10255_06_VESDA_Pipe_..
Contents
1. Figure 3 13 Sampling Point decal e CAUTION e CAUTION e CAUTION VESDA SMOKE DETECTOR SAMPLING PIPE DO NOT REMOVE PAINT OR OBSTRUCT Figure 3 14 Pipe label Op xtralis Install Date Test Point siad a M Detector Zn Transport Time sec www xtralis com F F part no 29624 document no 18715 Pipe i Suction Pressure Pa Figure 3 15 Test Point label www xtralis com 11 VESDA Pipe Network Installation Guide VESDA by Xtralis This page is intentionally left blank 12 www xtralis com VESDA by Xtralis VESDA Pipe Network Installation Guide 4 Working with Pipes The following guidelines will assist with the successful installation of a pipe network 4 1 Cutting Pipes If the pipes need to be cut use the right tools to cut the pipe Use pipe cutting shears or wheel type plastic tube cutter It is important that the cutting edge of the shears and cutter are sharp Ensure that the cut is square Square cuts provide maximum bonding area Remove all loose plastic Beveling the end will make it easier to fit in to the socket and prevent solvent cement from being wiped from the joining surface during final assembly Figure 4 1 Pipe Cutting Shears Note Remember to remove all dust and shavings created when cutting the pipe as they can block sampling holes and impacts on the efficient performance of a pipe network 4 2 Joining and Bonding When joining the pipes ensure that the pipes are inserted2. Installation should be performed after the site survey and ASPIRE2 modelling have finished Once the installation is finished you can move on to commissioning the VESDA system This step requires you to install the pipework as specified in design documents and record any changes to the plan that you are required to make These details will be included in the hand over documentation which will be given to the customer when the system is commissioned 1 1 Pipe Network The VESDA early warning aspirating smoke detection system collects air samples through sampling holes on a network of pipes The airflow within a protected area carries the air samples to the sampling holes Conventional smoke detectors wait for the smoke to migrate through the detector VESDA actively draws air samples into the sampling system These samples are transported through the pipe network to the detector End Cap with hole B farsans _ C Airflow entering a sampling hole D Air sampling pipe DE Detector B Microbore tubes um a EI Pd Q Paw ES F PELLIT SS a oT SS 2468855 A ES Figure 1 2 VESDA VFT 15 air sampling system using Microbore tubes www xtralis com 3 VESDA Pipe Network Installation Guide VESDA by Xtralis This page is intentionally left blank 4 www xtralis com VESDA by Xtralis VESDA Pipe Network Installation Guide 2 Installation Steps These instructions are the basic sequence of steps you will
3. Section 5 2 1 or use a Duct design Section 5 2 3 22 www xtralis com VESDA by Xtralis VESDA Pipe Network Installation Guide 5 2 3 Duct Sampling and Condensation Duct sampling allows you to monitor the return and supply air within the protected enclosure The sampling pipe is connected to a sampling probe to sample the air from within the duct To avoid the potential effects of pressure differentials the air is exhausted back into the duct through an exhaust probe The exhaust probe holes must also face the same direction as the intake probe holes The detector must be installed in the inverted position when sampling air from ducts This is done because condensation may occur when the dew point temperature of the duct air is at or above the ambient temperature of the detector This usually occurs when the temperature of the humid duct air is higher than the ambient temperature of the detector In this situation longer pipe runs outside the duct should be used Initial regular inspections must be carried out to determine whether there is condensation forming inside the pipes especially during the winter season omoke tests should be conducted regularly in the first two months of installation Duct Installation Considerations e Inair return ducts the detector must be installed where the static pressure is not below 500Pa and the air duct velocity is not above 20 m sec 4 000 fpm Static pressure is the pressure generated by the fan to
4. The ceiling void is used to lay the sampling pipe Capillary tubes are routed to the required location and penetrate the ceiling generally using something to hide the tube The end of the tube is either restricted with a capillary cap or left fully open In situations where discreet sampling is required to maintain the aesthetics of the protected area the capillary tube can be concealed behind a ceiling rose wound down a chandelier support chain or can sit flush with the ceiling cornice The sampling holes can be concealed by using a flush sampling point or a sampling point inserted inside the end of the sampling pipe l 2 20 Follow the guidelines in Section 5 1 2 on page 18 Then follow the guidelines in Section 5 1 5 on page 20 Figure 5 7 Concealed sampling points www xtralis com VESDA by Xtralis VESDA Pipe Network Installation Guide 5 2 Return Air Grilles and Air Ducts 5 2 1 Return Air Grilles Return air grille sampling is used to monitor the grille air drawn to an exhaust ventilation system or to an air handling unit AHU The pipe network design will specify where return air sampling is required Figure 5 8 Return air grille sampling The guidelines that need to be considered in a return air grille sampling installation 1 Follow the guidelines specified in Section 5 1 on page 17 then use the guidelines below 2 Fix appropriate pipe mounting clips or pipe clamps with standoff posts over the return air gri
5. the application customer requirements and local codes and standards Installing pipe networks requires knowledge of the components used guidelines that should be followed and an understanding of the more commonly used air sampling options For information on the theory of pipe networks refer to the VESDA Pipe Network Design Guide This section of the manual contains the instructions for installing pipe networks into the common types of sites For information on installing pipe networks to specialized environments refer to the VESDA Application Design Guides 5 1 Ceilings and Floors 5 1 1 OnCeiling On Ceiling installation is the most common type of installation and is often installed in a standard room not having any special requirements The pipes are installed directly onto the ceiling of the area to be protected Figure 5 1 Typical on ceiling installation The normal procedure for installing an on ceiling pipe network is 1 Check the design documents to gather information on the size and configuration of the pipes The design documents could include pipe network design specifications or an ASPIRE2 Installation Data Pack IDP or a pre engineered design 2 Mark the spot where the detector is to be installed 3 Measure and mark the spots for pipe mounting clips as per the design documents 4 nstall the detector For further information refer to the detector documentation 5 Secure the pipe mounting clips to the ceiling ens
