Discovery ASD-1 Product Guide - Apollo Fire Detectors Limited
Contents
1. 30 ft to avoid significant reduction in the airflow Care should be taken to position the new exhaust outlet where it cannot be accidentally or deliberately blocked Return air pipes need to be as short as possible to minimize the effect of airflow resistance in the return air pipe network 4 6 Filters Figure 4 3 Filter at inlet of system The sampled air is passed through a filter order code 29600 946APO before entering the detector chamber 4 7 Standard Configurations 4 7 1 Configuration with Single Pipe End Cap with single 8mm hole Figure 4 4 Example of the Discovery ASD 1 system with one pipe Note Please see the table in Chapter 8 for EN54 20 hole and pipe length limits for certified detectors 12 www apollo fire co uk Apollo Fire Detectors Discovery ASD 1 Product Guide 5 Set up 5 1 Display Functions The icons that are present on the system display are shown below 1 e BARGRAPH of AIRFLOW SPEED CP O000000000 0 1 2 3 4 5 T 8 234 N SOC AIRFLOW OK HIGH AIRFLOW LOW AIRFLOW SOK HI Lo 5 O POWER ON O 6 O GENERAL FAULT Mains PSU Option Only 7 O MAINS FAILURE Mains PSU Option Only ENS 8 O BATTERY LOW Mains PSU Option Only 9 O FAN FAULT 10 CODE ENTRY CODE 11 O UNLOCK www apollo fire co uk 13 Discovery ASD 1 Product Guide Apollo Fire Detectors 5 2 User Functions Press and hold SELECT and CHANGE keys simultaneously for 1 sec to initialize function selection gt Press a2. 1 Product Guide 9 Problem Solving Power light flashing Ensure supply to BATTERY connector within limits No lights on display Ensure supply leads correctly orientated Ensure that BAT FUSE Fan not running correctly seated in socket and fuse not blown No lights on display Ensure ribbon cable fully seated into main amp display boards Fan running OK FLOW HI or FLOW LO light on Ensure sampling pipes correctly installed lid fitted and box fully sealed Ensure flow calibration procedure has been carried out Section 5 2 Ensure filters are clean Chapter 7 Flow reading on Bargraph display Decrease Flow sensitivity setting and re calibrate air flows Section moves erratically 5 2 Flow reading on Bargraph Increase Flow sensitivity setting and re calibrate air flows Section 5 2 unresponsive to broken blocked pipe Detector s unresponsive to Ensure sampling pipe installed correctly and undamaged Chapter 4 smoke tests Ensure that holes and pipe length do not exceed limits for detector Chapter 8 Ensure that the baffles are fitted Ensure that recommended test method is used Section 6 2 Increase fan speed and re test www apollo fire co uk 23 Discovery ASD 1 Product Guide 24 This page is intentionally left blank Apollo Fire Detectors www apollo fire co uk Apollo Fire Detectors Discovery ASD 1 Product Guide 10 Specifications Number of Point Detectors 1 Discovery Optical Dimensi
3. good airtight seal Solvent adhesive should not be used for this joint 4 2 Fixings The normal fixing methods are pipe clips saddle clamps or even tie wraps Fixing centers are typically 1 5 m 4 9 ft apart 4 3 End Cap with Sampling Hole A ra Endcap AS Figure 4 1 End cap with 8mm hole drilled in center BO 8mm Sampling Hole 4 4 Bends Figure 4 2 45 bend and 90 swept bend Bends are either 45 or 90 For 90 bends it is important that swept bends are used and not sharp elbows as this will introduce unnecessary pressure losses and increase the response times from holes beyond the bend www apollo fire co uk 11 Discovery ASD 1 Product Guide Apollo Fire Detectors 4 5 Exhaust Where the Discovery ASD 1 is located outside the protected area consideration must be given to returning the exhaust air to the protected environment to balance pressure differences that may exist between the two areas In the majority of applications this is not necessary as pressure differences are minimal Examples of where the exhaust should be returned to the protected area include e where pressure differences exceed 50 Pa from where the detector is located outside the protected area e where there are hazardous substances inside the protected area for example hospital operating theatres laboratories Pipe of the same specification as the sampling pipe runs should be used and its length limited to a maximum of 10 m
