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VESDA Maintenance Guide

VESDA

18

www.xtralis.com

8.1.2

Replacing VESDA VLP and VESDA VLS Aspirators

Replacement Procedure

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 8-2.

Figure 8-2: Removing the Air Filter Cartridge for VESDA VLP or VESDA 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.

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Summary of Contents for VLC

Page 1: ...VESDA Maintenance Guide VESDA VLP VESDA VLS VESDA VLC VESDA VLF VESDA VLI April 2020 Document 10256_09 Part Number 30010 ...

Page 2: ......

Page 3: ...amage 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 produc...

Page 4: ...Description 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 electric shock This may lead to death or permanent injury Warning This icon is used to indicate that there is a danger of inhaling dangerous substances ...

Page 5: ...ch 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 ...

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Page 7: ...Filter s 8 4 Power Supply Maintenance 9 5 Sampling Pipe Network Maintenance 11 5 1 Important Pre maintenance Preparations 11 5 2 Wide Bore Sampling Networks 11 6 Post maintenance testing 13 7 Annual Testing 15 7 1 Detector Tests 15 7 2 System Fire Panel Notification Tests 15 8 Replacing Detector Components 17 8 1 VESDA VLP and VESDA VLS 17 8 2 VESDA VLC 27 8 3 VESDA VLF 30 8 4 VESDA VLI 32 A Parts...

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Page 9: ...ion on determining an appropriate maintenance schedule l Appendix C provides a sample maintenance log which should be completed as part of each maintenance visit 1 2 Maintenance Overview Who and When To maintain the VESDA system at its peak performance level the suggested maintenance schedule should be followed Maintenance can be conducted by the original installer VESDA distributor or a service c...

Page 10: ...intenance Schedule Summary Table 1 1 below contains a summary of the suggested maintenance schedule for clean environments Table 1 1 Maintenance schedule summary Maintenance Task Every Visit Monthly Six Monthly Annual Biennial Check Detector Filter Refer to Recommended VESDA Maintenance Period Filter Replacement Frequency Appendix B Check Power Supply Inspect Pipe Network Check Air flow per pipe P...

Page 11: ...adings recorded in the 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 ...

Page 12: ...pical operation during the test period 9 Compare the results with Appendix B on page 49 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 on page 49 12 Using Xtralis VSC return the significant smoke chang...

Page 13: ...ector 8 Remove dust from around the pipe inlets 9 Disconnect all pipes from the detector inlet s and exhausts then cover them to ensure that no unwanted material can enter the detector 10 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 Chapter 8 or the detector Product Guide and bl...

Page 14: ...ted 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 VESDA VLP VESDA VLS and VESDA VLC only 3 Compare the raw airflow against previous historical data Notes l Progressive decreases in the raw ...

Page 15: ... as required by local codes and standards VESDA products are designed to operate between 18 VDC and 30 VDC We recommend as an absolute minimum that you check the following l Input voltage from DC power supply to detector l Output voltage from detector to other devices l Backup battery voltage 24 VDC l Charging backup battery voltage typically 27 6 VDC ...

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Page 17: ...dirt and dust Follow the instructions below to clean your sampling pipe network 1 Ensure that detectors are isolated from the monitoring panel and fire suppression systems 2 Notify the relevant authorities that the work is being performed 3 Check and record the current airflow for before and after comparison 4 Disconnect the detector power supply 5 Remove all pipes from the detector inlet s and ex...

Page 18: ...e and connect them to the capillary tubes 10 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 11 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 dete...

Page 19: ...rm thresholds and amount of smoke injected may have an impact on the results You should compare times with the ASPIRE 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 ASPIRE calculations In the event that there is a ...

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Page 21: ...e level of smoke into the required sampling holes 6 Record Transport 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 y...

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Page 23: ...lter cartridge label as a physical reminder of when the next service is expected Note The detector must have the power turned on while the air filter cartridge is being replaced Replacement Procedure 1 Slide down and remove the air filter cover A in Figure 8 1 below 2 Unscrew the recessed phillips head screw B in Figure 8 1 below Figure 8 1 Replacing air filters in VESDA VLP and VESDA VLS detector...

