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Chapter 6   •  Safety devices

User Manual Series F-BO-AFE70

Safety devices

By installing the Automatic Purging Unit F-BO-AFE70 in the customer's pipe network, and 
through the connection to the other components also provided by the customer, namely the aspirat-
ing smoke detector, the fire detection control panel, the electrical power supply as well as the com-
pressed-air supply, a machine in the sense of the Directive 2006/42/EC is created.

Therefore the adherence to this directive must be ensured during the whole installation; therefore 
corresponding measures have to be taken which depend on the system construction, the installed 
components as well as the use of the building, and which can also exceed the minimum require-
ments listed below. Therefore a corresponding danger evaluation is required in any case.

The following basic minimum requirements must always be fulfilled in any case and at any time:

A protection against contact with the movable valve piston of the Purging unit must be in place; 
this requirement is fulfilled if both 25mm push-in fittings have been installed as described in 
Chapter 5.1: „Final assembly“ and suitable pipes of the customer's pipe system have been inser-
ted in such a way that it is not possible to enter and touch the valve piston without a tool, also 
compare Chapter 8.2: „Connection to the sampling pipe and to the aspirating smoke detector“.

The possibility that the compressed air that is introduced into the pipe system during the Pur-
ging process can eject parts which can cause injuries or damage to property, must have been 
prevented altogether. This can be done, for example, by altogether preventing such parts from 
entering the compressed-air system or the piping, or by making sure that at the time of the Pur-
ging process nobody can stay in the danger zone, or by implementing other suitable protective 
measures (e.g., deflectors) in the system.

All parts that will be pressurised during operation (for example, pipes, fittings, valves, hoses, 
pressure regulators and filters) must have been approved for the application of compressed air 
within the pressure range that is to be expected.

A device must be installed by means of which the system can be easily shut down both in the 
event of an emergency as well as during normal operation. This is ensured, for example, if the 
compressed-air supply to the Automatic Purging Unit F-BO-AFE70 can be interrupted easily 
and quickly by means of a hand-actuated pneumatic valve. This valve must be freely accessible 
and has to be appropriately labelled or signposted with „EMERGENCY STOP“.

If, in spite of all the safety precautions and protective measures that have been taken, unavoidable 
risks still exist, the necessary warnings and warning devices have to be put up.

A failure to meet the requirements described here can have serious consequences for life, 
limb and property; therefore make sure that all required devices are in place and function 
flawlessly.

I56-4252-010

D200-104-00

22

Содержание F-BO-AFE70 Series

Страница 1: ...OLOGY Automatic Purging Units for Aspirating Detectors F BO AFE70 Description Installation Connection Commissioning Maintenance SYSTEM SENSOR EUROPE Pittway Tecnologica S r l Via Caboto 19 3 34147 TRIESTE Italy www systemsensoreurope com ...

Страница 2: ......

Страница 3: ...O AFE70 is closed with high velocity and great force As a result parts of the body or objects which are in the valve body can be seriously injured or even severed or destroyed respectively In addition the Purging unit can be severely damaged or destroyed as a result Only expert service specialists and trained employees are allowed to plan install modify main tain and service a fire detection syste...

Страница 4: ...vely and are designed and manufactured in accordance with the engineering practice of a Member State The CE labelling results from a guideline from the board of the European Community for the equi valency of the laws of its member states including the mutual approval of laws By means of the CE label that is affixed to the device the manufacturer confirms the conformity of the product with the foll...

Страница 5: ...ipe and to the aspirating smoke detector 25 8 2 1 Loosening the pipe connection 26 8 2 2 Use of filters 26 8 2 3 Use of check valves 27 8 2 4 Connection diagram for a double pipe system 27 8 2 5 Connection diagram for far flung pipe systems with master slave mode of the Purging units 28 8 3 Connection of the compressed air 29 9 Connection and parameterisation 30 9 1 General instructions 30 9 2 Pow...

