Xtralis VESDA Maintenance Guide
Contents
1. VESDA detectors must not be connected or disconnected to a PC while the equipment is powered in an FM Division 2 hazardous classified location defined by FM 3611 FM Approved Applications The product must be powered from VPS 100US 120 VPS 100US 220 or VPS 220 only ONORM F3014 ONORM F3014 transport times for all tubes including capillaries must not exceed 60 seconds from any hole This means that the pre designed pipe networks that include capillaries cannot be used AS1603 8 The performance of this product is dependent upon the configuration of the pipe network Any extensions or modifications to the pipe network may cause the product to stop working correctly You must check that ASPIRE2 approves alterations before making any changes ASPIRE2 is available from your VESDA ASD distributor AS1851 1 2005 Maintenance Standards Wherever this document and the AS1851 1 differ AS1851 1 should be followed in preference to this document European Installations The product must use a power supply conforming to EN54 Part 4 www xtralis com iii Xtralis VESDA Maintenance Guide Xtralis VESDA iv www xtralis com Xtralis VESDA Xtralis VESDA Maintenance Guide Table of Contents ERAM ires erena ol a E T ARNS RPPS PNR a a IME RP 3 WMT SCOP e E E TE covasens Oealevetl sini todeedeg E SENTA Shea ARSAM E a ca 3 12 Brief Outline x aretsrss perco siaars eai aa a TEA ESEC SSD Ca ara LED Res AO Cep CAD sata 3 1 3 Maintenance Ov2. Remove all pipes from the detector inlet s and exhausts then cover them to ensure that no further dust can enter the detector Ensure that end caps are set firmly in place Connect a vacuum cleaner to the detector end of each pipe in turn When turned on it will extract dust and contaminants that have built up inside the pipes 8 Alternatively introduce compressed air 400 KPa for 2 minutes at the detector end of each pipe in turn to blow dust and contaminants out through the sampling holes 9 Take precautions to ensure that dust is not blown into undesired areas Ensure that end caps are still set firmly in place 10 Compare the before and after flow rates Ideally the flow should be close to 100 for each used pipe If this is not the case the capillaries and detector may need closer inspection If the sampling pipe network appears to be OK continue with the remainder of this section to determine the cause of the reduced airflow 11 Once the system has been serviced cleaned tested and is operating fault free return it to its normal operating mode OF Qn No Sites with dirty environments which require very regular sampling and exhaust pipe cleaning should consider installing automated equipment to assist with regular cleaning schedules 10 www xtralis com Xtralis VESDA Xtralis VESDA Maintenance Guide For more information refer to Xtralis s Application Note VESDA Air Sampling for Ducts available on our website
3. Xtralis VESDA Maintenance Guide Document Number 10256 08 Part Number 30010 4 xtralis VESDA Xtralis VESDA Xtralis 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 This document is subject to copyright owned by Xtralis AG Xtralis You agree not to copy communicate to the public adapt distribute transfer sell modify or publish any contents of this document without the express prior written consent of Xtralis Disclaimer The contents of this document is provided on an as is basis No representation or warranty either express or implied is made as to the completeness accuracy or reliability of the contents of this document The manufacturer reserves the right to change designs or specifications without obligation and without further notice Except as otherwise provided all warranties express or implied including without limitation any implied warranties of merchantability and fitness for a particular purpose are expressly excluded General Warning This product must only be installed configured and used strictly in accordance with the General Terms and Conditions User Manual and product documents available from Xtralis All pr
4. 1 Inform appropriate supervising authorities about the risk associated with isolating a VESDA Address 2 Ensure that any ancillary devices dependent on the detector are appropriately isolated Warning Inhalation of dust is hazardous to health Dust build up may contain potentially dangerous toxic materials All cleaning processes must be suitably modified in such instances to negate the risk from toxic materials Adequate precautions must be taken to comply with local health and safety regulations 4 2 Cleaning Sampling Pipes For environment classes 1 amp 2 it is recommended that the sampling pipe network be checked every two years However your system s environment will affect this so refer to Appendix B Recommended frequencies for general maintenance and filter cartridge replacement on page 29 The scheduled period should be reduced to suit harsh site environments Note Local code guidelines may require more frequent inspections for all classes Where possible sampling pipes and their connections should be checked to ensure that the pipe runs are intact and that the network is free of dirt and dust Follow the instructions below to clean your sampling pipe network Ensure that detectors are isolated from the monitoring panel and fire suppression systems Notify the relevant authorities that the work is being performed Check and record the current airflow for before and after comparison Disconnect the detector power supply
5. At least every 24 months code requirements typically call for 12 month Service Intervals At least every 12 months Factors that may affect filter replacement frequency Recommendations of use Higher clean room classification protection of other areas such as wet bench subject to contamination due to frequent access or minor building leakage Frequent access and or excessive building leakage doors connected to a highly polluted ambient environment infrequent HVAC maintenance high relative humidity activities such as cooking production dusty spaces like ceiling void suspension floor regular wash downs Low ceiling higher airborne particles level high relative humidity May require water trap in high humidity climate 29 Xtralis VESDA Maintenance Guide Xtralis VESDA Typical Application Recommended Filter Recommended Factors that may affect filter Maintenance Period replacement frequency Recommendations of use Partially enclosed no air conditioning but Usually less than 0 03 At least every 18 At least every 12 High relative humidity frequent may use extraction system from time to obs m lt 0 01 obs ft months months wash down May require water time Usually industrial sites with trap in high humidity climate noticeable air pollution loading bays dusty production underground platform equipment rooms facilities using natural air ventilation Open environments airborne particle Usually
6. Important Note Isolate and power down the detector before you begin Follow the instructions below to replace VLP and VLS detector modules 1 Insert a screwdriver at the top between the Module and the Front Cover refer to Figure 4 Removing the VLP or VLS front cover for chassis replacement on page 18 Gently remove the module from the front cover by levering the screwdriver Disconnect the wire loom from the module processor card Connect the wire loom to the respective 10 or 11 way connector s on the module processor card Secure the modules to the front cover by gently snapping the module into place ensuring that none of the EMC Screening is trapped 6 Power up the detector OL oe ho 7 11Inspecting and Cleaning VLS Valves The 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 To inspect and clean VLS valves follow the instructions below 1 Remove the pipes leading into the VLS detector 2 Press and hold down the Silence Scan button on the front of your VLS detector The valve scan test will start If your VLS does not have a Silence Scan button use your PC and Xtralis VSC to start the valve scan test step 3 to 6 Logon to Xtralis VSC Select the VLS detector from the Device Tree Select Device from the Main Menu Select
7. Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception the user is encouraged to try to correct the interference by one or more of the following measures re orientate or relocate the receiving antenna increase the separation between the equipment and receiver connect the equipment to a power outlet which is on a different power circuit to the receiver or consult the dealer or an experienced radio television technician for help FDA 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 The laser emits invisible light and can be hazardous if viewed with the naked eye Under no circumstances should the detector chamber be opened FM Hazardous Applications 3611 Hazardous Approval Warning Exposure to some chemicals may degrade the sealing of relays used on the detector Relays used on the detector are marked TX2 5V G6S 2 5V or EC2 5NU
8. Start Manual Scan Test A dialogue box confirms that you wish to proceed with the test Select Yes to continue Once the valve scan test is complete look inside the inlet ports to see that the valves are periodically opening and closing Also look for evidence of a build up of dirt 8 If dirt is found you will need to remove the chassis before flushing the valves Refer to Replacing VLP and VLS chassis on page 18 for details 9 Remove the air inlet manifold and clean it with compressed air The manifold is sensitive so do not clean with more than 87 KPa 6 bar compressed air 10 Once clean reassemble the detector and perform a test to ensure system integrity Sa Ro E www xtralis com 25 Xtralis VESDA Maintenance Guide Xtralis VESDA 26 www xtralis com Xtralis VESDA Xtralis VESDA Maintenance Guide A Parts List DO spot Progemmemodio O O O O OOOO OS Ve eyw OOS O eeo fritercame O O O O O O O OOOO O VSP MP Detector Chassis Assembly complete wih Manifold Detector Cover Assembly complete with EMC shields _Nsp 014_Telay Head Termination Card HTC7 OoOo O O vspors MP Detector Aspirator Assembly DO por eco SS o VSP Imperial Pipe Adaptors 25 mm to 27 mm 4 off US only spo Bank plate with FIRE 1 amp OK LEDs non EMC painted with VESDAlogo VSP 101 Blank plate with French FIRE 1 amp Fault FF LEDs non EMC painted with Printed logo VSP Bank plate EMC painted without VESDAlogo O ses Exhaust Defector back O
9. Time This figure should be consistent with your previous maintenance visit or your original commissioning documentation Refer to your local standards for allowable variations 7 Local detector display Ensure that the detector s front panel display responds appropriately to any faults and smoke levels within the time specified in your local code guidelines 8 Relay performance Ensure that the detector s fire and fault relays are functioning correctly 9 Remote detector display Ensure that any associated remote detector displays if installed respond appropriately to any faults and smoke levels within the time specified in your local code guidelines 10 Record results Xtralis recommends that you photocopy the sample maintenance log in Appendix C Example Of A Typical Maintenance Log on page 31 and record all results on the copy Store the log in an appropriate known location on site 11 Compare all results to previous recorded tests Ensure that there is no degradation in performance If a noticeable change is observed maintenance of the detector and or sampling pipe network may be necessary 12 Schedule next visit Determine the appropriate time for the next site visit by referring to Appendix B Recommended frequencies for general maintenance and filter cartridge replacement on page 29 6 2 System Fire Panel Notification Tests Your detector alarm and fault tests should register on the monitoring system within a time frame
10. a stable and correct state for 15 minutes review the event log to monitor the background smoke level Check this value against the Environment Class Appendix B Recommended frequencies for general maintenance and filter cartridge replacement on page 29 to determine the next scheduled maintenance period Set the filter timer to reflect the correct environment Compare the background smoke level with that recorded during previous maintenance visits While the background smoke level should be the same it may be different if your environment has changed If a difference in background smoke level cannot be explained by a change in your environment you should do one or all of the following clean the detector clean the sampling pipe network and or change the filter If you do any or all of these you should re check the background smoke level before proceeding Compare the before maintenance and after maintenance flow rates Ideally the flow rate should be close to 100 for each used pipe If this is not the case check the sampling pipe network for loose connections or obstructions If necessary clean the detector and sampling pipe network refer to Sampling Pipe Network maintenance on page 10 If the sampling pipe network is OK review the event log If the event log does not show any unexpected flow faults normalize the raw airflow Once the detector and sampling pipe network have been serviced cleaned tested for testing instructions ref
11. above 0 03 At least every 12 At least every 6 months Refer to Class 6 Special Case clearly visible sometime require wash obs m gt 0 01 obs ft months May require water trap in high down to maintain acceptable health humidity climate standard for occupants May use extensive stage smoke or fog Applications like amusement park rides coal fired power station fertiliser factory waste treatment tunnels bus terminals etc Usually fits within High and Extreme Closely monitor for the Closely monitor for the Consult with Risk Manager refer definitions Regular fumigation such as first 3 to 6 months to first 3 to 6 months to to local codes standards and tobacco storage corrosive radiative develop a filter develop a maintenance regulations to ensure irregular process high level of fine dusty replacement guideline schedule compliance Regular smoke tests environment such ascement textile are required May require water welding oily steamy etc trap in high humidity climate 30 www xtralis com Xtralis VESDA Xtralis VESDA Maintenance Guide C Example of a Typical Maintenance Log esme o es o Ste o o emos Service comparyname mws O S Phone numbers Before yourecordany more infomation SSS S o O in pipe sampling holes www xtralis com 31 Xtralis VESDA Maintenance Guide Xtralis VESDA Have you done the following P reviewed service history Comments E checked powersupyues resina
12. airflow in each sampling pipe by following the instructions below 1 Check the recent airflow data recorded in the event log Look for flow faults that endured for a considerable period of time or frequent normalizations If there are repeated flow faults or detector normalizations in the event log detector and system cleaning may be required 2 Fix any problems from the list above blockages for example If there are no obvious problems use Xtralis VSC to check the raw airflow through the detector VLP VLS and VLC only 3 Compare the raw airflow against previous historical data Notes e Progressive decreases in the raw airflow readings may indicate a blockage developing inside the sampling pipe network An unexpected reduction of airflow over an extended period of time may indicate that pipe cleaning is urgently required e Record separate raw airflow results for each sampling pipe When comparing successive raw airflows ensure that the values compared are for the same sampling pipes and check that the pipe network has not changed recently e The VLF measures flow in liters per minute not raw airflow unless it has a VESDAnet card in which case it displays a value that when divided by 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 VLP VLS and VLC products 2 7 Checking the Filter When checking the filter compare the date of insta
