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FIRElink-25 Air Sampling System INSTALLATION MANUAL...
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Hochiki Europe (UK) Limited reserves the right to alter the specifications of its products from time to time without notice. Although every effort has been made to ensure the accuracy of the information contained in this document it is not warranted or represented by Hochiki Europe (UK) Limited to be a complete and up-to-date description.
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Signal Connections ......................25 Final installation ........................26 Interfacing .............................28 Setting the Detector Address....................28 Connecting a FIRElink-25 to a SenseNET/RS485 Detector Network........29 Connecting a FIRElink-25 to an addressable Fire Panel ............29 Connecting to a PC .......................31 Event Log ............................32 Commissioning..........................34 Commissioning Checklist ......................34 Maintenance..........................35...
FIRElink-25 – Installation Manual Page 5 of 40 Introduction FIRElink-25 is a highly sophisticated ‘next generation‘ of High Sensitivity Aspirating Smoke Detection product that has been designed to ensure that installation and commissioning is as simple as possible, while optimising performance.
Suitable anti-static precautions must be taken when handling the board. Hochiki Europe (UK) Limited has taken every care to ensure that FIRElink-25 is as simple to install as possible but in case of difficulty, please contact our Product Support Department to ensure trouble free installation and operation.
Programming the Detector The FIRElink-25 may be programmed from a PC when connected to the detector via a standard 9-pin serial lead connected to the serial port of the computer and the 9 way socket at the base of the detector (see section 7.4, ‘Connecting to a PC’).
5 seconds. 2.2.3 ClassiFire® Override This function has no current use on the FIRElink-25 but is reserved for future expansion purposes. 2.2.4 Alarm Factor The detector sensitivity is set with this entry, which will also affect the probability of nuisance alarms. 0 = high sensitivity, higher probability, 8 = low sensitivity, lower probability.
If the detector is in FastLearn mode, unticking this box will stop the FastLearn process. Using the function in this way is neither recommended nor supported by Hochiki Europe (UK) Limited. Ticking the box will start a FastLearn at any time. The green “OK” LED on the front of the detector will flash for the fifteen minutes that it takes for the FastLearn process, and will then change to constant illumination to indicate that the FastLearn is complete.
2.4 Alarm Actions Tab 2.4.1 Remote Functions (Remote Input subgroup) These functions have no current use on the FIRElink-25 but are reserved for future expansion purposes. 2.4.2 Programmed Isolate When this function is ticked the controller will not generate alarms and will not indicate a fault condition on any fire panel which is connected, e.g.
The details of each problem can be found in the event log. See section 6, “Event Log” for further details. 2.5.5 Device Text This function has no current use on the FIRElink-25 but is reserved for future expansion purposes. 2.6 Referencing Tab 2.6.1 Reference Detector A FIRElink detector may use another detector as a fresh air reference.
This feature requires the Remote Control Software version 3.2 or later, available from the Hochiki Europe Technical Support Department (psupport@hochikieurope.com). The default flow fault thresholds on the FIRElink-25 are set to meet the stringent airflow monitoring requirements of EN54-20, with a default flow fault delay of 30 seconds. This may lead to unwanted flow faults being generated when local conditions cause short-term variations in airflow.
FIRElink-25 is supplied with a ‘Piped Exhaust’ type Docking Station (see illustration A). This is primarily intended to allow the FIRElink-25 detector to sample from areas which may be at different air pressure to the detector location. Typical uses are for air-duct sampling and allowing the installation of the detector in under-floor or ceiling voids or when sampling from pieces of computer related equipment.
Simple designs with short sampling pipes produce the best results. Complex sampling pipe runs should be avoided with the FIRElink-25 detector. The use of ‘T’ branch-pipes is not recommended. To assist in design and to verify system performance, it is advisable to use the FIRElink PipeCAD® sampling pipe modelling software.
1131 4.1 Docking Station The basic principle behind installation of the FIRElink-25 is that all wiring and pipe-work is installed using a docking station. This is a convenient feature which means that the detector can be dismounted or replaced without disturbing any wiring or installed pipe-work.
4.1.2 Electrical Installation The FIRElink-25 detector is supplied with removable terminal blocks (See illustrations in Section 0). These are simply removed from their sockets by lifting them up at right angles to the circuit board. Take note of the orientation of each terminal block and its function before removing it. It may also be beneficial to mark the connection wires with suitable identification labels or coloured rings to aid in the connection process.
FIRElink-25 – Installation Manual Interfacing Because of the flexible nature of the FIRElink-25 detector and the many possible configurations, there are many options for interfacing the detectors to the Fire Panel. These include many third party interfaces available from various manufacturers. Because of this, it is not possible to give a complete list of all interfacing methods but the following pages will give details of the most common methods that are likely to be used.
Module and a number of other FIRElink detectors. It will be noted that whereas the FIRElink-400 units have two input / output buses (1A / 1B and 2A / 2B), the FIRElink-25 has only a single such bus (A / B) and therefore each bus terminal has an input and an output wire, compared with a single wire in each terminal in the FIRElink-400.
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The only settings that need to be made are on the FIRElink-APIC address DIP switches. The start loop address Is entered on SW1 and the end loop address on SW2. In the case of a single FIRElink-25 the start and end addresses will be the same.
Page 35 of 40 Maintenance FIRElink-25 is a very low maintenance detection system. If required, external cleaning of the unit should be performed using a damp (not wet) cloth. Do not use solvents as these may mar the front panel label.
If it is suspected that the laser alignment has shifted (e.g. after dropping the detector), it should be returned to Hochiki Europe (UK) Ltd for recalibration. Place the detector near high power RF sources.
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