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Verze 6.5.2022 

 
 

LES-RACK Local Extinguishing System 

Operation Manual and Installation Guide 

 

 

 

 
 
 
 

 

 

 
 

Product name: 

LES RACK 

This manual serves as a product documentation for installation and commissioning of the 

LES-RACK

, supplied by 

CONTEG spol. s r.o.

 

This device is only to be used according to 

the instructions and under the operational conditions described in this manual. It is advised to 
read it thoroughly and keep it at one’s disposal.  

 

Содержание LES-RACK

Страница 1: ...his manual serves as a product documentation for installation and commissioning of the LES RACK supplied by CONTEG spol s r o This device is only to be used according to the instructions and under the...

Страница 2: ...D Beacon 15 Manual extinguishing release button 16 External dry contact sensors 17 External temperature monitoring sensor 19 RS485 20 WEB INTERFACE OVERVIEW 22 MENU 22 STATUS 22 Status window 23 NETWO...

Страница 3: ...neral requirements 45 MAINTENANCE 45 General requirements 45 USER INSPECTION 46 Weekly inspection 46 Monthly inspection 46 SERVICE PROVIDER INSPECTION 47 Annual service inspection 47 2 year service in...

Страница 4: ...redundant connection in such a way that false alarms and errors in the so called two sensor dependency are excluded The lifespan of the device excluding the back up battery extinguishing agent and pre...

Страница 5: ...a device nozzle at high velocity can flow with sufficient force to move physical objects in or near its path Discharged extinguishing agent may cause currents in the protected space sufficient to set...

Страница 6: ...hrough the safety pressure valve This is a consequence of the high temperature of the fire extinguisher in the tank during which a gradual change of state from liquid to gas can occur The result is an...

Страница 7: ...anufacturer NOTE Unauthorized changes and modifications to the device are not permitted and void any liability of the manufacturer Use only original spare parts We reserve the right to make changes in...

Страница 8: ...ng of the device is made of steel sheet metal The extinguishant container and the piping are made of stainless steel and other non corrosive materials All materials have been tested and correspond wit...

Страница 9: ...1 8 l i e approx 2 7 kg of fire extinguisher The level gauge 2 is used to continuously check the amount of fire extinguisher in the tank When the level drops below the set limit the System fault signa...

Страница 10: ...m of 4 hours however the time is not guaranteed throughout the life of the device due to the decreasing life of the batteries More in the category Connecting and disconnecting backup batteries The AC...

Страница 11: ...ront panel Back panel On the back panel the input output terminal block is equipped with 4 relays for controlling external devices connectors for connecting signals from external safety elements and c...

Страница 12: ...the web interface chapter Relay outputs The LES RACK is equipped with 4 SPDT relay outputs one of which is DPDT switch Double Pole Double Throw Switch Separate activation of the relay can be set up b...

Страница 13: ...TE These outputs can be used for example to connect a GSM module where one of the outputs will be switched on in the event of a fault Alarms Select alarm 22 Minor 23 Major and the other in the event o...

Страница 14: ...of the contact circuit is constantly monitored The wiring diagram for the door contact is shown in Figure no 10 When the extinguishing is blocked the EXTINGUISHING indicator on the front panel lights...

Страница 15: ...am of door sensor switch External Sounder LED Beacon It is used for acoustic signaling in other remote areas than the guarded area The external sounder LED Beacon is activated simultaneously with the...

Страница 16: ...e as follows Rp 1K8 Ohm 0 1 W Rectifier diode Figure number 12 Wiring diagram of External Sounder LED Beacon Manual extinguishing release button Allows to initiate extinguishing remotely and manually...

Страница 17: ...nce values in the diagram are as follows Rp 1K8 Ohm 0 1 W Rs 470 Ohm 0 1 W Resistors are part of the delivery only 4 pcs of each type Figure number 14 Wiring diagram of Manual release button External...

Страница 18: ...circuits is also continuously monitored If several external sensors are connected in parallel the circuit must also be terminated with a terminating resistor Wiring diagram of External dry contact sen...

Страница 19: ...function Alarms Select alarm 6 Sensor1 3 External temperature monitoring sensor The installation is carried out in the protected space in which the temperature needs to be monitored The temperature se...

Страница 20: ...inversely proportional to the length of the line The transmission speed for short connections up to 10 m can be up to 10 Mb s When communicating over longer distances the line must be terminated on b...

Страница 21: ...21 Figure number 19 MODBUS protocol setting...

Страница 22: ...ted WARNING Older versions of the browser may display the web interface incorrectly Menu Status status window Network network setting Alarms alarm setting and input output components Temperature tempe...

Страница 23: ...example 1 Above status window shows system fault signaling MAJOR in red MINOR is in yellow The battery flashing green is physically connected but not software connected FAN is OK Fire extinguisher lev...

Страница 24: ...s and their status Figure number 23 Fire detector status window sensor OK sensor is active faulty sensor sensor power supply is off reset is being performed sensor power supply is off indicating short...

Страница 25: ...25 Above status window shows FAN in work Battery in testing mode Fire extinguisher level is OK Network Figure number 25 Network setting...

Страница 26: ...0 will be activated simultaneously if a fire is detected by any of them Same works with testing muting and resetting after the extinguishing The devices should be in the same network segment For other...