Страница 6: ...ice number 38 9 6 Label showing the parameterisation options and connection possibilities 39 10 Commissioning and function test 40 11 Inspection 42 12 Specifications 43 13 Set parameters 45 14 Appendix A 46 14 1 EU declaration of conformity 46 14 2 Supplier s declaration of conformity 47 I56 4252 010 D200 104 00 6 ...

Страница 7: ...ommon they essentially differ in the built in solenoid valves which allow different air flow rates and or extended operating temperatures The Automatic Purging Unit F BO AFE70 2 with a typical air flow rate of the solenoid valve of approx 3 500 l min ANR at 0 7MPa 7bar is designed both for small as well as for larger pipe systems with a large number of aspiration holes Thanks to the solenoid valve...

Страница 8: ...tive air humidity of 65 In this User Manual the term aspirating smoke detector which is also abbreviated as ASD refers both to the actual evaluation unit of an ASD as well as sometimes also to the combination of the essential components of which an ASD consists namely the evaluation unit the ASD the sampling pipe system and sometimes the compressed air supply etc In the context it is always clear ...

Страница 9: ...mbling the equipment The delivery scope of the Automatic Purging Unit F BO AFE70 includes the valve block with flange mounted solenoid valve that has been mounted on the bottom plate and has been completely assembled and tested including the mounted control board AFS70 1 with protection cover i e the housing and cover two 25mm push in fittings for the connection to the sampling pipe two pipe nippl...

Страница 10: ...s the filter If this is not possible for example because the filter case is not pressure resistant the filter must be located between the Purging unit and the aspir ating smoke detector J Check valve 2 1 General Aspirating smoke detectors use a low negative pressure to continuously sample air through aspira tion holes of a sampling pipe that is laid in a room or building and direct the air samples...

Страница 11: ...influences such as temperat ure humidity and air that is polluted by gases and aerosols which can cause increased need for maintenance and reduce the life span due to wear and tear or contamination The following features distinguish the Automatic Purging Unit F BO AFE70 6 Purging programs each with short or long Purging cycle they can be manually controlled by means of an external push button inte...

Страница 12: ...is in normal operation Removal Not necessary illuminates green Condition No valid Purging program selected Response time Immediately Effect The componentry is all right however it will not carry out an automatic Purging process HINT Switch position 0 allows you to set the time switch position F allows you to set the device number Removal Select a valid Purging program G flashing green G R G R G R ...

Страница 13: ...s and terminals on the control board of the Automatic Purging Unit F BO AFE70 If there is another fault it must be removed on the aspirating smoke detector If there is no fault of the aspirating smoke detector the connection line must be checked for freedom from faults illuminates yellow Table 2 Possible conditions of the componentry status display 3 2 Operation by the user If a valid Purging prog...

Страница 14: ...35 26 2 80 6 16 4 80 18 10 6 80 36 32 2 90 6 61 4 90 18 86 6 90 37 40 3 00 7 07 5 00 19 64 7 00 38 49 3 10 7 55 5 10 20 43 7 10 39 60 3 20 8 05 5 20 21 24 7 20 40 72 3 30 8 56 5 30 22 07 7 30 41 86 3 40 9 08 5 40 22 91 7 40 43 01 3 50 9 63 5 50 23 76 7 50 44 18 3 60 10 18 5 60 24 64 7 60 45 37 3 70 10 76 5 70 25 52 7 70 46 57 3 80 11 35 5 80 26 43 7 80 47 79 3 90 11 95 5 90 27 34 7 90 49 02 Diamet...

Страница 15: ...7bar AFE70 3 5000L AFE70 3 5000L AFE70 3 5000L AFE70 3 5000L AFE70 3 5000L AFE70 3 5000L AFE70 3 5000L 0 60MPa 6bar AFE70 3 5000L AFE70 3 5000L AFE70 3 5000L AFE70 3 5000L AFE70 3 5000L 0 50MPa 5bar AFE70 3 5000L AFE70 3 5000L AFE70 3 5000L AFE70 3 5000L 0 40MPa 4bar AFE70 3 5000L AFE70 3 5000L AFE70 3 5000L 0 30MPa 3bar AFE70 3 5000L AFE70 3 5000L gesamte Öffnungsfläche total aperture area Table ...

