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Xtrails VESDA VLF-500-UL Product Manual

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VESDA VLF-500-UL Product Guide
August 2021
Doc. No. 36286_A2
Part No. AD36286-001
VLF-500-00-UL
VLF-500-02-UL

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  • Page 1 VESDA VLF-500-UL Product Guide VLF-500-00-UL VLF-500-02-UL August 2021 Doc. No. 36286_A2 Part No. AD36286-001...
  • Page 3 VESDA VESDA VLF-500-UL 7Ed Product Guide Intellectual Property and Copyright This document includes registered and unregistered trademarks. All trademarks displayed are the trademarks of their respective owners. Your use of this document does not constitute or create a licence or any other right to use the name and/or trademark and/or label.
  • Page 4 VESDA VLF-500-UL 7Ed Product Guide VESDA Scope This Product Guide describes the features of the VESDA VLF-500-UL, 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 VESDA VESDA VLF-500-UL 7Ed Product Guide Codes and Standards Information for Air Sampling Smoke Detection We strongly recommend that this document is read in conjunction with the appropriate local codes and standards for smoke detection and electrical connections. This document contains generic product information and some sections may not comply with all local codes and standards.
  • Page 6 VESDA VLF-500-UL 7Ed Product Guide VESDA Configuring Detector Thresholds for UL 268 Ed7 standard Compliance OPEN AREA Introduction of ANSI standard UL268 7 edition, which now includes a nuisance alarm requirement for which the detector is not permitted to signal an alarm during UL defined nuisance fire conditions.
  • Page 7 VESDA VESDA VLF-500-UL 7Ed Product Guide SPECIAL APPLICATION Xtralis VESDA detectors may be optionally configured for use in special application environments with higher Fire Alarm sensitivity that is, by default not allowed by the ANSI UL 268 Ed7 standard. Special application mode is suitable for areas where early warning is paramount, in this mode, the detector may not be compliant with the Nuisance requirement of UL 268 Ed7 standard.
  • Page 8 VESDA VLF-500-UL 7Ed Product Guide VESDA Regional Regulatory Requirements and Notices UL Installations For Open Area, Special Application, High Velocity and DUCT installations, ASPIRE software is required to design sampling pipe networks that conform to the performance claims verified by UL refer to Table 1 below.
  • Page 9 VESDA VESDA VLF-500-UL 7Ed Product Guide Electrostatic discharge (ESD) precaution Note: Several maintenance functions require that the front cover be removed and the system disabled. Prior to carrying out any work or maintenance on the VESDA VLF take the necessary steps to advise the monitoring authority that power may be removed and the system disabled.
  • Page 10 VESDA VLF-500-UL 7Ed Product Guide VESDA Product Security Advice Warning: Failure to comply with the requirements below exposes the system to malicious interference which could disable smoke reporting. Scan the QR code to access the latest security advice available from: https://xtralis.com/33252 Commissioning Requirements All VESDAnet wiring and connection ports must be secured against unauthorized access.

  • Page 11: Table Of Contents

    VESDA VESDA VLF-500-UL 7Ed Product Guide Table of Contents Introduction 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 Single Pipe Network...
  • Page 12 VESDA VLF-500-UL 7Ed Product Guide VESDA Maintenance Schedule Replace the Filter Cartridge Aspirator Replacement 10 Commissioning Forms 10.1 VESDA Commissioning Form 10.2 VLF-500-UL Detector Commissioning Form 10.3 Display/Relay Configuration 10.4 Relay Configuration 10.5 VESDAnet Interface Card (VIC-010) (plug-in) 10.6 VESDAnet Multi-Function Relay Card (VIC-020/VIC-030) 10.7...

  • Page 13: Introduction

    VESDA VLF-500-UL 7Ed Product Guide Introduction The VESDA VLF-500-UL 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-500-UL monitors areas up to 5380 sq. ft. (500 m²) dependant on local codes and standards.
  • Page 14 VESDA VLF-500-UL 7Ed Product Guide VESDA This page is intentionally left blank. www.xtralis.com...

  • Page 15: Installation

    VESDA VESDA VLF-500-UL 7Ed 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 16: Mounting

    VESDA VLF-500-UL 7Ed Product Guide VESDA 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 17: Installing The Detector

    VESDA VESDA VLF-500-UL 7Ed 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 18 VESDA VLF-500-UL 7Ed Product Guide VESDA 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 19 VESDA VESDA VLF-500-UL 7Ed Product Guide 2.3.2 Inverting the user interface display Precaution: Electrostatic discharge precautions need to be taken prior to removing the front cover from the detector. For inverted mounting applications, the VESDA VLF will require the user interface display to be turned through 180°.

