VESDA VLP Maintenance Manual
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VESDA VLP Maintenance Manual

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VESDA
Maintenance Guide
VESDA VLP
VESDA VLS
VESDA VLC
VESDA VLF
VESDA VLI
April 2020
Document: 10256_09
Part Number: 30010

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Summary of Contents for VESDA VLP

  • Page 1 VESDA Maintenance Guide VESDA VLP VESDA VLS VESDA VLC VESDA VLF VESDA VLI April 2020 Document: 10256_09 Part Number: 30010...
  • Page 3 VESDA VESDA Maintenance 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 Maintenance Guide VESDA Document Conventions The following typographic conventions are used in this document: Convention Description Bold Used to denote: emphasis. Used for names of menus, menu options, toolbar buttons Italics Used to denote: references to other parts of this document or other documents.
  • Page 5 This VESDA 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 VESDA Maintenance Guide VESDA This page is intentionally left blank. www.xtralis.com...

  • Page 7: Table Of Contents

    Important Pre-maintenance Preparations Wide Bore Sampling Networks Post-maintenance testing Annual Testing Detector Tests System Fire Panel Notification Tests Replacing Detector Components VESDA VLP and VESDA VLS VESDA VLC VESDA VLF VESDA VLI Parts List VESDA VLP VESDA VLS VESDA VLC...
  • Page 8 VESDA Maintenance Guide VESDA This page is intentionally left blank. www.xtralis.com...

  • Page 9: Introduction

    Xtralis have adopted the fire industry term 'Disable' for the VESDA VLF and all future products. The VESDA VLP, VESDA VLS and VESDA VLC continue to use the term 'Isolate'. Both terms are used throughout this document and have the same meaning.

  • Page 10: Important Pre-Maintenance Preparations

    Failure to disable the system may lead to unwanted alarms and initiation of fire response systems. When the VESDA system has to be disabled, alarms will be displayed but no relays will be tripped. Prior to isolating the VESDA system for maintenance, you must do the following: 1.

  • Page 11: Maintenance Considerations

    Phillips head screwdriver "2" - for removing all detector covers. 6mm Allen Key - for removing the VESDA VLI front cover. 10mm open ended spanner or Carstick - for removing tubes associated with the VESDA VLI detector chamber. PC with Xtralis VSC and a High Level Interface (HLI), HLI model number VHX-0200 or VHX-0210. Xtralis recommends the use of Xtralis VSC and a HLI.

  • Page 12: Unscheduled Maintenance

    Faults can range from minor to urgent and must be dealt with by trained and qualified personnel. A full investigation of any reported fault must be conducted, taking into account all possible causes of the fault. For further information, refer to the VESDA Troubleshooting Guide in the System Design Manual or visit www.xtralis.com. www.xtralis.com...

  • Page 13: Detector Maintenance

    Xtralis VSC Online Help for a list of detector and VESDAnet faults. Should you need to address the 10 instant fault finder faults on the VESDA VLF detector, refer to its Product Guide. Further information on maintenance, part replacement and recommended filter replacement frequency are provided throughout the remainder of this document.

  • Page 14: Checking Airflow

    100 equates to an airflow in liters per minute. Refer to the Xtralis VSC online help for information on how to obtain current raw airflow data for VESDA VLP, VESDA VLS and VESDA VLC products.

  • Page 15: Power Supply Maintenance

    VESDA Maintenance Guide Power Supply Maintenance The VESDA system power supply should be checked, at least, every six months or as required by local codes and standards. VESDA products are designed to operate between 18 VDC and 30 VDC. We recommend, as an absolute minimum, that you check the following: Input voltage - from DC power supply to detector.
  • Page 16 VESDA Maintenance Guide VESDA This page is intentionally left blank. www.xtralis.com...

