [A]
IPSmax = Max. power supply of the network power supply in [A]
IL= Charging current of the rechargeable batteries (80% of the nominal capacity
within 24 hours) in [A]
Kn= Rated battery capacity
n = Total number of connected aspirating smoke detectors
nmax = The maximum number of aspirating smoke detectors in a detection area (see
example below)
Ig = IA x nmax + IQ x (n - nmax) ≤ IPSmax
Ig = IA x √n + IQ x (n - √n) ≤ IPSmax
I
L
= 0,8 x K
n
24
Ig = IQ x n + IL ≤ IPSmax
NOTICE!
The power packs are laid out using the calculated total current (Ig) with the highest value.
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Line calculation
The maximum line length is derived from the permissible voltage drop on the supply line. The
permissible voltage drop is the difference between the end-point voltage of the backup
battery (21.5 V) and the lower operating voltage limits of the aspirating smoke detectors.
To guarantee the impermeability of the housing, the corresponding cable bushing must be
selected for the existing cable.
– M 25 cable bushing: Ø 9-14 mm
– M 20 cable bushing: Ø 8-12 mm
The Fire System Designer (FSD) enables case-specific calculations to be carried out for
planning the FPA-5000 Modular Fire Panel.
where
Lmax = Maximum line length in [m]
A = Strand cross-section in [mm²]
Ig= Total current of all connected aspirating smoke detectors in [A]
γ= Conductivity: Cu=57 m/Ωmm2
Δ U = max. voltage drop on the supply line
Lmax = γ x ΔU x A
Ig x 2
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4 Installing the Aspirating Smoke Detector
4.1 General
The regulations, guidelines and provisions described in Section 3.1 apply.
The following must be observed when installing the FAS-420 aspirating smoke detector:
1. Do not interfere with, modify or convert the equipment. If adjustments cannot be
avoided, consult with the operator, the unit manufacturer and/or the supply company.
2. All changes to the house mains (230 V/400 V supply) and to third-party systems must be
executed by the builder. This includes e.g.
– Primary connection of the mains charger,
– Carrying out any potentially essential lightning and surge protection measures in
compliance with relevant standards.
4.2 Installing the Detector Module
WARNING!
Installation must only be performed by authorized and specialized personnel!
Switch off the unit before carrying out any connection work!
Do not connect or disconnect the detector module while switched on!
NOTICE!
Only DM-TT-50(80), DM-TT-10(25) and DM-TT-01(05) detector modules certified to VdS may
be used.
The detector module settings are configured via the RPS software. All DIP switches on the
detector module must be set to "OFF".
The sensitivity value is based on measurements with standard test fires (old value in
brackets).The activation threshold for the airflow malfunction is set to 20% volume flow
change by default. Higher values are not permitted within EN 54-20.
Figure 4.1 Installing the Detector Module
1
2
5
6
34
FAS-420 series
HEAD1 DIAG HEAD2 DISPLAY
CAUTION!
Electrostatic discharge (ESD)! This can damage electronic
components. Ground yourself using a wrist strap or take other suitable measures.
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Proceed as follows to install the detector module (see Figure 4.1):
1. Open the unit by carefully unlocking the housing cover's quick locks.
2. Carefully pull the display board connection cable from the motherboard ("DISPLAY"
connection) and remove the housing cover. Once the unit is installed, fix the cover with a
service clip.
1. Spread the brackets provided for fixing the detector module slightly apart.
2. Carefully insert the detector module until you hear it click into place. Make sure that the
used detector module is fixed tightly and securely by the bracket by additionally pushing
together the brackets by hand.
3. Connect detector module 1 to the "HEAD1" connection on the motherboard using the
flatband cable.
FAS-420-TP2 and FAS-420-TT2 variants:
Connect detector module 2 to the "HEAD2" connection on the motherboard using the
flatband cable.
4. Reconnect the display board cable to the "DISPLAY" connection on the motherboard.
4.3 Settings on the Unit Motherboard
Figure 4.2 Settings on the motherboard
4.3.1 Setting the Detector Address
The aspirating smoke detector is set via the 8 DIP switches on the motherboard ("DIP") using
a suitable plastic insulated tool.
The default address is "0" (all DIP switches to "off").
The DIP switch settings for all approved addresses are listed in the table in the Appendix,
page 103-104 (0= off, 1= on).
NOTICE!
FAS-420-TP2 and FAS-420-TT2 variants
These unit types are factory prepared for the installation of two detector modules:
– The fan covers for both aspiration pipes are removed.
– The two pipe system connections are cut out.
– The pin pair on jumper BR1 is open (see Section 4.3.4 Number of Detector Modules).
BR DIP
24VDC
1
LSN
BR4
BR4
1 2
BR1
1 2
HEAD1
a2 -
b2+
a1 -
b1+
HEAD2
DISPLAY
6,9 V
9 V
DIAG
1x DM-...
2x DM-...
ON
1 2 3 5 6 7 8
4
ON
1 2 3 5 6 7 84
V -
V+
V -
V+
D -
D+
V -
V+
- +
Shield
X7 24VDC
X6 ext.
Display X8 LSN
Shield
LED1
LED2
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4.3.2 Setting the Fan Voltage
The standard fan voltage setting is 6.9 V. In critical applications, the fan voltage may be
switched to 9 V. This increases the transport speed in the pipe system, thus achieving faster
detection with longer pipe lengths.
To switch to 9 V, pull out jumper BR4 (see Figure 4.2).
The default setting is marked in bold.
4.3.3 Setting the Fan Voltage (SL Variant)
For FAS-420-xx systems, the standard fan voltage setting is 6.9 V.
The fan voltage on the fan activation circuit board on SL devices is set using the jumpers BR1
and BR2. The default setting is marked in bold.
4.3.4 Number of Detector Modules
The number of populated detector modules is factory set depending on the model variant
(jumper BR1 on the motherboard, see Figure 4.2).
Address
(A)
Operating mode Network structure
Loop Stub T-branch
0 Automatic address assignment in "improved
version" LSN mode
XX-
1 to 254 Manual address assignment in "improved
version" LSN mode
XXX
255 = CL Automatic address assignment in "classic" LSN
mode (address range: max. 127)
XX-
X = possible- = not possible
NOTICE!
It is not permitted to use different operating modes in one loop/stub/T branch next to each
other!
Fan voltage Jumper BR4, pin no. 1+2
6.9 V X
9V O
X = pin pair bypassedO = pin pair open
CAUTION!
Re-initialize the airflow if you switch the fan voltage. Close or open jumper BR4 only when the
unit is switched off.
CAUTION!
For SL variants, always remove jumper BR4 from the motherboard.
Close or open jumper the jumpers BR1 and BR2 only when the device is switched off.
Re-initialize the airflow if you have switched the fan voltage.
Fan voltage with FC-2 Jumper BR1, pin no. 1+2 Jumper BR2, pin no. 1+2
6.5 V O X
6.9 V XO
9V O O
X = pin pair bypassed O = pin pair open
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4.4 Installing the Unit
The air outlet on the unit must not be obstructed. There must be a free area of 10 cm in front
of the air outlet.
The aspirating smoke detector can be installed with the aspiration device pointing upwards or
downwards. Rotate the cover through 180° in the required direction.
Aspiration downwards
If the air-return pipe is directed upwards, it must be guaranteed that no foreign bodies or
dripping water can penetrate the air return. You should therefore use a short, downward
angled pipe (see Figure 4.3).
Mounting type MT-1
The aspirating smoke detector is either bolted directly to the wall provided for installation
using the rear panel or installed by means of unit mounting type MT-1, e.g. onto frames (see
Figure 4.4).
Variant Number of detector modules Jumper BR1, pin no. 1+2
FAS-420-TP1 / FAS-420-TT1 1 detector module X
FAS-420-TP2 / FAS-420-TT2 2 detector modules O
X = pin pair bypassedO = pin pair open
NOTICE!
– When selecting the installation location, it must be ensured that the unit displays are
easily visible.
– Remember when planning that the unit fans generate a noise level of approx. 45 dB(A).
– The installation location may not be in any door opening area.
Figure 4.3 Installation of the FAS-420
A Aspiration device
upwards
B Aspiration device
downwards with air
outlet opening upwards
1 Smoke aspiration pipe
2Air-return pipe
≥ 10 cm
≥ 10 cm
A
1
2
B
FAS-420 series
FAS-42 0 series
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Bore distances
The distances between the bores are shown in the figures below (all measurements in mm).
Figure 4.5 Bore distances of FAS-420 without mounting
Figure 4.4 Installing on mounting type MT-1
1 Horizontal installation
2 Vertical installation
12
FAS-420 series
FAS-420 series
Installation material FAS-420 Cylinder or flat head screws
– Thread diameter: max. 6 mm
– Head diameter: 10 mm
Mounting (type MT-1) Cylinder or flat head screws
– Thread diameter: max. 4 mm
– Head diameter: 5 to 7 mm
30
255
160
200
292
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Figure 4.6 Bore distances with mounting type MT-1
Reducing operating noises
If the aspirating smoke detector is installed in noise-sensitive areas, observe the instructions
in Section 2.5.8 Measures for Reducing Operating Noise, page 20.
Installation
1. First, clearly mark the fixing points on the installation position provided on the
equipment. Use the supplied drilling jig as an aid. To guarantee a safe and low-vibration
hold, the unit must be secured with four screws.
2. Using four screws appropriate for the installation method, attach the unit securely to the
surface or to the unit mounting. Ensure that the unit is not fixed under mechanical stress
and that the screws are not tightened too tightly, otherwise damage or undesirable
resonance noises could occur.
To equalize unevenness and/or prevent vibrations, vibration absorbers (subject to
separate order) must be used..
Connecting the aspiration pipe
1. To connect the aspiration pipe to the FAS-420, insert it into the pipe connection provided
(see Figure 4.7).
Figure 4.7 Connecting the aspiration pipe to the FAS-420 Aspirating
Smoke Detector
1 Smoke aspiration pipe
90 30
36
53
92
4,5
30
28,5
33,5
4
360
320
210
260
285
205
42
8,4∅
330
420
432
170
150
1
FAS-420 series
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4.5 Connection to the Fire Panel
4.5.1 Electrical Connection
Proceed as follows to prepare the electrical connections:
1. Using a screwdriver, carefully punch out the required cable entry points of the housing
(max. 5 x M20 and 2 x M25).
2. Fit the cable entry point(s) as required with M20 or M25 connections by pushing them
into the cable entries. 2 x M25 and 1 x M20 are supplied in the pack.
3. Punch out the connections using a sharp object.
Caution: Do not cut the cable bushings with a knife!
4. Route the connection cable(s) (max. 2.5 mm2) through the prepared M20 or M25
connections and into the unit. Now cut these to the required length inside the unit.
5. Wire the unit according to the connection information described below. The connection
terminals of the 24 V additional supply voltage and the LSN connection are plug
connections and are easy to remove.
NOTICE!
– Do not use glue to connect the aspiration pipe and pipe connection.
– In the event of sharp temperature fluctuations, the pipe must be fixed immediately in
front of the unit so that the pipe does not pull out of the pipe connection when the length
changes (see Section 5.1 Length Change of the Pipe System).
CAUTION!
Switch off the unit before carrying out any connection work!
NOTICE!
