Edwards LaserSense Nano Installation Handbook
LaserSense Nano
A
spirating Smoke Detector
Installers Handbook
P/N 9-14564 (EN) • REV 02 • ISS 11ABR13
Copyright © 2013 UTC Fire & Security. All rights reserved.
Manufacture
r
Kidde Products Limited
Unit 2, Blair Way, Dawdon
Seaham, County Durham
SR7 7PP
United Kingdom
Certification
0832
0832-CPD-1312
EN 54-20: 2006
Aspirating smoke detectors for fire detection and fire alarm systems
for buildings.
Class A, B, and C
Technical data: See INF48022 and INF48023 held by the
manufacturer.
Contact information For contact information, see www.airsensetechnology.com.
LaserSense Nano Aspirating Smoke Detector Installers Handbook i
Content
Important information ii
Advisory messages iii
EN 54-20 compliance iv
Chapter 1 Product and component descriptions 1
Introduction 2
Available software for the detector 2
Specifications 3
Indicators 4
Chapter 2 Installation and configuration 7
Introduction 8
Antistatic precautions 8
System design 9
Installation 16
Configuration 23
Chapter 3 Commissioning 27
Introduction 28
Precommissioning preparation 28
Commissioning checklist 28
Chapter 4 Troubleshooting 33
Troubleshooting the detector 34
Chapter 5 Maintenance 37
Introduction 38
Scheduled maintenance 38
Maintenance procedures 39
Appendix A Communications card and APIC 43
Optional communications card 44
Optional APIC 47
Glossary 49
Index 51
ii LaserSense Nano Aspirating Smoke Detector Installers Handbook
Important information
Regulatory information
This equipment is Class III as defined in EN 60950 (i.e., this equipment is
designed to operate from Safety Extra Low Voltages and does not generate any
hazardous voltages).
As this equipment is part of a fire detection system, input power should be
supplied from an approved power supply conforming to EN 54-4 or UL/ULC and
FM standards.
This product has been designed to meet the following requirements:
• NFPA 72 National Fire Alarm and Signaling Code
• UL 268 Smoke Detectors for Fire Alarm Signaling Systems
• UL 268A Smoke Detectors for Duct Applications
• UL 864 Control Units for Fire Protective Signaling Systems
• CAN/ULC-S524 Installation of Fire Alarm Systems
• ULC-S527 Control Units for Fire Alarm Systems
• CAN/ULC-S529 Smoke Detectors for Fire Alarm Systems
System reacceptance test after reprogramming (UL/ULC and FM): To ensure
proper system operation, this system must be retested in accordance with
NFPA 72 after any programming change. Reacceptance testing is also required
after any addition or deletion of system components, and after any modification,
repair, or adjustment to system hardware or wiring.
Limitation of liability
To the maximum extent permitted by applicable law, in no event will UTCFS be
liable for any lost profits or business opportunities, loss of use, business
interruption, loss of data, or any other indirect, special, incidental, or
consequential damages under any theory of liability, whether based in contract,
tort, negligence, product liability, or otherwise. Because some jurisdictions do not
allow the exclusion or limitation of liability for consequential or incidental
damages the preceding limitation may not apply to you. In any event the total
liability of UTCFS shall not exceed the purchase price of the product. The
foregoing limitation will apply to the maximum extent permitted by applicable law,
regardless of whether UTCFS has been advised of the possibility of such
damages and regardless of whether any remedy fails of its essential purpose.
Installation in accordance with this manual, applicable codes, and the instructions
of the authority having jurisdiction is mandatory.
While every precaution has been taken during the preparation of this manual to
ensure the accuracy of its contents, UTCFS assumes no responsibility for errors
or omissions.
LaserSense Nano Aspirating Smoke Detector Installers Handbook iii
Advisory messages
Advisory messages alert you to conditions or practices that can cause unwanted
results. The advisory messages used in this document are shown and described
below.
WARNING: Warning messages advise you of hazards that could result in injury
or loss of life. They tell you which actions to take or to avoid in order to prevent
the injury or loss of life.
Caution: Caution messages advise you of possible equipment damage. They tell
you which actions to take or to avoid in order to prevent the damage.