  • Page 17: Sampling Pipe Network Maintenance

    If damaged or blocked sampling pipes go unrepaired, detector flow faults can occur. Prior to isolating the VESDA system for maintenance, the following important steps must be taken: 1. Inform appropriate supervising authorities about the risk associated with isolating an Address.
  • Page 18 VESDA Maintenance Guide VESDA Capillaries Capillaries can only be installed in environment classes 1 to 4 (refer to Appendix B on page 49). Though not a requirement for environment classes 1 & 2, cleaning of capillary tubes in moderately dirty areas (environment classes 3 &...

  • Page 19: Post-Maintenance Testing

    VESDA VESDA Maintenance Guide Post-maintenance testing Post-maintenance tests should be performed, after a maintenance visit, to determine whether the system is functional. Take the appropriate measures to ensure that this testing does not result in unwanted intervention from response systems, for example, suppression.
  • Page 20 VESDA Maintenance Guide VESDA This page is intentionally left blank. www.xtralis.com...

  • Page 21: Annual Testing

    A sample maintenance and testing log is provided in Appendix C on page 51. Xtralis strongly recommends that all persons who install, commission, service and maintain VESDA systems attend the VESDA accreditation training. Please contact your local Xtralis office for more information.
  • Page 22 VESDA Maintenance Guide VESDA This page is intentionally left blank. www.xtralis.com...

  • Page 23: Replacing Detector Components

    2. Unscrew the recessed phillips head screw (B) in Figure 8-1 below. Figure 8-1: Replacing air filters in VESDA VLP and VESDA VLS detectors 3. Pull out the air filter cartridge (C) in Figure 8-1 above. This will stop the aspirator. If the aspirator does not stop, replace the filter switch.
  • Page 24 Mark out this connector position, if unsure about the cabling. 4. Remove the air filter cartridge. Refer to Figure 8-2. Figure 8-2: Removing the Air Filter Cartridge for VESDA VLP or VESDA VLS aspirator replacement 5. Remove the HPCs securing screw.
  • Page 25 VESDA VESDA Maintenance Guide Legend Filter switch connector socket Aspirator loom connector C Aspirator locking fingers D Move both locking fingers outwards Aspirator (lift upwards) Figure 8-3: Removing the HPC and Disconnecting the aspirator cable loom 8. Locate the two plastic fingers securing the aspirator to the chassis (D) in Figure 8-3 above.
  • Page 26 Replacing the VESDA VLP and VESDA VLS Chassis Select correct replacement unit There are four Chassis/Manifold replacement units available for VESDA VLP and VESDA VLS Detectors. Refer to Table 8-1 below to select the correct part for your detector. Table 8-1: Part Number Selection...
  • Page 27 VESDA VESDA Maintenance Guide Removal Procedure Save configuration and isolate the detector 1. Using Xtralis VSC, make a connection to the detector. 2. Select FILE > SAVE. Provide a configuration file name and select SAVE. 3. Isolate the detector by pressing the ISOLATE button (1) or isolate from within Xtralis VSC.
  • Page 28 2. Disengage the processor card (8) from the retaining clips (9) and turn sideways (as shown) to gain access to the cable connectors. 3. Disconnect the flow sensor cable connector (10) and scanner motor connector (VESDA VLS only) (11) from the processor card.
  • Page 29 Install the chassis assembly and connect cabling 1. Align and install the chassis assembly into the detector housing (10). 2. Connect the flow sensor cable connector (11) and scanner motor cable connector (VESDA VLS only) (12) to the processor card (13).
  • Page 30 VESDA Maintenance Guide VESDA Notes: Ensure that the flow sensor connector (5) is securely connected. Gently support the upper part (6) of the flow sensor cable while installing the chassis assembly (7) and ensure there is no slack in the lower part (8) of the flow sensor cable. A slack on the lower part of the cable will prevent correct alignment of the chassis assembly, which may cause air leaks.
  • Page 31 VESDA Commissioning Guide # 10195 VESDA LCD Programmer Product Guide # 10194 8.1.4 Replacing VESDA VLP and VESDA VLS Termination Cards Note: Disconnect the detector power supply before commencing replacement of the termination card. Only reconnect the 24 VDC power supply once the replacement termination card is secured.
  • Page 32 Inspecting and Cleaning VESDA VLS Valves The VESDA VLS has four valves that open and close to allow the detector to draw air from one sampling pipe at a time. Since the air that reaches the valves has not been filtered, it may contain dust, dirt, and background pollution such as soot or coal dust.