6. 15 pipe network eee eee eee 3 components T plastic ratchet 10 R dalai 8 reducing connectors 8 S saddle strap 10 sampling In Gabitiet MER ERE 9 sampling holes ONINO OR E EE E TT TOU 15 sampling pipe sss 9 sampling points COMIC AN PT DT 9 Ph AAP PAA 9 miniature eee eee cece eee cece 9 sampling probe 25 installation 25 socket unions 7 10 solvent cement 10 T AA OR TREE IER 8 10 temperature 13 14 23 Y y pieces eeeeene enses 8 10 34 www xtralis com
7. be required to perform when installing a pipe network Information on installing into a range of environments is covered in depth in Chapter 5 Information on the theory of good pipe network design can be found in the VESDA Pipe Network Design Guide 2 1 Pipe Network Installation The normal procedure for installation is 1 Check the design documents to gather information on the size and configuration of the pipes The design documents could include pipe network design specifications an ASPIRE2 Installation Data Pack IDP or a pre engineered design Mark the spots where the detector is to be installed Measure and mark the spots for pipe mounting clips as per the design documents Install the detector For further information refer to the detector documentation Install the mounting clips as per the design documents Mount and join the pipes onto the clips as per the guidelines in Section 4 4 Do not glue the pipes at this stage 7 Drill sampling holes in the pipe ensuring that the spacing between sampling holes is as per the design documents and the holes are at the correct orientation 8 Check if the design documents require end caps with holes Install as required 9 Runthe pipe to the detector 10 Insert the pipes into the detector ensuring there is a minimum of 500 mm 20 in of straight pipe before the pipe enters the detector Do not glue the pipes to the detector manifold 11 Update the design documents with any changes
8. before installing it Failure to retest the design with ASPIRE2 may lead to the installation of a pipe network that does not meet customer and local fire authority codes and standards After updating the design documents you must give a copy to the person who will be commissioning the system The details of the person who will be commissioning can usually be found in the ASPIRE2 Installation Data Pack IDP www xtralis com 31 VESDA Pipe Network Installation Guide VESDA by Xtralis This page is intentionally left blank 32 www xtralis com VESDA VESDA by Xtralis Pipe Network Installation Guide Index installation EE ie 5 intake probe EE EE EE EE EE 29 A J adaptor e j piecesS M 8 10 tee adaptor 9 OMIE EE EG AO EE AE 13 aspirating smoke detection 3 joint B expansion joint Luuuuuuuuuuu 13 bend hh 9 s s LLL 8 10 15 standard pipe joint 13 bending L elbow 8 labels PIPES EA ESE Na aala ka adb kanaba dk sasa 15 D miniature sampling point 11 SPINGS DE S 15 pipe label 11 bonding enn 13 sampling point 0 0 11 C M capillaries Lsuuuuuuuuuuuue 8 15 IMICIODONE etate a alam AHEM babad eiue 15 capillary tubes 9 je dle AA Ic EE NN N 14 cementing SES ESEG eee eee 13 fixtures 10
9. condensation SES SESSE 23 COUDIITIOS AA P cutting pipes 13 DIDS 22h eet tet EE esas et utes 7 D 210 210110 222623122 EE Ai AG LANG LA IERI 8 benders EES a 15 drop pipe EES eee eee ee SG ee ie 9 15 P Pip 9 2 6 8 S 10 ol ee IE EE ORE ERE 23 bonding DPO 13 exhaust pipe 23 l cementing eee eee eee eee ee 13 exhaust probe 25 OU kata ee GE ME ee 10 inlet pipe se ERE 23 contraction 13 14 manometer eee cece eeeee 23 couplings eee ee eee eee ee eee T DODES NETT 25 AN 13 E diameter 7 8 elbow Ee 8 10 WOP PIPE A 8 9 15 End Gap d eR EE EE ee dei 10 CIDON aa DR EG EE NANA 10 exhaust probe 25 OI COD EER RES Eg ee ee ae 10 expansion joint 7 EXPANSION E 13 14 G expansion joint 7 13 gluing EE eee eee eee eee eee eee 13 GIE tsaga paaa naaa aaa TUN 13 ta Hpieces 00 8 10 eL AP 13 in cabinet 22 e ee 9 Network 3 www xtralis com 33 VESDA by Xtralis Pipe Network Installation Guide VESDA mic 7 reducing connectors 8 i RENE ERE 13 socket unions T standard pipe joint 13 H lag 8 y pieces LL 8 10 pipe adaptor 8 pipe benders
10. deliver a specific flow rate in the duct Static pressure is a function of the flow rate and impedance of the duct system Convert to volumetric flow rate e Always vent the exhaust pipe back into the duct even when the duct pressure is sometimes very small e g less then 20Pa This is because the duct system operation may change in the future e Inair return negative pressure ducts the detector must be installed away from any fans and closer to air vents this reduces large negative pressures e Forair return negative pressure ducts the detector must be installed before humidifiers heating coils and filters In air return negative pressure ducts the detector must be installed before fresh air intakes Do not sample from multiple ducts i e use a different detector for each duct Do not sample duct and ambient environments together For a detector mounted on the duct ensure no tangible vibrations exist when the duct system is in full operation If vibrations exist insert visco elastic foam between the detector s mounting bracket and the external surface of the duct Probe Installation The differential pressure across the inlet and exhaust pipe needs to be kept within x10Pa in the presence of airflow regardless of duct air velocity Differential pressure is created by the orientation of the holes on both pipes in relation to the duct flow This differential pressure across the inlet and exhaust pipes will either aid or imped