13. at www xtralis com Note For in duct sampling remove the pipe s from the duct and follow the cleaning process Once cleaning is complete return the pipe s to their original angle usually 45 to the airflow 4 3 Cleaning Sampling Holes We suggest that sampling holes are cleaned at least once every two years This is a recommended interval for environment classes 1 amp 2 but your environment will have an effect on how often sampling holes require cleaning refer to Appendix B Recommended frequencies for general maintenance and filter cartridge replacement on page 29 The scheduled period should be reduced to suit harsh site environments Cleaning is required to remove any dust build up and to ensure that the in pipe sampling holes are not blocked To clean in pipe sampling holes follow the instructions below Ensure that detectors are isolated from the monitoring panel and fire suppression systems Notify the relevant authorities that work is being performed Check and record the current airflow for before and after comparison Disconnect the detector power supply Remove all pipes from the detector inlet s and exhausts then cover them to ensure that no further dust can enter the detector Connect a vacuum cleaner to each in pipe sampling hole in turn to extract dust and contaminants that have built up 7 Alternatively introduce compressed air 400 KPa for 2 minutes at the detector end of the pipe to blow dust and contaminan
14. detectors on page 16 Isolate and power down the detector before you begin Record all wiring connections to the termination card so that you can connect the replacement card properly Disconnect the wiring for power communications and relays from the 45 deg screw terminals Remove the four screws securing the termination card Disconnect the 3 way aspirator cable loom from the connector on the termination card Disconnect the 5 way front panel LED cable from the termination card Gently pull the termination card away from the interface card connected behind www xtralis com Xtralis VESDA Xtralis VESDA Maintenance Guide 9 Secure the replacement termination card with the four screws 10 Reconnect the 3 way aspirator cable loom to the connector on the termination card 11 Reconnect the 5 way front panel LED cable to the termination card Note Both the 3 way aspirator cable and the 5 way front panel LED cable are keyed so that they can only be connected in one orientation 12 Reconnect the wiring for power communications and relays to the 45 deg screw terminals 13 Check that all wires are secured to their correct terminals 14 Power up the detector and check that the aspirator is running 15 Resolve all Fault conditions 16 Close the detector 17 Reset Isolate to normal conditions and check that the airflow has returned to the level it was at before disassembly 7 10Replacing VLP and VLS Detector Modules Note
15. e Ensure that the detector remains powered up during filter replacement and that a new filter cartridge is available The procedure and diagrams outlined below provide the steps to be followed when replacing the air filter cartridge in the VLF detector 1 Push in the security tab and lift up the field service access door A in Figure 7 3 below Set the detector to Standby mode by pressing the Disable button for 6 seconds The Disabled LED begins to flash rapidly After releasing the Disable button the disabled LED will flash more slowly 3 Undo the recessed retaining screw C and pull out the old filter B in Figure 7 3 below Field service access door B Air filter cartridge c D Filter switch Figure 7 3 Replacing the air filter cartridge in a VLF detector 3 Using your finger firmly press the filter switch D in the filter recess of the detector 5 times within 5 seconds to confirm with the detector that a new filter is about to be installed see inset A LED next to the serial interface will flash each time you push the filter switch and will continue flashing once you have successfully pressed the switch 5 times in 5 seconds Insert the new filter VSP 005 and tighten the retaining screw Press the Disable button for 6 seconds to return the detector to normal operating mode Record the filter replacement date on the filter Close the field service access door E OO www xtralis com 17 Xtralis VESDA Maint
16. need to be taken prior to removing the front cover from the detector otherwise damage may occur The following Aspirator removal instructions assume normal mounting refer to Figure 12 below Disconnect power to the detector Push in the security tab and lift up the field service access door Unscrew the two front cover retaining screws lift and swing down the front cover Only disconnect the fan wiring loom from the connection point E at the aspirator Undo the retaining screw on the aspirator A Swing the aspirator out then lift and remove it from the detector oS Oe hs Notes e Any time the aspirator is removed ensure that the area surrounding it is clear of dirt and debris before it is replace e Care must be taken during aspirator replacement The aspirator must be correctly seated this is essential to ensure that gaskets are not damaged or dislodged from the underside of the aspirator 7 Clip the aspirator VSP 715 for VLF 500 or VSP 722 for VLF 250 into the retaining clip D and swing it back into the detector 8 Tighten the retaining screw A but do not over tighten 9 Reconnect the fan loom to the aspirator E 10 Replace the front cover and screw it into place 11 Close the field service access door 12 Reconnect the power to the detector Aspirator securing screw Swing aspirator out to remove Retaining clip points Fan loom connector must be disconnected here Figure 7 12 Replacing the as
17. A filters fitted strictly maintained to high standards of cleanliness such as Clean Room classification 1 10 100 in accordance with US Federal Standard 209D computer rooms with restricted access medical facilities with positive pressure installations within medical and semiconductor equipment etc Usually less than 0 006 obs m average lt 0 002 obs ft average Fully enclosed and usually air conditioned with some filters fitted high Usually between 0 006 0 009 obs m 0 002 airflow extraction systems or standalone 0 003 obs ft AHU routinely maintained to acceptable health recommendations for occupants Frequent access May be multi function facility General office building telecommunication base station equipment switch rooms shopping mall heritage building churches document storage and general warehouse type building including cold storages with high ceiling Similar to Environment Class 2 in Usually less than countries with high levels of pollution and 0 015 obs m no filtration of outside air Facilities with lt 0 005 obs ft light industrial sites manufacturing and processing without noticeable airborne particles prison cells etc www xtralis com Recommended Filter At least every 60 months At least every 36 months At least every 24 months Recommended Maintenance Period At least every 24 months code requirements typically call for 12 month Service Intervals
18. O checked batendo resto O checkedbatemchagoo esto O tested fre alarm and fault notfcalon at detector fest tested fre alarm and fault notification at monitoring system fesiNo compared current results to commissioning deta Pemo returned the system to normal operaton mode Pemo Record any other activities undertaken Record filter replacement frequency months Exp Date Po Technician Site Manager 32 www xtralis com
19. OOO O vom Programmermo do SSS VSP 021 Imperial Pipe Adaptors 25 mm to 27 mm 4 off US only VSP 100 Blank plate with FIRE 1 amp OK LEDs non EMC painted with VESDAlogo VSP 101 Blank plate with French FIRE 1 amp Fault FF LEDs non EMCpainted with Printed logo Imperial Pipe Adaptors 25 mm to 27 mm 4 off US only www xtralis com 27 Xtralis VESDA Maintenance Guide Xtralis VESDA SPOR Imperial Pipe Adaptors 25 mm to 27 mm 4 off US only O vsrs o fExmausiDetecorbado O OOOO S eemo Mr Remote DisplayModlo O OCO OOOO CO es MESA OOOO CO sema Mro O O Modules _VSP 001ProgrammerModule SSS O seyma OOOO _ vse 004 Scanner DisplayModule SSS O vsroor o elay Remote termination card ATCO Pepo relay Remote termination card RTT O vseono 12elay Head Termination Card HTCT2 oooO O yspzoo Blank pate EMC painted without VESDAlogo Wvsr 208 2elay Remote termination card RTCT2 OoOO vs 300 Bank piate non EMC painted without VESDAIogo vso Detector Relay Processor Module lank DRP 7 ysp os Scanner Relay Processor Module Blank DRP vamo Blank plate EMC painted without VESDAlogo J s 300 Blank plate nor EMC painted without VESDAIogo 28 www xtralis com Xtralis VESDA Xtralis VESDA Maintenance Guide B Recommended Frequences for General Maintenance and Filter Cartridge Replacement Typical Application Fully enclosed and strictly no leakage fully air conditioned usually with HEP