Страница 16: ...supply of the Purging unit because usually the time between two Purging processes is very long and therefore the compressor has sufficient time for charging the com pressed air vessel Therefore only the dimensioning of the compressed air vessel is dealt with below Fig 3 Typical construction of a compressed air system for providing the required compressed air volume of an Automatic Purging Unit Ser...

Страница 17: ... and the avail able air vessel overpressure For the required total vessel volume you have to multiply the determ ined size by the solenoid valve s planned total opening time during the Purging process An example should explain the approach For your system you need an F BO AFE70 2 with an input overpressure of at least 0 5MPa 5 bar Furthermore your planned air vessel overpressure of the compressor ...

Страница 18: ...ng Unit F BO AFE70 2 The values are given in litres per second of operation of the solenoid valve 1 7 2 5 4 1 6 3 8 8 12 5 17 7 25 0 37 8 62 5 1 8 2 8 4 6 7 1 10 3 15 0 22 1 33 3 56 7 125 0 2 0 3 1 5 2 8 3 12 3 18 8 29 4 50 0 113 3 2 3 3 6 6 1 10 0 15 4 25 0 44 2 100 0 2 6 4 2 7 3 12 5 20 6 37 5 88 3 3 1 5 0 9 2 16 7 30 8 75 0 3 7 6 3 12 2 25 0 61 7 4 6 8 3 18 3 50 0 6 1 12 5 36 7 9 2 25 0 18 3 Ke...

Страница 19: ...et by hand into one of the two fitting threads of the Purging unit s body as far as it will go Use a wrench of the right size wrench size 32mm to turn the 25mm push in fitting by approxim ately another 30 until it seats tightly and seals perfectly Repeat the procedure described above for the other side of the Purging unit Cover the openings of the 25mm push in fittings with the protective covers a...

Страница 20: ...Unit F BO AFE70 with cover taken off Left Automatic Purging Unit F BO AFE70 3 without cover Right Cover that has been removed from the Purging unit A Valve block B Compressed air connection C Piping to the aspirating smoke detector D Control board AFS70 1 E Cover of the Purging unit F Opening for the cable entry G Button TA1 I56 4252 010 D200 104 00 20 ...

Страница 21: ...Automatic Purging Unit F BO AFE70 A Front view B View from below C View from the left side D Piping to the monitored area E Piping to the aspirating smoke detector F Position of the opening for the cable entry G Compressed air connection F BO AFE70 2 H Compressed air connection F BO AFE70 3 I Status LED I56 4252 010 D200 104 00 21 ...

Страница 22: ... The possibility that the compressed air that is introduced into the pipe system during the Pur ging process can eject parts which can cause injuries or damage to property must have been prevented altogether This can be done for example by altogether preventing such parts from entering the compressed air system or the piping or by making sure that at the time of the Pur ging process nobody can sta...

Страница 23: ...the two protective covers of the 25mm push in fittings be removed if they have been installed Take care that contaminants or foreign objects can not get into the push in fittings After acclimatisation to the final ambient temperature the two 25mm push in fittings have to be checked for tight seat and if necessary they have to be tightened up Only after that is the Purging unit to be electrically c...

Страница 24: ...k your supplier or the manu facturer about it Bear in mind that the life span of the components may be reduced by high temperature and humidity Therefore it is recommended to install the Purging unit in an environment with a nor mal indoor climate i e up to a maximum of 40 C if it is possible The pipe connection between the Automatic Purging Unit F BO AFE70 and the evaluation unit of the aspiratin...