  • Page 33: Vesda Vlc

    3. Undo the recessed philips head filter screw (B) in Figure 8-15 below. 4. Lift out the air filter cartridge. Figure 8-15: Replacing the air filter cartridge in VESDA VLC detectors 5. Insert a new air filter cartridge (A) in Figure 8-15 above.
  • Page 34 VESDA Maintenance Guide VESDA 8.2.2 Replacing the VESDA VLC Termination Card Replacement Procedure 1. Remove the front cover of the detector (refer to Figure 8-15 on page 27). 2. Isolate and power down the detector before you begin. 3. Record all wiring connections to the termination card so that you can connect the replacement card properly.
  • Page 35 VESDA VESDA Maintenance Guide Figure 8-16: Replacing the Aspirator in a VESDA VLC detector 9. Check that the new aspirator has a gasket on the inlet flange and three attached screws. 10. Wipe the manifold outlet flange surface. 11. Secure the aspirator with the three screws.

  • Page 36: Vesda Vlf

    Notes: Prior to any work or maintenance being carried out on the VESDA VLF, take the necessary steps to advise the monitoring authority that power may be removed and that the system will be disabled.
  • Page 37 7. Clip the aspirator (VSP-715 for VESDA VLF-500 or VSP-722 for VESDA VLF-250) into the retaining clip (D) and swing it back into the detector.

  • Page 38: Vesda Vli

    Replacing the VESDA VLI Intelligent Filter The VESDA VLI detector constantly monitors the difference between the flow of filtered and un-filtered air into the manifold. The flow of filtered air decreases when compared to that of un-filtered air as dirt and other particles accumulate in the Intelligent Filter.
  • Page 39 VESDA Maintenance Guide 8.4.2 Replacing the VESDA VLI Secondary Foam Filter To maintain the operational integrity of the detector, it is recommended that the secondary foam filter be replaced every 4 years, or when a filter fault occurs or more often for environments that experience high levels of contamination.
  • Page 40 8. If the replacement aspirator is brand new, execute the Reset Aspirator Life command in Xtralis VSC. 8.4.4 Replacing the VESDA VLI Chamber Assembly Notes: It is important to precisely follow the sequence below in order to avoid kinking the tubes.
  • Page 41 VESDA VESDA Maintenance Guide 5. Remove the two screws (A) holding the chamber (Figure 8-25). Figure 8-25: Remove Chamber Mounting Screws 6. Use a 10mm spanner or a large flat bladed screwdriver to press down on the black ring near the secondary filter (B) whilst simultaneously using the other hand to remove long tube (Figure 8-26).
  • Page 42 VESDA Maintenance Guide VESDA 7. Repeat the step above on the black ring (C) near the aspirator to remove the shorter tube (Figure 8-27). Figure 8-27: Remove Short Tube 8. Gently remove the Chamber. To prevent the tube from kinking, lift the chamber while removing the tube (Figure 8-28).
  • Page 43 VESDA VESDA Maintenance Guide 9. Unlock the connection arms and disconnect the ribbon cable from the main board (Figure 8-29). Figure 8-29: Disconnect Ribbon Cable Install a new Chamber Assembly 1. Ensure that the 24V input is still disconnected. 2. Plug the ribbon cable from the chamber into the main board (Figure 8-29). Ensure that the cable connector is fully in and arms are locked.
  • Page 44 VESDA Maintenance Guide VESDA Figure 8-31: Insert Chamber www.xtralis.com...
  • Page 45 VESDA VESDA Maintenance Guide 5. Insert the short tube into the Cartsick connector under the fan and lower the chamber while inserting (Figure 8-32). Figure 8-32: Lift Chamber 6. Insert the short tube until the white tape touches the black ring on the Carstick connector (Figure 8-33).
  • Page 46 VESDA Maintenance Guide VESDA 7. Insert the long tube near the Secondary Foam Filter Carstick connector and lower the chamber whilst inserting (Figure 8-34). Figure 8-34: Insert Long Tube 8. Insert the long tube until the white tape touches the Carstick connector.
  • Page 47 If the detector's event log indicates a faulty flow sub-system, the Ultrasonics Manifold may require replacement. The VESDA VLI Ultrasonics Manifold, spare part number VSP-036, is comprised of two components: Aspirator Manifold Assembly (Figure 8-36) Ultrasonics Manifold Assembly (Figure 8-37)
  • Page 48 VESDA Maintenance Guide VESDA 6. Remove the Aspirator Manifold Assembly (A) (Figure 8-39): Disconnect the tube (B) as shown in 8.4.5. Press the collar around the tube inwards and gently pull the tube outwards. The tube cannot be disconnected if the collar is not pushed inward evenly.
  • Page 49 VESDA VESDA Maintenance Guide 7. Remove the metal Intelligent Filter Bracket (Figure 8-41). Remove 4 screws (A). Disconnect the Intelligent Filter Switch Cable (B). Lift the bracket away from the base. Figure 8-41: Remove Screws 8. Disconnect the Main Controller to Ultrasonics Micro Board ribbon cable (C) (Figure 8-41).
  • Page 50 VESDA Maintenance Guide VESDA Install the replacement Ultrasonics Manifold 1. Ensure that the 24V input is still disconnected. 2. Follow the removal procedure in reverse order. Replace both the Aspirator Manifold Assembly and the Ultrasonics Manifold Assembly with the new spare parts.