4. iii cece cece ccc ceccecceeceeceeceeees 12 D TOOTH aoe ti Gaeta erate Beet se daino lie dille ia st node 13 Oot DISHA FUNCHONS scr a ar Lo nies Sela e ye tad as 13 5 2 User FUNCUOMS ui one eni dda era E a iaa e 14 0 LEIDO NOLES obpr tics hee obio ans ol dicasi ica od lo td aro 16 O SUN es es a e do eo ios att 17 6 1 PolMtDetectorS 2302635 ta tel caldo credo ta toi nea be io cual cee ae led rl do 17 02 OV Eaa eaaa rias 17 E AAA A aab 19 7 4 AirInletFilterReplacement 0 00000000 ii 19 7 2 Point Detector Replacement 0 iii iii iii 19 EN54 20 Certified Detector iii iii iii 21 Problem Solving 25sec hs So eee ete iii 23 10 Specifications cece ccc enc dnc ai 25 10 1 Typical Supply Current amp Fan Speed 2 eee iii 25 www apollo fire co uk 1 Discovery ASD 1 Product Guide Apollo Fire Detectors This page is intentionally left blank 2 www apollo fire co uk Apollo Fire Detectors Discovery ASD 1 Product Guide 1 Introduction The Apollo Discovery ASD 1 is an aspirating smoke detection system that utilizes an air sampling pipe network to draw air towards conventional or analog addressable point detectors in an aspirated enclosure The single channel Discovery ASD 1 system has provision for one or two point detectors allowing for single failsafe redundancy or mixed detection strategies Point detectors are w
5. maintain an IP65 rating to ensure that air is only drawn through the air sampling pipe network 3 2 Connect Wiring In order to gain access to the main circuit board for connection of the wiring remove the display detector mounting board which is held in place by the clear top cover To fully remove the display detector mounting board disconnect the ribbon cable from the rear of the board Caution Care should be taken when removing the board to ensure that the ribbon cable on the underside is not strained Caution Due tothe failsafe relay opposite switch positions are printed on the PCB Warning To prevent risk of electric shock or possible injury from the rotation of the high performance fan the system should be isolated from the power supply when the display board is removed All connections to the main circuit board are to pluggable terminals that can accommodate wire sizes up to 2 5MMm www apollo fire co uk 9 Discovery ASD 1 Product Guide Apollo Fire Detectors Loop External PSU Input aooo A Loop In Loop Out Fault 2 20K Resistor APOLLO 55000 70 MODULE Figure 3 1 Field connectors forthe Discovery ASD 1 detector 3 3 Battery Terminal Figure 3 2 Ferrite core and battery supply wiring The Discovery ASD 1 unit is designed to run from a 24 VDC supply The supply should be connected to the two way BATTERY connector on the main circuit board ensuring that the wires are correctly orientated
6. 1 product guide Check all components for damage and refer any concerns to your authorized representative It is necessary to procure screws and inserts appropriate for the installation location A Intake from Pipe Network c Figure 2 1 Detector Enclosure 2 1 Baffles It is necessary to fit baffles to the Discovery ASD 1 system to ensure that the samples airflow is directed towards the point detector The baffle is shaped to match the point detector and simply clips into position in the slots provided in the transparent lid www apollo fire co uk 5 Discovery ASD 1 Product Guide Apollo Fire Detectors 2 2 Mounting the Detector Enclosure Notes This equipment must be installed by a qualified installer in accordance with all local and national code requirements The detector assembly must be installed at an accessible position to facilitate maintenance and testing Ensure that there is sufficient clearance to mount the detector noting the location of air sampling pipes and cable entry points Owing to the rigid nature of the plastic pipe installation must provide for sufficient movement in all pipe work air inlet air exhaust and cable pipes to allow pipe ends to be easily fitted and removed Ensure that the exhaust pipe is free from any obstacles at all times Do not mount the detector assembly close to a heat source Mount the detector assembly in a secure location which is accessible only by authorised personnel i e
7. Apollo Discovery ASD 1 Product Guide December 2013 Part Number 29650 081 Documen tNumber PP2484 SA B SCOVERY ASD apollo ORLD CLASS FIRE SOLUTIONS Apollo Fire Detectors Discovery ASD 1 Product Guide Intellectual Property and Copyright This document includes registered and unregistered trademarks All trademarks displayed are the trademarks of their respective owners Your use of this document does not constitute or create a licence or any other right to use the name and or trademark and or label This document is subject to copyright owned by Apollo Fire Detectors 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 Apollo Fire Detectors 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 Con