The units are usually connected to an additional power supply. When connecting to the FPA-
5000 Modular Fire Panel, the voltage is supplied via the AUX outputs of the BCM 0000 Battery
Controller Module. Alternatively, an external power supply unit (e.g. FPP-5000 or UEV 1000)
can be used.
Designation Cable Function
Shield - Shield wire
X8 LSN
b1+ Yellow LSN b, incoming
a1- White LSN a, incoming
b2+ Yellow LSN b, outgoing
a2- White LSN a, outgoing
X7 24 VDC
V+ Red Additional power supply, incoming
V- Black
V+ Red Additional power supply, outgoing
V- Black
X6 ext.
Display
V+ Red Supply voltage for digital parallel display *
V- Black
D+ - Data line connection for digital parallel display *
D- -
* Digital parallel displays for the FAS-420 series are available by separate order.
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4.5.2 LSN Configuration
Once the aspirating smoke detector has been connected to the LSN, the detector and
detector module, or the two detector modules (FAS-420-TP2 and FAS-420-TT2), are
configured using the FSP-5000-RPS programming software via a laptop connected to the
FPA-5000 Fire Panel.
Information on the LSN configuration can also be found in the Online Help feature of the RPS
programming software. Notes on diagnostics data for the fire panel are contained in the
operation guide for the FPA-5000.
4.5.3 Parameter Settings via RPS (Remote Programming Software)
The parameters for each detector module are specified in the relevant "Sensor" dialog
window via drop-down fields. The defaults settings in RPS are marked in bold.
1. Enter the used detector module.
2. Select all other parameters (see tables).
NOTICE!
Both a dual-detector dependency and a dual-zone dependency can be established when
connecting the FAS-420-TP2 and the FAS-420-TT2 to the FPA-5000 Modular Fire Panel.
Detector module Sensitivity Further sensitivity
DM-TT-01(05) DM-TT-01(05) DM-TT-10(25) DM-TT-50(80) A second sensitivity can
be set, e.g. for day/night
mode. For adjustable
sensitivity levels, see left.
DM-TT-10(25) 0.015%/m
(0.05%/m)
0.1%/m
(0.25%/m)
0.5%/m
(0.8%/m)
DM-TT-50(80) 0.03%/m
(0.1%/m)
0.2%/m
(0.5%/m)
1.0%/m
(1.6%/m)
0.06%/m
(0.2%/m)
0.4%/m
(1%/m)
0.12%/m
(0.4%/m)
0.8%/m
(2%/m)
Activation threshold for airflow malfunction Alarm delay
Low (+/- 10% volume flow change) 0 seconds
Average (+/- 20% volume flow change) 10 seconds
High (+/- 30% volume flow change) 30 seconds
Very high (+/- 50% volume flow change) 60 seconds
Airflow fault delay LOGIC·SENS filter
30 seconds Off
2 minutes On
15 minutes
60 minutes
NOTICE!
When the fire panel is in revision mode, the LOGIC·SENS is temporarily deactivated, allowing
the detector modules to be checked quickly and directly.
The sensitivity value is based on measurements with standard test fires (old value in
brackets).The activation threshold for the airflow malfunction is set to 20% volume flow
change by default. Higher values are not permitted within EN 54-20.
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4.6 Connecting an External Detector Alarm Display
A digital external detector alarm display can be connected to the 420 series aspirating smoke
detectors. This is available by separate order.
Connect the remote indicator to the motherboard of the FAS-420 using the terminal strip X6
(see Figure 4.2, Page 65). The unit must be in a voltage-free state for this. Alternatively,
FNS-420-R LSN Strobes can be connected via LSN and configured via FSP-5000-RPS.
4.7 Data Logging
The DIAG diagnostic software is used to conduct the device tests.
The current airflow sensor data, smoke level values, various status values and the parameters
configured via RPS can be read out locally using a laptop. This makes it much easier to detect
altered operation conditions in the event of service being carried out.
The supplied diagnostics cable connects the aspirating smoke detector ("DIAG" connection on
the motherboard) to the PC. The FAS-ASD-DIAG version is connected to the PC via a USB
port, earlier DIAG versions use a COM port (see Figure 4.8).
Windows 2000 or Windows XP can be used as the operating system (earlier diagnostic
software versions (with serial interface) run under WINDOWS 95, 98, ME, 2000 and NT).
For details, please see the diagnostic software documentation.
4.8 Replacing a Detector Module
Figure 4.8 Connecting a PC via the diagnostics cable
1USB port with
FAS-ASD-DIAG,
COM1/COM2 with
earlier versions
2 DIAG connection cable
3 FAS-420 motherboard
1
2
2
3
HEAD1 HEAD2 DISPLAY
DIAG
ON
1 2 3 5 6 7 84
- +
Shield
Figure 4.9 Replacing a detector module
1
2
5
6
34
FAS-420 series
HEAD1 DIAG HEAD2 DISPLA
Y
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1. Open the unit by carefully unlocking the housing cover's quick locks.
2. Carefully pull the display board connection cable from the motherboard ("DISPLAY"
connection) and remove the housing cover. Once the unit is installed, fix the cover with a
service clip.
3. Unplug the detector module’s connector cable from the motherboard.
4. Spread the brackets provided for fixing the detector module slightly apart and remove
the detector module.
Now spread the two brackets again. Carefully insert the new detector module until you
hear it click into place. Make sure that the used detector module is fixed tightly and
securely by the bracket by additionally pushing together the brackets by hand.
5. Attach the detector module to the connection on the motherboard: detector module 1 to
"HEAD 1", detector module 2 to "HEAD 2".
6. Reconnect the display board cable to the "DISPLAY" connection on the motherboard.
Before initialization, the operating voltage must be connected again. To initialize the pipe
system, press the S2 flow-init button on the detector module.
1. Close the housing cover.
CAUTION!
Switch off the unit before carrying out any connection work!
Do not connect or disconnect the detector module while switched on!
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5 Installation of the Pipe System
At the very least, the pipes and fittings used for the pipe system must comply with class 1131
according to EN 61386-1, 2004.Class 1131 requires the following of the pipe system in use:
The pipe system must be constructed using the following pipes and the associated fittings:
For pipe systems with long pipe feed lines (see also Section 3.9 Planning for Long Pipe Feed
Lines, page 56), you must also use the following pipes and the associated fittings:
The pipe system must be constructed according to planning specifications and taking into
account the planning guidelines (see Section 3 Planning).
1. Shorten the pipes with a pipe-cutter (38 mm) or a metal saw. Deburr the joints and clean
up the chips.
2. Before gluing, clean the adhesion points with the prescribed cleaning agent (Tangit) to
remove dirt and grease. Use the Tangit adhesive to glue the pipe transitions with the
appropriate fittings so that they are airtight.
3. Minimize pipe lengths and changes of direction. Pipe elbows have an extremely high flow
resistance. Therefore, they should be used only where they cannot be avoided for
structural engineering reasons. If necessary, reduce pipe lengths in proportion to the
pipe elbows used.
4. Fix the pipe system. It must not sag or be possible to move it. Fasten the pipes with pipe
clips without rubber inserts. The distance between the pipe clips should not exceed
80 cm. At high temperatures, reduce the distance between the pipe clips to a maximum
of 30 cm.
Features Severity
Compression resistance 125 N
Shock resistance 0.5 kg, drop height of 100 mm
Temperature range -15 °C to +60 °C
Exterior diameter Internal diameter
ABS PVC
Smoke aspiration pipe 25 mm 21.4 mm 21.2 mm
Exterior diameter Internal diameter
ABS PVC
Smoke aspiration pipe 40 mm 35 mm 36.2 mm
NOTICE!
When constructing the pipe system, observe the temperature range specified under
Section 2.8.3 Pipe system, page 30 in the Technical Specifications chapter.
NOTICE!
If halogen-free plastics must be used, the installation procedures may vary depending on the
selected material:
– ABS is glued
– Polypropylene (PP) is welded
– Polyamide (PA) is pushed together and bolted.
NOTICE!
Pipe bends must be given preference over pipe elbows. Too many changes of direction can
cause an airflow malfunction in the FAS-420 and have a negative impact on the detection time.
As a benchmark, a pipe bend corresponds to a straight pipe length of 0.3 m. An elbow
corresponds to a straight pipe length of 1.5 m.
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5. Close open pipe ends with an end cap.
5.1 Length Change of the Pipe System
Length changes to the pipes are caused by temperature changes. Temperature increases
cause lengthening of the pipes, temperature drops cause shortening of the pipes. The length
change must be given particular consideration if the temperature of the pipe system at the
time of installation deviates from the normal operating temperature.
The length change can be calculated using the following formula:
ΔL = L x ΔT x δ
For example, a temperature change of 10 °C on a 10 m-long PVC pipe causes a length change
of 8 mm.
Mounting clamps
PVC pipe clips are used as standard for installing the pipe system. These clips do not allow
any length extensions.
NOTICE!
Do not use pipe clips with rubber inserts since these do not allow length extensions and the
pipe system may bend or even tear.
NOTICE!
On completion, test the pipe system:
–For leaks
– For fault-free connections
– For correct planning of the air sampling openings.
where
ΔL = Length change in [mm]
L = Length of the pipe to be calculated in [m]
ΔT = Maximum temperature difference in [°C]
δ= Length change coefficient in [mm/m x °C]
δPVC = 0.08 mm/m x °C
δABS = 0.101 mm/m x °C
Figure 5.1 Overview of mounting clamps
1 Standard mounting clamps for 25 mm
pipe
2 Plastic mounting clamps for 25 mm pipe,
for length changes and temperatures of
up to -40 °C
3 Spring steel clamp for 25 mm pipe, for
high-rise warehouses and temperatures
of up to -40 °C
12 3
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5.2 Air Sampling Openings
Air sampling openings
Select the structure of the air sampling opening (aspiration boring) and the position in the
pipe system according to the project specification and taking into account the planning
guidelines.
Aspiration borings
1. Bore an aspiration boring with a 10 mm drill at a right angle to the pipe. Deburr the
boring carefully and remove chips. Clean the boring area (across the entire span of the
pipe) of grease and dust.
2. Select the size of the aspiration reducing film sheet according to the specifications.
Glue the aspiration reducing film sheet to the opening (see Figure 5.3).
3. Glue the marking tape over the aspiration reducing film sheet, in order to prevent the film
sheet from becoming detached.
Figure 5.2 Example of an aspiration boring with aspiration reducing
film sheet
1 Smoke aspiration pipe
2 Aspiration reducing film
sheet with air sampling
opening
3 Marking tape for aspiration
reducing film sheet
4 Air sampling opening
5 Fire red (RAL 3000)
6 Transparent
Figure 5.3 Applying the aspiration reducing film sheet
1 Smoke aspiration pipe
2 10 mm aspiration boring
3 Aspiration reducing film
sheet
4 Marking tape for aspiration
reducing film sheet
5 Fire red stripes (RAL 3000)
6 Transparent
136
445
2
7.0
7.0
7.0
7.0
7.0
7.0
1
1
2
3
4
5
6
2
3
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5.3 Ceiling Lead-through
The following steps are essential for installing a ceiling lead-through:
1. Before gluing, clean the adhesion points with the prescribed cleaning agent to remove
dirt and grease. Glue the hose connection to the relevant T-fitting on the aspiration pipe
using Tangit adhesive.
2. Drill a ∅13 mm hole in the false ceiling for each ceiling lead-through.
3. Install the ceiling lead-through by removing the nut, pushing the part with the hose nozzle
through the bore from below, then refitting and tightening the nut above the false ceiling.