11. is done so that the air hitting the exhaust probe has not been disturbed by hitting the sampling probe first Drill the same number and size of sampling holes used in the sampling probe Make a mark on the end of the probe in line with the holes Attach an end cap without a hole and insert the probe a third the way into the duct Use the mark on the end of the probe to ensure that the holes on the probe face 20 to 45 above or below the direction of the airflow These holes need to face the same direction as those used in the sampling probe Ensure that the hole where the exhaust probe enters the duct is properly sealed and made air tight Join the exhaust probe to the exhaust pipe network running from the detector Air intake probe Air exhaust probe Central air flow Figure 5 14 The location of probes in duct www xtralis com 25 VESDA Pipe Network Installation Guide VESDA by Xtralis 5 3 Cabinet and Rack Detection p Retainer clips EJ Sampling hole E c LIE TONE E RG doppie Cr ungerne Figure 5 15 In cabinet sampling using capillaries amp drop pipes C 5 3 1 In Cabinet Installation In Cabinet sampling uses capillary tubes microbore or drop pipes to sample the air from within a cabinet such as a switching console or an equipment rack A capillary tube or microbore can be inserted into the cabinet either from the top of the cabinet or from the under floor void Warning Ens
12. that pipe network installers attend an approved VESDA training course 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 icons are used in this document Caution This icon is used to indicate that there is a danger to N 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 electric shock This may lead to death or permanent injury Warning This icon is used to indicate that there is a danger of inhaling IN dangerous substances This may lead to death or permanent injury Contact Us UK and Europe H44 1442 242 330 D A CH 49 4347 903 0 The Americas 1 781 740 2223 Middle East 962 6 588 5622 Asia 86 21 5240 0077 Australia and New Zealand 61 3 9936 7000 ii www xtralis com VESDA by Xtralis VESDA Pipe Network Installation 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 al
13. the warranty 6 www xtralis com VESDA by Xtralis VESDA Pipe Network Installation Guide 3 Components of a Pipe Network This section describes various components used in constructing a pipe network and guide lines that should be observed in using these components It is unlikely that all the components mentioned here will be used in every installation and some projects may require components other than those mentioned here 3 1 Pipe Line The sampling pipe used for the pipe network is normally alow cost 19 mm to 25 mm 0 75 to 1 in ID PVC pipe We recommend the use of 21 mm 0 83 inch ID smooth bore pipe The internal diameter for the pipes may vary depending upon design requirements The sampling pipe used must also comply with local codes and standards Figure 3 1 A section of VESDA pipe 3 2 Microbore Tube Sampling for the VESDA VFT 15 detector is achieved through flexible microbore tubes The VESDA VFT 15 detector requires that each microbore tube has a fixed length of 50m 164 ft 6mm 0 24 OD 4mm 0 16 ID and comprises one sampling point at the end It is recommended that excess microbore tube be coiled near the sampling point end and for good aesthetic practice be run through the roof or floor spaces Note For reliable smoke detection and flow monitoring performance the VESDA VFT 15 detector must be connected to a balanced network containing equal length Microbore Tubes of 50 m 164 ft Where the distance betw
14. used to counter the higher rates of expansion and contraction of the sampling pipe Drill sampling holes on the underside or side of the pipe ensuring that the spacing between sampling holes is as per the design documents and the holes are at the correct angle Check to see if the design documents requires end caps with a hole Install as required Run the pipe to the detector Insert the pipes into the detector pipe inlet manifold Refer to the relevant detector manual for further information To avoid potential effects of pressure differentials it is recommended that sampled air is exhausted from the detector back to the ceiling void Mark the design documents with any changes that may have been made during installation After all the tests have been completed bond the pipes together using the appropriate cement solvent Do not glue the pipes running into the detector manifold as this can make it impossible to service the detector and will void the warranty Use appropriate labels and tag the sampling pipe sampling holes and test points where required Refer to Section 3 13 on page 11 Mark the design documents with any further changes that may have been made during the tests www xtralis com VESDA by Xtralis VESDA Pipe Network Installation Guide 5 1 3 Floor Void Installation Installations in the under floor void require considerations similar to the In Ceiling Void Installation Figure 5 3 Typical under floor installation
15. 10 Flush End of Line Filter 3 11 Mounting Fixtures The sampling pipe is mounted using the appropriate pipe mounting options Some of the mountings commonly used are illustrated below Figure 3 11 Pipe mounting fixtures pipe clips self locking ties saddle strap 3 12 Solvent Cement Solvent cement is used to bond pipes together It may also be used to bond pipe accessories such as couplings socket unions bends elbows tees Y pieces J pieces and end caps to the pipe 10 www xtralis com VESDA by Xtralis VESDA Pipe Network Installation Guide 3 13 Labels Sampling point labels There are two labels to identify sampling holes e Miniature sampling point label These are round labels with a hole in the center to fit around the miniature sampling points Refer to Figure 3 12 e Sampling point decal This decal is wrapped around a pipe on the sampling hole The decal has a hole in the center The hole in the decal must be aligned to the sampling hole drilled into the pipe Refer to Figure 3 13 e Pipe label This label identifies the pipe as being a smoke detector pipe and warns against tampering with it Refer to Figure 3 14 e Test Point label This label identifies a sampling point which is used for test purposes It is normally the last sampling point on the main pipe or branch pipe Refer to Figure 3 15 Figure 3 12 Miniature Sampling Point label E E O at LLI dy gt o VESDA FIRE DETECTION
16. The Guidelines to be followed for Floor Void Installations include 1 Referto the guidelines for In ceiling installations for general guidelines 2 Supporting posts can be used to secure the pipe 3 As the initial smoke layer normally takes up the top 10 of the void height pipes should be placed as close to the floor as possible 4 Securethe pipe using appropriate conduit clamps or self locking ties ensuring that the distance between the floor and the pipe is according to the design specification For further information refer to Section 3 11 on page 10 5 1 4 Inter beam Inter beam sampling is used in areas having large beams as defined by local fire code and standards or as per site requirements Design documents will specify the requirement for inter beam sampling The three methods for inter beam sampling are Sampling Pipe Traversing inside of the Beam Pocket Bend the sampling pipe where the depth of the beam allows the pipe to be bent without it cracking or crinkling refer to Section 4 5 on page 15 A Sampling Pipe B Beam Pockets Sampling holes Figure 5 4 Inter beam sampling using pipe bends Walking Sticks Walking sticks are attached to the sampling pipe The walking stick is a length of riser pipe Attach a bend or an elbow at the top end of the riser pipe Fix an appropriate length of pipe to the bend or elbow and drill a sampling hole as specified in the design documents into the pipe Close the end of the p