20. card assembly A from the aspirator B as shown in Figure 7 10 Exhaust pipe elbow with filter card switch Figure 7 10 Removing the Exhaust Pipe Elbow and Aspirator Reattach the exhaust pipe elbow and filter card assembly A to the aspirator B exhaust outlet as shown in Figure 7 10 above Wipe the manifold outlet flange surface if dirty Slide the aspirator between the fingers until fingers lock over aspirator Check that the aspirator does not come off when lifted Reconnect the aspirator cable loom to the cable socket on the HPC Secure the HPC to the chassis ensuring that the card locks under the plastic fingers Place the insulating sheet over the HPC and secure it with the screw Re attach the air filter cartridge Re connect the cable loom to the module on the front panel Check that all wires are secured to the connectors or terminals Power up the detector and check the aspirator is running Close the detector Refer to Figure 7 4 www xtralis com 21 Xtralis VESDA Maintenance Guide Xtralis VESDA 7 6 Replacing the VLC Aspirator Aspirators in VLC detectors are replaced as follows oS ONO 22 Isolate and power down the detector Remove the four screws securing the termination card Disconnect the aspirator cable loom from the connector on the aspirator Gently pull the termination card out away from the interface card connected behind Take care not to dislodge any wires connected to the terminat
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22. consistent with local standards System notification results should be recorded in the detector maintenance log 14 www xtralis com Xtralis VESDA Xtralis VESDA Maintenance Guide 7 Replacing Detector Components 7 1 Replacing VLP and VLS Filter Cartridges The service interval of an air filter depends upon the environment You can use the LCD Programmer or Xtalis VESDA PC Software guides to change the service interval for filters The system will generate a minor fault when the filter has reached 80 and an urgent fault when it reaches 120 of its capacity We recommend that the installation date and replacement date be written on the air filter cartridge label as a physical reminder of when the next service is expected Note Important Note The detector must have the power turned on while the air filter cartridge is being replaced The procedure and diagrams outlined below provide the steps to be followed when replacing the air filter cartridge in the VLP and VLS detectors 1 Slide down and remove the air filter cover A in Figure 1 below 2 Unscrew the recessed phillips head screw B in Figure 1 below Figure 7 1 Replacing air filters in VLP and VLS detectors a Pull out the air filter cartridge C in Figure 1 above This will stop the aspirator If the aspirator does not stop replace the filter switch Insert the replacement air filter cartridge VSP 005 Tighten the filter screw Replace the air filter cove
23. derations Before beginning system maintenance the important considerations are as follows e What will the maintenance schedule be e What maintenance procedures will be required e What unscheduled maintenance needs may arise 2 2 Equipment Required In order to properly maintain the Xtralis VESDA system you will require the following equipment e Phillips head screwdriver 1 length 90 mm minimum for filter replacement e Phillips head screwdriver 2 for removing all detector covers e 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 However a hand held programmer could also be used for this purpose Vacuum cleaner Air compressor Spare parts refer to Appendix A Records for commissioning and a maintenance history Maintenance logs or record sheets The original ASPIRE2 design file and commissioning history optional 2 3 Determining a Maintenance Schedule The background smoke readings recorded in the Xtralis VESDA detector event log provide a representative value for the protected environment Use of these logs allows the recommended filter replacement frequency to be calculated a maintenance program developed and a maintenance schedule determined Xtralis VSC can be used to access the event log to determine the average background smoke level Average smoke levels over a 15 minute period minimum where condition
24. dures This section provides instructions for the regular maintenance of detectors If you need to address faults refer to the Troubleshooting Guide for a list of VESDAnet faults Should you need to address the 10 instant fault finder faults on the VLF detector refer to its Product Guide Further information on maintenance part replacement and recommended filter cartridge replacement frequency are provided throughout the remainder of this document Note Xtralis recommends that you record all work you perform in a maintenance log such as that in Appendix C Example Of A Typical Maintenance Log on page 31 If you do not need to determine a maintenance schedule continue with the instructions listed below 1 Ensure that the detectors are isolated from the monitoring panel and suppression systems Notify the relevant authorities about the work to be performed and the risks associated with isolating a VESDA address 3 Check for and record any detector faults 4 Ifa filter fault is displayed the current filter is older than the recommended filter replacement frequency Replace the filter according to the detector s guidelines making sure that you write the date of replacement on the label and take measures to order stock VSP 005 for the next replacement date For detector specific filter replacement instructions refer to Replacing VLP and VLS filter cartridges on page 15 Replacing the VLC filter cartridge on page 16 and Replacing the VLF fi
25. e _ July 2008 July 2006 July 2004 July 2000 July 1997 Table 2 1 Color codes for filter date of manufacture 4 Check for and record any detector faults 5 Prior to downloading the smoke event log use Xtralis VSC to check the significant smoke change setting If it is still at the factory default value of 0 02 obs m 0 0063 obs ft or some other value record it then change it to 0 005 obs m 0 0015 obs ft 6 Run the detector for 15 minutes minimum longer is recommended in very stable or clean environments 7 Download and save the event log for comparison of smoke readings during normal operation 8 Determine the detector s background smoke level and estimate the average recorded level for typical operation during the test period 9 Compare the results with Appendix B Recommended frequencies for general maintenance and filter cartridge replacement on page 29 to determine your system s environment class 10 Based on your system s environment class establish an appropriate detector and filter maintenance schedule 11 Using Xtralis VSC set the filter service timer to the value in days given in Appendix B Recommended frequencies for general maintenance and filter cartridge replacement on page 29 12 Using Xtralis VSC retum the significant smoke change setting to its original value 13 Proceed to the next section or if your system is showing no faults return it to its normal operating mode 2 4 Maintenance Proce