4. Determine the required aspiration hose and cut to length. Place the cut end of the hose
onto the hose nozzle in the ceiling lead-through and onto the hose connection on the
aspiration pipe T-fitting. If necessary, heat up the hose using a hot air blower.
5. Glue the required aspiration reducing film sheet (as per the planning guidelines) onto the
ceiling lead-through.
NOTICE!
The holes of the aspiration reducing film sheet and the marking tape must be exactly over the
aspiration boring so that the opening diameter of the aspiration reducing film sheet is not
changed.
To keep the adhesive surfaces of the film sheets free of dust and grease, avoid touching them.
1 T-fitting
2 Hose connection for ceiling lead-through
3 Aspiration hose for ceiling lead-through
4 Ceiling lead-through nut
5 False ceiling
6 Ceiling lead-through (part)
7 Aspiration reducing film sheet
1
1
2
3
5
4
7
4
2
5
3
6
NOTICE!
The hole in the aspiration reducing film sheet must be positioned exactly over the opening in
the ceiling lead-through. The opening diameter in the aspiration reducing film sheet must not
be altered.
To keep the adhesive surfaces of the film sheets free of dust and grease, avoid touching them.
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5.4 Monitoring with Forced Airflow
5.4.1 Detection at Intake and Exhaust Openings
5.4.2 Detection in the Bypass
For details on connecting the air return, please see Section 5.6 Air-return Pipe.
For FAS-420 planning in these applications, see Section 3.11 Planning for Forced Airflow,
page 58.
CAUTION!
If the smoke aspiration occurs in a forced airflow (fan, air-conditioning units), direct the air
sampling openings depending on the exhaust speed in the airflow (see Figure 5.4).
Figure 5.4 Positioning the air sampling opening depending on air
speed
1 Aspiration pipe with air
sampling openings
2 Exhaust speed < 0.5 m/s
3 Exhaust speed > 0.5 m/s
1
23
30°
NOTICE!
For detection in airflows ≥ 2 m/s, additionally feed the exhaust from the FAS-420 back into the
airflow area. Cut the end of the air-return pipe at an angle of 45° (see Figure 5.5).
Figure 5.5 Positioning the air-return pipe – example with an air-con-
ditioning duct (bypass)
1 Air-conditioning duct
2 Duct adapter
3 Aspiration
4Air-return pipe
b Width of air-conditioning
duct
1
FAS / FCS
2
3
4
b
1/2 b
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5.5 Air Filter
5.5.1 Installing the Air Filter Box
Air filter box
1. To use the filter box in the pipe system, use the two PG29 filter screw connections
supplied.
2. Install these screw connections precisely as for the pipe adapter.
3. When installing the filter, note the throughflow direction, which is specified on the type
plate on the side of the lower part of the housing.
4. Screw the air filter housing directly onto the wall with the lower part of the housing.
Installation material
Cylinder or flathead screws are suitable for wall mounting:
– Maximum thread diameter: 4 mm
– Head diameter: 5 to 7 mm.
5.5.2 Filter Change on the Air Filter Box
To replace the filter inserts, proceed as follows (see Figure 5.7):
Figure 5.6 Boring distances of holes in base of FAS-ASD-WS air filter box
90
110
Figure 5.7 Changing the filter inserts (in fig.: FAS-ASD-FL Filterbox
Large)
APrimary filter
B Coarse dust filter
C Fine dust filter
1
2
ABC
FAS-420 series
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1. Loosen the four screws and remove the housing cover from the filter box.
2. Remove the old filter inserts and clean the inside of the housing carefully to remove dust.
Now fit the cleaned or new filter inserts. When using the spare filter set for the large air
filter box, ensure you follow the correct sequence (see label on base of housing).
Replace the housing cover and screw it back on.
5.6 Air-return Pipe
Fix the air-return pipe within the air exhaust opening. No additional components are required.
Steps:
1. Remove the pre-punched pipe opening in the protective grille of the air exhaust opening
(e.g. using a small edge cutter).
2. Insert the air-return pipe through the opened pipe opening in the protective grille and fix
it to the FAS-420 with the rubber ring already integrated into the air-exhaust opening.
NOTICE!
In applications with largely fine dust build-up, three fine dust filters can also be used (subject
to separate order).
Figure 5.8 Installing the air-return pipe
1 Air-return pipe (aspiration
pipe)
1
FAS-420 series
CAUTION!
In the event of sharp temperature fluctuations, the pipe must be fixed immediately in front of
the unit so that the pipe does not pull out of the pipe connection due to length change (see
Section 5.1 Length Change of the Pipe System).
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5.7 Three-way Tap
The three-way tap is required to blow out the pipe system with blast air (as a preference) or
compressed air (compressed air is compressed, non-purified and humid ambient air. Blast air,
in contrast, is purified and dehumidified air. If the FAS-420 and pipe system are located in
areas with temperatures below freezing, blast air is to be used for blowing out). The
aspirating smoke detector and the downstream pipe system accessory components (e.g. air
filter) must not and cannot be blown-out.
A check valve for relieving pressure from the pipe system must be fitted to the end of each
pipe branch. The check valve prevents damage to the air sampling openings and prevents dirt
deposits from being blown through the pipe system.
To prevent aspiration reducing film sheets in deep-freeze areas from tearing, it is advisable to
use special deep-freeze aspiration reductions.
Check valve and deep-freeze aspiration reductions are available on separate order.
Connections
Fasten the three-way tap using the transition screw connections in the pipe system.
During installation, note the assignment of the connections:
– Install the aspiration pipe system on connection C.
– Install the FAS-420 on connection A.
– Attach the compressed air supply (compressor or mobile blowing-out system) to
connection B of the three-way ball valve.
The manual blowing-out process on the pipe system is carried out as follows:
Figure 5.9 Installing the three-way tap
1 Blast air/compressed air
connection
2 Pipe system connection
3 Aspirating smoke detector
connection
4 Air filter (optional)
A
BC
12
34
FAS-420 series
A
B
C
2
A
B
C
3
A
B
C
1
NOTICE!
A single blowing-out process can be completed within 50 seconds. If within this time the unit
is still connected to the pipe system, the malfunction message “airflow sensor module
malfunctioning” will not be evaluated. If the blowing-out process has to be repeated (steps 1
to 3), wait at least 120 s.
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1. Position the tap lever so as that the blast air and pipe system (B-C connection) are
connected.
The connection to the FAS-420 must be blocked for blowing-out!
Manually blow out the pipe system for approximately 10 seconds.
2. Set the lever of the tap such that the device is not connected with the pipe system or
with the connection for the blast or compressed air supply. Wait approximately 20
seconds so that dust and dirt raised in the pipe system can settle and thus will not be
sucked through the aspirating smoke detector.
3. Reconnect the blown-out pipe system to the FAS-420 within a further 10 seconds by
switching the tap accordingly (A-C connection).
5.8 FAS-ASD-WS Water Separator
The FAS-ASD-WS Water Separator must be fitted at the lowest point in the pipe system
downstream of the air filter and the aspirating smoke detector (see Figure 5.10).
Attach two 45° pipe elbows on both sides (not supplied as standard) in order to achieve the
optimum distance from the wall for mounting the brackets. When installing, note the correct
direction of flow (see arrow on plastic container).
Also fasten the water separator with two screws and the clamp.
To empty, open the drain valve (see Section 7.8 Maintenance Intervals, page 97).
Figure 5.10 Installing the FAS-ASD-WS Water Separator in the pipe
system
1 FAS-ASD-WS Water
Separator
2 Pipe system connection
3 45° pipe elbow
1
23
3
FAS-420 series
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5.9 Detonation Safety Barrier
The detonation safety barriers are integrated into the pipe system and the air return at a
minimum distance of 1 m from the aspirating smoke detector. The detonation safety barrier is
glued to the FAS-420 on the side of the pipe system or the air-return pipe via a transition
screw connection and connected to the side of the unit via a steel pipe (see Figure 5.11). The
connection between detonation safety barrier and steel pipe/transition screw connection is
made using a ¾" screw connection.
5.10 Test Adapter
For test purposes, the pipe system connection is simply pulled out and the test pipe
connected directly to the aspirating smoke detector. However, this is not possible if the
aspiration pipe system has to be permanently mounted. A test adapter should be used for this
application.
Figure 5.11 Installation of the detonation safety barrier on the pipe
system and the air return
1 Detonation Safety Barrier
2 Air-return pipe connection
3 Steel pipe connection
4 Pipe system connection
1
1
4
2
3
3
> 1 m
> 1 m
FAS-420 series
NOTICE!
To create a gas-tight connection between the detonation safety barrier and steel pipe/
transition screw connection, a sealing tape or thread seal must be used.
The flow direction for installing the detonation safety barrier is secondary.
Figure 5.12 Installing the test adapter in the pipe system
1 Test adapter
2 Pipe system connection
1
2
FAS-420 series
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The test adapter is glued into the pipe system in the direct vicinity of the aspirating smoke
detector. During normal operation, the test adapter must always be closed. It is only opened
for maintenance and service purposes in order to admit test gas or smoke.
CAUTION!
Once the detector module and alarm forwarding have been tested (see *** 'Checking Airflow
Monitoring' on page 88 ***), the test adapter must be reclosed to eliminate the risk of an
airflow malfunction!
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6 Commissioning
6.1 Preparation
Checking the settings
Check the settings of the FAS-420 (Section 4.3 Settings on the Unit Motherboard, page 67)
prior to commissioning.
Then connect the unit to the power supply. The detector module of the FAS-420 is ready for
operation after approximately 1 minute.
To commission the FAS-420, completely install the pipe system and connect it.
Connection test
Check whether…
1. The correct aspiration reducing film sheets are glued to the air sampling openings.
2. The pipe system is securely connected to the FAS-420 pipe connection.
3. All pipe fittings are glued together and the pipe system is sealed.
To do this, first close all air sampling openings (e.g. with duct tape). Now measure the
negative pressure using a digital pressure gauge (see Section 6.6.2 Conducting the
Functional Test, page 90)
– Either at the opening for the return airflow
– Or using a test adapter installed directly upstream of the unit in the aspiration pipe
(see Section 5.10 Test Adapter, page 85).
After a short run-up time, the negative pressure must lie within the following range:
– Fan voltage 6.9 V: 250 Pa to 310 Pa
– Fan voltage 9 V: 460 Pa to 530 Pa.
FAS-ASD-DIAG Diagnostic Software
Then check the system using the DIAG diagnostic software.
Follow the procedure below:
1. Install the diagnostic software on a laptop or PC (for details on system requirements and
connection, see Section 4.7 Data Logging, page 74).
2. The FAS-420 is connected to the PC via the "DIAG" port on the motherboard using the
supplied diagnostics cable.
3. The diagnostic software is started.
The current FAS-420 data is displayed on the PC's screen.
FPA-5000 diagnostics data
Notes on diagnostics data for the fire panel are contained in the user guide for the FPA-5000.
NOTICE!
For a later evaluation of the airflow value, record the calibration type (see
Section 6.2 Calibrating the Airflow Sensor, page 86), start-up temperature, air pressure and
height above sea level in the test log (see Section 8.5 Test Log for Aspirating Smoke Detectors
in the FAS-420 Series, page 110).
Once the airflow sensor has been calibrated, no further changes may be made to the pipe
system.