17. VESDA Pipe Network Installation Guide September 2012 Document 10255 06 Part Number 30008 VESDA y xtralis VESDA by Xtralis VESDA Pipe Network Installation 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 documentis 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 rightto 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 avail
18. abinet sampling www xtralis com 27 VESDA Pipe Network Installation Guide VESDA by Xtralis 5 3 3 n Rack Installation In rack installations are typically found in warehouses and other areas using high bay racking The sampling pipe is installed in between two racks along their length or within the racking Pipes may need to be fitted at different heights to enable effective detection of any incipient smoke at different levels Instructions for installing the sampling pipe 1 28 Whenever possible lay the pipe between two racks so that it can not be accidentally damaged as items are moved into and out of the racks Typically this would be along the inside of the horizontal and vertical support beams and posts Secure the sampling pipe to the support beams and post using appropriate support for example mounting clamps or self locking ties Drill sampling holes as specified in the pipe network design or the IDP following the guidelines in Section 4 6 on page 15 Connect but do not glue or bond the sampling pipes to the detector There must not be any bends in last 500mm 20in running into the detector Update the grid overlay and IDP with any changes made to the original plans After all the tests have been completed bond the pipes together using the appropriate cement solvent Do not glue the pipes to the detector pipe inlet Use appropriate labels and tag the sampling pipe sampling holes and test points where required Fig
19. able from Xtralis All proper 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 ofthe 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 asse
20. all the way to the lip inside the coupling or adaptor Failing to do so will create a turbulence due to expansion of space between the pipe end and the coupling lip CC Figure 4 2 Turbulence created due to a gap in pipe coupling All joints except the joint to the detector should be bonded using appropriate solvent cement It is advisable to bond the joints only after the final tests have been completed and required adjustments have been made 4 3 Cementing Pipes Together Bonding cementing or gluing pipes is all done using the same process Apply your glue cement bonding agent to the outside of the pipe and insert into the other pipe If you were to put it on the inside of a pipe it will build up when the other pipe is inserted This build up will affect the airflow characteristics inside the pipe and may cause unpredictable behavior You should never bond glue or cement the pipes that connect to the detector 6 pe A Do not apply solvent 4 cement on the inside B Apply solvent cement on the outside Figure 4 3 Applying solvent cement www xtralis com 13 VESDA Pipe Network Installation Guide VESDA by Xtralis Where there is likelihood of high level of temperature fluctuations use expansion joints or U bends to allow for Expansion joint B Standard pipe joint the expansion and contraction of pipes Figure 4 4 Expansion joints The diagram above shows expansion A and standard B pipe jo
21. ater level on both sides of the tube is the same Mark the position of the pipes orientation on the pipe and the side of the duct Connect the detector after securing the pipe network 24 WWW xtralis com VESDA by Xtralis VESDA Pipe Network Installation Guide Sampling probe installation 1 Drill holes through the sides of the duct so that the intake probe can be inserted across the width of the duct The holes should be in the middle of the duct Drill the required number and size of sampling holes in the probe Make a mark on the end of the probe in line with the holes Insert the probe through the duct and attach an end cap without a hole in it Use the mark on the end of the probe to ensure that the holes on the probe face 20 to 45 above or below the direction of the airflow Ensure that the holes where the intake probe enters and exits the duct are properly sealed and made air tight Join the sampling probe to the sampling pipe network running to the detector C Airorhaust prove End caps without a hole Figure 5 13 Return air duct sampling Exhaust probe installation Always install the sampling probe then install the exhaust probe 1 4 9 On the same side of the duct that the sampling probe was inserted you will need to drill another hole for the exhaust probe The hole should be Downwind of the sampling probe by at least 300 mm 1 ft A quarter the height of the duct up from the bottom This
22. e sampling points Conical sampling points Local codes and standards normally specify the minimum distance from the ceiling for air sampling The conical sampling points meet these requirements and is more commonly selected as a miniature sampling point Figure 3 7 Conical Sampling Point Flush Sampling Points Flush sampling points are normally used when there is a need to conceal the pipe network Flush sampling points may not comply with your local codes and standards These are mostly used for performance based systems Figure 3 8 Flush Sampling Point 3 10 Microbore Sampling Points Microbore sampling points are attached to the end of the flexible microbore tubing and can be used for capillary tubes that are of the same size www xtralis com 9 VESDA Pipe Network Installation Guide VESDA by Xtralis Note Ensure the same type of sampling points is used for all microbore tubing connected to a single detector Sintered End of Line Filter It is recommended that a sintered end of line filter is used at the end of every capillary tube This will ensure that airflow is not impeded by blockages such as insects nesting within the capillary tube Figure 3 9 Sintered End of Line Filter Flush End of Line Filter This type of sampling point provides both a sturdy safe and aesthetically pleasing end point It can be screwed to walls or ceilings while the small maze grid over the sampling hole acts as a filter Figure 3
