Contec LES-RACK Operation Manual And Installation Manual

Local extinguishing system

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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.

Verze 6.5.2022

Table of Contents

Summary of Contents for Contec LES-RACK

Page 1 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.
Page 2: Table Of Contents
Contents ● GENERAL INFORMATION ○ ENERAL ○ SAGE ○ ENERAL AFETY REQUIREMENTS ○ AFETY ○ ORKING CONDITIONS ○ PERATOR RESPONSIBILITY ○ SER RESPONSIBILITY ● DESCRIPTION ○ ECHNICAL PARAMETERS ○ ESIGN ○ ESCRIPTION ■ Front Panel ■ Back panel ■ Setting input/output devices ●...
Page 3 ○ ECOVERY AND DEVICE SHUT DOWN ■ Connection and disconnection of backup batteries with sensor testing ● EXTINGUISHING ● INSPECTION ○ EVICE SWITCH OFF ○ EVICE PERATION ■ General requirements ○ AINTENANCE ■ General requirements ○ SER INSPECTION ■ Weekly inspection ■...
Page 4: General Information
CONTEG spol. s r.o. company is not responsible for any damage caused to the data carriers. The extinguishing agent used in the LES-RACK device is FK 5-1-12 and fulfills EN 15004-2 requirements. FK-5-1-12 is a clean, colourless, delicate-odour liquid agent. The extinguishant is non-corrosive and non-conductive.
Page 5: General Safety Requirements
○ General Safety requirements Activation of the LES-RACK fire extinguisher can create risks for the user arising from the natural form of the fire extinguisher itself, or from decomposition products caused by contact of the fire extinguisher with fire or hot surfaces. The user of the equipment is obliged to prevent any exposure of the user to the effect of both the fire extinguisher itself and the decomposition products, especially by observing regular training.
Page 6: Working Conditions
○ Operator responsibility The operator undertakes to allow work on/with the LES-RACK active firefighting system only to persons who are familiar with the basic regulations on occupational safety and accident prevention. Who have been instructed in the handling of this device and the entire system and who have read and understood the instruction manual including the safety and warning notices contained therein.
Page 7 notices. Any questions regarding the instruction manual should be reported immediately to the appropriate authorized third party or the equipment manufacturer. NOTE: ● Unauthorized changes and modifications to the device are not permitted and void any liability of the manufacturer. ●...
Page 8: Description
● D ESCRIPTION ○ Technical parameters Table number 1 LES-RACK parameters: Value: AC supply input voltage range 100-240 VAC Frequency 50-60 Hz Current at 230V AC 0,5 A Efficiency Current at 230V AC <1mA Output voltage Un = 24 VDC...
Page 9: Description
○ Description Figure number 1 – Product desccription The fire extinguishing unit is composed of: ● The fire extinguisher tank (1) consists of a stainless steel non-pressurized rectangular storage container (1), filled with fire extinguisher (FK-5-1-12, dodecafluoro-2-methylpentan-3-one). The volume of the tank is 1.8 l, i.e. approx. 2.7 kg of fire extinguisher.
Page 10 ● Compressed nitrogen in the pressure cartridge (4) when extinguishing is started after opening the electromagnetic valve (5), the reduced pressure will be released and the fire extinguisher will be pushed out of the tank. The extinguishing agent is then directed through the open electromagnetic valve (6) and the nozzle (7) and dispersed under pressure into the protected space.
Page 11: Front Panel
■ Front Panel The device can be controlled locally using the elements on the front panel or remotely using the network connection also on the front panel. The layout of control elements and signal diodes on the front panel is shown in Fig. no. 2. All control elements and signal diodes are marked with a functional description - functional label.
Page 12: Setting Input/Output Devices
● 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 by the user. It is also possible to activate relays during testing. „TEST“...
Page 13 Figure number 6 - Switching settings and relay name Table number 2 Síť: Umax Imax / Un NOTE: 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 ->...
Page 14: Door Sensor Switch
Figure number 8 – Setttings of alarm extinguishing function ● Door sensor switch Prevents extinguishing to discharge when the door is open. Opening the door turns on the door switch and this deactivates the extinguishing. The reason is that with the door open, the extinguishing agent would not reach the required concentration inside the cabinet.
Page 15: 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 extinguishing command. It can be turned off with the "MUTE" button on the LES-RACK front panel. External sounder LED Beacon power supply is Un, maximum current 150mA...
Page 16: Manual Extinguishing Release Button
The external sounder LED Beacon does not need to be activated by software, but it is advisable to set an error message (see figure no. 11) if it is disconnected or if there is another malfunction of the siren. Figure number 11 - External Sounder LED Beacon setting The resistance values in the wiring diagram are as follows: Rp: 1K8 Ohm, 0,1 W Rectifier diode...
Page 17: External Dry Contact Sensors
Resistors are part of the delivery, only 4 pcs of each type. Figure number 14 - Wiring diagram of Manual release button ● External dry contact sensors These inputs allow remote control of the LES-RACK from other devices connected to it (extinguishing start-up/extinguishing block/connection of fire alarm systems). If the...