8. The minimum recommended wire size is 16 x 0 25 mm 18 AWG or larger if the supply is further than 5 m 16 4 ft from the system A ferrite core is provided for EMC compliance This should be fitted to the supply wiring as shown in Figure 3 2 The power requirements are dependant on the fan speed Referto Section 10 1 on page 25 10 www apollo fire co uk Apollo Fire Detectors Discovery ASD 1 Product Guide 4 Pipe Installation This section provides a simple guide to pipe installation and should contain all the information required for simple installations based on the standard configurations shown in Section 4 7 More information on achieving an EN54 20 compliant pipe installation can be found in Chapter 8 Use appropriate pipe with a sampling point hole drilled along it s length The pipe run is terminated by a closed end cap unless the end cap is the sampling point The position of the sampling point should be in the accordance with the rules for the positioning of a point detector 4 1 Pipe Specification For EN54 20 compliance the pipe should be Red ABS to EN 61386 1 2004 Crush 1 Impact 1 Temp 31 with a nominal diameter of 25 mm or 0 98 in The sample pipe is normally supplied in 3 m lengths and is cut as required and joined by solvent welded sockets permanent or socket unions removable Note The Discovery ASD 1 inlet port is tapered to allow a push fit of the sampling pipe The pipe should be cut squarely to ensure a
9. ditions User Manual and product documents available from Apollo Fire Detectors 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 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 Apollo Fire Detectors 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 Liability You agree to install configure and use the products strictly in accordance with the User Manual and product documents available from Apollo Fire Detectors Apollo Fire Detectors 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 assessmen
10. e point detector into the base and rotate until fully seated Continue rotation until lock has been engaged 6 Secure the clear plastic cover to the housing using the four screws Notes e An audible snap indicates proper contact engagement e System will not operate with dust cover in place e Refer to the point detector manufacturer instructions for further information www apollo fire co uk 19 Discovery ASD 1 Product Guide 20 This page is intentionally left blank Apollo Fire Detectors www apollo fire co uk Apollo Fire Detectors Discovery ASD 1 Product Guide 8 EN54 20 Certified Detectors The Discovery Optical point detector has been independently tested and certified for use in the Discovery ASD 1 system and is suitable for EN54 20 approved Class C installations The following table shows the limits that should not be exceeded if the installation is to conform to Class C requirements All figures are based on the standard configurations shown in Section 4 7 with a fan speed of 9 unless otherwise stated Table 8 1 Tested and Certified Class C Detectors Point Detector Point Detector Sampling Hole Limits Maximum Pipe Maximum Holes Brand Model Length m APOLLO DISCOVERY 1x8mm End Hole 50 1 Optical Mode 1 only www apollo fire co uk 21 Discovery ASD 1 Product Guide 22 This page is intentionally left blank Apollo Fire Detectors www apollo fire co uk Apollo Fire Detectors Discovery ASD
11. ered 16 www apollo fire co uk Apollo Fire Detectors Discovery ASD 1 Product Guide 6 Testing Note Testing should only be carried out by qualified personnel Ensure that the proper authorities have been informed and that the unit has been isolated from the fire system if necessary to prevent unwanted alarms 6 1 Point Detectors e With the unit powered up and top cover removed the detectors can be tested for alarm functionality using methods described by the manufacturer e g aerosol spray e Anairflow test may also be performed at this time as the detector should report a low flow fault with the top cover removed 6 2 System The installed system must be checked with the top cover securely fitted If it is possible to get close to the sampling point then a basic functional check can be carried out with smoke matches or lighted paper etc Ensure that the system complies with manufacturer s instructions and all local and national code requirements www apollo fire co uk 17 Discovery ASD 1 Product Guide Apollo Fire Detectors This page is intentionally left blank 18 www apollo fire co uk Apollo Fire Detectors Discovery ASD 1 Product Guide T Maintenance Maintenance should only be carried out by qualified personnel To prevent unwanted alarms ensure that the proper authorities have been informed and that the unit has been isolated from the fire system Caution When installing or servicing the unit ensure that