23. e the flow through the detector A very low differential pressure ensures the normal operation of the detector To achieve this perform the following steps 1 Ensure the duct system is operating and airflow is present in the duct 2 Drill holes in the inlet and exhaust pipes as required draw a line along the holes to the end of the pipe 3 Insert the pipes in the duct and rotate the pipe until the line indicates that the holes are facing into the airflow 4 Using the Manometer testing Figure 5 11 or flexible U testing Figure 5 12 methods to minimize the pressure differential 5 When you are happy with the pipe orientation mark the position of the pipes orientation on the duct and pipes 6 Secure the pipe installation and run pipe to the detector Face the holes of both pipes to the airflow and slightly rotate the pipes so the pressure reading is within 10Pa Mark the position of the pipes orientation on the pipe and the outside of the duct Connect the detector after securing the pipe network www xtralis com 23 VESDA Pipe Network Installation Guide VESDA by Xtralis B SS HA OT B Rutera C D 7 D Exhaust pipe E Manometerpressue Figure 5 11 Manometer testing Connect the pipe ends to a U shape clear flexible tube that contains water Bc E c Same Eu eee eee Figure 5 12 Flexible U tube testing Face the holes on both pipes to the airflow and slightly rotate the pipes so the w
24. een the detector and sampling hole is less than 50m 164ft refer to the VESDA VFT 15 Product Guide for information on using a combination of reduced diameter Microbore Tubes and reducing connectors to achieve the required system performance 3 3 Couplings Socket Unions and Expansion Joints Couplings socket unions and expansion joints are used to connect pipes together Figure 3 2 Coupling joint A and socket unions B For information on expansion joints refer to Section 4 3 on page 13 Couplings are the usual way to connect two pieces of pipe Socket unions are typically used where the pipes may have to be periodically dismantled for maintenance Socket unions are also used where it is important to have the correct orientation of sampling holes for example sampling pipes over air grilles Expansion joints are used in environments where pipes are likely to expand and contract due to variation in temperature for example sampling pipes in refrigerated warehouses www xtralis com T VESDA Pipe Network Installation Guide VESDA by Xtralis 3 4 Bends and Elbows Bends and elbows are used to change the direction of the pipe Bends having a wider radius are preferred though elbows are also acceptable Figure 3 3 A wide radius bend A 45 bend B and 90 elbow C 3 5 Tees Y Pieces and J Pieces Tees Y Pieces and J Pieces are used for branching a sampling pipe or for attaching capillaries and drop pipes to the air sam
25. esign documents with any changes that may have been made to the original plan Mark the spot where the detector is to be installed Install the detector For further information refer to the detector Product Guide or Installation Sheet Insert the microbore tubes into the detector Do not glue the microbore tubes to the detector manifold Run the microbore tubes to the required sampling locations ensuring there are no kinks It is recommended that excess tubing be coiled close to the sampling point end Check if the design documents require sampling point components Refer to Section 3 9 on page 9 Install as required 6 Unused inputs on the detector should be looped to one another using short lengths of microbore tubes For example if the VESDA VFT 15 detector has unused inputs 9 to 15 one way of connecting the unused inputs would be to use short pieces of microbore tubes to connect inputs 9 to 12 10 to 13 11 to 14 and have input 15 capped off DU o Io www xtralis com 5 VESDA Pipe Network Installation Guide VESDA by Xtralis 7 Update the design documents with any further changes that may have been made during the tests and give a copy of the updated design documents to the person who will be commissioning the system cause damage to the delicate electronic flow sensor components mounted just inside each port Caution Do not insert ANY object into the inlet ports other than the correct size of tubes Doing so may N opening and void
26. f sampling holes may be different for each hole in a pipe network so check the size required for each hole in the IDP e Holes MUST be drilled at 90 to the pipe If the drill is at an angle the sampling hole will not be round and may effect air flows e The hole must only be into the pipe and not through the other side of the pipe e The sampling hole should be drilled at slow drill speed with a sharp drill bit to avoid dust debris or burrs enter the sampling pipe 4 7 Labelling Adhesive labels to identify the sampling pipe and the sampling holes and Sampling Points are available from Xtralis These should be used to identify e The Pipes as Smoke Detector sampling pipes e Sampling Holes e Sampling Points e Test Points For further information on the different label types refer to Section 3 13 on page 11 4 8 Using Capillaries Microbore and Drop Pipes 4 9 Using Capillaries and Drop Pipes Typically a capillary is a flexible tubing having a maximum length of 8 m 26 25 ft To maintain an acceptable level of air flow we recommend the use of 21 mm 0 83 inch ID pipe for drop pipes The minimum capillary ID is 4 mm 0 2 inch A variation of the capillary tube is the 12 5 mm half inch ID rigid drop pipe Drop pipes of up to 4 m 13 ft are acceptable but should be verified against ASPIRE2 calculations Where multiple capillary tubes are used the length for each capillary should be approximately the same A sampling hole sugges
27. ints The diagrams at the top show how the pipe network will look at room temperature the diagrams at the bottom show what happens after the refrigeration system has been turned on and the pipe shrinks Note that once the standard pipe has shrunk the pipes are no longer air tight and the detector will not be able to detect smoke U bend arrangement It is important to allow for the expansion or contraction of the sampling pipes where there is likelihood of high level of temperature fluctuations It is recommended to use U bends in longer pipe runs to prevent buckling Refer to Figure 4 5 Figure 4 5 U bend 4 4 Mounting The pipe network should be mounted as per the design and ASPIRE2 specifications The fittings used for mounting will depend upon the design and site requirements e Tominimize flexing the pipes should be secured every 1 5 m 5 ft e Pipes should be suspended between 25 100 mm 1 4 inches below the ceiling Note This is subject to local codes and standards and pipe network design specifications e Where expansion or contraction of pipes is likely either after installation or on a continuous basis place pipe clips 0 5m 1 5 ft away from any bends couplings and socket unions as these may interfere with the movement of the pipe It is recommended to use appropriate pipe supports which don t clamp securely around the pipe thus allowing the pipe to freely expand and contract within e Refer to Chapter 5 for details on mou