26. e cece cece eeeeeeeeeeeeeeeeeeeeeeneeeeeeeeeeeeeeeeeeeeeeeeeeeeeees 23 7 8 Replacing VLP and VLS Termination Cards cceeccseecnceeeeeeeeeeesececeeneneeeeeseseeseneeeeess 24 7 9 Replacing the VEC Termination Cards sc2ccccpaccs ncsnnenenesdapnidsencednctaengas dela dubia danandndadibepeenteas 24 7 10 Replacing VLP and VLS Detector Modules ee eneesececeeneeeeeenseseeseneeeeeees 25 7 11 Inspecting and Cleaning VLS ValVeS s cceccccceeeeeeenseescecceneeeeseseenescseneeeeeeseeenesseneeeeeees 25 Ro PANS US Essa oa anda T E AATE 27 B Recommended Frequences for General Maintenance and Filter Cartridge Replacement 29 C Example of a Typical Maintenance LOd ecccsssseeceeeseeeeeeeeseeeeeeneeeneeeeeseseeeeeesseeneeseseeeeeeees 31 www xtralis com 1 Xtralis VESDA Maintenance Guide Xtralis VESDA 2 www xtralis com Xtralis VESDA Xtralis VESDA Maintenance Guide 1 Introduction 1 1 Scope This Maintenance Guide provides essential information for service personnel maintaining Xtralis VESDA systems It includes suggestions for a maintenance schedule and instructions on servicing the different Xtralis VESDA detector components Knowledge about local fire regulations electrical codes and standards is assumed Anyone responsible for maintenance should possess this knowledge Note Important Note Xtralis strongly recommends that all persons who install commission service and or maintain X
27. e chassis by the aspirator assembly Release the two lower locking tabs by lifting the chassis upward and pulling outward Use a screwdriver to assist with tab release if necessary Refer to Figure 7 6 below Note The part number for the VLP chassis is VSP 006 for the VLS chassis the part number is VSP 009 Figure 7 6 Removing the VLP or VLS chassis A Caution Care must be taken not to damage the cable running to the manifold Note The detection chamber head processor card and flow sensors are factory calibrated as a matched set Separating the set and replacing it with components from another set may cause the Detector to malfunction requiring re calibration at the factory 8 Disconnect the flow sensor lead 9 Unscrew the manifold retaining screws 10 Remove the Manifold by sliding it downward away from the pipe network as shown in Figure 7 7 Figure 7 7 Removing Pipe Inlet Manifold during VLP and VLS chassis replacement 11 Attach the replacement Manifold and Chassis by reversing the procedure above Note Ensure that power is turned off before reconnecting Data cables All Data cables must be connected properly before power is turned on Failure to observe this requirement may cause data corruption that requires factory re calibration www xtralis com 19 Xtralis VESDA Maintenance Guide Xtralis VESDA 12 Configure the Node using Xtralis VSC or Xtralis VSM4 by highlighting the Detector in the Device Tree Window and
28. ectors are isolated from the monitoring panel and fire suppression systems Notify the relevant authorities that work is being performed Check and record the current airflow for before and after comparison Disconnect the detector power supply Remove all pipes from the detector inlet s and exhausts then cover them to ensure that no further dust can enter the detector Remove the capillary tubes from the sampling pipe and unscrew the sampling end pieces if applicable OV ON D www xtralis com 11 Xtralis VESDA Maintenance Guide Xtralis VESDA 7 8 9 10 11 12 13 Clean out the capillary tubes and sampling end pieces with a vacuum cleaner or compressed air source Visually check that each part has a clear air path Reassemble the sampling end pieces if applicable and connect them to the capillary tubes Reconnect the capillary tubes to the sampling pipe network ensuring that there are no kinks If the sampling pipe network is also to be flushed do not reconnect the capillary tubes until this has occurred Compare the before and after flow rates Ideally the flow should be close to 100 for each used pipe If this is not the case the pipe network and detector may need closer inspection If the sampling pipe network appears to be OK continue with any remaining maintenance tasks to determine the cause of reduced airflow Once the system has been serviced cleaned tested and is operating fault free return it to it
29. enance Guide Xtralis VESDA 7 4 Replacing VLP and VLS Chassis You must disassemble the VLP or VLS detectors before replacing their chassis as follows 1 Isolate the detector by pressing the isolate button on the zone configured display or by selecting Isolate Zone from the Zone menu in VSC or VSM4 This isolates the output from the detector to a fire alarm panel or monitoring system 2 Save Node Configuration by using Xtralis VSC or Xtralis VSM4 highlight the detector in the device tree window and select Save Node Configuration from the Device menu 3 Turn off the power by disconnecting the power cables 4 Remove the front panel by first opening the cover plate and screw covers then unscrewing the cover plate screws as shown in Figure 7 4 below Figure 7 4 Removing the VLP or VLS front cover for chassis replacement 5 Disconnect the data cables that connect the chassis assembly to the termination card These include the front panel modules if fitted and manifold behind chassis Refer to Figure 7 5 Note Performing this step with live power can result in lost detector calibration data Should this occur detector warranties shall be void and service charges will be incurred Figure 7 5 Removing data cables for VLP or VLS chassis replacement 18 www xtralis com Xtralis VESDA Xtralis VESDA Maintenance Guide 6 Unscrew the 2 recessed retaining screws D in the Figure 7 5 above 7 Remove the chassis holding th
30. er to Post maintenance testing on page 13 and are operating fault free return the system to its normal operating mode 2 5 Unscheduled Maintenance There will be occasions where unscheduled detector maintenance is required Such instances are often the result of fault conditions Faults can range from minor minor low airflow pipe 2 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 Xtralis VESDA Troubleshooting Guide in the System Design Manual or visit www xtralis com vesda www xtralis com 7 Xtralis VESDA Maintenance Guide Xtralis VESDA 2 6 Checking Airflow Every time you visit a site it is recommended that you check and record the airflow in each sampling pipe The current percentage airflow readings indicate any changes in airflow percentage since the last airflow normalization These readings may not indicate the absolute increase or decrease in airflow through the sampling pipe network Airflow changes could be a result of one of the following e Blockages within sampling pipes at sampling holes or in capillary tubes e Leaks in sampling pipes or at pipe junctions e Airflow changes introduced by building ventilation systems changes in sampling pipe network layout or pipe length etc e Aspirator degradation e Detector contamination Check the
31. erview Who and When tees eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeneenaaaees 3 1 4 Important pre maintenance preparations aerea aeee aeraaaraaana 4 1 5 Maintenance Schedule Summary iienesasacccecerarinaa sanar raeatareana aaa aannniea 4 2 Detector Maintenance vii cissascsn ga setecsssceselawnatecgubacentassieansieenedsadernstuuneeseshcseensatantaneNccheniedunisbendteeacsraes 5 2 1 Maintenance Considerations 2 secs sieacadseysonayanves scenes cares caseh seeetceeeeeeeeeyebeay gun as caves neeceeeneee 5 2 2 Equipment Required ccccccccccccccccceccceecceecceecceecceeeeceeecececececececeeecececeseneeceaeseeeesaesanesnaeeaaas 5 2 3 Determining a Maintenance Schedule cccccccccccseceneeceesesneenececeeeeeeeeeeeseeeneeeeteeseeeeeseenee 5 dd Maintenance Procedures isc iiectiiet tues ecouscs gut Dani g E E AA TEA ET ai aaa a 6 2 5 Unscheduled Maintenance s sasrsipieasatoa psagra soa Gra da Riel agedts Pirai ua race Uke hides atentadeegivenslnnenes 7 20 CHECKING Airflow sch putas Peas Gi cones need i a a nese deel da dents A aaa E Das toa A Sa 8 2 Checking the FING E setas iiaeaa Annes af aU GDA us DARDOS UEBA dead Sr ie 8 Power Supply Maintenance cccccseecceseseeeeeeseseeeeeesseeeeeeeesseneeseesseeeseeesseneesesseneaaeeseseeeaeessennaeeeees 9 Sampling Pipe Network Maintenance cecccseeeeeeeeeeeeeeeeeneeeneeeeneeeeeeeeasseeeeeeeseneeeeeeeseeeeeeeeees 10 4 1 Important Pre maintenan