Page 18 connected equipment requires power supply, it should be supplied by an external source. However, in no case are these inputs intended for connecting external fire detectors, unless they have a relay output. The integrity of external sensor 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 sensors is shown in Figure no.15...
Page 19: External Temperature Monitoring Sensor
Figure Number 16 - Setting the function of the external sensor NOTE: These inputs can be used, for example, to connect door sensor switches when we want to distinguish which door sensor is open at a given moment and monitor this status with the name of the sensor, which will be visible in the log, see figure no.
Page 20: Rs485
Figure number 18 - Setting the function of the external temperature sensor ● RS485 Used to connect standard serial communication. RS-485 (as well as RS-422) is characterized by a two-wire connection of units. These wires are marked with the letters A and B. In the idle state, the voltage on wire A is lower than on wire B.
Page 21 Figure number 19 – MODBUS protocol setting...
Page 22: Web Interface Overview
● W NTERFACE VERVIEW Shows the state and network settings of the device. Default values: IP address: 192.168.1.103 Mask: 255.255.255.0 Gateway: 192.168.1.1 Login: admin Password: admin Log in (name, password) is necessary for saving the device settings. If the user does not authorise, or if the log in information is incorrect, saving button will show unavailable.
Page 23: Status Window
Fiagure number 20 - Status ● Status window: Shows state of the extinguisher level. The fire extinguisher level indicator panel is on the right. Figure number 21 – Status window example 1 Above status window shows: ● system fault signaling MAJOR in red (MINOR is in yellow) ●...
Page 24 Figure number 22 - System detail Press LED Sensor to display the assignment of fire sensors to zones 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 line The Sensors reset button is used to reset the sensors.
Page 25: Network
Above status window shows: ● FAN in work ● Battery in testing mode ● Fire extinguisher level is OK ○ Network Figure number 25 – Network setting...
Page 26 IP address: device IP-address. Gateway: must be entered even if not used. Primary and secondary DNS: in case of mail functions use. SNMP trap1, 2: IP: SNMP-server address. Port: default value is 162, can be edited, if the port is occupied. Community: SMNP trap community.
Page 27: Alarms
○ Alarms Figure number 26 – Alarm setting example Select alarm: choose the alarm you need to edit. SEP: displays status of the alarm. Zone settings: #sensors: number of simultaneously triggered sensors for extinguishing activation F. sensor1-6: checked, if the sensor belongs to the selected zone Notification settings: Text: description of the alarm to be displayed in the log and SNMP protocol Trap: status change or fault will send a trap.
Page 28 Alarm descriptions: Table number 3 Alarm Description Status 0 Status 1 Error Zone 1 Fire Zone 1 Zone 2 Fire Zone 2 Extinguishing Zone error Zone 3 Fire Zone 3 Fire sensor1 Fire sensor 1 Failure, Fire disconnected Fire sensor2 Fire sensor 2 External button External Activation button...
Page 29: Temperatures
○ Temperatures Figure number 27 - Activation and setting of the external temperature sensor Up to 2 external temperature sensors can be connected to the extinguishing module (and one Temperature1 sensor is already built in). Select thermometer: select the thermometer you want to work with. The current temperature is displayed on the right.
Page 30: Mail
To: receiving address From: sender, must be entered Subject: the subject of the message (example LES-RACK-ID0001) identification of a specific device. Log in is necessary for saving the device settings. If the user does not authorise, or if the log in information is incorrect, saving is unavailable.
Page 31: Date And Time
Figure number 29 - Setting the value of the output relays ○ Date and 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.
Page 32: Download
-| - device shut off Figure number 31 – Logs list ○ Download Figure number 32 - Download menu MIB: Management Information Base file download Logs - CSV: exporting log as a CSV file Export language: downloading language settings file, which can be edited and uploaded to the device to.
Page 33: Upload
m00=State m01=Network m02=Alarms m03=Temperatures m04=Mail m05=Outputs m06=Date &Time m07=Logs m08=Download m09=Upload t00=STATUS: Connection lost t00=Status: OK t00=System alarms t00=Upload t01=ERROR: File error, try again. t02=STATUS: File saved. t03=File: b00=Save b01=Backup b02=Restore b03=Reset // alarm description (max. 29 characters) i00=Sensor i01=Button i02=Door …...
Page 34: Modbus Rtu
Figure number 33 - Upload Backup: saving the device configuration for backup. Restore: restoring the device from the backup file. Reset: resetting the device. Choose file…: import the language settings file. Save: saving language settings. ○ MODBUS RTU RS485 parameters: Baud rate –...
Page 35 LED Beacon Battery Disconnected Connected Failure External sensor 1 Active Failure External sensor 2 Active Failure External sensor 3 Active Failure Gas Valve Closed Open Failure Extinguishant Valve Closed Open Failure Extinguishant level Failure Power Supply230V Outage Power Supply 24 V Battery test Failure Power Supply 12 V...
Page 36: Installation And Commissioning
NSTALLATION AND COMMISSIONING ○ Short description LES-RACK is designed closed spaces of volume not exceeding 2 m3. The device cannot be exposed to aggressive substances, direct sunlight, risk of mechanical damage and working conditions outside of described in this manual. Before installing the device please be sure to familiarise yourself with local fire protection and safety norms.