28. ipe with an end cap Attach the walking stick to a Tee adaptor using a reducing connector if required Join the Tee to the sampling pipe at the specified spot A Sampling Pipe B Beam Pockets Sampling holes Figure 5 5 Inter beam sampling using a walking stick Underside of the Beams Run the sampling pipe with sampling holes facing down along the underside of the beams www xtralis com 19 VESDA Pipe Network Installation Guide VESDA by Xtralis A Sampling Pipe B Beam Pockets Figure 5 6 Inter beam sampling 5 1 5 Capillary Tubes Microbore and Drop Pipes Installation 5 1 6 Capillary Tubes and Drop Pipes Installation Capillary tubes and drop pipes are used to monitor the environment from areas away from the sampling pipe Capillary tubes and drop pipes are typically used for Concealed and In Cabinet sampling Guidelines for Capillary and drop pipes 1 I e wN Note Install the sampling pipe using Tee adaptors where the capillary tubes or drop pipes need to be attached Fix appropriate sized reducing connection to the Tee Connect capillary tube or drop pipe to the reducing connector Run the capillary or the drop pipe to the required sampling point Attach sampling point fitting Microbore only requires steps 4 and 5 5 1 7 Concealed Sampling Concealed sampling is used when there is a requirement for aesthetics or for security Capillary tubes and drop pipes are normally used for concealed sampling
29. l 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 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 Xtralis product incorporates a laser device and is classified as a Class 1 laser product that complies with FDA regulations 21 CFR 1040 10 The laser is housed in a sealed detec
30. lle 3 Sampling pipes on return air grilles having high velocity air flows which may require mounting on standoff posts to keep the sampling pipe 25 mm to 200 mm 1 to 8 inches away from the grille Refer to the pipe network design for requirements Figure 5 9 Pipe position on a return air grille Return air grilles may be removed and replaced for maintenance To ensure the orientation of sampling holes are maintained at the correct angle once the air grille is replaced e Cut sampling pipe of specified diameter to the length of the air grille e Fix appropriate pipe mounting clips or pipe clamps with standoff posts over the return air grille 4 Connect the sampling pipe using socket unions and do not glue them in place The socket unions must be between the end of the air grille and the mounting clips or pipe clamps Refer to Figure 5 9 for details www xtralis com 21 VESDA Pipe Network Installation Guide VESDA by Xtralis Generally a VESDA VLP or VESDA VLS detector should not monitor more than four AHUs a VESDA VLC should not monitor more than two and a VESDA VLF should not monitor more than one AHU a 5A Sampling Pipe A mN B Return grille End cap without a hole D Sampling hole Figure 5 10 Sampling over a return air grille 5 Drill sampling holes as specified in the design documents 6 The pipework must always have an end cap without a hole in it 5 2 2 Supply Air Sampling Refer to Return Air Grilles
31. nting requirements for specific types of installations 14 www xtralis com VESDA by Xtralis VESDA Pipe Network Installation Guide 4 5 Bending Pipes Whenever possible use the appropriate precast pipe bends Where no precast bends are available pipes can be bent within certain limits to change pipe direction or to go around small obstructions When bending a pipe e UseBending springs e UsePipe Benders e Do not bend on sharp objects or heat the pipe e Replace any pipe bends that have kinks The ASPIRE2 modelling software is used to test if a proposed pipe network will meet customer and local authority codes and standards Bends that are not entered onto the design will cause there to be differences between the expected pipe network performance and the performance that will be tested during commissioning If the changes are too great the commissioning engineer will have to investigate and may require that pipework to be replaced to meet the original specification 4 6 Drilling Sampling Holes Sampling holes are drilled into the pipes once the pipe network is installed The ASPIRE2 Installation Data Pack IDP coordinates the positions of the sampling holes Drill sampling holes at the positions marked in the IDP The IDP will specify the diameter required for each sampling hole on the grid It is important that correct diameter sampling hole is drilled as the hole size effects the performance efficiency of the VESDA System The size o
32. ntry point into the cabinet Drill an appropriate size hole in the cabinet floor or use an existing cable entry port 26 www xtralis com VESDA by Xtralis VESDA Pipe Network Installation Guide N N DO 0 Note Install a sampling pipe as per the guidelines for Floor Void Installation in Section 5 1 3 on page 19 bult do not drill sampling holes unless specified in the pipe network design or IDP specifications Use Tee adaptors where the capillary tubes or drop pipes need to be attached Fix appropriate sized reducing connection to the Tee Attach capillary tube or drop pipe to the reducing connector Run the capillary or the drop pipe into the cabinet Ensure that the capillary tube or drop pipe runs right to the top of the cabinet and is supported there by a mounting clip or pipe clamp Unless specified otherwise the sampling hole should be 25 mm to 50 mm 1 to 2 inches below the top of the cabinet Attach sampling point fitting to ensure the correct sampling hole size Microbore installations only require steps 1 and 6 to 9 5 3 2 On Cabinet The sampling pipe is installed directly over the cabinets that need monitoring The sampling holes are drilled so that they face into the air stream from the cabinet Each cabinet must have at least one dedicated sampling hole The installation guidelines for on cabinet sampling are the same as for Return Air Grilles and Air Ducts refer to Section 5 2 on page 21 Figure 5 16 On c