Страница 25: ... Purging Units F BO AFE70 are delivered with two 25mm push in fittings which have to be installed as described in Chapter 5 1 Using other fittings or other components instead of the supplied 25mm push in fittings can lead to severe injuries or damage and therefore has to be refrained from The connection between the Purging unit and the sampling pipe must be airtight and pressure res istant the con...

Страница 26: ...force on the hexagon surface of the push in fitting wrench size 32mm as well as a suitable open end wrench or if necessary a suitable pair of pliers for unscrewing the push in fitting via the octagon surface wrench size 35mm It is not necessary to disassemble the push in fitting it only has to be unscrewed as far as necessary to easily pull out the pipe by hand When unscrewing the connection also ...

Страница 27: ...mponents needed for purging two separate pipe systems of an aspirating smoke detector Fig 8 Aspirating smoke detector with two separate pipe systems As a supplement to Fig 2 page 10 electrical connection cables are not shown here in order to provide a clearer overview A Aspirating smoke detector with two separate pipe systems B F BO AFE70 for the first pipe system C Filter before the Purging unit ...

Страница 28: ... the electrical connection cables are not shown here in order to provide a clearer overview however the logical sequence of the Purging process has been drawn in with red dotted arrows A Aspirating smoke detector with pipe networks in double U design B F BO AFE70 master for the first U pipe network C F BO AFE70 slave for the second U pipe network D Filter for the entire pipe network Since most asp...

Страница 29: ...age 43 onwards in Chapter 12 Specifications If the used compressed air supply can exceed the permissible pressure a pressure regulator must be used This pressure regulator must be constructed in such a way that it does not limit the air flow rate in an inadmissible way The maximum permissible positive operating pressure as well as the recommended air flow rate for the Purging unit that you are usi...

Страница 30: ...mmet for the connection to the solenoid valve already connected at the factory You have to thread the cables through the two cable grommets in order to connect them to the con trol board In the Purging unit the laid cables must be pull relieved On the bottom plate there is a deep drawn loop that is intended for pull relieving the inserted cables see Fig 10 above by fasten ing them to this loop usi...

Страница 31: ... Unit F BO AFE70 The field with the dotted border is a label on which the version of the used firmware PL200 Vx yy has been printed 9 4 Connection of and interaction between Purging unit aspirating smoke detector and fire detection control panel Perform the connection in accordance with Figure 12 or 13 below The connections that are needed for the respective function are represented by solid lines...

Страница 32: ...FDCP can also be reset auto matically Therefore a preceding fault transmission can be followed by an automatic confirmation clear mes sage fault removed So a Purging process is logged in the event memory of the FDCP If the clogging has not been removed by the Purging process the aspirating smoke detector will remain in the fault condition beyond the observation period and after expiry of the obser...

Страница 33: ...e to the fire detection control panel observe the connection conditions for the fire detection control panel used E Actuation output on the fire detection control panel observe the connection conditions for the fire detection control panel used This output is used to start the Purging processes if the ASD experiences a fault Manual Purging activations can be carried out by manipulating operating d...

Страница 34: ...t should be actuated via the Slave activ output of the respective preceding slave unit In order to prevent the slave units from carrying out autonomous Purging processes the slave units must be set to Purging program 6 and the end of line resistor REOL AFE must be connected to the fault input The fault outputs of the master unit and of all slave units must be connected in series the end of line re...

Страница 35: ...tection control panel observe the connection conditions for the fire detection control panel used This output is used to start the Purging processes if the ASD experiences a fault Manual Purging activations can be carried out by manipulating operating devices that are intended for this purpose provided that this feature has been prepared by the installer of the system F In addition the fault outpu...

Страница 36: ...a day at 09 00 and 14 00 and in case of a fault always with long Purging process 3 Three times a day at 06 00 12 00 and 18 00 and in case of a fault always with long Pur ging process 4 Four times a day at 5 00 10 00 15 00 and 20 00 and in case of a fault always with long Purging process 5 Six times a day at 4 00 8 00 12 00 16 00 20 00 and 00 00 and in case of a fault always with long Purging proce...