  • Page 20: Detector Removal

    VESDA VLF-500-UL 7Ed Product Guide VESDA Detector Removal Precaution: Electrostatic discharge precautions need to be taken prior to removing the front cover from the detector. Note: Take the necessary steps to advise the monitoring authority of work being carried out and that the system needs to be disabled.

  • Page 21: Air Inlet Pipe Connections

    VESDA VESDA VLF-500-UL 7Ed Product Guide Air inlet pipe connections The tapered shape of the air inlet port is designed to accept standard pipes of IPS ¾ in (OD 1.05 in) or OD 25 mm (ID 21 mm) and provide an air tight seal.

  • Page 22: Wiring Connections

    VESDA VLF-500-UL 7Ed Product Guide VESDA Wiring Connections Precaution: Electrostatic discharge precautions need to be taken prior to removing the front cover from the detector. 2.7.1 Detector cabling requirements The screw type terminals located on the termination card within the VESDA VLF will accept wire sizes from 30 –...
  • Page 23 VESDA VESDA VLF-500-UL 7Ed 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 24 VESDA VLF-500-UL 7Ed Product Guide VESDA 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 25 VESDA VESDA VLF-500-UL 7Ed 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 26 VESDA VLF-500-UL 7Ed Product Guide VESDA 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 27: Rs232-Compatible Serial Port

    VESDA VESDA VLF-500-UL 7Ed Product Guide RS232-compatible serial port 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 28: Installation Checklist

    VESDA VLF-500-UL 7Ed Product Guide VESDA 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 29: Sampling Pipe Network Design

    VESDA VESDA VLF-500-UL 7Ed 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 30: Single Pipe Network

    VESDA VLF-500-UL 7Ed Product Guide VESDA 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 150 ft. (50 m) IPS ¾...

  • Page 31: Branched Pipe Network

    VESDA VESDA VLF-500-UL 7Ed 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 max. length 90 ft. (30 m) Branched Pipe Network –...

  • Page 32: Return Air Sampling (Return Grilles)

    VESDA VLF-500-UL 7Ed Product Guide VESDA 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 4 sq. ft. (0.4 m²) per sampling hole. This should be considered in conjunction with local codes and standards.

  • Page 33: Installation Considerations

    VESDA VESDA VLF-500-UL 7Ed 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. The pre-engineered pipe network designs can support up to 8 sampling holes for single pipes and 12 sampling holes for branched pipe arrangements.
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  • Page 35: Commissioning

    VESDA VESDA VLF-500-UL 7Ed Product Guide Commissioning General 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.

  • Page 36: Autolearn Flow

    VESDA VLF-500-UL 7Ed Product Guide VESDA The AutoLearn Smoke LED will remain on for the duration of the AutoLearn process. At the start of the process the alarm thresholds are set to the default values. During this learning cycle, alarm conditions can be reported.

  • Page 37: Detector Overview

    VESDA VESDA VLF-500-UL 7Ed Product Guide Detector Overview Features Laser Based Absolute Smoke Detection Wide Sensitivity Range Programmable Alarm Thresholds Clean Air Barrier for Optics Protection Instant Recognition Display Instant Fault Finder™ AutoLearn™ Smoke AutoLearn™ Flow Ultrasonic Flow Sensing Referencing (requires a VESDAnet Interface Card)
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  • Page 39: Product Interface

    VESDA VESDA VLF-500-UL 7Ed 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 40: Instant Recognition Display

    VESDA VLF-500-UL 7Ed Product Guide VESDA 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 41: Controls And Indicators

    VESDA VESDA VLF-500-UL 7Ed 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 42 VESDA VLF-500-UL 7Ed Product Guide VESDA 6.3.2 Detector control buttons Table 6-1: Detector Buttons Icon Button Description Reset Resets the system and Press and hold down this button to test resumes normal operation. the function of LEDs on the unit.
  • Page 43 VESDA VESDA VLF-500-UL 7Ed 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 44: Smoke Level & Instant Fault Finder Displays

    VESDA VLF-500-UL 7Ed Product Guide VESDA 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 45 VESDA VESDA VLF-500-UL 7Ed 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 47: Factory Defaults

    VESDA VESDA VLF-500-UL 7Ed Product Guide Factory Defaults Table 7-1: Factory defaults Parameter Allowed values Default values Alert Smoke Threshold 1 & 2 0.008% - 0.625% obs/ft.* 0.025% obs/ft. (0.025% - 2.0% obs/m) (0.08% obs/m) Action Smoke Threshold 1 & 2 0.008% - 0.625% obs/ft.*...
  • Page 48 VESDA VLF-500-UL 7Ed Product Guide VESDA This page is intentionally left blank. www.xtralis.com...