Страница 27: ...email Error Major fault will be displayed as major system fault Error Minor fault will be displayed as minor system fault State Major change of state will be displayed as major system fault State Mino...

Страница 28: ...External sensor 3 Valve 1 Solenoid Valve propellant gas Closed Open Failure disconnected Valve 2 Solenoid valve extinguishant Closed Open Failure disconnected Extinguishant level Level sensor Normal...

Страница 29: ...t temperature is displayed on the right displays all temperatures in one status window Active the sensor is connected it must be selected if we want it to be functional Relation relation between the m...

Страница 30: ...thorise or if the log in information is incorrect saving is unavailable To log in again close the web interface and repeat authorisation NOTE Authorisation data transfer is not encrypted WARNING Older...

Страница 31: ...Time Figure number 30 Date and Time setting NTP server NTP server Timezone Time zone selection Logs The event history is stored in the log sorted by newest alarm state change relay state change change...

Страница 32: ...ettings file which can be edited and uploaded to the device to Only parts of the file following should be edited Commentary following is only shown here it is not a part of the language settings file...

Страница 33: ...t00 System alarms G14 t00 Upload t01 ERROR File error try again t02 STATUS File saved t03 File b00 Save b01 Backup b02 Restore b03 Reset I29 alarm description max 29 characters i00 Sensor i01 Button...

Страница 34: ...t 8 bits Stop Bit 1 Parity None ModBus parameters ID defined by user Fucntion codes 1 4 5 Function 4 read coils Table number 4 Alarm Reg State 0 State 1 Reg Error 1 Zone 1 0 OK Extinguishing 50 Failur...

Страница 35: ...e exceeded set limit 74 Failure Temperature 2 external 25 OK Temperature exceeded set limit 75 Failure Temperature 3 external 26 OK Temperature exceeded set limit 76 Failure Fan 27 Idle OK 77 Failure...

Страница 36: ...LES RACK can be connected to such systems to switch off the ventilation during the extinguishing Figure number 34 Protected area Safety EN 50110 1 applies concerning protection from the electric curre...

Страница 37: ...the protected area 2 Inspection of mechanical components 3 Checking the integrity of the protected area After removing the product from the packaging the temperature label must be checked to see if th...

Страница 38: ...space at least two people should carry out the assembly LES RACK can then be connected together with any other external component connectors before or after inserting it into the guide rails and then...

Страница 39: ...pace be ensured under the nozzle and under the perforated part from the bottom of the device where the sensors are stored and that it is not shaded and its proper function is not prevented The space i...

Страница 40: ...security peripherals manual release button external sounder LED Beacon and their Software activation using the web interface Activate the back up battery with a thin pin by pressing the microswitch sm...

Страница 41: ...SOR R S Extinguishing has been initiated R B At least one sensor has been activated Y S At least one sensor is faulty unable to extinguish Y R B At least one sensor faulty able to extinguish Y B At le...

Страница 42: ...EM READY G B The battery is not physically connected inside the cabinet battery is missing or has insufficient capacity BATTERY R B The battery is physically connected electrically disconnected BATTER...

Страница 43: ...G SYSTEM READY BATTERY G G B S If we deactivated the siren with the MUTE button it is necessary to press the MUTE button again to turn on the siren The MUTE indicator will go out MUTE Y S D E V I C E...

Страница 44: ...uishing is started The selected output relays will be switched Extinguishing is accompanied by an acoustic signal The sound signal can be turned off with the MUTE button Pressing MUTE turns off the in...

Страница 45: ...k of electric shock after opening the cover of the device The user of the equipment is obliged to designate and have trained the persons responsible for the operation of the equipment persons authoriz...

Страница 46: ...zn za zen a sou sti syst mu jsou dn um st ny a nepo kozeny Visual assessment of the protected area to identify potential risks or needs for device mounting adjustments which could reduce the efficienc...

Страница 47: ...re system looking mainly at the detection pressure and discharge parts of the device A visual and physical inspection will be carried out incl functionality of the mentioned circuits At the same time...

Страница 48: ...rectly for automatic operation Checking the surface of the device for signs of damage or unauthorized intervention Control of the quality and parameters of the fire extinguisher according to valid sta...

Страница 49: ...n of resistors software set notifications in case of fault Manual release extinguishing button physically connected to the device with the correct connection of resistors software set to activate exti...

Страница 50: ...or at least 12 hours TEST light is blue The device is in test mode To turn off the mode press the Test button MUTE light is yellow The device s audio elements are muted To turn off the mute press the...

Страница 51: ...ace of the Status menu click on the System signaling wheel for error details FAULT SYSTEM light is yellow A minor error that does not prevent active extinguishing In the web interface of the Status me...

Страница 52: ...upplier manufacturer Service is required FAN light is organge Insufficient fan speed reduced power Fault reset RESET button If the solution does not help contact the supplier manufacturer Service is r...

Страница 53: ...e EN 54 3 Manual release extinguishing button order code LES FRS3COM0105 Manufacturer Bosch Conventional manual release button Color yellow Double acting with detent EN 12094 IP52 Door sensor switch o...

Страница 54: ...or notice due to the constant development of the LES RACK device and possible changes in technology user interface etc it is therefore necessary to follow the version of the document i e date with dat...

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