12. ired directly into the signalling circuit connected to the monitoring fire alarm control panel Any alarms or faults derived from the analog or conventional point detector will be reported directly to monitoring fire panel through the signalling circuit for that detector The Discovery ASD 1 system provides airflow monitoring circuitry and an aspiration system that is configurable The airflow level is displayed on a ten element bar graph with adjustments for flow sensitivity and high low flow thresholds Flow failure is reported to the central panel via an internal mini switch module Important Note Aspirating Smoke Detectors supplied and installed within the EU from July 2011 must conform to the Construction Products Regulation EU 305 2011 CPR and the related European Standard EN 54 20 This unit has been tested and certified to ensure general conformance to the above directive and standard but strict adherence to this Product Guide is required to ensure that the installation meets these requirements in all respects www apollo fire co uk 3 Discovery ASD 1 Product Guide Apollo Fire Detectors This page is intentionally left blank 4 www apollo fire co uk Apollo Fire Detectors Discovery ASD 1 Product Guide 2 Installation The Discovery ASD 1 is provided with the following components 1 detector enclosure fitted with Discovery Optical point detector and Mini Switch Monitor 1 corner stud key 1 ferrite core 1 mounting template
13. ments where the sampled airflow may be affected by sudden temperature or pressure changes or if there is a risk of physical interference of the sampling point e g prison cell applications then it may be necessary to increase the delay between when flow limit has been exceeded and instigating a FLOW FAULT condition Table 5 2 Flow Delay Settings for the Discovery ASD 1 system Bargraph LED Flow into Fault a Seconds Flow out of Fault Seconds Note Timings are approximate Note The default flow delay setting is 1 5 3 3 Flow Sensitivity This setting determines the units responsiveness in reporting blocked sampling points or broken pipes The default flow sensitivity value of 9 will configure the unit to declare a flow fault whenever there has been a change in volumetric airflow of 20 from the calibrated reading for at least the duration of the flow delay see Section 5 3 For most installations especially if compliance with EN54 20 is required the default setting should be used In certain circumstances such as rapid changes in ambient air pressures due to air handling units doors opening closing etc the default setting may appear to be too sensitive Under these conditions the flow delay setting should be increased to allow time for the air pressures to stabilize after the temporary event Only under extreme environmental conditions or non standard pipe configurations should decreasing the flow sensitivity be consid
14. nd release SELECT key to sequentially step through functions PROGRAMMER Press and release CHANGE key to modify setting The relevant LED flashes continuously to indicate the function selected gt To enable updates to the system enter the three digit access code 510 To enter numbers into the system each number must be sequentially selected in turn For example to select 5 press the CHANGE key six times to illuminate the number 5 LED on the display then press the SELECT button During this operation the CODE LED flashes then the UNLOCK LED illuminates on successful entry 14 www apollo fire co uk Apollo Fire Detectors Discovery ASD 1 Product Guide A description of Discovery ASD 1 user functions are shown in the following table Table 5 1 User Functions for the Discovery ASD 1 System Function Display Special Instructions Set sensitivity of bar graph to FLOW OK flashes changes in airflow velocity Select the BARGRAPH LED FLOW HIGH flashes segment above which the FLOW HIGH LED will be illuminated Select the BARGRAPH LED FLOW LOW flashes segment below which the FLOW LOW LED will be illuminated Set FLOW DELAY time of both FLOW HI and FLOW LO LEDs Please see Section 5 3 for information channels both flash on flow delays Calibrate flow sensors FAN FAULT LED flashes CHANGE key must be pressed for at least 2 seconds to initiate the flow calibration process FAN and POWER LEDs flash to indicate calibration in prog
