HART XL INSTALLATION OPERATION & COMMISSIONING MANUAL MANUAL NO.
Installation, Operation and Maintenance Manual FOREWORD This manual is intended to clearly and accurately reflect the High-Sensitivity Smoke Detector system with the Modular Control Equipment. This manual is to be used by trained distributors only. This publication describes the installation, operation and maintenance for the High-Sensitivity Smoke Detector system. TERMS AND ABBREVIATIONS AC/a.c.- Alternating Current AH Amperes per Hour CPU- Central Processing Unit DC/d.c.
Installation, Operation and Maintenance Manual TABLE OF CONTENTS Para Page 1 1.1 INTRODUCTION ........................................................................................................................ 1-1 Features ................................................................................................................................ 1-1 2 2.1 2.2 2.3 2.3.1 2.3.2 2.3.3 2.4 2.5 2.5.1 2.5.2 2.5.3 2.6 2.6.1 2.6.2 2.7 SYSTEM FUNCTIONAL DESCRIPTION .....................................
Installation, Operation and Maintenance Manual TABLE OF CONTENTS (Continued) Para Page 5 5.1 5.2 5.2.1 5.2.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9 5.9.1 5.9.2 5.9.3 5.10 5.11 5.12 5.13 5.14 5.15 5.16 5.17 5.18 5.18.1 5.18.2 5.18.3 5.18.4 5.18.5 5.18.6 5.19 5.19.1 5.20 5.21 5.22 5.23 5.24 5.25 5.25.1 5.25.2 5.25.3 5.25.4 SYSTEM DESIGN ......................................................................................................................5-1 Introduction ...............................................
Installation, Operation and Maintenance Manual TABLE OF CONTENTS (Continued) Para Page 7 7.1 7.2 7.3 7.3.1 7.3.2 7.3.3 7.3.4 7.3.5 7.3.6 7.3.7 ROUTINE MAINTENANCE ........................................................................................................ 7-1 Introduction............................................................................................................................ 7-1 Scheduled Maintenance .........................................................................
Installation, Operation and Maintenance Manual LIST OF ILLUSTRATIONS (continued) Figure Page 5.1 5.2 5.3 Anemometer................................................................................................................................5-3 Return Air Grill Sampling Method .............................................................................................5-12 Mini Sample Point Kit.............................................................................................................
Installation, Operation and Maintenance Manual SAFETY SUMMARY Installation Precautions Adherence to the following will aid in problem-free installation with long-term reliability: - Several different sources of power can be connected to this High Sensitivity Smoke Detection system. Disconnect all sources of power before servicing.
Installation, Operation and Maintenance Manual 1 INTRODUCTION This manual contains operation, installation, maintenance, trouble shooting and parts list information for the High Sensitivity Smoke Detection (HSSD) system. The HSSD system is designed to provide high sensitivity smoke detection for an area up to 2000 sq/m (20,000 sq/ft). Detection of smoke is achieved by using a fan to draw air from the protected area through sampling pipe network back to a Detector.
Installation, Operation and Maintenance Manual Table 1.1 Detector Technical Specification DESCRIPTION SPECIFICATION Weight 3.4 kg (7.5 lbs) Finish Polycarbonate Light Grey Material Input Voltage Detector Sensitivity Range 18 to 30 V DC (24 V DC nominal) Standard Detector Ultra Detector 0.005%/m to 1%/m 0.001%/m to 0.1%/m (0.0015% to 0.3%/ft) (0.0003% to 0.
Installation, Operation and Maintenance Manual Figure 1.
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Installation, Operation and Maintenance Manual 2 2.1 SYSTEM FUNCTIONAL DESCRIPTION General The following paragraphs provide a functional description of the overall operation of the system, as well as functional descriptions of the major components that together make up the High Sensitivity Smoke Detection (HSSD) system. 2.2 Overall Functional Description The High Sensitivity Smoke Detection system comprises a number of major components. Figures 2.1 to 2.2, show how these components are interconnected.
Installation, Operation and Maintenance Manual In addition to the detector, a sampling pipe network is required to carry the sampled air from the protected area to the detector. Overall performance of the High Sensitivity Smoke Detection system is dependent upon the layout of the air sampling pipe network. Use of the “SNIFF” computerised program balances the piping network to provide for an equal intake of air at each sampling hole.
Installation, Operation and Maintenance Manual Figure 2.
Installation, Operation and Maintenance Manual Figure 2.