  • Page 49: Specifications

    VESDA VESDA VLF-500-UL 7Ed Product Guide Specifications Power Supply Supply Voltage 24 VDC nominal (18 - 30 VDC)* Power Consumption @ 24 VDC 9.8 W nominal, 11.7 W in alarm* Current Consumption @ 24 VDC 410 mA nominal, 490 mA in alarm* *For code-specific information, refer to Codes and Standards Information for Air Sampling Smoke Detection on page iii.

  • Page 50: Area Covered

    VESDA VLF-500-UL 7Ed Product Guide VESDA Area Covered VLF-500-UL 5380 sq. ft. (500 m²) Field Wiring Access 1 in. (3 x 25 mm) Cable entries (1 rear entry) Terminals 30 - 12 AWG (0.2 mm² - 2.5 mm²) Interfaces Power In/Out.

  • Page 51: Ordering Information

    VESDA VESDA VLF-500-UL 7Ed Product Guide 8.13 Ordering Information VESDA VLF-500- European language set, English 00-UL display labels. VESDA VLF-500-UL VESDA VLF-500 DET DISP VESDA VLF-500- ICON+ENG ASIAN UL. 02-UL International display labels. Filter Cartridge VSP-005 Aspirator for VLF-500-UL VSP-715...
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  • Page 53: Maintenance

    VESDA VESDA VLF-500-UL 7Ed 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. Precaution: Electrostatic discharge precautions need to be taken prior to removing the front cover from the detector.

  • Page 54: Maintenance Schedule

    VESDA Maintenance Schedule To maintain the VESDA VLF-500-UL 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.

  • Page 55: Replace The Filter Cartridge

    VESDA VESDA VLF-500-UL 7Ed 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 56: Aspirator Replacement

    VESDA VLF-500-UL 7Ed Product Guide VESDA Aspirator Replacement Note: Prior to replacing the aspirator advise the monitoring authority that power will be removed and the system disabled. Precaution: Electrostatic discharge precautions need to be taken prior to removing the front cover from the detector.

  • Page 57: Commissioning Forms

    VESDA VESDA VLF-500-UL 7Ed 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. Detector Diagnostics 3.

  • Page 58: Vlf-500-Ul Detector Commissioning Form

    VESDA VLF-500-UL 7Ed Product Guide VESDA 10.2 VLF-500-UL 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 59: Display/Relay Configuration

    VESDA VESDA VLF-500-UL 7Ed 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 60: Ancillary Devices

    VESDA VLF-500-UL 7Ed Product Guide VESDA 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 61: Air Sampling Test Results

    VESDA VESDA VLF-500-UL 7Ed Product Guide 10.10 Air Sampling Test Results Pipe or Branch 1 Branch 2 Transport Time from End Cap Hole Test 1 Initial Response Alert Action Fire 1 Fire 2 Peak Smoke Test 2 Initial Response Alert...
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  • Page 63: Glossary

    VESDA VESDA VLF-500-UL 7Ed 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 65: Frequently Asked Questions (Faq)

    What are the permissible flow normalisation limits for VESDA VLF detectors? VESDA VLF-500-UL: minimum = 12 liters per minute, maximum = 54 liters per minute What do I do if my VESDA VLF is showing a flow rate of 0 l/min? Check whether the unit is in standby mode on the front panel.
  • Page 66 VESDA VLF-500-UL 7Ed Product Guide VESDA Can the deflector be removed from the VESDA VLF exhaust? It is a tight fit but it can be removed. With all VESDA detectors, we recommend returning all sampled air from the exhaust into the sampled environment.

  • Page 67: Index

    VESDA VESDA VLF-500-UL 7Ed Product Guide Index fault 13, 15, 22, 27, 29-32, 34, 40, 49 latching action 15, 25, 29-30, 37, 40, 48-49, 51, 55 features air inlet 6, 8, 11, 18, 29, 39 field service access 9-10, 12, 25-27, 31, 45-...
  • Page 68 VESDA VLF-500-UL 7Ed Product Guide VESDA 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, 51 general purpose input 5, 13, 40, 53 pipe 5-8, 11, 18-23, 25-27, 29, 34, 44, 50-51, 53...
  • Page 69 www.xtralis.com All technical data is correct at the time of publication and is subject to changes without notice. All Intellectual Property including but not limited to trademarks, copyrights, patent are hereby acknowledged. You agree not Doc. No. 36286_A2 to copy, communicate to the public, adapt, distribute, transfer, sell, modify or publish any contents of this Part No.

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