15. nt 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 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 This may lead to death or permanent injury Contact Us Apollo Fire Detectors Limited 36 Brookside Road Havant Hampshire PO9 1JR England 44 0 23 9249 2412 www apollo fire co uk ii www apollo fire co uk Apollo Fire Detectors Discovery ASD 1 Product Guide Table of Contents 1 WWATROCUICHION AAA A ia 3 2 Installation 05002 dal ist cdi ios tido 5 2 1 BANE AAA AA ees tte Ae illa art 5 2 2 Mounting the Detector Enclosure 0 20 02 e ee cece ccc eecceeecees 6 gt MINOLI SELL Ra 9 Oil WINNIACCESSS esilio na a 9 32 o AA RRA 9 3 3 Battery Terminal MAA 10 4 Pipe Installation _ 0 0 000000 iii iii iii iii iii 11 4 1 PIPE SPECINCALlIO Rcs ces es ee iste es rai 11 O A As ee Sa ila ii eg lil fili ii 11 43 End Cap with Sampling Hole 00 Lib i ce cee cece iii 11 4 4 ADENT a de LIA it 11 do Pasadena ili 12 doc AAA AAA 12 4 7 Standard Configurations
16. ons 258 6mmx165 7mmx320 6mm Filtration Single stage dust particle filter Flow Monitoring e Thermal device high and low thresholds e 10 element bar graph indication e Relay fault reporting Supply Voltage 18 30 VDC 24 VDC Nominal Relay Contact Ratings 1A 30VDC Maximum Supply Current 350 mA 24 VDC with no aspirating pipe See table below for typical Currents Fan Speeds Maximum Pipe Length Up to 50 m per pipe Aspirator e Control 10 programmable speeds e Pressure 250 Pa Environmental Protection IP65 with exhaust fitted IP23 without Operating Conditions e Tested to 10 to 55 C e Recommended Detector Ambient 0 to 38 C e Sampled Air 20 to 60 C e Humidity 10 to 95 RH non condensing Operating Humidity 10 to 95 RH non condensing Approvals EN54 20 by VdS G213105 Certification EN61000 6 3 2001 A11 2004 EMC EN60950 1 2006 Safety CPR CD0010 ASD 10 1 Typical Supply Current amp Fan Speed Bargraph vae Oo 1 2 3 4 s e 7 s 9 fasea Papa pajas e r olo Note Typical current consumption figures for different fan speeds Results are based upon an Discovery ASD 1 installation with 10 m 33 ft of standard 25 mm 0 98 in aspirating pipe per channel The unit was powered from a 24 VDC power supply www apollo fire co uk 25 Discovery ASD 1 Product Guide Apollo Fire Detectors Xtr D N 26327_00 Xtr P N 30497 26 www apollo fire co uk
17. ress Fanis temporarily stopped as part of the calibration process The system will reset and revert to normal operating mode when flow calibration is completed Pressing the SELECT key for longer than 1 second when the unit is unlocked will cause the unit to revert to normal operating mode www apollo fire co uk 15 Discovery ASD 1 Product Guide Apollo Fire Detectors 5 3 Set up Notes The Fan Speed Flow Limits and Flow Sensitivity need to be set for each installation prior to Flow Calibration and testing It is not possible to provide the settings for all possible installations but the following guidelines should assist in the commissioning of the unit 5 3 1 Fan Speed The Fan Speed should be set as high as possible to achieve the fastest transport time from the sampling point to the detectors this is especially important for longer pipe lengths and for installations that must conform to the requirements of EN54 20 referto Chapter 8 There is however a balance to be achieved between performance and the power requirements for the system and reference should be made to the current consumption figures in the specifications prior to setting this value 5 3 2 Flow Delays By default an increase or decrease in flow beyond the FLOW HIGH and FLOW LO limits will result ina FLOW FAULT after a delay of approximately 30 seconds Once the flow is returned to a normal level the fault condition will be cleared within 18 seconds In environ