If changes are necessary at a later time, the airflow sensor must be re-calibrated (see
Section 6.2 Calibrating the Airflow Sensor).
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6.2 Calibrating the Airflow Sensor
Described below is the procedure for calibrating the airflow sensor, both irrespective of air
pressure, i.e. in simplified form, and depending on air pressure. Restrictions for the simplified
procedure are contained in Section 3.3 Airflow Monitoring, page 36.
For an air-pressure-dependent calibration, use the air pressure correction tables in the
appendix (Section 8.2 Air Pressure Correction Tables for Airflow Sensor Calibration,
page 105).
To be able to judge the airflow sensor value correctly during start-up work, always adhere to
the type of calibration in the test log.
6.2.1 Air-Pressure-Independent Calibration
1. Make sure that the aspirating smoke detector has been operating for at least 30 minutes.
2. To initialize the connected pipe system, press the S2 flow-init button on the detector
module concerned (see Figure 6.1), until the green operating LED on the unit starts to
flash. Initialization is complete after approx. 5 s. Following successful initialization, the
operating LED lights up permanently.
3. Connect the housing to the FAS-420 and check that it is correctly positioned.
No further modifications may be made to the pipe system during or after initialization. The fan
voltage must also remain unchanged following initialization. Otherwise, the initialization
procedure must be repeated.
NOTICE!
The aspirating smoke detector must be operated for at least 30 min prior to the airflow being
initialized to bring it up to operating temperature.
Figure 6.1 Air-pressure-independent calibration of the airflow sensor
1 Detector module
2 S2 flow-init button
2
1
FAS-420 series
NOTICE!
If initialization is not successful, the unit reports a collective fault (fault relay drop off). The
precise cause of the abort can be read out using the DIAG Diagnostic Software.
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6.2.2 Air-Pressure-Dependent Calibration
A barometer (recommended: GPB 1300 digital precision pocket barometer from Greisinger
electronic GmbH) and a multimeter are required to calibrate the airflow sensor dependent on
air-pressure. The following steps are required:
1. Make sure that the aspirating smoke detector has been operating for at least 30 minutes.
2. Determine the height above sea level, air pressure, and ambient temperature of the
installation location and enter these values in the test log.
3. Use the air pressure correction tables (see Appendix Section 8.2 Air Pressure Correction
Tables for Airflow Sensor Calibration, page 105) to bring the calibration value in line with
that of the airflow sensor. Also enter these values into the test report. When selecting the
air-pressure-correction table, take the pipe planning into account
4. Remove the "X6 ext. Display" connection terminal from the motherboard. Connect the
multimeter to the measuring points MP2 (+) and MP3 (-) (see Figure 6.2). Note the
polarity. On the measuring device, select the "V-DC" range. The default voltage at the
measuring points is 1.2 V.
5. Using the trimming potentiometer, set R53 to the calibration value from the air-pressure-
correction table with the help of a small screwdriver. Reinsert the "X6 ext. Display"
connection terminal into the motherboard.
6. Connect the FAS-420 housing and check that it is correctly positioned.
6.3 Testing the Detector Module and Alarm Transmission
1. Detach the detector module using test aerosol. Spray the test aerosol either into the first
air sampling opening or into the test adapter on the pipe system.
Figure 6.2 Air-pressure-dependent calibration of the airflow sensor
1Detector module
2 Connection terminal
"X6 ext. Display"
3 Trimming
potentiometer R53
MP2/MP3 Measuring points
MP2 (+) and MP3 (-)
2
3
1
FAS-420 series
12
JU1
R53
MP1
MP2
MP3
MP4
X6 ext. Display
NOTICE!
In order to accelerate the alarm evaluation during gas testing, LOGIC · SENS must be set to
"off" (see Section 4.5.3 Parameter Settings via RPS (Remote Programming Software). On
completion of the test, reset LOGIC·SENS to "on".
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2. Use the table below to check the transmission line to the fire panel.
6.4 Checking Malfunction Transmission
Malfunction transmission occurs as part of checking the airflow monitoring system (as per
section below).
Check whether, when a pipe breakage and an obstruction are detected, the malfunction is
displayed at the aspirating smoke detector and at the fire panel.
6.5 Checking Airflow Monitoring
Pipe breakage
Check the breakage detection:
1. Detach the pipe from the connection to the FAS-420 or open the test adapter.
2. Check whether the malfunction display on the aspirating smoke detector lights up.
3. Check the data of the airflow sensor using DIAG Diagnostic Software and a PC or laptop.
4. Check whether the malfunction is displayed on the fire panel.
5. Enter the results into the test log.
Obstruction
Check the obstruction detection:
1. Close – depending on the planned airflow monitoring – the corresponding number of air
sampling openings with some duct tape.
2. Check whether the malfunction display on the aspirating smoke detector lights up.
3. Check the data of the airflow sensor using DIAG Diagnostic Software and a PC or laptop.
4. Check whether the malfunction is displayed on the fire panel.
5. Enter the results into the test log.
Troubleshooting
If the airflow malfunctions are not correctly detected by the unit, proceed as follows:
Check whether…
1. All inlet holes are free
2. The pipe system has breaks or fractures
Check… If this is not the case, ...
– Whether the alarm is displayed on the
aspirating smoke detector
– Check whether the display board is
connected
– There is a fault with the aspirating smoke
detector Replace the detector module
– Whether the alarm is transmitted to the
fire panel and reported on the
appropriate line
– Check the transmission lines
NOTICE!
The steps below may only be carried out following an airflow calibration in accordance with
Section 6.2 Calibrating the Airflow Sensor.
NOTICE!
A pipe breakage or pipe obstruction is indicated by a flash code via an LED on the detector
module (see Section 7.2 Flash Code Table, page 94):
– Breakage: 3 x flashes
– Obstruction: 2 x flashes
The corresponding flash code is repeated every two seconds.
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3. All pipe connections are tight
4. The fan can blow out freely
5. The correct aspiration reducing film sheets were used
If no faults are detected, the functionality of the FAS-420 and/or the airflow sensor is checked
using the test pipe and diagnostic software (see Section 6.6 FAS-420 Functional Test).
6.6 FAS-420 Functional Test
Check functionality using the test pipe, a digital pressure gauge and the diagnostic software.
The aspirating smoke detector must be operating for at least 30 min.
6.6.1 Preparations for the Functional Test
Select the following parameter settings using the FSP-5000-RPS programming software (the
settings in the bold font indicate deviations from the default setting):
Connecting the digital pressure gauge:
1. Connect the test pipe (see Figure 6.3)
2. Connect the pressure measuring hose to the adapter connection B.
3. Connect the 4-pin plug of the adapter to the digital pressure gauge and switch it on.
Activation threshold for airflow malfunction Alarm delay
Low (+/- 10% volume flow change) 0 seconds
Average (+/- 20% volume flow change) 10 seconds
High (+/- 30% volume flow change) 30 seconds
Very high (+/- 50% volume flow change) 60 seconds
Airflow fault delay LOGIC·SENS filter
30 seconds Off
2 minutes On
15 minutes
60 minutes
Figure 6.3 Testing the functionality of the FAS-420
1 Test pipe
2 Aspiration borings
3 Pressure measuring hose
4 Adapter
5 Digital pressure gauge
A/B Adapter connection
BA
ø 7,0 mm
ø 4,2 mm
ø 4,6 mm
1
3
2
3
4
5
1
2
FAS-420 series
NOTICE!
For the FAS-420-TP2 and FAS-420-TT2, the preparation for the function test (see above) and
the following functional test (steps 1–7) are to be carried out for both detector modules and/
or both pipe systems.
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6.6.2 Conducting the Functional Test
The functional test can be conducted with or without a digital pressure gauge. The complete
test is described below. If the test on the FAS-420 reveals deviations from the described
procedure, the unit or its airflow sensor is defective.
1. Make sure that the aspirating smoke detector has been operating for at least 30 minutes.
2. Close all the test pipe’s aspiration borings with some duct tape.After a few seconds,
the LED flash code on detector module I and detector module II must signal an
obstruction (see NOTE). After a short run-up time, the negative pressure must lie within
the following range:
– Fan voltage 6.9 V: 250 Pa to 310 Pa
– Fan voltage 9 V: 460 Pa to 530 Pa.
3. Open all of the test pipe's aspiration borings. After a few seconds, the flash code of the
LED must go out.
4. Remove the test pipe. The LED flash code on detector module I and detector module II
must signal a breakage.
5. Reconnect the test pipe to the device. After a few seconds, the flash code of the LED
must go out.
DIAG diagnostic software
The DIAG Diagnostic Software can be used to track airflow values during the function test.
Save all diagnostics data as a file. To be able to compare the data read out, save each file
under a different file name.
Information for installing the diagnostic software can be found in Section 6.1 Preparation,
page 85.
NOTICE!
A pipe breakage or pipe obstruction is indicated by a flash code via an LED on the detector
module (see Section 7.2 Flash Code Table, page 94):
– Breakage: 3 x flashes
– Obstruction: 2 x flashes
The corresponding flash code is repeated every two seconds.
NOTICE!
– Once any faults have been rectified, the parameter settings must be restored to their
original status via the RPS software.
– The commissioning procedure must be repeated from Section 6.2 Calibrating the Airflow
Sensor.
– Once commissioning has been concluded, the set values must be collected and saved
using the DIAG Diagnostic Software. A printout of the set values should be placed in the
project folder.
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7 Maintenance
7.1 Visual check
Check whether…
– The pipe system is securely installed and undamaged (where freely accessible)
– The air sampling openings of the pipe system are free
– The aspiration pipe and connection cable are securely connected
– The unit mounting – if present – is properly secured
– The aspirating smoke detector is damaged (see also Section 7.2 Flash Code Table).
7.2 Flash Code Table
Malfunctions and unit statuses are displayed using flashcodes:
– By means of an LED on the detector module
– By means of one or two LED(s) on the unit motherboard (one LED per detector module,
see Fig. 4.2, page 67).
7.2.1 1 Flash - Error: Internal Voltage Monitoring 1
In operation with two detector modules, both LEDs flash. When troubleshooting, the
following steps should be carried out in the specified order.
1. Operating voltage too low
– Using a multimeter, measure the operating voltage (DC) of the aspirating smoke
detector.
– The measurement value must be between 14 V and 30 V.
Restore the correct power supply.
2. Display board faulty
– Disconnect the power from the unit.
– Remove the display board's connection cable from the motherboard.
– Restore the operating voltage and run the unit for a few minutes.
– If the display board is faulty, the malfunction will no longer occur.
Replace the faulty display board.
LED flash code on detector module
1 flash Airflow initialization active (flow-init)
2 flashes Airflow too small (obstruction)
3 flashes Airflow too large (pipe breakage)
4 flashes Unit upload (approx. 2 min)
Permanently lit Detector faulty
LED flash code on the motherboard (LED1/LED2)
1 flash Error: internal voltage monitoring 1
2 flashes Error: internal voltage monitoring 2
3 flashes Error: fan voltage monitoring
4 flashes Error: air pressure correction voltage monitoring
5 flashes Software error
6 flashes Internal error 1
7 flashes Internal error 2
8 flashes Unit upload (approx. 2 min)
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3. Motherboard faulty
– You will need a second motherboard to make this diagnosis.
– Disconnect the power from the unit.
– Replace the motherboard with a new motherboard of the same type.