Страница 37: ...nate the process by exiting position 0 of the rotary switch Purging program SW1 Since the clock can only be set to a full hour it is recommended that it should always be set at the full hour You start the entry by pressing TA1 for at least 2 seconds When the status LED lights up release TA1 and start entering the hours within 4 seconds if the hours value has two digits 10 24 start with the tens di...

Страница 38: ...a common compressed air system a staggered operation helps to avoid overstressing of the compressed air supply For this purpose the Purging units can be programmed with a device number between 0 and 32 The factory setting of the devices is no 0 By increasing the device number by 1 the Purging pro cess of the respective Purging unit is delayed by 2 minutes so that only one Purging unit consumes com...

Страница 39: ...howing the possible Purging programs as well as the terminals is visible after removing the cover of the Purging unit This label serves as support for the connection and parameterisation carried out by the expert installer and under no circumstances does it replace this User Manual Fig 16 Label showing the possible Purging programs the location of the display and operating elements and the locatio...

Страница 40: ...egrated into the Automatic Purging Unit F BO AFE70 is closed with high velocity and great force As a result parts of the body or objects which are in the valve body can be seriously injured or even severed or destroyed respectively In addition the Purging unit can be severely damaged or destroyed as a result Integration into the pipe network Has the Purging unit been integrated into the pipe netwo...

Страница 41: ... according to the information provided by its manu facturer Parameterisation On the Purging unit set the time the device number if applicable as well as the Purging pro gram Does the status LED of the Purging unit illuminate green Carrying out the Purging process Turn on the compressed air supply to the Purging unit slowly so that the pressure can build up slowly Simulate a fault of the aspirating...

Страница 42: ...etector are enough When the Purging process is started a shock which can be felt with the hand and which is clearly audible without any aid must be perceptible This indicates that the piston has opened completely the air flow to the aspirating smoke detector has been interrupted and the com pressed air is being introduced into the pipe network The piston is in the Purging position In this state th...

Страница 43: ... per year Supply voltage Normal operation 21 6 30 0VDC Solenoid valve continuously energised 21 6 26 4VDC Current consumption at 24V F BO AFE70 2 8mA normal condition solenoid valve de energised 300mA solenoid valve energised F BO AFE70 3 8mA normal condition solenoid valve de energised 370mA solenoid valve energised Minimum output current of the power unit 1 5A Connection type pluggable screw ter...

Страница 44: ... 6MPa typ 3 200 l min ANR 0 7MPa typ 3 700 l min ANR Compressed air characteristics F BO AFE70 3 ANR means at 0 1MPa 1bar 20 C 65 relative humid ity Compressed air connection G3 8 female thread with 90 degree push in fitting screwed on for hose with outer diameter of 10mm Permissible input overpressure 0 03 1 20MPa 0 3 12 0bar Recommended input overpressure 0 20 1 20MPa 2 0 12 0bar Flow rate solen...

Страница 45: ...esses are only started by a push button or if the Purging unit operates as slave 7 Once a day at 10 00 and in case of a fault always with short Purging process 8 Twice a day at 09 00 and 14 00 and in case of a fault always with short Purging process 9 Three times a day at 06 00 12 00 and 18 00 and in case of a fault always with short Purging process A Four times a day at 5 00 10 00 15 00 and 20 00...

Страница 46: ...Chapter 14 Appendix A User Manual Series F BO AFE70 14 Appendix A 14 1 EU declaration of conformity Fig 17 EU declaration of conformity I56 4252 010 D200 104 00 46 ...

Страница 47: ...User Manual Series F BO AFE70 Chapter 14 Appendix A 14 2 Supplier s declaration of conformity Fig 18 Supplier s declaration of conformity page 1 of 2 I56 4252 010 D200 104 00 47 ...

Страница 48: ...Chapter 14 Appendix A User Manual Series F BO AFE70 Fig 19 Supplier s declaration of conformity page 2 of 2 I56 4252 010 D200 104 00 48 ...

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