32. highlighting Restore Node Configuration from the Device Menu or reprogram the detector using the LCD Programmer 7 5 Replacing VLP and VLS Aspirators When replacing the VLP or VLS detector aspirators follow the instructions below 1 Isolate and power down the detector 2 Open the front cover 3 Locate and unplug the cable loom that connects from the head processor card HPC to one of the modules located on the front panel Mark out this connector position if unsure about the cabling 4 Remove the air filter cartridge Refer to Figure 7 8 Figure 7 8 Removing the Air Filter Cartridge for VLP or VLS aspirator replacement 5 Remove the HPCs securing screw Warning Hold the HPC at the edges Static charges may damage it 6 Remove the brown insulating sheet and lift up the HPC 7 Locate the aspirator cable loom red white and blue wires and disconnect the connector from the HPC 20 www xtralis com Xtralis VESDA Xtralis VESDA Maintenance Guide A Filter switch connector socket Aspirator loom connector PLN 7 C Aspirator locking o de SAN LY fingers a N e 4 Move both locking ab ea fingers outwards E Aspirator lift upwards Figure 7 9 Removing the HPC and Disconnecting the aspirator cable loom Locate the two plastic fingers securing the aspirator to the chassis D in Figure 9 above Push fingers outwards E and lift the aspirator out Remove the exhaust pipe elbow and filter
33. icons are used in this document Caution This icon is used to indicate that there is a danger to equipment The danger could be loss of data physical damage or permanent corruption of configuration details Warning This icon is used to indicate that there is a danger of inhaling dangerous substances This may lead to death or permanent injury Warning This icon is used to indicate that there is a danger of electric shock This may lead to death or permanent injury Contact Us The Americas 1 781 740 2223 8 52 2297 2438 Australia and New Zealand 61 3 9936 7000 Continental Europe 41 55 285 99 99 UK and the Middle East 44 1442 242 330 ii www xtralis com Xtralis VESDA Xtralis VESDA Maintenance 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 In these cases the local codes and standards must take precedence The information below was correct at time of printing but may now be out of date check with your local codes standards and listings for the current restrictions FCC Compliance Statement This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to part 15 of the FCC
34. ion card and leave it suspended by these wires Remove the air hose from the aspirator pipe by pulling Undo the three Phillips head screws securing the aspirator these screws are captive Turn the aspirator anti clockwise using the exhaust port as the pivot point Push the aspirator upward to remove it Figure 7 11 Replacing the Aspirator in a VLC detector Check that the new aspirator has a gasket on the inlet flange and three attached screws Wipe the manifold outlet flange surface Secure the aspirator with the three screws Reconnect the previously removed air hose to the pipe on the aspirator Ensure a tight fit over the pipe Reinsert the termination card into the interface card Secure the termination card with the four screws Connect the aspirator cable connector to the socket on the aspirator the connector is keyed and can only be inserted one way Check that all wires are secured to their connectors or terminals Power up the detector and check that the aspirator is running Resolve all Fault conditions Close the detector Reset Isolate to normal conditions and check that the airflow has returned to the level it was at before Disassembly www xtralis com Xtralis VESDA Xtralis VESDA Maintenance Guide 7 7 Replacing the VLF Aspirator Note Prior to replacing the aspirator advise the monitoring authority that power is to be removed and the system disabled Caution Electrostatic discharge precautions
35. llation on the filter label with the recommendations in Appendix B Recommended frequencies for general maintenance and filter cartridge replacement on page 29 If in doubt replace the filter with a new one and record the date on its label Note Serious smoke events such as those indicated by Fire level alarms can also affect the life expectancy of filter cartridges Filter cartridges should be replaced after all actual fire events 8 www xtralis com Xtralis VESDA Xtralis VESDA Maintenance Guide 3 Power Supply Maintenance The Xtralis VESDA system power supply should be checked at least every six months or as required by local codes and standards Xtralis 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 Output voltage from detector to other devices Backup battery voltage 24 VDC Charging backup battery voltage typically 27 6 VDC www xtralis com 9 Xtralis VESDA Maintenance Guide Xtralis VESDA 4 Sampling Pipe Network Maintenance 4 1 Important Pre maintenance Preparations Every six months you should perform a visual check for any damaged sampling pipes or pipe junctions and do repairs as necessary If damaged or blocked sampling pipes go unrepaired detector flow faults can occur Prior to isolating an Xtralis VESDA system for maintenance the following important steps must be taken
36. lter cartridge on page The color codes for the dates of filter manufacture are given in Table 2 1 above Download and save the event log for comparison of smoke readings during normal operation Record the current airflow and raw values for before and after comparison Disconnect power to the detector Remove dust from around the pipe inlets Disconnect all pipes from the detector inlet s and exhausts then cover them to ensure that no unwanted material can enter the detector CONDON 6 www xtralis com Xtralis VESDA Xtralis VESDA Maintenance Guide 10 19 20 21 22 23 24 Optional proceed with this step if there is a low flow fault a noisy aspirator excessive or noticeable dust around the exhaust Remove the detector aspirator refer to Replacing VLP and VLS aspirators on page 20 or Replacing the VLC aspirator on page 22 and blow it out with compressed air Make sure that it is cleaned well away from the detector The aspirator can collect a significant amount of material in dusty environments cleaning with compressed air 400 KPa may produce a large quantity of dust Remove the filter and clean any visible dust around it Reconnect all pipes Re assemble the detector aspirator and filter Turn the power supply back on Allow the detector to operate for 15 minutes still in isolate disable mode View any faults present and take the appropriate action to fix them After allowing the detector to operate in
37. more regular maintenance than that recommended by Xtralis Maintenance frequency must be increased in industrial applications such as coal fired power stations factories distribution facilities and warehousing with high vehicular traffic loads since these applications commonly have high levels of background pollution Note Xtralis have adopted the fire industry term Disable for the Xtralis VESDA VLF and all future products The Xtralis VESDA VLP Xtralis VESDA VLS and Xtralis VESDA VLC continue to use the term Isolate Both terms are used throughout this document and have the same meaning Note Xtralis have adopted the fire industry term Address instead of the formerly used term Zone for the VLF and all future products The VLP VLS and VLC continue to use the term Zone Both terms are used throughout this document and have the same meaning www xtralis com 3 Xtralis VESDA Maintenance Guide Xtralis VESDA 1 4 Important pre maintenance preparations All maintenance procedures require the Xtralis VESDA system to be isolated during maintenance and testing Failure to isolate the system may lead to unwanted alarms and initiation of fire response systems When an Xtralis VESDA system has to be isolated alarms will be displayed but no relays will be tripped Prior to isolating an Xtralis VESDA system for maintenance you must do the following 1 Inform the appropriate supervising authority about the risk associated with isola