18. s Discovery ASD 1 Product Guide 3 Wiring The following wiring connections must be made to the detector housing e 24V DC Power Supply Refer to Section 3 3 for further information This wiring enters the detector housing via cable seals and is connected to the appropriate terminals on the main circuit board or display board The terminals allow wire with a maximum diameter of 2 5mm Warning To prevent risk of electric shock or possible injury from the rotation of the high performance fan the system should be isolated from the power supply when the display board is removed Caution When installing or servicing the unit ensure that the operator is safely grounded so as to prevent electro static discharge ESD damage to the unit 3 1 Wiring Access For correct operation of the unit it is essential that the case is fully sealed so that air can only be drawn into the system through the aspirating pipe For this reason all wiring must pass through the cable seals provided and no additional holes should be made in the detector housing In order to pass a cable through a seal make a small hole in the centre of the seal with a pointed implement e g small screwdriver and then force the cable through the hole into the box The small hole should expand to accommodate any cable diameter from 4 to 10 mm 0 16 to 0 43 in If the seal is not airtight then it may be necessary to use a non reactive resin or glue to create an airtight seal in order to
19. t of the fitness or 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 Apollo Fire Detectors or its representatives Total Liability To the fullest extent permitted by law that any limitation or exclusion cannot apply the total liability of Apollo Fire Detectors in relation to the products is limited to i in the case of services the cost of having the services supplied again or li 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 Apollo Fire Detectors 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 apollo fire co uk i Discovery ASD 1 Product Guide Apollo Fire Detectors 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 docume
20. the operator is safely earthed so as to prevent electro static discharge ESD damage to the unit 7 1 Air Inlet Filter Replacement With normal use the filter element will eventually become contaminated with dust particles impeding airflow and it is recommended that the filter element order code 29600 946APO is changed every six months or as necessary In special cases where the detector is placed in extreme environmental conditions the filter should be changed every three months 1 Remove the transparent cover using the special tool provided to unscrew the tamper proof fasteners 2 Lift out the foam filter element from the filter tube using tweezers or long nosed pliers 3 Fit anew filter element ensuring that the filter is not compressed during fitting and that it is positioned flush with the top of the filter tube 4 Replace the top cover Figure 7 1 Filter Replacement 7 2 Point Detector Replacement Point detectors should be serviced in accordance with the manufacturer s recommendations To remove and replace the point detector 1 Disconnect power from the Discovery ASD 1 Loosen the four screws that secure the clear plastic cover to the housing base 3 Refer to the point detector manufacturer instructions for the correct release procedure Rotate the sensor counter clockwise to remove it from the base 4 Remove dust cover from the replacement point detector 5 Insert th
21. walls cabinet sides etc are clear of electrical wiring and plumbing h Warning Prior to drilling the attachment holes for the mounting bracket ensure that all mounting surfaces Mounting Procedure 1 O1 e W Remove the transparent cover D by using the corner stud key B to unscrew the tamper proof corner studs A Tape the mounting template to the mounting surface and use it to accurately mark the holes corresponding to the four corner fixing points Drill four holes in the mounting surface Remove the mounting template Secure the detector enclosure to the mounting surface through the four corner fixing points Use appropriate fasteners for the type of surface that the unit is mounted on The diameter of each mounting hole is 5mm Typical No 8 mounting hardware can be used in the mounting holes Legend Corner Stud Corner Stud Key Figure 2 2 Detector Enclosure www apollo fire co uk Apollo Fire Detectors Discovery ASD 1 Product Guide Dimensions 241 7mm 241 7mm 53 0mm 102 0mm ec MM WH 0000000000 Xe OHO o Go E E N to E 166 7mm Figure 2 3 Detector Enclosure Dimensions www apollo fire co uk Discovery ASD 1 Product Guide Apollo Fire Detectors This page is intentionally left blank 8 www apollo fire co uk gt gt amp Apollo Fire Detector
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