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Xtralis VESDA VLF-250 Product Manual
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Xtralis VESDA VLF-250 Product Manual

Xtralis VESDA VLF-250 Product Manual

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VESDA VLF-250
Product Guide
December 2017
Document: 07208
Revision: A
Build: 2
Part Number: 29025

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Summary of Contents for Xtralis VESDA VLF-250

  • Page 1 VESDA VLF-250 Product Guide December 2017 Document: 07208 Revision: A Build: 2 Part Number: 29025...
  • Page 3 You acknowledge that you have not relied on any oral or written information, representation or advice given by or on behalf of Xtralis or its representatives.
  • Page 4 VESDA VLF-250 Product Guide VESDA by Xtralis Scope This Product Guide describes the features of the VESDA VLF-250, the specifications and functions, installation requirements, commissioning and operation procedures. A schedule for preventative maintenance is also provided. Document Conventions The following typographic conventions are used in this document:...
  • Page 5 This Xtralis product incorporates a laser device and is classified as a Class 1 laser product that complies with FDA regulations 21 CFR 1040.10. The laser is housed in a sealed detector chamber and contains no serviceable parts.
  • Page 6 Class C detectors passed EN 54-20 approvals testing with 12 holes and 0.80% obscuration/m detector sensitivity Product Listings ActivFire LPCB VNIIPO EN 54-20 Regional approvals listings and regulatory compliance vary between VESDA product models. Refer to www.xtralis.com for the latest product approvals matrix. Document: 07208 Revision: A Build: 2 Part Number: 29025 www.xtralis.com...
  • Page 7 VESDA by Xtralis VESDA VLF-250 Product Guide Table of Contents Introduction General Notification Installation Dimensions Mounting Installing the Detector Detector Removal Air inlet pipe connections Exhaust air pipe connections Wiring Connections RS232-compatible serial port Installation Checklist Sampling Pipe Network Design...
  • Page 8 VESDA VLF-250 Product Guide VESDA by Xtralis Overview Maintenance Schedule Replace the Filter Cartridge Aspirator Replacement 10 Commissioning Forms 10.1 VESDA Commissioning Form 10.2 VLF-250 Detector Commissioning Form 10.3 Display/Relay Configuration 10.4 Relay Configuration 10.5 VESDAnet Interface Card (VIC-010) (plug-in) 10.6...
  • Page 9 VESDA VLF-250 Product Guide Introduction The VESDA VLF-250 early warning air sampling smoke detector incorporates world leading VESDA very early warning laser based aspirated smoke detection technology. It provides localized fire risk management solutions for small, critical environments. The VLF-250 monitors areas up to 250 m² (2690 sq. ft.) dependant on local codes and standards.
  • Page 10 VESDA VLF-250 Product Guide VESDA by Xtralis This page is intentionally left blank. www.xtralis.com...
  • Page 11 VESDA by Xtralis VESDA VLF-250 Product Guide Installation The VESDA VLF detector is shipped with all the components necessary for installation with the exception of pipe and associated materials. Components include: 1 VESDA VLF detector with fitted exhaust deflector 1 Mounting bracket 1 End of Line resistor (refer to GPI –...
  • Page 12 VESDA VLF-250 Product Guide VESDA by Xtralis Mounting The VESDA VLF can be installed upright, inverted or horizontally. Note: Ensure the smoke detector is mounted away from obstructions and below ceiling level. Caution: An exhaust deflector must be fitted for upright mounting, unless the exhaust port is connected to a return air pipe.
  • Page 13 VESDA by Xtralis VESDA VLF-250 Product Guide Installing the Detector In all installation cases the mounting bracket must be fitted (upright) as shown in Figure 2-4 on page 8. Note: Ensure the mounting surface is flat. This will permit an air tight seal to be achieved between the sampling pipe and the tapered air ports on the detector.
  • Page 14 VESDA VLF-250 Product Guide VESDA by Xtralis 2.3.1 Installation Procedure Cut the air inlet pipe and exhaust pipe (if used) at 90°, and to the same length (for normal and inverted mounting). Remove all rough edges. This is critical to obtain an air tight seal with the smoke detector.
  • Page 15 VESDA by Xtralis VESDA VLF-250 Product Guide 2.3.2 Inverting the user interface display Caution: Electrostatic discharge precautions need to be taken prior to removing the front cover from the detector. Attention : Il convient de prendre des précautions contre les décharges électrostatiques avant d'enlever le capot avant du détecteur.