33. pling pipe Figure 3 4 Y Piece A Tee B and J Piece C Note It is important that the air sampling pipe is branched in the direction away from the detector 3 6 Reducing Connectors Reducing connectors are used to attach pipes having different internal outer diameters These are typically used to connect capillary tubes and drop pipes to the sampling pipe Figure 3 5 Reducing Connector 3 Pipe Adaptors The pipe adaptor is used to connect imperial size pipes to the detectors pipe Inlet manifold All detectors shipped to U S A include pipe adaptors where applicable IH m 4 y Figure 3 6 Pipe Adaptor www xtralis com VESDA by Xtralis VESDA Pipe Network Installation Guide 3 8 Capillary Tubes and Drop Pipes Capillary tubes are lengths of flexible tubing that are connected to the sampling pipe Capillary tubes are typically used to sample air away from the air sampling pipe or in instance where focused air sampling is required Capillary sampling is used for in cabinet sampling and in instances where the sampling pipe requires to be concealed from the sampling area Drop pipes are a variation of the capillary tube and serve the same purpose n LB LLL Cy B Samplingpipe mum D C Reducing connector F Miniature sampling point LI E Pusnsamping pin F 3 9 Miniature Sampling Points Miniature sampling points are attached to the sampling end of capillary tubes There are two types of miniatur
34. s com iii VESDA Pipe Network Installation Guide VESDA by Xtralis This page is intentionally left blank IV www xtralis com VESDA by Xtralis VESDA Pipe Network Installation Guide Table of Contents t iios a DURS ERR NER 3 1 1 Pipe Network Ie iii iii 3 2 Installation Steps sssssl iii eee eee eee 5 2 1 Pipe Network Installation 0 ie ei 5 2 2 Microbore Tube Network Installation 5 3 Components of a Pipe Network DU UU 7 3 1 Pipe Line ek ta aan kaha BIA NA aaa na a NA Naa NADA GU T 3 2 Ne KA AT T 3 3 Couplings Socket Unions and Expansion Joints 2 22 22 22 222 T 3 4 Bends and Elbows ii ESE EE roO E E SE GR EG ER OGE WE ISO EUM DS SE nate 8 3 5 Tees Y Pieces and J Pieces EE EE EG EG cece eee cece EE EE EG 8 3 6 Reducing Connectors EES a 8 3 7 Pipe Adaptors cds ob EE Ge AG naa AO sea SE GE O Bana a De ee DE ee eu 8 3 8 Capillary Tubes and Drop Pipes EE EE SS SS EE e rmn 9 3 9 Miniature Sampling Points sene ll 9 3 10 Microbore Sampling Points Rm rIII 9 9 11 Mounting FIXTURES AA 10 3 12 Solvent Cement ssl eee iii eee 10 RN 11 4 Working with Pipes EES SE EG EG GE GE ee 13 4 t GUKHNQPIpeS nr ollare nni ro 13 4 2 Joining and Bonding aa 13 4 3 Cementing Pipes Together sess sls 13 4 4 Mounting aa 14 4 5 Bending Pipes ss SeSe se Co
35. ssment of the fitness or suitability of the products for your purpose You acknowledge that you have notrelied 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 ofthe 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 j VESDA Pipe Network Installation Guide VESDA by Xtralis Scope The VESDA Pipe Network Installation Guide is written for those involved with the design specifications management installation and maintenance of VESDA systems It is assumed that those using this guide will have knowledge of the local codes and standards It is recommended
36. ted 2 mm 0 079 in diameter is required at the end of each capillary tube or drop pipe All capillary tubes which are close to the limits suggested above should be checked by ASPIRE2 before installation www xtralis com 15 VESDA Pipe Network Installation Guide VESDA by Xtralis Installations using microbore for the VESDA VFT 15 are similar to installations using capillaries but only require the microbore tubing to be run to the sampling point and a microbore sampling point fitting The VESDA VFT 15 detector requires that each microbore tube has a fixed length of 50m 164 ft 6mm 0 24 OD 4mm 0 167 ID and comprises one sampling point at the end lt is recommended that excess microbore tube be coiled near the sampling point end and for good aesthetic practice be run through the roof or floor spaces Note For reliable smoke detection and flow monitoring performance the VESDA VFT 15 detector must be connected to a balanced network containing equal length Microbore Tubes of 50 m 164 ft Where the distance between the detector and sampling hole is less than 50m 164ft refer to the VESDA VFT 15 Product Guide for information on using a combination of reduced diameter Microbore Tubes and reducing connectors to achieve the required system performance 16 www xtralis com VESDA by Xtralis VESDA Pipe Network Installation Guide 5 Installing Pipe Networks Pipe network designs are specific to a site and are dependant upon site conditions
37. tes PIG mST Ge ERU RD ONE dep baa Glad Ina ia dedi 15 4 6 Drilling Sampling Holes LusseesessnnlmmmRRRRRRmRmmIl 15 Met Labeling RR Km 15 4 8 Using Capillaries Microbore and Drop Pipes sess 15 4 9 Using Capillaries and Drop Pipes essen mmm 15 5 Installing Pipe Networks sssnsmnsmI IRR Ee 17 5 1 Ceilings and Floors ss GE ER Usi e p IIS 17 5 2 Return Air Grilles and Air Ducts EE EE EE eee cee eee cece cess 21 5 3 Cabinet and Rack Detection iii 26 od OMG SOC Es ee ee en ee DE ene ne M ee 29 6 Recording Pipe Network Details eeeen esses ns 31 Nocera EL E A MU M E 33 www xtralis com 1 VESDA Pipe Network Installation Guide VESDA by Xtralis This page is intentionally left blank 2 www xtralis com VESDA by Xtralis VESDA Pipe Network Installation Guide 1 Introduction The VESDA system is an aspirated smoke detection system It is dependent upon a properly designed and installed air sampling pipe network Pipe network design is explained in the VESDA Pipe Network Design Guide This guide instructs the reader on how to install an efficient air sampling pipe network It informs the reader about the components used in a pipe network Installation and guidelines in their application Procedures for some of the more common installations are explained