– Restore the operating voltage and run the unit for a few minutes.
– If the motherboard is faulty, the malfunction will no longer occur.
Replace the faulty motherboard.
7.2.2 2 Flashes - Error: Internal Voltage Monitoring 2
In operation with two detector modules, both LEDs flash. When troubleshooting, the
following steps should be carried out in the specified order.
1. Operating voltage too low
– Using a multimeter, measure the operating voltage (DC) of the aspirating smoke
detector.
– The measurement value must be between 14 V and 30 V.
Restore the correct power supply.
2. Detector module faulty
– Disconnect the power from the unit.
– Replace the detector module incl. connection cable with a new module of the same
type.
– Restore the operating voltage and run the unit for a few minutes.
– If the detector module is faulty, the malfunction will no longer occur.
– If you are using two detector modules, repeat the process with the second detector
module.
Replace the faulty detector module.
3. Motherboard faulty
– You will need a second motherboard to make this diagnosis.
– Disconnect the power from the unit.
– Replace the motherboard with a new motherboard of the same type.
– Restore the operating voltage and run the unit for a few minutes.
– If the motherboard is faulty, the malfunction will no longer occur.
Replace the faulty motherboard.
7.2.3 3 Flashes - Error: Fan Voltage Monitoring
In operation with two detector modules, both LEDs flash. When troubleshooting, the
following steps should be carried out in the specified order.
1. Operating voltage too low
– Using a multimeter, measure the operating voltage (DC) of the aspirating smoke
detector.
– The measurement value must be between 14 V and 30 V.
Restore the correct power supply.
2. Fan connection poles reversed
– The fan does not move.
– Disconnect the power from the unit.
– Disconnect the fan connection cable from the motherboard.
– Restore the operating voltage and run the unit for a few minutes.
– If the fan connection is faulty, the malfunction will no longer occur.
Check the fan connection on the motherboard: terminal 1 = red, terminal 2 = black).
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3. The fans are faulty or obstructed
– If the fan connection is correct (troubleshooting step 2), the malfunction will
reoccur.
– Measure the fan voltage (DC) using a multimeter.
– If the fan voltage is outside the limits specified below, the fan may be faulty:
If the fan voltage is set at 6.9 V, the maximum permissible setting is 7.6 V and the
minimum is 6.0 V.
If the fan voltage is set at 9.0 V, the maximum permissible setting is 10.0 V and the
minimum is 7.8 V.
Replace the entire housing, as the fans cannot be removed.
4. Motherboard faulty
– You will need a second motherboard to make this diagnosis.
– Disconnect the power from the unit.
– Replace the motherboard with a new motherboard of the same type.
– Restore the operating voltage and run the unit for a few minutes.
– If the motherboard is faulty, the malfunction will no longer occur.
Replace the faulty motherboard.
7.2.4 4 Flashes - Error: Air Pressure Correction Voltage Monitoring
In operation with two detector modules, both LEDs flash. When troubleshooting, the
following steps should be carried out in the specified order.
1. The R3 potentiometer is moved to the setting for the pressure-dependent airflow
calibration.
– Using a multimeter, measure the voltage (DC) at measuring points MP2 (x) and MP3
(-).
– The default measurement value is 1.2 V. However, deviations may occur due to the
calibration of the airflow dependent on air pressure.
– The measurement value must be between 0.5 V and 1.9 V. If the measured voltage
value is outside of this range, the R3 potentiometer setting is faulty.
Note: The malfunction only occurs at voltages below 0.2 V or above 2.3 V.
Using the R3 potentiometer, reset the voltage to a point between the measuring points
MP2 (x) and MP3 (-).
1.2 V for calibration independently of air pressure.
In accordance with the air pressure correction table for air-pressure-dependent
calibration.
2. Motherboard faulty
– The voltage cannot be set in step 1.
– Disconnect the power from the unit.
– Remove the detector module's connection cables from the motherboard.
– Restore the operating voltage and run the unit for a few minutes.
– If the voltage at measuring points MP2 and MP3 cannot be set with the R3
potentiometer, the motherboard is faulty.
Note: If operating without a detector module, the diagnostics LED flashes 7 times.
Replace the faulty motherboard.
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3. Detector module faulty
– Disconnect the power from the unit.
– Reconnect the connection cable for the first detector module to the motherboard.
– Restore the operating voltage and run the unit for a few minutes.
– If the error reoccurs, the first detector module is faulty.
– If you are using two detector modules, repeat the process with the second detector
module.
Replace the faulty detector module.
7.2.5 5 Flashes - Error: Programming Error
In operation with two detector modules, both LEDs flash. The motherboard is faulty and must
be replaced with a new board.
7.2.6 6 Flashes or 7 Flashes - Error: Internal Error 1 or Internal Error 2
If only one LED flashes in operation with two detector modules, the associated detector
module is probably faulty. When troubleshooting, the following steps should be carried out in
the specified order.
1. Incorrect detector module in use.
– Ensure that you are using a suitable detector module.
If a detector module is unsuitable, replace it with a suitable one.
2. Faulty connection cable between motherboard and detector module.
– Disconnect the power from the unit.
– Replace the connection cable with a new one.
– Restore the operating voltage and run the unit for a few minutes.
– If the malfunction no longer occurs, the faulty connection cable was responsible for
the error.
Replace the faulty connection cable.
3. Detector module faulty
– Disconnect the power from the unit.
– Replace the detector module with a new one of the same type.
– Restore the operating voltage and run the unit for a few minutes.
– If the error does not reoccur, the detector module was faulty.
Replace the faulty detector module.
4. The motherboard is faulty.
– If you are using two detector modules, both diagnostics LEDs flash.
– Disconnect the power from the unit.
– Replace the motherboard with a new motherboard of the same type.
– Restore the operating voltage and run the unit for a few minutes.
– If the error does not reoccur, the motherboard was faulty.
7.2.7 8 Flashes: Unit Initialization
This display does not indicate an error. The LEDs flash during the initialization phase, after the
power supply has been connected, to indicate that the system is starting. During the
initialization phase, the detector is unable to detect smoke.
7.3 Detector Module and Alarm Transmission
Proceed in accordance with Section 6.3 Checking the Detector Module and Alarm
Transmission, page 89. Also check the detector module visually for exterior contamination or
damage and replace if necessary.
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7.4 Pipe system
Check the pipe system and the air sampling openings for obstruction in areas susceptible to
dust particles or icing. Where necessary, blow out the pipe system and air sampling openings
using blast air (class 3 for recycling areas or class 2 for deep-freeze areas). Use a mobile
cylinder of compressed air (blowing-out system) or activate the manual blowing-out system
located on site. The components (compressors, compressed air containers, dryers) required
to supply the compressed air can be obtained directly from the relevant compressed air
system suppliers.
Blowing out
The compressed air supply to the pipe system must be connected so that only the pipe
system itself is blown out. The aspirating smoke detector and the downstream accessory
components of the pipe system (e.g. air filter) must not and cannot be blown out.
A check valve must be installed at the end of each pipe branch. The check valve prevents
damage to the air sampling openings and prevents dirt deposits from being blown through the
pipe system. To prevent aspiration reducing film sheets in deep-freeze areas from tearing, it is
advisable to use special deep-freeze aspiration reductions.
The compressed air supply and compressed air connection must be installed so that at least
0.7 bar of pressure remains available per pipe branch within the pipe system. This means a
minimum of 0.7 bar for the I-pipe, a minimum of 1.4 bar for the U-pipe and a minimum of 2.8
bar for the double U-pipe. The minimum flow cross-section within the compressed air
connection must be taken into consideration. If the connection is made, e.g. via a quick
release coupler with a flow cross-section of 7.2 mm, an approx. pressure ratio of 1:9 occurs
due to the comparatively large flow cross-section within the pipe system (21.4 mm). If, for
example, 8 bar of pressure is available at the quick release coupler, this would drop to
approx. 0.9 bar due to the larger flow cross-section in the pipe system. In this case, the
pressure would still be sufficient for an I-pipe system, but inadequate for U and double U-pipe
systems.
In plants where contamination of the pipe system/air sampling openings can be expected, the
compressed air supply can be connected via a three-way tap. In plants exposed to heavy
contamination (e.g. recycling plants) an automatic blowing-out system is recommended.
For areas exposed to moderate contamination, in which blowing out is required only at
prolonged intervals, the use of a mobile blowing-out system including refillable compressed
air cylinder is recommended.
7.5 Check the airflow sensor calibration
Check the airflow sensor value with the Diagnostic Software.
Functional principle
During initialization of the connected pipe system, the device saves the measured actual value
of the airflow as a target value via the integrated airflow monitoring. This target value then
serves as a reference value for the additional evaluation of any airflow malfunctions.
NOTICE!
A hardware defect in the detector module is indicated by a permanently-lit detector module
LED.
CAUTION!
Before blowing out the pipe system, disconnect the FAS-420 from the pipe system; otherwise,
the airflow sensor will be damaged.
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Depending on the airflow threshold selected (see "Adapting the airflow sensitivity" in
Section 3.3 Airflow Monitoring, page 36), the current airflow value during operation can
fluctuate around this target value without triggering an airflow malfunction. Only if the
selected airflow threshold is exceeded will the airflow malfunction be reported by the device
and thus transmitted.
Checking the current value
The tolerance range of the selected airflow threshold and the actual and target values are
represented in the diagnostic software. The boundaries (maximum/minimum) always
correspond to a deviation of ±100 % from the saved target value.
Check the deviation of the actual value from the target value. If there is a deviation of > ±70 %,
you should make a prophylactic check of the pipe system (see section below on
"Troubleshooting airflow malfunction").
Dependent on air pressure
To ensure long-term malfunction-free operation of the device, the airflow sensor must be
calibrated according to the air pressure. Only with this type of calibration do low air pressure
fluctuations remain within the monitoring window and thus in the permissible tolerance
range.
Independent of air pressure
If the sensor calibration is carried out independently of air pressure, fluctuations in the air
pressure can cause undesired airflow malfunctions. The calibration of the airflow sensor may
only be carried out this way if you ensure that no fluctuations in air pressure will occur in the
immediate environment.
Troubleshooting airflow malfunction
If the airflow calibration has been executed depending on air pressure and the actual value
still does not lie within the tolerance range of the selected airflow threshold (airflow
malfunction displayed on the device), then a type of disturbance value other than air pressure
or temperature fluctuation exists.
1. In this case, check the pipe system for leaks and obstructions (see Section 6.5 Checking
Airflow Monitoring, page 90, "Troubleshooting").
2. If this check reveals no malfunctions, check the airflow monitoring by connecting the test
pipe and conducting the functional test in accordance with Section 6.6.2 Conducting the
Functional Test.
3. If, during troubleshooting, the pipe network has been changed, the original configuration
of the pipe network must be restored after the troubleshooting has been completed and
the airflow must be recalibrated.
NOTICE!
When the fire panel is in revision mode, the LOGIC·SENS is temporarily deactivated, allowing
the detector modules to be checked quickly and directly.
CAUTION!
If air pressure fluctuations are anticipated in the immediate environment, the airflow sensor
must be calibrated dependent on air pressure (see also Section 3.3 Airflow Monitoring,
page 36).
CAUTION!
In case of a defect in the airflow monitoring, only authorized personnel may replace the
detector module!
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1. Observe the current airflow value during ongoing maintenance or check it at the latest
during the next inspection.