Note: Note messages advise you of the possible loss of time or effort. They
describe how to avoid the loss. Notes are also used to point out important
information that you should read.
Product Symbols
This symbol appears on the main board of the unit and indicates that the
board contains static sensitive components.
This label is located on the laser chamber at the bottom right of the open
detector and signifies that the unit is a Class 1 Laser product as specified
in IEC 60825-1. The unit incorporates a Class 3B embedded laser which
must not be removed from the detector, as retinal damage may result if
the laser beam enters the eye.
This symbol indicates the Safety ground studs. These are for grounding
cable screens, etc., and should not be connected to 0V or signal earth.
iv LaserSense Nano Aspirating Smoke Detector Installers Handbook
EN 54-20 compliance
The installation must be designed using PipeCAD software, which is provided
free on the CD shipped with each detector. After designing the installation
including pipes, endcaps and sampling holes, enter the detector type. To select
the detector type, select Options, select Calculation options, and then select the
detector from the Type drop-down list.
Select Options > Calculate or click on the calculator icon. The software will
prompt you to choose from Use set hole sizes, Best flow balance, or Max.
permissible transit time. Select the appropriate option, and then click OK. The
results for each pipe (View > Results) show calculations for each sampling hole
on the pipe with the nearest to the detector at the top of the screen, and the
endcap hole at the bottom.
The classification of each sampling device configuration and associated
sensitivity settings are determined by the column headed Hole sensitivity %
obs/m, which shows the predicted sensitivity for each hole. For the installation to
comply with EN 54-20 depending on the class of installation, each sampling hole
must be no less sensitive than the following:
Class A: 0.80% obs/m
Class B: 1.66% obs/m
Class C: 7.54% obs/m
The calculation can be further refined by leaving a working detector in the
protected area for at least 24 hours at the intended alarm factor for the
installation (this could be done before or after installation). The detector
sensitivity can be read from the Sensitivity figure on the histogram screen of the
Remote software supplied with each detector. Click Options > Calculation options
to open the Hole calculation options dialog box. Enter the sensitivity value
obtained from the practical test, and then click OK. The new calculated value will
use the real sensitivity from the practical test.
The PipeCAD software will determine the classification of any used configuration.
Commissioning and periodic system tests must involve smoke tests to verify that
the system performs as expected and enters Fire 1 alarm within the time
determined by PipeCAD from the farthest hole. The detector sensitivity must also
be inspected to ensure it has not radically fallen from the installed figure. If it has
changed for any reason, the new figure must be re-entered into PipeCAD and the
recalculated hole sensitivities must be confirmed to be within the class limits
shown above.
LaserSense Nano Aspirating Smoke Detector Installers Handbook 1
Chapter 1
Product and component
descriptions
Summary
This chapter provides descriptions of the detector features, specifications, and
controls and indicators.
Content
Introduction 2
Available software for the detector 2
Specifications 3
Indicators 4
Inside the detector 5
Chapter 1: Product and component descriptions
2 LaserSense Nano Aspirating Smoke Detector Installers Handbook
Introduction
This aspirating detector is a highly sophisticated next generation high sensitivity
aspirating smoke detection product that provides all the benefits of air sampling
high sensitivity smoke detection, including very early warning. Designed for easy
installation and commissioning, the detector incorporates a patented artificial
intelligence known as ClassiFire, which allows the detector to configure itself to
optimum sensitivity, alarm thresholds, and minimum nuisance alarms for various
environments.
This detector operates by drawing air from a protected space via a supervised
piping network in relatively small areas. The sampled air is passed through a
dust separator to remove dust and dirt before entering the laser detection
chamber. State-of-the-art electronics are used to analyse the sampled air and
generate a signal representing the level of smoke present.
ClassiFire intelligence also monitors the detector chamber and dust separator for
contamination, continually adjusting the appropriate operating parameters to
counteract the negative effects of any contamination. Aspirating smoke detectors
are unique in being able to provide a consistent level of protection in a very wide
range of environments by continuously making minor adjustments to sensitivity.
The detector can easily be installed without any specialised tools or software.