  • Page 16 VESDA VLF-250 Product Guide VESDA by Xtralis Detector Removal Caution: Electrostatic discharge precautions need to be taken prior to removing the front cover from the detector otherwise damage may occur to the unit. Attention : Il convient de prendre des précautions contre les décharges électrostatiques avant d'enlever le capot avant du détecteur, sinon l'appareil risque d'être endommagé.
  • Page 17 VESDA by Xtralis VESDA VLF-250 Product Guide Air inlet pipe connections The tapered shape of the air inlet port is designed to accept standard pipes of OD 25 mm (ID 21 mm) or IPS ¾ in (OD 1.05 in) and provide an air tight seal.
  • Page 18 VESDA VLF-250 Product Guide VESDA by Xtralis Wiring Connections Caution: Electrostatic discharge precautions need to be taken prior to removing the front cover from the detector otherwise damage may occur to the unit. Attention : Il convient de prendre des précautions contre les décharges électrostatiques avant d'enlever le capot avant du détecteur, sinon l'appareil risque d'être endommagé.
  • Page 19 VESDA by Xtralis VESDA VLF-250 Product Guide 2.7.2 GPI – General Purpose Input (Terminals 1 & 2) The General Purpose Input (GPI) is a programmable input. When the GPI function parameter is set to external, the detector shall indicate an external equipment fault condition by monitoring the line impedance. An End of Line (EOL) resistor is supplied with the product and must be assembled in parallel with the device to be monitored.
  • Page 20 VESDA VLF-250 Product Guide VESDA by Xtralis Legend A End of Line Resistor (2.7k) B External device (1 to N) C GPI Pin 1 D GPI Pin 2 Figure 2-10: Triggering of GPI 2.7.3 Extra terminals (Terminals 3, 4, 5, 6 & 7) Terminals reserved for future use.
  • Page 21 VESDA by Xtralis VESDA VLF-250 Product Guide 2.7.5 Relays (Terminals 12 - 20) The relays allow alarm and fault signals to be hard wired to external devices, such as fire alarm control panels and loop interface modules away from the detector (example, sounding a siren at Action threshold). Refer to the appropriate installation manual for connectivity instructions.
  • Page 22 VESDA VLF-250 Product Guide VESDA by Xtralis 2.7.7 Wiring to an Address Loop Module This wiring example is for wiring VESDA detectors to a typical Address Loop module 3 input 1 output. These are example drawings. Refer to the appropriate product manual for the exact wiring details of the third party equipment.
  • Page 23 The RS232 serial port requires a standard 9-pin DB9 PC COM serial extension cable (male to female) for configuring the detector using a PC with Xtralis VSC software installed, for status monitoring and command input, and for event log extraction and software upgrades.
  • Page 24 VESDA VLF-250 Product Guide VESDA by Xtralis Installation Checklist Site Name Address Detector Serial Number(s) and Date of Manufacture Interface Card Serial Number and Date of Manufacture Name of Installer Signature Date Perform the following checks listed below to ensure that all the necessary items are completed before handing over to a commissioning engineer.
  • Page 25 VESDA by Xtralis VESDA VLF-250 Product Guide Sampling Pipe Network Design The VESDA VLF supports a number of pre-engineered pipe network designs to simplify installation. The pre- engineered pipe networks have been designed with pressure, flow and transport time considerations. They have been verified and are shown below.
  • Page 26 VESDA VLF-250 Product Guide VESDA by Xtralis Single Pipe Network The table below shows the appropriate hole sizes for pre-engineered designs for a single pipe set up. Table 3-1: Single pipe hole numbers and sizes Single Pipe Network – max. length 25 m (80 ft.)
  • Page 27 VESDA by Xtralis VESDA VLF-250 Product Guide Branched Pipe Network The table below shows the appropriate hole sizes for pre-engineered designs for a branched pipe set up. Table 3-2: Branched pipe hole numbers and sizes Branched Pipe Network – max. length 15 m (50 ft.) (2 branches) max.
  • Page 28 VESDA VLF-250 Product Guide VESDA by Xtralis Return air sampling (return grilles) The VESDA VLF is suitable for air sampling across return air grilles of Air Handling Units. The recommended coverage of the VESDA VLF is 0.4 m² (4 sq. ft.) per sampling hole. This should be considered in conjunction with local codes and standards.
  • Page 29 VESDA by Xtralis VESDA VLF-250 Product Guide Installation Considerations Note: For code-specific information, refer to Codes and Standards Information for Air Sampling Smoke Detection on page iii. The VESDA VLF provides very early warning smoke detection specifically for small environments.