Page 24: ...located on the front panel Mark out this connector position if unsure about the cabling 4 Remove the air filter cartridge Refer to Figure 8 2 Figure 8 2 Removing the Air Filter Cartridge for VESDA VLP or VESDA VLS aspirator replacement 5 Remove the HPCs securing screw 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...

Page 25: ...e Elbow and Aspirator 11 Reattach the exhaust pipe elbow and filter card assembly A to the aspirator B exhaust outlet as shown in Figure 8 4 above 12 Wipe the manifold outlet flange surface if dirty 13 Slide the aspirator between the fingers until fingers lock over aspirator Check that the aspirator does not come off when lifted 14 Reconnect the aspirator cable loom to the cable socket on the HPC ...

Page 26: ...ith VSP 006 NEN label OR firmware is less than or equal to 3 15 00 See Notes X VLS If manifold is fitted with turbulators AND there is NO VSP 009 NEN label AND firmware version is greater than or equal to 3 17 00 X If manifold is NOT fitted with turbulators OR Chassis is labelled with VSP 006 NEN label OR firmware is less than or equal to 3 15 00 See Notes X Notes l In most countries it is possibl...

Page 27: ... 5 Remove Front Cover Note Refer to the Xtralis VSC online help for information on using the software Open the detector and disconnect cables 1 Open the front panel 4 2 Disconnect the power supply cables 5 from the detector termination card 3 Disconnect the two chassis manifold wiring connectors connected to the termination card 4 Disconnect the head processor card cable connector 6 from the front...

Page 28: ...r cable connector 10 and scanner motor connector VESDA VLS only 11 from the processor card 4 Unscrew the chassis retaining screws 12 5 Using a flat blade screw driver disengage the chassis retaining clips 13 from the detector housing and remove the chassis assembly 14 7 12 8 13 13 VSP 006 NEN 14 9 10 11 Figure 8 7 Remove the chassis Remove the manifold 1 Unscrew the manifold retaining screws 14 2 ...

Page 29: ... 1 is factory aligned to the pipe inlet manifold 2 Do not remove the flow sensor card from the manifold as this voids the detector warranty l Ensure that the pipe inlet manifold retainer screws 3 are not protruding from the bottom of the manifold as this will prevent the manifold from being aligned correctly Install the chassis assembly and connect cabling 1 Align and install the chassis assembly ...

Page 30: ...ush down on the left hand side of the board as shown C until the retaining clips 17 lock the processor card into the correct position 3 Install the cardboard cover 18 of the processor card 17 16 15 C B Figure 8 11 Secure the processor card Note l Ensure that the wiring cables connected to the processor card 15 are correctly routed Incorrect routing of the wiring cables will prevent correct install...

Page 31: ... 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 Replacement Procedure 1 Mark out the wire positions on each terminal socket before removing them 2 Remove all terminal plugs C from sockets leaving the wires attached to the plugs refer to Figu...

Page 32: ...ed it may contain dust dirt and background pollution such as soot or coal dust Inspection and Cleaning Procedure 1 Remove the pipes leading into the VESDA VLS detector 2 Press and hold down the Silence Scan button on the front of your VESDA VLS detector The valve scan test will start If your VESDA VLS does not have a Silence Scan button use your PC and Xtralis VSC to start the valve scan test step...

Page 33: ...being replaced Replacement Procedure 1 Open the front cover 2 Locate the air filter cartridge A inside the detector compartment as indicated in Figure 8 15 below 3 Undo the recessed philips head filter screw B in Figure 8 15 below 4 Lift out the air filter cartridge Figure 8 15 Replacing the air filter cartridge in VESDA VLC detectors 5 Insert a new air filter cartridge A in Figure 8 15 above 6 Ti...

Page 34: ...ator 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 degree 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 Isola...