  • Page 51: A Parts List

    Imperial Pipe Adaptors (25 mm to 27 mm) (4 off) (US only) VSP-100 Blank plate with FIRE 1 & OK LEDs, non-EMC painted, with VESDA logo VSP-101 Blank plate with French FIRE 1 & Fault (FF) LEDs, non-EMC painted, with...

  • Page 52: Vesda Vlc

    VESDA Part Description number VSP-101 Blank plate with French FIRE 1 & Fault (FF) LEDs, non-EMC painted, with Printed logo VSP-200 Blank plate, EMC painted, without VESDA logo VSP-540 Exhaust Deflector (black) VESDA VLC Part number Description VSP-005 Filter Cartridge...

  • Page 53: Accessories

    0-relay Remote termination card (RTC0) VSP-008 7-relay Remote termination card (RTC7) VSP-016 12-relay Head Termination Card (HTC12) VSP-200 Blank plate, EMC painted, without VESDA logo VSP-208 12-relay Remote termination card (RTC12) VSP-300 Blank plate, non-EMC painted, without VESDA logo Accessories...
  • Page 54 VESDA Maintenance Guide VESDA This page is intentionally left blank. www.xtralis.com...

  • Page 55: B Recommended Frequencies For General Maintenance And Filter Replacement

    Note: The VESDA VLI detector is designed for use in industrial applications and harsh environments. The detector monitors the condition of consumable components and will raise faults when a filter requires replacement. Refer to the VESDA VLI Product Guide for further information.
  • Page 56 VESDA Maintenance Guide VESDA Environment Typical Application Background Smoke Recommended Filter Recommended Factors that may affect filter Class Level Replacement Maintenance Period replacement frequency. Frequency Recommendations of use Partially enclosed, no air-conditioning but Usually less than 0.03% At least every 18 months At least every 12 months High relative humidity, frequent may use extraction system from time to obs/m {<0.01% obs/ft}...

  • Page 57: C Example Of A Typical Maintenance Log

    VESDA VESDA Maintenance Guide C Example of a Typical Maintenance Log Customer: Date of visit: Site: Technician’s name: Service company name: Address: Phone number: Visit type: scheduled / fault call out / annual test (circle appropriate visit) Before you record any more information: 1.
  • Page 58 VESDA Maintenance Guide VESDA Have you done the Comments following? reviewed service history Yes / No checked power Yes / No supply/UPS checked battery backup Yes / No checked battery charging Yes / No tested fire alarm and fault Yes / No...

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