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  • Page 31 The VESDA VLF has been designed to simplify commissioning processes. The AutoLearn function allows the unit to assess its environment and setup appropriate alarm and flow thresholds. The unit may also be programmed through Xtralis VSC software, for all programmable settings. For further information refer to Chapter 7 on page 37.
  • Page 32 The AutoLearn Flow learning times range from 15 minutes to 15 days, with the default being set to 14 days. Xtralis VSC Xtralis VSC is an optional software application that allows all VESDA detectors to be configured. All parameters can be set manually or previously saved configuration settings may be applied. Refer to the Xtralis VSC online help for details regarding the setting of these thresholds.
  • Page 33 Ultrasonic flow sensing is not affected by temperature, humidity or pressure. Detector history is provided by the non-volatile Event Logging feature. Smoke trend data, flow trend data, fault events, configuration events and operational events are recorded. Using Xtralis VSC these event types can be filtered individually.
  • Page 34 VESDA VLF-250 Product Guide VESDA by Xtralis This page is intentionally left blank. www.xtralis.com...
  • Page 35 VESDA by Xtralis VESDA VLF-250 Product Guide Product Interface The VESDA VLF provides the following information and control options without the need for additional configuration tools. Detector status: Normal, Alarm, Disabled and Fault. Alarm levels: Alert, Action, Fire 1 and Fire 2.
  • Page 36 VESDA VLF-250 Product Guide VESDA by Xtralis Instant Recognition Display The Instant Recognition display provides you with an immediate understanding of smoke levels relative to Fire 1 alarm threshold. Legend Option Definition LED Color A FIRE 2 Indicates the Fire 2 threshold has been reached.
  • Page 37 VESDA by Xtralis VESDA VLF-250 Product Guide Controls and Indicators Control buttons are accessed by opening the field service access door. This door is opened by pressing in the security tab, on the right side of the detector, with a flat screw driver and then lifting the door by the finger clips on each side of the door (refer to Figure 6-3 below).
  • Page 38 Press and hold down this button to test resumes normal operation. the function of LEDs on the unit. To enable or lockout this button Xtralis VSC software is required. Release this button to clear latched faults and alarms. Alarm and fault lights...
  • Page 39 VESDA by Xtralis VESDA VLF-250 Product Guide Table 6-1: Detector Buttons (continued...) Icon Button Description AutoLearn Smoke Automatically sets alarm Pressing the recessed AutoLearn Smoke threshold values based on button initiates the automatic smoke the normal operating alarm set-up mode. The LED, beside the environment.
  • Page 40 VESDA VLF-250 Product Guide VESDA by Xtralis Smoke level & Instant Fault Finder displays Under normal operating conditions the circular Smoke Dial displays smoke levels in sampled air. Through Instant Fault Finder, the Smoke Dial temporarily changes the segments into fault indicators, with each segment corresponding to a specific fault condition.
  • Page 41 VESDA by Xtralis VESDA VLF-250 Product Guide Table 6-2: Instant fault finder diagnosis (continued...) Fault Type Explanation Action High flow High flow fault present (urgent or Check the pipe network for non-urgent). Flow readings are breakages. Also check the above user set flow limits or the...
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  • Page 43 VESDA by Xtralis VESDA VLF-250 Product Guide Factory Defaults Table 7-1: Factory defaults Parameter Allowed values Default values Alert Smoke Threshold 1 & 2 0.025% - 2.0% obs/m* 0.08% obs/m (0.008% - 0.625% obs/ft.) (0.025% obs/ft.) Action Smoke Threshold 1 & 2 0.025% - 2.0% obs/m*...
  • Page 44 VESDA VLF-250 Product Guide VESDA by Xtralis This page is intentionally left blank. www.xtralis.com...
  • Page 45 5% to 95% * Product UL listed for use from 0°C to 38°C (32°F to 100°F). ** Sampled Air temperature shall reach Ambient Detector temperature upon entry into Detector. Refer to Xtralis Design Guides & Application Notes for sampled air pre-conditioning.
  • Page 46 VESDA VLF-250 Product Guide VESDA by Xtralis Area Covered VLF-250 250 m² (2690 sq. ft.) Field Wiring Access 3 x 25 mm (1 in.) Cable entries (1 rear entry) Terminals 0.2 mm² - 2.5 mm² (30 - 12 AWG) Interfaces Power In/Out.
  • Page 47 VESDA VLF-250-00 European language set, English display labels. VESDA VLF-25001 European language set, International display labels. VESDA VLF-250-02 English + Asian language set, International display labels. VESDA VLF-250-03 Scandinavian language set, International display labels. VESDA VLF-250-04 English + Russian language set, International display labels.