Page 35: ...a tight fit over the pipe 13 Reinsert the termination card into the interface card 14 Secure the termination card with the four screws 15 Connect the aspirator cable connector to the socket on the aspirator the connector is keyed and can only be inserted one way 16 Check that all wires are secured to their connectors or terminals 17 Power up the detector and check that the aspirator is running 18 ...

Page 36: ... cleaned and re used l Ensure that the detector remains powered up during filter replacement and that a new filter cartridge is available Replacement Procedure 1 Push in the security tab and lift up the field service access door A in Figure 8 17 below 2 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...

Page 37: ... Swing the aspirator out then lift and remove it from the detector Notes l Any time the aspirator is removed ensure that the area surrounding it is clear of dirt and debris before it is replace l 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 ...

Page 38: ...the Intelligent Filter when the flow of filtered air falls below the minimum threshold when compared to the flow of un filtered air Remove the Intelligent Filter 1 Set the detector to Standby mode 2 Remove the front cover 3 Unclip the Intelligent Filter A by pulling the locking lever outward B 4 Remove the Intelligent Filter A B Figure 8 19 Intelligent Filter Removal Reinstall the Intelligent Filt...

Page 39: ... the Secondary Foam Filter To reinstall the Secondary Foam Filter follow the removal procedure in reverse order and execute the Reset Secondary Filter life command in Xtralis VSC Caution Do not reinstall a used filter 8 4 3 Replacing the VESDA VLI Aspirator Ensure the area surrounding the aspirator is clear of dirt and debris prior to replacement Care must be taken during aspirator replacement The...

Page 40: ...tector does not report any fault conditions 7 Perform a smoke test and ensure detector response is as per commissioning data 8 If the replacement aspirator is brand new execute the Reset Aspirator Life command in Xtralis VSC 8 4 4 Replacing the VESDA VLI Chamber Assembly Notes l It is important to precisely follow the sequence below in order to avoid kinking the tubes l Remove the longer tube near...

Page 41: ...he chamber Figure 8 25 Figure 8 25 Remove Chamber Mounting Screws 6 Use a 10mm spanner or a large flat bladed screwdriver to press down on the black ring near the secondary filter B whilst simultaneously using the other hand to remove long tube Figure 8 26 Figure 8 26 Remove Long Tube ...

Page 42: ...he step above on the black ring C near the aspirator to remove the shorter tube Figure 8 27 Figure 8 27 Remove Short Tube 8 Gently remove the Chamber To prevent the tube from kinking lift the chamber while removing the tube Figure 8 28 Figure 8 28 Lift Chamber ...

Page 43: ...amber Assembly 1 Ensure that the 24V input is still disconnected 2 Plug the ribbon cable from the chamber into the main board Figure 8 29 Ensure that the cable connector is fully in and arms are locked 3 Fold the ribbon cable under the chamber and hook it on the tabs provided Figure 8 30 Figure 8 30 Ribbon Cable Hooks 4 Insert chamber in slots but hold the chamber 20mm from bottom Figure 8 31 ...

Page 44: ...VESDA Maintenance Guide VESDA 38 www xtralis com Figure 8 31 Insert Chamber ...

Page 45: ...short tube into the Cartsick connector under the fan and lower the chamber while inserting Figure 8 32 Figure 8 32 Lift Chamber 6 Insert the short tube until the white tape touches the black ring on the Carstick connector Figure 8 33 Figure 8 33 Insert Short Tube ...

Page 46: ...touches the Carstick connector Figure 8 35 Complete Long Tube Insertion 9 Insert the two chamber screws Figure 8 25 10 Reinstall the Intelligent Filter Refer to Section 8 4 1 on page 32 for further information 11 Power up the detector by reconnecting the 24 Volt input 12 Wait approximately 10 minutes to ensure that the detector does not report any fault conditions 13 Perform a smoke test and ensur...

Page 47: ...7 Figure 8 36 Aspirator Manifold Assembly Figure 8 37 Ultrasonics Manifold Assembly When replacing the Ultrasonics Manifold both components should be replaced The following procedure details how to replace the Ultrasonics Manifold Remove the Ultrasonics Manifold 1 Set the detector to Standby mode 2 Remove the front cover 3 Power down the detector by removing the 24V input 4 Remove the Intelligent ...