Available software for the detector
The Remote Control and the SenseNET software packages are available to
program the detector.
• Remote Control software: Provided free of charge with every detector, this
software package enables the user to set up and configure the programmable
functions of one or more detectors from a computer connected via an RS-232
serial cable.
• SenseNET software: SenseNET software is used to configure and manage a
large network of detectors with a simple, streamlined graphical user interface
from a computer connected to a detector or command module via an RS-232
serial cable to RS-485 converter interface.
Chapter 1: Product and component descriptions
LaserSense Nano Aspirating Smoke Detector Installers Handbook 3
Specifications
Caution: This equipment is only to be used in accordance with these
specifications. Failure to operate the equipment as specified may cause damage
to the unit, injury, or property damage.
Table 1: Specifications
Specification Value
SELV rating EN 60950 Class III
Supply Voltage 21.60 to 26.40 (UL rated 22.25 to 26.40 VDC)
Current consumption 350 mA
Electrical Safety Complies with EN 610190-1
Size 190 W × 230 H × 110 D mm
(7.5 W × 9.0H × 4.3 D in.)
Weight 1.2 kg (2.65 lbs.)
Operating temperature range −10 to +60ºC (EN 54-20)
32 to 100°F (0 to 38°C) (UL 268, CAN/ULC-S529, FM)
Operating humidity range 0 to 90% relative humidity, noncondensing
EN 61010-1 Pollution degree 1
EN 61010-1 Installation category II
IP rating IP50
Sensitivity range
(%obs/ft.)
(%obs/m)
Min. = 7.62%, Max. = 0.122% FSD
Min. = 25%, Max. = 0.4% FSD
Maximum sensitivity resolution 0.4% obs/m (0.12% obs/ft.)
Detection principle Laser light forward scattering mass detection
Maximum number of sampling holes Class A: 2
Class B: 4
Class C: 10
Maximum sampling pipe length 50 m (164 ft.)
Pipe inlets 2 (sampling and exhaust pipes)
Alarm / fault relays Pre-Alarm / Alarm / Fault
Relay contact rating (changeover) 1 A at 24 VDC (resistive load)
Programming Internal DIP switches
PC interrogation Via optional communications card
APIC compatible Yes
Chapter 1: Product and component descriptions
4 LaserSense Nano Aspirating Smoke Detector Installers Handbook
Indicators
Figure 1 below shows the indicators on the detector.
Figure 1: External components
Alarm
Pre-Alarm
Fault
OK
Flow
Filter
Laser
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(1) Alarm: Illuminates to indicate that the smoke level has passed the detector’s Fire 1 threshold,
and the normally open ALARM relay contacts have closed.
(2) Pre-Alarm: Illuminates to indicate that the smoke level has passed the detector’s Pre-Alarm
threshold, and the normally open PRE-ALARM relay contacts have closed.
(3) Fault: Illuminates to indicate a fault condition and that the normally closed FAULT relay
contacts have opened. Three additional LEDs indicate the type of fault.
If the Fault LED is illuminated but none of the additional LEDs are lit, it indicates a problem
with the power supply if its fault output is connected to the detector’s INPUT terminals and
DIP switch 7 is set to OFF (its default position). Alternatively, this can happen if the INPUT
terminals are left open circuit and DIP switch 7 is OFF.
(4) OK: Illuminates to confirm normal operation.
During initial setup, the OK LED will flash for 15 minutes while the detector learns its
operating environment. This does not indicate a problem with the detector.
(5) Flow: Illuminates to indicate an airflow fault. This may be due to blocked or broken pipes,
although it can also occur if, for example, factory warehouse doors are opened on a windy
day, a large pressure change occurs, or if industrial air conditioning turns on. Another
possible cause is that the aspiration fan connection cable is damaged or disconnected.
(6) Filter: Illuminates to indicate that the detector’s air filter needs to be changed.
(7) Laser: Illuminates to indicate a problem with the detector laser chamber, as might be caused
by the laser head connecting cable is damaged or disconnected. It can also be caused by
certain kinds of internal systems faults, which appear in the detector’s event log as “process
errors.”
(8) Front cover securing screw: Leave sufficient clearance below the detector to allow
screwdriver access to this screw.