Page 37: Delivered Product Consists Of Following Parts
If this temperature has been exceeded, but the water level is fine, we recommend an optical inspection of the LES-RACK device to see if the...
Page 38 The remaining two holes are used to attach the LES-RACK after it is inserted into the guide rail and pushed against the face of the 19th. rack...
Page 39 The device is installed in the upper part of the cabinet with a minimum distance of 20 cm between the lower part of the LES-RACK device and the nearest device below, as shown on the Figure no. 37. It is necessary that space 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.
Page 40: General Assembly Steps
■ General assembly steps ● Unpacking from the shipping box. ● Checking the temperature label on the back of the LES-RACK device, whether the limit temperature has not been exceeded during transport. ● Fastening guide rails in the cabinet in a horizontal position and securing them properly with screws.
Page 41: Signaling Of Error-Free And Error States
■ Signaling of error-free and error states Table number 5 – Local signaling LED diode: Indication: Meaning: color state: TEST System ready. Standard operating state. System in testing mode. MUTE Alarm active and ready. Alarm inactive or disconnected during the extinguishing SYSTEM READY System disconnected from power, inactive System OK.
Page 42: Recovery And Device Shut Down
NOTE: For a more detailed display of the error, you can use the web interface in the STATUS menu and click on the System indicator. Figure number 38 – Indicator of temperature limit exceeded ○ Recovery and device shut down ■...
Page 43 EXTINGU ISHING After 3 seconds, an extinguishing command EXTINGU accompanied by an acoustic signal will occur. The ISHING sound signal can be turned off with the "MUTE" button. After extinguishing, the smoke detector remains activated and must be deactivated with the "RESET"...
Page 44: Extinguishing
● E XTINGUISHING After inserting the device into the 19" frame, testing it and with the battery connected, the device is ready for normal operation. Table number. 7 Activity: Function: Signal LED diode color status Activation The signal to start "Extinguishing" can happen in several ways, namely through: - the LES Rack 3 internal sensors EXTINGUI...
Page 45: Inspection
It is appropriate to prohibit or control the entry of unauthorized persons into the premises where the LES-RACK device is installed. ○ Maintenance ■...
Page 46: User Inspection
Consistent adherence to the inspection and maintenance schedule will lead to detection of LES-RACK equipment defects at an early stage. It will make it possible to carry out corrections before it is necessary for the device to intervene automatically, or it will ensure faultless operation in the event of a fire.
Page 47: Service Provider Inspection
maximum temperature for operation (temperature label on the back of the device - Installation of the device). If it is found that there have been changes in the volume or type of risk in the protected area, a new fire protection solution must be developed to provide the original level of protection. It is recommended to regularly check the level of the fire extinguisher using the Status interface.
Page 48 ▪ All electrical detection and alarm systems are tested as recommended by the relevant national standards. ▪ All control valves are checked to see if they work correctly for manual operation and then whether they work correctly for automatic operation. ▪...
Page 49: Installation And Commissioning Checklist
○ Installation and commissioning checklist The temperature indicator has not exceeded the permitted limit The device was inserted horizontally (checked with a level meter) The power cord is plugged into the power port AC power cord (12) The temperature cable is inserted into the RJ11 port The device is undamaged and shows no defects from improper handling The nozzle is pointing downwards and shows no signs of damage On the signaling panel - SYSTEM READY lights up intermittently in green...
Page 50: Problem Solving
● P ROBLEM SOLVING If the active FAULT: SYSTEM warning light comes on, find out the detailed cause of the problem through the web interface. In the web interface of the Status menu, click on the System signaling wheel for information about the error. Error: Root cause: Solution...
Page 51 button. If the solution does not help, contact the supplier/manufacturer. FAULT: SENSOR Malfunction of at least one RESET the device via the web sensor – extinguishing light flashes yellow interface, in the Status menu and red works click the Sensors signaling wheel, then the Reset sensors button.
Page 52 BATTERY light is Battery test in progress Wait until the battery test is yellow finished. If the batteries are connected by software, the light is green. FAN light is red Fan failure, the fan does not Fault reset - "RESET" button. If spin.
Page 53: Shop
● SHOP ○ External parts SONOS Sounder LED Beacon - order code: LES-FRS3COM0104 Manufacturer: KLAXON Red body, red lens 106 dB, 32 tones 17-60V DC, 10-50 mA Shallow base EN 54-3 Manual release extinguishing button - order code: LES-FRS3COM0105 Manufacturer: Bosch Conventional manual release button Color yellow Double acting with detent...
Page 54: Accessories
Notice: The author of this document, CONTEG spol. s r.o. claims the right to change the content without prior 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.