2. If the target value is similar to the previous one, disruptive environmental influences are
the cause of the deviation. If these negative influences on the airflow monitoring cannot
be suppressed, the next less-sensitive threshold should be set.
7.6 Airflow monitoring
A pipe break or pipe obstruction is indicated for each detector module via the flash code of an
LED on the motherboard. Check the airflow monitoring in accordance with
Section 6.5 Checking Airflow Monitoring, page 90.
7.7 Malfunction Transmission
A malfunction is indicated on the FAS-420 and on the fire panel, where applicable.
Proceed in accordance with Section 6.4 Checking Malfunction Transmission, page 90.
7.8 Maintenance Intervals
Maintenance comprises regular inspections and maintenance routines. The smoke aspiration
systems should be checked when commissioned and then quarterly. At each fourth check,
more comprehensive checks should be made, as described below:
– Quarterly test/inspection
– Annual test/maintenance + 4th annual inspection
Inspection
Maintenance and 4th annual inspection
NOTICE!
It is essential that you adhere to the calibration type (air-pressure-dependent or air pressure-
independent) and, if necessary, the values for air pressure, height above sea level, and set
voltage on MP1/MP4 in the test log.
NOTICE!
The diagnostic software can be used to save all stored and current diagnostics data, as well as
the settings made via the RPS programming software as a file. To be able to compare the data
read out, save each file under a different file name.
Measure Further information can be found in...
Visual check Section 7.1 Visual check, page 91
Detector module and alarm transmission Section 7.3 Detector Module and Alarm
Transmission, page 94
Check the pipe system Section 7.4 Pipe system, page 95
Check the airflow sensor calibration Section 7.5 Check the airflow sensor calibration,
page 95
Checking Malfunction Transmission Section 7.7 Malfunction Transmission, page 97
Empty water separator (if necessary) Section 5.8 FAS-ASD-WS Water Separator, page 84
Measure Further information can be found in...
Visual check Section 7.1 Visual check, page 91
Detector module and alarm transmission Section 7.3 Detector Module and Alarm
Transmission, page 94
Check the pipe system Section 7.4 Pipe system, page 95
Check the airflow sensor calibration Section 7.5 Check the airflow sensor calibration,
page 95
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Checking malfunction transmission Section 7.7 Malfunction Transmission, page 97
Checking airflow monitoring Section 7.6 Airflow monitoring, page 97
Empty water separator (if necessary) Section 5.8 FAS-ASD-WS Water Separator, page 84
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8 Appendix
All the permitted detector addresses are indicated in Section 8.1 DIP Switch Settings for
Detector Addresses. See Section 4.3.1 Setting the Detector Address, page 68.
Notes on the tables in Section 8.2 Air Pressure Correction Tables for Airflow Sensor
Calibrationcan be found in Section 6.2.2 Air-Pressure-Dependent Calibration, page 89.
The form in Section 8.5 Commissioning/Service Test Record for Aspirating Smoke Detectors in
the FAS-420 series is required for commissioning (see Section 6 Commissioning, page 87 ff).
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8.1 DIP Switch Settings for Detector Addresses
ADIP ADIP ADIP
87654321 87654321 87654321
000000000 42 00101010 85 01010101
255/
CL
11111111 43 00101011 86 01010110
100000001 44 00101100 87 01010111
200000010 45 00101101 88 01011000
300000011 46 00101110 89 01011001
400000100 47 00101111 90 01011010
500000101 48 00110000 91 01011011
600000110 49 00110001 92 01011100
700000111 50 00110010 93 01011101
800001000 51 00110011 94 01011110
900001001 52 00110100 95 01011111
10 00001010 53 00110101 96 01100000
11 00001011 54 00110110 97 01100001
12 00001100 55 00110111 98 01100010
13 00001101 56 00111000 99 01100011
14 00001110 57 00111001 100 01100100
15 00001111 58 00111010 101 01100101
16 00010000 59 00111011 102 01100110
17 00010001 60 00111100 103 01100111
18 00010010 61 00111101 104 01101000
19 00010011 62 00111110 105 01101001
20 00010100 63 00111111 106 01101010
21 00010101 64 01000000 107 01101011
22 00010110 65 01000001 108 01101100
23 00010111 66 01000010 109 01101101
24 00011000 67 01000011 110 01101110
25 00011001 68 01000100 111 01101111
26 00011010 69 01000101 112 01110000
27 00011011 70 01000110 113 01110001
28 00011100 71 01000111 114 01110010
29 00011101 72 01001000 115 01110011
30 00011110 73 01001001 116 01110100
31 00011111 74 01001010 117 01110101
32 00100000 75 01001011 118 01110110
33 00100001 76 01001100 119 01110111
34 00100010 77 01001101 120 01111000
35 00100011 78 01001110 121 01111001
36 00100100 79 01001111 122 01111010
37 00100101 80 01010000 123 01111011
38 00100110 81 01010001 124 01111100
39 00100111 82 01010010 125 01111101
40 00101000 83 01010011 126 01111110
41 00101001 84 01010100 127 01111111
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ADIP ADIP ADIP
87654321 87654321 87654321
128 10000000 171 10101011 214 11010110
129 10000001 172 10101100 215 11010111
130 10000010 173 10101101 216 11011000
131 10000011 174 10101110 217 11011001
132 10000100 175 10101111 218 11011010
133 10000101 176 10110000 219 11011011
134 10000110 177 10110001 220 11011100
135 10000111 178 10110010 221 11011101
136 10001000 179 10110011 222 11011110
137 10001001 180 10110100 223 11011111
138 10001010 181 10110101 224 11100000
139 10001011 182 10110110 225 11100001
140 10001100 183 10110111 226 11100010
141 10001101 184 10111000 227 11100011
142 10001110 185 10111001 228 11100100
143 10001111 186 10111010 229 11100101
144 10010000 187 10111011 230 11100110
145 10010001 188 10111100 231 11100111
146 10010010 189 10111101 232 11101000
147 10010011 190 10111110 233 11101001
148 10010100 191 10111111 234 11101010
149 10010101 192 11000000 235 11101011
150 10010110 193 11000001 236 11101100
151 10010111 194 11000010 237 11101101
152 10011000 195 11000011 238 11101110
153 10011001 196 11000100 239 11101111
154 10011010 197 11000101 240 11110000
155 10011011 198 11000110 241 11110001
156 10011100 199 11000111 242 11110010
157 10011101 200 11001000 243 11110011
158 10011110 201 11001001 244 11110100
159 10011111 202 11001010 245 11110101
160 10100000 203 11001011 246 11110110
161 10100001 204 11001100 247 11110111
162 10100010 205 11001101 248 11111000
163 10100011 206 11001110 249 11111001
164 10100100 207 11001111 250 11111010
165 10100101 208 11010000 251 11111011
166 10100110 209 11010001 252 11111100
167 10100111 210 11010010 253 11111101
168 10101000 211 11010011 254 11111110
169 10101001 212 11010100
170 10101010 213 11010101
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8.2 Air Pressure Correction Tables for Airflow Sensor Calibration
8.2.1 Equipment protection
Height [m
above sea level]
Air pressure [hPa] at a height of
0 973 978 983 988 993 998 1003 1008 1013 1018 1023 1028 1033 1038 1043
50 967 972 977 982 987 992 997 1002 1007 1012 1017 1022 1027 1032 1037
100 961 966 971 976 981 986 991 996 1001 1006 1011 1016 1021 1026 1031
150 954 959 964 969 974 979 984 989 994 999 1004 1009 1014 1019 1024
200 948 953 958 963 968 973 978 983 988 993 998 1003 1008 1013 1018
250 942 947 952 957 962 967 972 977 982 987 992 997 1002 1007 1012
300 936 941 946 951 956 961 966 971 976 981 986 991 996 1001 1006
350 930 935 940 945 950 955 960 965 970 975 980 985 990 995 1000
400 924 929 934 939 944 949 954 959 964 969 974 979 984 989 994
450 918 923 928 933 938 943 948 953 958 963 968 973 978 983 988
500 912 917 922 927 932 937 942 947 952 957 962 967 972 977 982
550 906 911 916 921 926 931 936 941 946 951 956 961 966 971 976
600 900 905 910 915 920 925 930 935 940 945 950 955 960 965 970
650 894 899 904 909 914 919 924 929 934 939 944 949 954 959 964
700 888 893 898 903 908 913 918 923 928 933 938 943 948 953 958
750 882 887 892 897 902 907 912 917 922 927 932 937 942 947 952
800 877 882 887 892 897 902 907 912 917 922 927 932 937 942 947
850 871 876 881 886 891 896 901 906 911 916 921 926 931 936 941
900 865 870 875 880 885 890 895 900 905 910 915 920 925 930 935
950 860 865 870 875 880 885 890 895 900 905 910 915 920 925 930
1000 854 859 864 869 874 879 884 889 894 899 904 909 914 919 924
1050 848 853 858 863 868 873 878 883 888 893 898 903 908 913 918
1100 843 848 853 858 863 868 873 878 883 888 893 898 903 908 913
1150 837 842 847 852 857 862 867 872 877 882 887 892 897 902 907
1200 832 837 842 847 852 857 862 867 872 877 882 887 892 897 902
1250 827 832 837 842 847 852 857 862 867 872 877 882 887 892 897
1300 821 826 831 836 841 846 851 856 861 866 871 876 881 886 891
1350 816 821 826 831 836 841 846 851 856 861 866 871 876 881 886
1400 810 815 820 825 830 835 840 845 850 855 860 865 870 875 880
1450 805 810 815 820 825 830 835 840 845 850 855 860 865 870 875
1500 800 805 810 815 820 825 830 835 840 845 850 855 860 865 870
1550 795 800 805 810 815 820 825 830 835 840 845 850 855 860 865
1600 789 794 799 804 809 814 819 824 829 834 839 844 849 854 859
1650 784 789 794 799 804 809 814 819 824 829 834 839 844 849 854
1700 779 784 789 794 799 804 809 814 819 824 829 834 839 844 849
1750 774 779 784 789 794 799 804 809 814 819 824 829 834 839 844
1800 769 774 779 784 789 794 799 804 809 814 819 824 829 834 839
1850 764 769 774 779 784 789 794 799 804 809 814 819 824 829 834