38. that may have been made to the original plan If the installed system is significantly different to the original plan you may need to use ASPIRE2 to check that the new design will actually work 12 Afterall the tests have been completed bond the pipes together using the appropriate cement solvent Do not glue the pipes running into the detector manifold as this can make it impossible to service the detector and will void the warranty 13 Use appropriate labels and tag the sampling pipe and sampling holes 14 Update the design documents with any further changes that may have been made during the tests and give a copy of the updated design documents to the person who will be commissioning the system Oy OV EOD 2 2 Microbore Tube Network Installation Note For reliable smoke detection and flow monitoring performance the VESDA VFT 15 detector must be connected to a balanced network containing equal length Microbore Tubes of 50 m 164 ft Where the distance between the detector and sampling hole is less than 50m 164ft refer to the VESDA VFT 15 Product Guide for information on using a combination of reduced diameter Microbore Tubes and reducing connectors to achieve the required system performance The following instructions provide the basic sequence of steps when installing a microbore tube network for use with the VESDA VFT 15 detector 1 Check the design documents to gather information on the location of sampling points Update the d
39. tor 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 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 or VPS 100US 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 xtrali
40. ts 5 1 2 In Ceiling Installation In Ceiling installations are pipe networks in the ceiling void between the roof of the building and the false ceiling panels guae 11 12 13 14 15 18 Figure 5 2 Typical installation in a ceiling void Check the design documents to gather information on the size and configuration of the pipes The design documents could include pipe network design specifications or an ASPIRE2 Installation Data Pack IDP or a pre engineered design Mark the spot where the detector is to be installed Identify and measure the spots for securing the pipe as required by the design documents and guidelines for mounting pipes Refer to Section 4 2 on page 14 Ceiling joists and or support beams can be used to secure the pipe Install the detector See the detector documentation for details Secure the pipe using appropriate conduit clamps or self locking ties ensuring that the distance between the roof and the pipe is according to the design specifications For further information refer to Section 3 11 on page 10 When securing the pipes follow the guidelines discussed in Section 4 2 on page 13 Do not glue the pipes at this stage Special attention needs to be given to the expansion and contraction of pipes in ceiling voids as the pipes are likely to be subjected to a higher level of temperature fluctuations In areas of wide temperature fluctuations it is strongly suggested that expansion Joints are
41. ure 5 17 In rack Installation LUO JE I Li Sic Figure 5 18 Installation between racking www xtralis com VESDA by Xtralis VESDA Pipe Network Installation Guide 5 4 Open Spaces 5 4 1 Vertical Sampling Pipe Installation Vertical installation of sampling pipes is used to sample air at different layers to offset the effects of stratification Vertical sampling is typically used in areas that have high ceilings In addition to On ceiling sampling pipes are also installed vertically ensuring that air can be sampled at different heights To install Vertical sampling pipes follow the guidelines for Ceilings and Floors in Section 5 1 on page 17 I II T e Er T E di TIC z i AT PIE Legend A Detail of sampling hole B Stratified smoke layer Vertical sampling holes Figure 5 19 Vertical sampling www xtralis com 29 VESDA Pipe Network Installation Guide VESDA by Xtralis This page is intentionally left blank 30 www xtralis com VESDA by Xtralis VESDA Pipe Network Installation Guide 6 Recording Pipe Network Details Once you have finished installing the pipe network you will need to update the design documents with any modifications It is critical that you record any changes from the original plan for the commissioning and testing phases at the site If significant changes to the original plan were required you should retest the new proposed pipe network
42. ure that the power is switched off prior to commencing work on the cabinet Make sure that there are no electrical wires that may be damaged while drilling the hole Caution Check to see that dust or debris such as metallic shavings from drilling the holes will not N damage the equipment In Cabinet sampling installation from the top 1 Determine the entry point into the cabinet Drill an appropriate size hole in the cabinet top or use an existing cable entry port Install the sampling pipe using Tee adaptors where the capillary tubes or drop pipes are to be run to the cabinet Attach appropriate sized reducing connection to the Tee Attach capillary tube or drop pipes to the reducing connector Run the capillary or the drop pipe into the cabinet Unless specified otherwise insert the capillary tube or drop pipe just below the interior of the cabinet top to a depth of 25 mm to 50 mm 1 to 2 inches 7 Attach sampling point fitting to ensure the correct sampling hole size N DY RY Note Microbore installations only require steps 1 and 5 to 7 In Cabinet sampling installation from under the floor Warning Ensure that the Power is switched off prior to commencing work on the cabinet Make sure that AN there are no electrical wires that may be damaged while drilling the hole A Caution Check to see that dust or debris such as metallic shavings from drilling the holes will not N damage the equipment 1 Determine the e
43. uring that the distance between the ceiling and the pipe is according to the design documents 6 Mount and join the pipes onto the clips as per the guide lines in Section 4 4 on page 14 Do not glue the pipes at this stage 7 Drill sampling holes in the pipe ensuring that the spacing between sampling holes is as per the design documents and the holes are at the correct orientation 8 Check to see if the design documents require end caps with holes Install as required 9 Runthe pipe to the detector 10 Insert the pipes into the detector ensuring there is a minimum of 500 mm 20 in of straight pipe before the pipe enters the detector Do not glue the pipes to the detector manifold www xtralis com 17 VESDA Pipe Network Installation Guide VESDA by Xtralis 11 12 13 14 Update the design documents with any changes that may have been made to the original plan If the installed system is significantly different to the original plan you may need to use ASPIRE2 to check that the new design will actually work After all the tests have been completed bond the pipes together using the appropriate cement solvent Do not glue the pipes running into the detector manifold as this can make it impossible to service the detector and will void the warranty Use appropriate labels and tag the sampling pipe sampling holes and test points where required Update the design documents with any further changes that may have been made during the tes
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