38. ode guidelines may state that system and detector tests be conducted on a regular basis Xtralis recommends that such tests be conducted at least annually However there are some environments in which it is necessary to conduct maintenance and testing more frequently refer to Appendix B Recommended frequencies for general maintenance and filter cartridge replacement on page 29 Notes e Asample maintenance and testing log is provided in Appendix C Example Of A Typical Maintenance Log on page 31 e Xtralis strongly recommends that all persons who install commission service and maintain Xtralis VESDA systems attend the Xtralis VESDA accreditation training Please contact your local Xtralis office for more information 6 1 Detector Tests Check the following items to ensure that performance is still satisfactory 1 Recorded faults If any faults are present record and rectify them before beginning any maintenance 2 Power supply Ensure that the input voltage is within the operating requirements 3 Backup battery if installed Check that the batteries are fully charged and the charging voltage is functioning correctly 4 Airflow Check the airflow for each sampling pipe in use Compare to previous site visit data to ensure that there is no degradation in performance due to pipe blockages leaks breaks or contamination 5 Smoke test Inject an appropriate level of smoke into the required sampling holes 6 Record Transport
39. oper health and safety precautions must be taken during the installation commissioning and maintenance of the product The system should not be connected to a power source until all the components have been installed Proper safety precautions must be taken during tests and maintenance of the products when these are still connected to the power source Failure to do so or tampering with the electronics inside the products can result in an electric shock causing injury or death and may cause equipment damage Xtralis is not responsible and cannot be held accountable for any liability that may arise due to improper use of the equipment and or failure to take proper precautions Only persons trained through an Xtralis accredited training course can install test and maintain the system Liability You agree to install configure and use the products strictly in accordance with the User Manual and product documents available from Xtralis Xtralis is not liable to you or any other person for incidental indirect or consequential loss expense or damages of any kind including without limitation loss of business loss of profits or loss of data arising out of your use of the products Without limiting this general disclaimer the following specific warnings and disclaimers also apply Fitness for Purpose You agree that you have been provided with a reasonable opportunity to appraise the products and have made your own independent assessment of the fitness or
40. pirator in a VLF detector www xtralis com 23 Xtralis VESDA Maintenance Guide Xtralis VESDA 7 8 Replacing VLP and 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 Follow the instructions below to replace the VLP or VLS termination cards N a oe Mark out the wire positions on each terminal socket before removing them Remove all terminal plugs C from sockets leaving the wires attached to the plugs refer to Figure 13 below Remove the 10 wire and 13 wire cable looms from their socket B in Figure 13 below Remove the five Phillips head screws A in Figure 13 below Remove the termination card Attach the Termination Card with five Phillips head screws A Reattach the 10 wire and 13 wire cable looms to the sockets B The connectors can only be inserted into the socket one way Turn the connector around if the connector does not fit into its socket Reconnect the terminal plugs to their sockets ensuring the plugs are connected to their correct socket C Figure 7 13 Replacing VLP VLS head termination cards 7 9 Replacing the VLC Termination Card Follow the instructions below to replace the VLC detector termination card 1 on CAO CE 24 Remove the front cover of the detector refer to Figure 2 Replacing the air filter cartridge in VLC
41. r Reset the filter counter using either the LCD Programmer or a PC running Xtralis VSC or Xtralis VSM4 www xtralis com 15 NDNA Xtralis VESDA Maintenance Guide Xtralis VESDA 7 2 Replacing the VLC Filter Cartridge The service interval of an air filter depends upon the environment You can use the LCD Programmer or Xtralis VESDA PC Software guides to change the service interval for filters The system will generate a minor fault when the filter has reached 80 and an urgent fault when it reaches 120 of its capacity We recommend that the installation date and replacement date are written on the air filter cartridge label as a physical reminder of when the next service is expected Note The detector must have the power turned on when the air filter cartridge is being replaced The procedure and diagrams outlined below provide the steps to be followed when replacing the air filter cartridge in the VLC detector 1 Open the front cover 2 Locate the air filter cartridge A inside the detector compartment as indicated in Figure 2 below 3 Undo the recessed phillips head filter screw B in Figure 2 below 4 Lift out the air filter cartridge Figure 7 2 Replacing the air filter cartridge in VLC detectors 5 Insert a new air filter cartridge A in Figure 2 above 6 Tighten the filter screw B in Figure 2 above 7 Reset the filter counter by connecting a LCD programmer or a PC with VSC software to the p
42. rogramming socket 8 Using a PC only applicable to RO version or a PC with a PC Link HLI Applicable to VN version only reset the filter by entering your user level and PIN number to Log ON to the detector then Initiate the Reset Filter Settings command located under the device menu 9 Close up the detector 16 www xtralis com Xtralis VESDA Xtralis VESDA Maintenance Guide 7 3 Replacing the VLF Fitler Cartridge The VLF detector uses a disposable dual stage 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 To maintain the operational integrity of the smoke detector it is recommended that the filter be replaced every 2 years or when a filter fault occurs More frequent filter replacement is necessary in environments where there are high levels of contamination A fault is raised on the detector when the filter needs to be replaced During the replacement process the detector must be told that a new filter has been installed Notes e Prior to any work or maintenance being carried out on the VLF take the necessary steps to advise the monitoring authority that power may be removed and that the system will be disabled e Ensure that the area surrounding the filter is clear of dirt and debris prior to replacement e The filter is for single use only it cannot be cleaned and re used
43. s normal operating mode Sites with dirty environments which require very regular capillary tube cleaning should consider installing automated equipment to assist with regular cleaning schedules 12 www xtralis com Xtralis VESDA Xtralis VESDA Maintenance Guide 5 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 Consult your local code guidelines to establish the following e The minimum testing required per sampling pipe e The appropriate alarm threshold per sampling pipe Here are some examples of possible tests e You could create a fault to ensure that it is registered by the detector and monitoring system for example remove a pipe to create a high airflow fault e You could inject smoke into the last sampling hole to see whether it is detected e Likewise you could inject smoke into critical sampling holes to see whether it is detected e More specifically you could inject smoke into sampling holes only in sections of the pipe network where maintenance has been performed to check the effectiveness of that maintenance With all smoke injections you need to record transport time ensure that a significant amount of smoke is registered and that alarm s are generated The alarm thre