Page 48: ...9 l Disconnect the tube B as shown in 8 4 5 Press the collar around the tube inwards and gently pull the tube outwards The tube cannot be disconnected if the collar is not pushed inward evenly Figure 8 39 Ultrasonics Manifold Removal l Remove 3 screws A as shown in Figure 8 40 Figure 8 40 Remove Screws ...

Page 49: ... Filter Switch Cable B l Lift the bracket away from the base Figure 8 41 Remove Screws 8 Disconnect the Main Controller to Ultrasonics Micro Board ribbon cable C Figure 8 41 9 Remove the Ultrasonics Manifold Assembly Figure 8 42 l Remove 4 screws A l Lift the Ultrasonics Manifold Assembly away from the base Figure 8 42 Remove Ultrasonics Manifold Assembly ...

Page 50: ...Install the replacement Ultrasonics Manifold 1 Ensure that the 24V input is still disconnected 2 Follow the removal procedure in reverse order Replace both the Aspirator Manifold Assembly and the Ultrasonics Manifold Assembly with the new spare parts ...

Page 51: ...nted with VESDA logo VSP 101 Blank plate with French FIRE 1 Fault FF LEDs non EMC painted with Printed logo VSP 200 Blank plate EMC painted without VESDA logo VSP 540 Exhaust Deflector black A 2 VESDA VLS Part number Description VSP 000 Blank plate non EMC painted with VESDA logo VSP 001 Programmer Module VSP 004 Scanner Display Module VSP 005 Filter Cartridge VSP 009 VESDA VLS Detector Chassis As...

Page 52: ... Card CTC RO VSP 515 VESDA VLC VN Termination Card CTC VN VSP 540 Exhaust Deflector black A 4 VESDA VLF Part number Description VSP 005 Filter Cartridge VSP 021 Imperial Pipe Adaptors 25 mm to 27 mm 4 off US only VSP 540 Exhaust Deflector black VSP 702 VESDA VLF Remote Display Module VSP 715 VESDA VLF 500 Aspirator VSP 722 VESDA VLF 250 Aspirator A 5 VESDA VLI Part number Description VSP 030 VESDA...

Page 53: ...d HTC12 VSP 200 Blank plate EMC painted without VESDA logo VSP 208 12 relay Remote termination card RTC12 VSP 300 Blank plate non EMC painted without VESDA logo A 7 Accessories Part number Description VSP 003 VESDAnet Socket Kit VSP 102 Detector Relay Processor Module Blank DRP VSP 103 Scanner Relay Processor Module Blank DRP VSP 200 Blank plate EMC painted without VESDA logo VSP 300 Blank plate n...

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Page 55: ...to frequent access or minor building leakage 2 Fully enclosed and usually air conditioned with some filters fitted high airflow extraction systems or standalone 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 church...

Page 56: ...in acceptable health standard for occupants May use extensive stage smoke or fog Applications like amusement park rides coal fired power station fertilizer factory waste treatment tunnels bus terminals etc Usually above 0 03 obs m 0 01 obs ft At least every 12 months At least every 6 months Refer to Class 6 Special Case May require water trap in high humidity climate 6 Special Cases Usually fits w...

Page 57: ...nformation 1 Record airflow use table below 2 Download and save event log via Xtralis VSC Yes No 3 Download and save configuration file via Xtralis VSC Yes No 4 Give a copy of event log and configuration file to site manager Yes No Flow before actual Flow after actual Pipe 1 Pipe 1 Pipe 2 Pipe 2 Pipe 3 Pipe 3 Pipe 4 Pipe 4 Detector faults present Actions to fix Parts replaced Clean pipes Filter Ye...

Page 58: ...cation at detector Yes No tested fire alarm and fault notification at monitoring system Yes No compared current results to commissioning data Yes No returned the system to normal operation mode Yes No Record any other activities undertaken Circle the detector s environment class 1 2 3 4 5 6 Record filter replacement frequency months Expiration Date Record detector maintenance period months Next vi...

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