1900 759 764 769 774 779 784 789 794 799 804 809 814 819 824 829
1950 754 759 764 769 774 779 784 789 794 799 804 809 814 819 824
2000 749 754 759 764 769 774 779 784 789 794 799 804 809 814 819
2050 744 749 754 759 764 769 774 779 784 789 794 799 804 809 814
2100 739 744 749 754 759 764 769 774 779 784 789 794 799 804 809
2150 734 739 744 749 754 759 764 769 774 779 784 789 794 799 804
2200 729 734 739 744 749 754 759 764 769 774 779 784 789 794 799
2250 725 730 735 740 745 750 755 760 765 770 775 780 785 790 795
2300 720 725 730 735 740 745 750 755 760 765 770 775 780 785 790
2350 715 720 725 730 735 740 745 750 755 760 765 770 775 780 785
2400 710 715 720 725 730 735 740 745 750 755 760 765 770 775 780
Calibration to
[V]
0.50 0.60 0.70 0.80 0.90 1.00 1.10 1.20 1.30 1.40 1.50 1.60 1.70 1.80 1.90
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8.2.2 Space Protection (I-pipe System)
Height [m
above sea level]
Air pressure [hPa] at a height of
0 973 978 983 988 993 998 1003 1008 1013 1018 1023 1028 1033 1038 1043
50 967 972 977 982 987 992 997 1002 1007 1012 1017 1022 1027 1032 1037
100 961 966 971 976 981 986 991 996 1001 1006 1011 1016 1021 1026 1031
150 954 959 964 969 974 979 984 989 994 999 1004 1009 1014 1019 1024
200 948 953 958 963 968 973 978 983 988 993 998 1003 1008 1013 1018
250 942 947 952 957 962 967 972 977 982 987 992 997 1002 1007 1012
300 936 941 946 951 956 961 966 971 976 981 986 991 996 1001 1006
350 930 935 940 945 950 955 960 965 970 975 980 985 990 995 1000
400 924 929 934 939 944 949 954 959 964 969 974 979 984 989 994
450 918 923 928 933 938 943 948 953 958 963 968 973 978 983 988
500 912 917 922 927 932 937 942 947 952 957 962 967 972 977 982
550 906 911 916 921 926 931 936 941 946 951 956 961 966 971 976
600 900 905 910 915 920 925 930 935 940 945 950 955 960 965 970
650 994 899 904 909 914 919 924 929 934 939 944 949 954 959 964
700 888 893 898 903 908 913 918 923 928 933 938 943 948 953 958
750 882 887 892 897 902 907 912 917 922 927 932 937 942 947 952
800 877 882 887 892 897 902 907 912 917 922 927 932 937 942 947
850 871 876 881 886 891 896 901 906 911 916 921 926 931 936 941
900 865 870 875 880 885 890 895 900 905 910 915 920 925 930 935
950 860 865 870 875 880 885 890 895 900 905 910 915 920 925 930
1000 854 859 864 869 874 879 884 889 894 899 904 909 914 919 924
1050 848 853 858 863 868 873 878 883 888 893 898 903 908 913 918
1100 843 848 853 858 863 868 873 878 883 888 893 898 903 908 913
1150 837 842 847 852 857 862 867 872 877 882 887 892 897 902 907
1200 832 837 842 847 852 857 862 867 872 877 882 887 892 897 902
1250 827 832 837 842 847 852 857 862 867 872 877 882 887 892 897
1300 821 826 831 836 841 846 851 856 861 866 871 876 881 886 891
1350 816 821 826 831 836 841 846 851 856 861 866 871 876 881 886
1400 810 815 820 825 830 835 840 845 850 855 860 865 870 875 880
1450 805 810 815 820 825 830 835 840 845 850 855 860 865 870 875
1500 800 805 810 815 820 825 830 835 840 845 850 855 860 865 870
1550 795 800 805 810 815 820 825 830 835 840 845 850 855 860 865
1600 789 794 799 804 809 814 819 824 829 834 839 844 849 854 859
1650 784 789 794 799 804 809 814 819 824 829 834 839 844 849 854
1700 779 784 789 794 799 804 809 814 819 824 829 834 839 844 849
1750 774 779 784 789 794 799 804 809 814 819 824 829 834 839 844
1800 769 774 779 784 789 794 799 804 809 814 819 824 829 834 839
1850 764 769 774 779 784 789 794 799 804 809 814 819 824 829 834
1900 759 764 769 774 779 784 789 794 799 804 809 814 819 824 829
1950 754 759 764 769 774 779 784 789 794 799 804 809 814 819 824
2000 749 754 759 764 769 774 779 784 789 794 799 804 809 814 819
2050 744 749 754 759 764 769 774 779 784 789 794 799 804 809 814
2100 739 744 749 754 759 764 769 774 779 784 789 794 799 804 809
2150 734 739 744 749 754 759 764 769 774 779 784 789 794 799 804
2200 729 734 739 744 749 754 759 764 769 774 779 784 789 794 799
2250 725 730 735 740 745 750 755 760 765 770 775 780 785 790 795
2300 720 725 730 735 740 745 750 755 760 765 770 775 780 785 790
2350 715 720 725 730 735 740 745 750 755 760 765 770 775 780 785
2400 710 715 720 725 730 735 740 745 750 755 760 765 770 775 780
Calibration to
[V]
0.58 0.67 0.76 0.85 0.94 1.03 1.12 1.21 1.30 1.39 1.48 1.57 1.66 1.75 1.84
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8.2.3 Space Protection (U, Double U, and H-pipe System)
Height [m
above sea level]
Air pressure [hPa] at a height of
0 973 978 983 988 993 998 1003 1008 1013 1018 1023 1028 1033 1038 1043
50 967 972 977 982 987 992 997 1002 1007 1012 1017 1022 1027 1032 1037
100 961 966 971 976 981 986 991 996 1001 1006 1011 1016 1021 1026 1031
150 954 959 964 969 974 979 984 989 994 999 1004 1009 1014 1019 1024
200 948 953 958 963 968 973 978 983 988 993 998 1003 1008 1013 1018
250 942 947 952 957 962 967 972 977 982 987 992 997 1002 1007 1012
300 936 941 946 951 956 961 966 971 976 981 986 991 996 1001 1006
350 930 935 940 945 950 955 960 965 970 975 980 985 990 995 1000
400 924 929 934 939 944 949 954 959 964 969 974 979 984 989 994
450 918 923 928 933 938 943 948 953 958 963 968 973 978 983 988
500 912 917 922 927 932 937 942 947 952 957 962 967 972 977 982
550 906 911 916 921 926 931 936 941 946 951 956 961 966 971 976
600 900 905 910 915 920 925 930 935 940 945 950 955 960 965 970
650 994 899 904 909 914 919 924 929 934 939 944 949 954 959 964
700 888 893 898 903 908 913 918 923 928 933 938 943 948 953 958
750 882 887 892 897 902 907 912 917 922 927 932 937 942 947 952
800 877 882 887 892 897 902 907 912 917 922 927 932 937 942 947
850 871 876 881 886 891 896 901 906 911 916 921 926 931 936 941
900 865 870 875 880 885 890 895 900 905 910 915 920 925 930 935
950 860 865 870 875 880 885 890 895 900 905 910 915 920 925 930
1000 854 859 864 869 874 879 884 889 894 899 904 909 914 919 924
1050 848 853 858 863 868 873 878 883 888 893 898 903 908 913 918
1100 843 848 853 858 863 868 873 878 883 888 893 898 903 908 913
1150 837 842 847 852 857 862 867 872 877 882 887 892 897 902 907
1200 832 837 842 847 852 857 862 867 872 877 882 887 892 897 902
1250 827 832 837 842 847 852 857 862 867 872 877 882 887 892 897
1300 821 826 831 836 841 846 851 856 861 866 871 876 881 886 891
1350 816 821 826 831 836 841 846 851 856 861 866 871 876 881 886
1400 810 815 820 825 830 835 840 845 850 855 860 865 870 875 880
1450 805 810 815 820 825 830 835 840 845 850 855 860 865 870 875
1500 800 805 810 815 820 825 830 835 840 845 850 855 860 865 870
1550 795 800 805 810 815 820 825 830 835 840 845 850 855 860 865
1600 789 794 799 804 809 814 819 824 829 834 839 844 849 854 859
1650 784 789 794 799 804 809 814 819 824 829 834 839 844 849 854
1700 779 784 789 794 799 804 809 814 819 824 829 834 839 844 849
1750 774 779 784 789 794 799 804 809 814 819 824 829 834 839 844
1800 769 774 779 784 789 794 799 804 809 814 819 824 829 834 839
1850 764 769 774 779 784 789 794 799 804 809 814 819 824 829 834
1900 759 764 769 774 779 784 789 794 799 804 809 814 819 824 829
1950 754 759 764 769 774 779 784 789 794 799 804 809 814 819 824
2000 749 754 759 764 769 774 779 784 789 794 799 804 809 814 819
2050 744 749 754 759 764 769 774 779 784 789 794 799 804 809 814
2100 739 744 749 754 759 764 769 774 779 784 789 794 799 804 809
2150 734 739 744 749 754 759 764 769 774 779 784 789 794 799 804
2200 729 734 739 744 749 754 759 764 769 774 779 784 789 794 799
2250 725 730 735 740 745 750 755 760 765 770 775 780 785 790 795
2300 720 725 730 735 740 745 750 755 760 765 770 775 780 785 790
2350 715 720 725 730 735 740 745 750 755 760 765 770 775 780 785
2400 710 715 720 725 730 735 740 745 750 755 760 765 770 775 780
Calibration to
[V]
0.54 0.63 0.73 0.82 0.92 1.01 1.11 1.20 1.30 1.40 1.49 1.59 1.68 1.78 1.87
FAS-420 Aspirating Smoke Detector LSN
"improved version" Appendix | en 105
Bosch Sicherheitssysteme GmbH Operation Guide F.01U.029.275 | 5.0 | 2010.11
8.3 Planning without filter
8.3.1 Without any other pipe accessories
8.3.2 With water separator
M = module S = sensitivity (% LT/m) MA = main alarm PA = pre-alarm
Number of openings
DM- S 12345678910111213141516182021222432
01
(05)
0.015 (0.05) MA AAAAAAAAAAAAAAAAAAAAAA
0.03 (0.1)MAAAAAAAAAAAAAAAAAAAAAAB
0.06 (0.2)MAAAAAAAAAAAAABBBBBBBBBC
0.12 (0.4)MAAAAAAABBBBBBBBBCCCCCC
10
(25)
0.1 (0.25)MAAAAAAAAAABBBBBBBBBBBBB
0.2 (0.5)MAAAAABBBBBBBBCCCCCCCCC
0.4 (1) MAAABBBBCCCCCC
0.8 (2) MA A B B C C C
50
(80)
0.313 (0.5)PAAAAABBBBBBBBCCCCCCCCCC
0.5 (0.8)MAAAABBBBCCCCCCCC
0.687 (1.1)PAAABBBCCCCC
1.0 (1.6)MAABBCCCC
Number of openings
Pipe shape UFans 12345678910111213141516182021222432
I 6.5 77 77 77 77 77 77 77 77
6.9 777777777777777776
≥9 100 100 100 100 100 100 100 100 100 100 100 100 100
U 6.5 120 120 120 120 120 120 120 120 120 120 120 120
6.9 120 120 120 120 120 120 120 120 120 120 120 120 120 120
≥9 150 150 150 150 150 150 150 150 150 150 150 150 150 150 150 150 150 150
M 6.5 170 170 170 170 170 170 170 170 170 170 170 170
6.9 170 170 170 170 170 170 170 170 170 170 170 170 160 160 160
≥9 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180
Double U 6.5 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180
6.9 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180
≥9 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200
Quad. U
(1 DM)
6.5
6.9
≥9 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300
Number of openings
Pipe shape UFans 12345678910111213141516182021222432
I 6.5 60 60 60 60 60 60 60
6.9 60606060606060
≥9 80808080808080808080
U 6.5 100 100 100 100 100 100 100 100 100 100