Chapter 1: Product and component descriptions
LaserSense Nano Aspirating Smoke Detector Installers Handbook 5
Inside the detector
Figure 2
below shows the main interior parts of a detector with the cover off.
Figure 2: Internal components
(1) Two holes for conduit connection. There are two 3/4 in. drilling guides provided on the top of
the detector and one on the bottom providing holes for conduit.
(2) Pipe entries provide a connection for 3/4-inch pipe. A 3/4 in. male to 25 mm female adapter
is required when using larger than 1 inch (27 mm) O.D. pipe.
Note: Do not glue pipes into the detector to allow for future removal.
(3) Aspirating fan connector lead: If this lead is broken or not connected, the fan will not turn and
the detector will indicate a FLOW fault.
(4) Main PCB: No user-serviceable parts.
The PCB is fixed in place with 5 M3 x 6 screws. The detector should not be operated with
any of the screws missing, as this could cause air leaks and unreliable operation.
(5) Power supply connection terminals
(6) Volt-free relay contact terminals
(7) DIP switch: Used to configure user-selectable detector functions.
(8) Input switch terminals
(9) Ribbon cable connection for optional communication card or APIC card
(10) Optional communication terminals: used when the optional communication card is fitted to
connect the RS-485 network
Chapter 1: Product and component descriptions
6 LaserSense Nano Aspirating Smoke Detector Installers Handbook
(11) Detector laser head ribbon connector: If this lead is broken or not connected, the detector
will indicate a HEAD Fault.
(12) Detector laser head assembly: No user-serviceable parts. Do not remove this from the
detector, due to the risk of exposure to the laser.
(13) Detector laser head cover plate: This protects the laser head. The plate should not be
removed from the detector.
(14) Replaceable dust filter: This simply slides in and out of its mounting. The separator and its
replacement have IN written in red on one side, and OUT on the other to indicate correct
orientation.
(15) Three mounting holes to mount the detector. Use #10-24 pan-head screws for mounting.
Note: Ensure that the detector is fixed to a flat surface so that the enclosure will not twist and
become damaged.
LaserSense Nano Aspirating Smoke Detector Installers Handbook 7
Chapter 2
Installation and
configuration
Summary
This chapter provides information necessary to install and configure the detector
system.
Content
Introduction 8
Antistatic precautions 8
System design 9
Sample pipe networks 10
Air handling unit installation 10
Below or above the ceiling installations 11
Return air duct sampling method 13
Return air grill sampling method 15
Installation 16
Installation guidelines 16
Removing the front cover 17
Mechanical installation 17
Electrical installation 19
Configuration 23
Final installation 25
Removing the detector 25
Chapter 2: Installation and configuration
8 LaserSense Nano Aspirating Smoke Detector Installers Handbook
Introduction
This chapter provides information necessary to install the Nano detector system.
Installation consists of the following steps:
1. Unpack the shipping carton. Ensure that the package contains product
literature, one ferrite ring, and the detector.
2. Determine the optimum location for the detector.
3. Mount the detector into the selected location.
4. Connect the detector to the sampling pipe network.
Installation should only be done by factory-trained technicians.
Installation should be in accordance with applicable installation requirements.
These include:
• NFPA-70, National Electrical Code
• NFPA-72, National Fire Alarm and Signaling Code
• CSA C22.1 Canadian Electrical Code, Part 1
• CAN/ULC-S524 Installation of Fire Alarm Systems
• Any other local, national, or installation requirements or standards.
WARNING: Electrocution hazard. All connections should be made with the
power turned off.
Antistatic precautions
This system contains static-sensitive components. Always ground yourself with a
proper wrist strap before handling any circuits.
Caution: When handling any electric components or printed circuit boards,
antistatic precautions must be followed. Failure to do so may result in component
damage.
Static discharge can be reduced by adhering to the following guidelines:
• Always use conductive or antistatic containers for transportation and storage,
if returning any item.
• Wear a wrist strap while handling devices and ensure that a good ground is
maintained throughout the installation process.
• Never subject a static sensitive device to sliding movement over an
ungrounded surface and avoid any direct contact with the pins or
connections.