44. s should reflect the typical operating area provide enough data to determine the environment type For clean environments the significant smoke change will need to be set to 0 005 obs m 0 0015 obs ft for the test period Remember to return this setting to its original value once the test is completed Note The following steps do not represent a complete list of instructions You must also refer to the sections of this manual specific to the various types of Xtralis VESDA detector To determine an appropriate maintenance schedule follow the instructions listed below 1 Ensure that detectors are isolated from the monitoring panel and suppression systems Notify the relevant authorities about the work to be performed and the risks associated with isolating a VESDA address 3 Ifa filter fault is displayed the current filter is older than the recommended filter replacement frequency Replace the filter according to the detector s guidelines making sure that you write the date of replacement on the label and take measures to order stock VSP 005 for the next replacement date For detector specific filter replacement instructions refer to Replacing VLP and VLS filter cartridges on page 15 Replacing the VLC filter cartridge on page 16 and Replacing the VLF filter cartridge on page The color codes for the dates of filter manufacture are given in Table 2 1 www xtralis com 5 Xtralis VESDA Maintenance Guide Xtralis VESDA _ Color Dat
45. sholds and amount of smoke injected may have an impact on the results You should compare times with the ASPIRE2 design files commissioning tests and service history Note Transport time is the time taken in seconds for the smoke to travel to the detector Typically allowing for small variations the result should be approximately the same as the ASPIRE2 calculations In the event that there is a wide variation between the ASPIRE2 results and the actual smoke test results you must investigate the following 1 Check that the sampling pipe network matches your ASPIRE2 design 2 Check that the aspirator speed matches your ASPIRE2 design VLP and VLS only 3 Check for any preset alarm delays 4 Check the sampling pipe network for leaks and blockages Xtralis does not recommend the use of canned smoke to perform post maintenance tests However if you do use canned smoke you should ensure that you do the following Read and carefully follow all instructions on the canned smoke product Take all necessary health and safety precautions Avoid inhaling the fumes Avoid spraying the canned smoke directly into the detector or the pipe inlets Avoid prolonged bursts use in short bursts of less than 2 seconds Prolonged use of canned smoke can damage plastic components and the detector itself thereby invalidating the detector s warranty www xtralis com 13 Xtralis VESDA Maintenance Guide Xtralis VESDA 6 Annual Testing Local c
46. suitability of the products for your purpose 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 Total Liability To the fullest extent permitted by law that any limitation or exclusion cannot apply the total liability of Xtralis in relation to the products is limited to i in the case of services the cost of having the services supplied again or ii in the case of goods the lowest cost of replacing the goods acquiring equivalent goods or having the goods repaired Indemnification You agree to fully indemnify and hold Xtralis harmless for any claim cost demand or damage including legal costs on a full indemnity basis incurred or which may be incurred arising from your use of the products Miscellaneous If any provision outlined above is found to be invalid or unenforceable by a court of law such invalidity or unenforceability will not affect the remainder which will continue in full force and effect All rights not expressly granted are reserved www xtralis com i Xtralis VESDA Maintenance Guide Xtralis VESDA Document Conventions The following typographic conventions are used in this document 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 Used for the result of an action The following
47. ting a Xtralis VESDA Address 2 Ensure that any ancillary devices dependent on the detector are appropriately isolated When a detector is isolated a fault is signalled at the monitoring system This is acknowledged either by wiring the isolate relay in series with the fault relay VLP and VLS or by configuring the fault relay fault number 3 to trigger an isolate 1 5 Maintenance Schedule Summary Table 1 contains a summary of the suggested maintenance schedule Table 1 1 VESDA maintenance schedule summary Maintenance Task Every Visit Monthly Six Monthly Annual Every Two Years Check Detector amp See Recommended Xtralis VESDA Maintenance Period amp Filter Cartridge Replacement Filter Frequency Appendix B Check Power Supply Inspect Pipe Network Check Air flow per pipe Perform System Integrity Smoke Test Clean Sampling Points Flush Pipe Network o A d e S Notes e The above table only applies to clean environments e If local codes and standards for the site require more frequent maintenance their guidelines must override those suggested in this Maintenance Guide e Maintenance schedules may also vary according to operating conditions e Sampling pipe flushing and the cleaning of sampling holes should be conducted as frequently as required by the detector type and environment 4 www xtralis com Xtralis VESDA Xtralis VESDA Maintenance Guide 2 Detector Maintenance 2 1 Maintenance Consi
48. tralis VESDA systems attend the Xtralis VESDA accreditation training Please contact your local Xtralis office for more information 1 2 Brief Outline The information presented in this Maintenance Guide is arranged into the following sections e Section 2 describes how to determine an appropriate maintenance schedule and maintenance procedures for Xtralis VESDA detectors Section 3 describes how to maintain the power supply Section 4 describes how to maintain the sampling pipe network Section 5 provides information on post maintenance testing Section 6 provides information on annual testing Section 7 describes the procedures for replacing parts on the range of Xtralis VESDA detectors Appendix A provides a list of part numbers Appendix B provides application specific information on determining an appropriate maintenance schedule e Appendix C provides a sample maintenance log which should be completed as part of each maintenance visit 1 3 Maintenance Overview Who and When To maintain the Xtralis VESDA system at its peak performance level the suggested maintenance schedule should be followed Maintenance can be conducted by the original installer an Xtralis VESDA distributor or a service contractor The optimum operation of an Xtralis VESDA system requires that the equipment is supported by a well designed and maintained sampling pipe network The site conditions and the local codes amp standards may require
49. ts out of the sampling holes Take precautions to ensure that dust is not blown into undesired areas 8 Visually check that the in pipe sampling holes have a clear air path 9 Compare the before and after flow rates Ideally the flow should be close to 100 for each used pipe If this is not the case the capillaries and detector may need closer inspection 10 Ifthe sampling pipe network appears to be OK continue with the remainder of this section to determine the cause of reduced airflow 11 Once the system has been serviced cleaned tested and is operating fault free return it to its normal operating mode OV GN D Note Sites with dirty environments which require very regular sampling pipe and sampling hole cleaning should consider installing automated equipment to assist with regular cleaning schedules 4 4 Cleaning Capillary Tubes We suggest that capillary tubes be cleaned at least once every two years This is a recommended interval for environment classes 1 amp 2 but your system environment will have an effect on how often capillary tubes require cleaning refer to Appendix B Recommended frequencies for general maintenance and filter cartridge replacement on page 29 The scheduled period should be reduced to suit harsh site environments Cleaning may be required to remove any dust build up and to ensure that the capillary tubes are not blocked To clean capillary tubes follow the instructions below Ensure that det
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