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  • Page 49 VESDA by Xtralis VESDA VLF-250 Product Guide Maintenance Overview The VESDA VLF continuously monitors its own operation and conducts frequent health checks. There are two serviceable items, the air filter cartridge and the aspirator. Caution: Electrostatic discharge precautions need to be taken prior to removing the front cover from the detector otherwise damage may occur to the detector.
  • Page 50 VESDA by Xtralis Maintenance Schedule To maintain the VESDA VLF-250 in peak working order follow the maintenance standards for your region and where no recommended standard exists see the table below. Please note, for environments that experience high levels of contamination, the frequency of maintenance will need to be increased. Maintenance should be conducted by a qualified service contractor.
  • Page 51 VESDA by Xtralis VESDA VLF-250 Product Guide Replace the Filter Cartridge The VESDA VLF smoke detector uses a disposable air filter cartridge. This filter removes dust contamination from sampled air and provides a clean air bleed to preserve the detector chamber optics. The detector constantly monitors filter efficiency.
  • Page 52 VESDA VLF-250 Product Guide VESDA by Xtralis Aspirator Replacement Note: Prior to replacing the aspirator advise the monitoring authority that power will be removed and the system disabled. Caution: Electrostatic discharge precautions need to be taken prior to removing the front cover from the detector otherwise damage may occur to the unit.
  • Page 53 VESDA by Xtralis VESDA VLF-250 Product Guide 10 Commissioning Forms 10.1 VESDA Commissioning Form This is the main commissioning form for each customer site. Customer Name Site Address Installer (Name & Contact) Commissioner (Name & Contact) Checks Date: 1. Wiring Checked 2.
  • Page 54 VESDA VLF-250 Product Guide VESDA by Xtralis 10.2 VLF-250 Detector Commissioning Form While connected via Xtralis VSC, for all VESDAnet systems, highlight the device, the zone or VESDAnet then select File > Print to file. Address (VESDA Zone) VESDA Zone Name...
  • Page 55 VESDA by Xtralis VESDA VLF-250 Product Guide 10.3 Display/Relay Configuration Button Lockout Enabled/Disabled Smoke Test Reset Isolate AutoLearn Smoke AutoLearn Flow Relays Connected Yes/No GPI Connected Yes/No GPI Function 10.4 Relay Configuration Relay Start-up Latching Fault Action Fire 1 D= Normally De-energized; E= Normally Energized 10.5 VESDAnet Interface Card (VIC-010) (plug-in)
  • Page 56 VESDA VLF-250 Product Guide VESDA by Xtralis 10.7 Ancillary Devices Ancillary devices includes any remote displays, remote relay cards, AOM and SRM assigned to this VESDA VLF detector. Device Name Device Serial No. Firmware Version Location 10.8 ASPIRE Data Group 1...
  • Page 57 VESDA by Xtralis VESDA VLF-250 Product Guide Pipe or Branch 1 Branch 2 Test 2 Initial Response Alert Action Fire 1 Fire 2 Peak Smoke www.xtralis.com...
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  • Page 59 VESDA by Xtralis VESDA VLF-250 Product Guide 11 Glossary A Aspirator Impeller type fan used to draw sampled air into the detector. C Capillary Tubes Flexible tubes attached to the sampling pipe network for sampling specific areas or objects away from the sampling pipe.
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  • Page 61 Xtralis VSC will also indicate standby mode, usually with a blue box that surrounds the detector in the Xtralis VSC device tree. Check if there is a FLOW SENSOR FAIL fault. If there is, you will need to return the detector for repair.
  • Page 62 How do I change the filter on my VESDA VLF? Refer to the VESDA Maintenance Guide, available on the website under www.xtralis.com for full details. VESDA VLF detectors need to have the front cover lifted. Secure the replacement filter and acknowledge the action via a configuration tool (Xtralis VSC or programmer).
  • Page 63 VESDA by Xtralis VESDA VLF-250 Product Guide Index fault 13, 15, 22, 27, 29-32, 34, 40, 49 latching action 15, 25, 29-30, 37, 40, 48-50, 55 features air inlet 6, 8, 11, 18, 29, 39 field service access 9-10, 12, 25-27, 31, 45-...
  • Page 64 VESDA VLF-250 Product Guide VESDA by Xtralis 17, 25-27, 32, 44, 53, 55 open area warranty 5, 11 wiring 7, 10, 12, 14-15, 34, 40, 46-47 peak smoke 25, 50 general purpose input 5, 13, 40, 53 pipe 5-8, 11, 18-23, 25-27, 29, 34, 44, 50, 53...