• Avoid placing sensitive devices onto plastic or vinyl surfaces.
• Minimize the handling of sensitive devices and printed circuit boards (PCBs).
Chapter 2: Installation and configuration
LaserSense Nano Aspirating Smoke Detector Installers Handbook 9
System design
Pre-engineered piping designs simplify the installation of the detector pipe
network. The following criteria ensure that the airflow and transport times are
within the design of the detector. The design parameters listed below must be
adhered to for all pre-engineered pipe designs. Pre-engineered piping
networks should not exceed the transport time requirement of 120 seconds.
During the system test, transport times are often less than 55 seconds.
• The maximum of three elbows and one pipe tee can be used in any pipe
network design.
• When using a pipe tee, it must be located within 20 feet of pipe from the
detector.
• All capillary tubes will have a maximum length of 3 feet and use a 9/64 inch
sampling hole size.
• The first sampling hole must be 10 feet or more from the detector.
• The use of sampling capillary tubes and sampling holes can be mixed in any
combination on the pipe network.
• On branch designs, the same number of sampling holes must be used on
each branch.
Table 2: Sample pipe network parameters
Total pipe
length
Max amount
elbows
Max sampling
points
Sampling
hole size
Capillary tube
sample hole size
End cap
hole
164 feet 3 10 1/8 inch 9/64 inch 5/32 inch
Note: PipeCAD pipe modeling software is used to design pipe networks outside
the above parameters. Refer to the PipeCAD System Design and Installation User
Manual for complete instructions.
The Nano detector employs a fan designed to detect smoke in relatively small
areas. The Nano detector is
not
intended to protect large areas, or to sample from
areas where there may be any difference in airflow rates or pressure
differentials. If detection in environments conforming to these descriptions is
required, other type detectors should be used.
Always locate the sampling points in positions to which smoke may reasonably be
expected to travel. It is usually better to locate the sampling pipe directly in the
airflow (for example, across the return air register of an air conditioning unit).
Note: There is no substitute for carrying out smoke tests prior to installation of
pipework to indicate suitable sampling point location.
Chapter 2: Installation and configuration
10 LaserSense Nano Aspirating Smoke Detector Installers Handbook
Sample pipe networks
Simple designs with short sampling pipes produce the best results. Maximum
allowed sampling pipe length is 164 feet (50 meters) in still air. In areas or
applications where the external airflow rate is greater than 3 feet per second
(1 meter per second), the maximum sampling pipe length is reduced to 33 feet
(10 meters).
Air handling unit installation
No more than one air handling unit may be protected with one Nano detector.
In this application, ensure that the sampling pipe is raised clear of high velocity
air in the immediate vicinity of the air intake grill on standoff posts as shown in
Figure 3 below.
Figure 3: Air handling unit in vicinity of the Nano detector (exhaust pipes not shown for
clarity)
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(3)
(1) Incorrect
(2) Detector
(3) Sampling pipe
(4) Standoff posts
(5) Correct
(6) Detector
(7) AHU
(8) Equipment cabinet
(9) Direction of smoke
Chapter 2: Installation and configuration
LaserSense Nano Aspirating Smoke Detector Installers Handbook 11
Below or above the ceiling installations
The Nano detector is supplied with an exhaust port (see Figure 2 on page 5).
This allows the Nano detector to sample from areas which may be at different
air pressure from the detector location. Typical uses are for air-duct sampling and
allowing the installation of the detector in under-floor or ceiling voids or when
sampling from pieces of computer related equipment. See Figure 4 below and
Figure 5 on page 12.
Figure 4: Installation of pipework above ceiling with exposed detector (piped exhaust)
(1)
(3)
(4)
(2)
(5)
(1) Sampling pipe
(2) Sampling hole
(3) Exhaust pipe
(4) Detector
(5) False ceiling
Chapter 2: Installation and configuration
12 LaserSense Nano Aspirating Smoke Detector Installers Handbook
Figure 5: Installation with detector mounted in ceiling void (no exhaust piping)
(1)
(2)
(4)
(3)
(1) Sampling pipe
(2) Sampling hole
(3) Detector
(4) False ceiling
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