6.9 110 110 110 110 110 110 110 110 110 110 110 110
≥9 110 110 110 110 110 110 110 110 110 110 110 110 110 110 110 110
M 6.5 100 100 100 100 100 100 100 100 100 100 100 100
6.9 110 110 110 110 110 110 110 110 110 110 110 110 110 110 110
≥9 160 160 160 160 160 160 160 160 160 160 160 160 160 160 160 160 160
Double U 6.5 140 140 140 140 140 140 140 140 140 140 140 140
6.9 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140
≥9 160 160 160 160 160 160 160 160 160 160 160 160 160 160 160 160
106 en | Appendix FAS-420 Aspirating Smoke Detector LSN
"improved version"
F.01U.029.275 | 5.0 | 2010.11 Operation Guide Bosch Sicherheitssysteme GmbH
8.3.3 With detonation safety barrier
Number of openings
Pipe shape UFans 12345678910111213141516182021222432
I 6.5 46 46 46 46
6.9 4646464638
≥9 686868686868
U 6.5 60 60 60 60 60 60
6.9 606060606060
≥9 6060606060606060
M 6.5 80 80 80 80 80 80
6.9 808080808080707070
≥9 120 120 120 120 120 120 120 120 120
Double U 6.5 80 80 80 80
6.9 8080808080808080
≥9 100 100 100 100 100 100 100 100
FAS-420 Aspirating Smoke Detector LSN
"improved version" Appendix | en 107
Bosch Sicherheitssysteme GmbH Operation Guide F.01U.029.275 | 5.0 | 2010.11
8.4 Planning with air filter
8.4.1 Without any other pipe accessories
8.4.2 With water separator
M = module S = sensitivity (% LT/m) MA = main alarm PA = pre-alarm
Number of openings
DM- S 12345678910111213141516182021222432
01
(05)
0.015 (0.05)MAAAAAAAAAAAAAAAAAAAAAA
0.03 (0.1)MAAAAAAAAAAAAAAAAAAABBB
0.06 (0.2)MAAAAAAAAAAABBBBBBBBBBB
0.12 (0.4)MAAAAAABBBBBBBBCCCCCCCC
10
(25)
0.1 (0.25)MAAAAAAAAABBBBBBBBBBCCC
0.2 (0.5)MAAAAABBBBBBC C CCCCCC
0.4 (1)MAAABBBCCCCC
0.8 (2) MA A B C C C
50
(80)
0.313 (0.5) PA AAAABBBBBBCCCCCCCC
0.5 (0.8)MAA ABBBBCCCCCCC
0.687 (1.1) PA A B B B CCCCC
1.0 (1.6) MA A B B C C C
Number of openings
Pipe shape UFans 12345678910111213141516182021222432
I 6.5 70 70 70 70 70 70 70
6.9 7070707070707070
≥9 100 100 100 100 100 100 100 100 100 100 90 90
U 6.5 120 120 120 120 120 120 120 120 120 120 120 120
6.9 120 120 120 120 120 120 120 120 120 120 120 120 120 120
≥9 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140
M 6.5 160 160 160 160 160 160 160 160 160 160 160 160
6.9 160 160 160 160 160 160 160 160 160 160 160 160 160 160 160
≥9 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180 180
Double U 6.5 160 160 160 160 160 160 160 160 160 160 160 160 160 160 160 160
6.9 170 170 170 170 170 170 170 170 170 170 170 170 170 170 170 170 170 170
≥9 190 190 190 190 190 190 190 190 190 190 190 190 190 190 190 190 190 190 190 190 190
Number of openings
Pipe shape UFans 12345678910111213141516182021222432
I 6.5 60 60 60 60 60 60
6.9 60606060606060
≥9 80808080808080808080
U 6.5 100 100 100 100 100 100 100 100 100 100
6.9 110 110 110 110 110 110 110 110 110 110 110 110
≥9 110 110 110 110 110 110 110 110 110 110 110 110 110 110 110 110
M 6.5 100 100 100 100 100 100 100 100 100 100 100 100
6.9 110 110 110 110 110 110 110 110 110 110 110 110 110 110 110
≥9 160 160 160 160 160 160 160 160 160 160 160 160 160 160 160 160 160
Double U 6.5 140 140 140 140 140 140 140 140 140 140 140 140
6.9 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140 140
≥9 160 160 160 160 160 160 160 160 160 160 160 160 160 160 160 160
108 en | Appendix FAS-420 Aspirating Smoke Detector LSN
"improved version"
F.01U.029.275 | 5.0 | 2010.11 Operation Guide Bosch Sicherheitssysteme GmbH
8.4.3 With detonation safety barrier
Number of openings
Pipe shape UFans 12345678910111213141516182021222432
I 6.5 46 46 46 46
6.9 4646464638
≥9 686868686868
U 6.5 60 60 60 60 60 60
6.9 606060606060
≥9 6060606060606060
M 6.5 80 80 80 80 80 80
6.9 808080808080707070
≥9 120 120 120 120 120 120 120 120 120
Double U 6.5 80 80 80 80
6.9 8080808080808080
≥9 100 100 100 100 100 100 100 100
FAS-420 Aspirating Smoke Detector LSN
"improved version" Appendix | en 109
Bosch Sicherheitssysteme GmbH Operation Guide F.01U.029.275 | 5.0 | 2010.11
8.5 Commissioning/Service Test Record for Aspirating Smoke
Detectors in the FAS-420 series
Legend: + in order / - not in order
Date: ............. Place: ...................................... Issuer: ......................................... Signature:...............................
Device number
Serial Number
Measurement value/set value
Commissioning
Visual check+/-
Negative pressure[Pa]
Sensitivity[%/m]
Alarm delay[s]
Malfunction delay[min]
Activation threshold[I/II/III/iV]
Save malfunction[yes/no]
LOGIC SENS[yes/no]
Air-pressure-dependent calibration[yes/no]
Air-pressure-independent calibration[yes/no]
Height[m above sea level]
Air pressure[hPa]
Temperature[°C]
Obstruction malfunction
LED flashing+/-
Relay fails after delay+/-
Signal transmission to fire panel+/-
Cause eliminated, LED off+/-
Relay activates after drop below threshold+/-
Cause eliminated, LED saved +/-
Relay remains off+/-
Breakage malfunction
LED flashing+/-
Relay fails after delay +/-
Signal transmission to fire panel+/-
Cause eliminated, LED off+/-
Relay activates after drop below threshold+/-
Cause eliminated, LED saved +/-
Relay remains off+/-
Info alarm
LED flashing+/-
Relay activates after delay+/-
Signal transmission to fire panel+/-
LED saved+/-
Relay saved+/-
Pre-alarm
LED flashing+/-
Relay activates after delay+/-
Signal transmission to fire panel+/-
LED saved+/-
Relay saved+/-
Main alarm
LED flashing+/-
Relay activates after delay+/-
Signal transmission to fire panel+/-
LED saved+/-
Relay saved+/-
110 en | Index FAS-420 Aspirating Smoke Detector LSN
"improved version"
F.01U.029.275 | 5.0 | 2010.11 Operation Guide Bosch Sicherheitssysteme GmbH
Index
Symbols
"Improved version" LSN mode 66
A
Activation threshold 36, 71, 89
Activation thresholds - M-pipe system 50
Air conditioning units 10
Air filter 13, 20, 30, 79, 81, 95
Air sampling opening 9, 12, 21, 27, 33, 76
Air-conditioning duct 10, 58, 78
Air-conditioning unit 58, 78
Airflow fault delay 71, 89
Airflow initialization 14, 66, 86, 91
Airflow malfunction 14, 71, 74, 84, 88, 95, 96
Airflow monitoring 9, 13, 36, 88
Airflow sensitivity 36
Airflow sensor 12, 13, 36, 86
Airflow sensors 9
Alarm 8, 13, 87
Alarm current 62
Alarm delay 71, 89
Alarm transfer 87
Area monitoring 10, 20, 22
Aspiration boring 10, 76
Aspiration reducing clips 21
Aspiration reducing film sheet 9, 21, 27, 76
Asymmetrical structure 33
B
Bends 35, 74
Blast air 20, 81, 95
Blowing out 20, 21, 82, 95
Bore distances 68
Branch length 34
C
Calibrating the airflow sensor 14, 86, 95, 102
Charging current 62
Collective fault 86
Compressed air 81
Concealed installation 22
Current calculation 62
D
Delay 13, 14
Detector address 65
Detonation safety barrier 13, 20, 25
Device Mounting 19
Device mounting 26, 67, 91
DIAG diagnostic software 9, 15, 18, 26, 72, 85, 86, 88,
89, 90
Digital pressure gauge 89
Display board 65, 73
Double U-pipe 34
Double U-pipe - simplified planning 55
Double U-pipe - single-hole monitoring 50
Double U-pipe for space protection 45
Double U-pipe system 95
Double U-pipe system activation thresholds 51
Dual-detector dependency 8, 35, 71
Dual-zone dependency 8, 71
Duct cross-section 58, 60
E
End cap 20, 61, 75
Equipment monitoring 11, 12, 20, 34
F
Fault indication 14, 88
Filter change 79
Fittings 12, 20, 74, 85
Flame filter 25
Flash code 14, 88, 91, 97
Flow resistance 35, 74
Flow speed 58, 60
Flow-init button 73, 86
FPA-5000 diagnostics data 71, 85
Functional test 90
H
High-speed units 58
I
I pipe system activation thresholds 47
Info alarm 8, 17
Installation material 68, 79
I-pipe system 35, 95
I-pipe system - simplified planning 52
I-pipe system - single-hole monitoring 46
I-pipe system? for space protection 43
L
Local SecurityNetwork (LSN) "improved version" 8
Low-speed units 58
LSN configuration 71
LSN connection 15, 70
M
Marking tape 9, 21, 27, 76
Monitoring window 14, 96
M-pipe - simplified planning 54
M-pipe system 35
M-pipe system - single-hole monitoring 49
M-pipe system for space protection 44
O
Obstruction 9, 13, 21, 88, 91, 96, 97
P
Pipe breakage 9, 13, 88, 91, 97
Pipe elbow 20, 24, 26, 35, 74, 82
Pipe system components 20, 26
Planning for high-rise warehouses 56
Planning limits 38
Plastic clip 21, 27, 75
Pore width 24
Pre-alarm 8, 17
Pressure area 23, 37, 59
Protection category 28, 29
Q
Quadruple U-pipe 34
R
Remote indicator 18, 72
Reset 14, 18
Response sensitivity 8, 13, 37
RPS 8
RPS (Remote Programming Software) 64, 71, 89, 90
FAS-420 Aspirating Smoke Detector LSN
"improved version" Index | en 111
Bosch Sicherheitssysteme GmbH Operation Guide F.01U.029.275 | 5.0 | 2010.11
S
Single-hole monitoring - double U-pipe system 50
Single-hole monitoring - I-pipe system 46
Single-hole monitoring - M-pipe system 49
Single-hole monitoring - U-pipe system 47
Sintered metal filter 24, 26, 30
Sound power level 28
sound power level 29
Special planning 9, 33
Standby current 62
Symmetrical structure 33
T
Technical data 29
Technical specifications 28
Temperature range 28, 29
T-fitting 20, 22, 77
Three-way tap 20, 31, 81, 95
Tightness of the pipe system 75, 85, 96
Transport speed 9, 35, 66
Troubleshooting 88
Two alarm stages 8, 36
U
Unit Mounting 15
U-pipe system 33, 95
U-pipe system - simplified planning 53
U-pipe system activation thresholds 48
U-pipe system for space protection? 43
W
Water separator 13, 20, 24, 26, 30
Bosch Sicherheitssysteme GmbH
Werner-von-Siemens-Ring 10
D-85630 Grasbrunn
Germany
www.boschsecurity.com
© Bosch Sicherheitssysteme GmbH, 2010

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