Installation, Operation and Maintenance Manual 2.3 Detector The Detector consists of a backbox with a removable cover, incorporated within the Detector are a detector head, termination board and a fan. These three items are the major elements of the Detector, refer to Figure 2.3 detailing the detector block diagram. The design of the Detector allows surface mounting, thus providing ease of installation and maintenance.
Installation, Operation and Maintenance Manual Figure 2.
Installation, Operation and Maintenance Manual 2.3.1 Detector Head Located within the Detector, the detector head is a highly sensitive detector utilising a laser, focussed to a narrow beam. The laser beam exits a sample chamber into an attached beam dump area which monitors the laser intensity. A receive optics assembly is mounted on the sample chamber with its optical axis normal to the laser beam axis (see Figure 2.4).
Installation, Operation and Maintenance Manual Figure 2.
Installation, Operation and Maintenance Manual 2.3.2 Termination Board The termination board is micro processor controlled providing the interface between the detector head, the RS-485 network, the Display module and the PC Port. A seven position DIP switch on the termination board allows the network address to be set, enabling 127 Detectors to be connected. An on board memory stores configuration details, history events and system information.
Installation, Operation and Maintenance Manual INTERNAL WIRING CABLE ASSEMBLY RJ12 / RJ12 43682-K158 TB2 PRE ALARM1 PRE ALARM2 CM NO CM ALARM 1 NO CM ALARM 2 NO CM TROUBLE NO CM NC ISOLATE NO CM NC NO 1 CABLE ASSEMBLY TERM BOARD / TRI-COLOUR LED 43682-K157 RJ12 SOCKET LOCATED ON LHS OF UNIT NO CM CM NO ALARM 1 CM TROUBLE ALARM 2 NO CM NO CM NC ISOLATE NO CM NC NO TB2 PRE ALARM1 PRE ALARM2 POWER ON LED RL1 BLANKING PLATE C/W STATUS LED CHASSIS GROUND PC 1 IC5
Installation, Operation and Maintenance Manual 2.3.3 Fan Module The fan module contains a highly efficient radial fan that has been specifically designed for use within the Detector. The fan draws air from the sampling pipe network through the detector head and then exhausts the air through a port on the side of the unit or by an alternative optional rear exhaust port. In addition, an adapter port returns the sampled air to the protected area.
Installation, Operation and Maintenance Manual The Display Module incorporates a removable adapter plate, which permits the module to be mounted to the wall. Table 2.2 Display Module Specifications 2.
Installation, Operation and Maintenance Manual 2.5.1 PC Port The PC Port is used for programming and may be used to provide ancillary on premises one way communication of alarms and troubles to a PC (using LaserNET software). 2.5.2 RS485 Connection Up to 127 Detectors can be connected via the RS-485 network with the maximum bus length of 1 kM (4000 feet). This connection is capable of being wired for either Style 4 (Class B) or Style 6 (Class A) supervised operation. 2.5.
Installation, Operation and Maintenance Manual 2.6 Power Supplies An optional self-contained assembly supplies power to a single HSSD system. 2.6.1 Self Contained Power Supply The self contained power supply powers a single Detector, with or without a Display Module including 4 hours of battery backup. Table 2.4 Self Contained Power Supply Assembly DESCRIPTION SPECIFICATION Part Number 53836-K185 Weight (including batteries) 3.
Installation, Operation and Maintenance Manual Figure 2.
Installation, Operation and Maintenance Manual 2.7 Use of the Elutriator The Elutriator is an optional item and can be used if the protected area is expected to have heavy amounts of non-combustion particulate. An Elutriator should be installed to prevent build-up of material within the Detector. The elutriator is an inertial particle separator that allows air to flow freely through it while separating out large particulates by allowing them to accumulate on an impact plate. Refer to Figure 2.
Installation, Operation and Maintenance Manual 3 CONTROLS AND INDICATORS 3.1 Status Indicator A three-colour light emitting diode (LED) mounted in the fascia plate of the Detector provides a visual indication of the current status of the system. A similar LED is also provided on the Display Module. The LED changes colour to indicate the system status. System conditions that are indicated by this LED, are as follows: Continuous Green Flashing Green Continuous Yellow Flashing Red Continuous Red 3.
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Installation, Operation and Maintenance Manual On system power up the System Status Screen is displayed. This display is shown during the system’s “quiescent state”. If the status of the system is anything other than Normal then the respective status will be displayed instead, e.g. TROUBLE or ALARM.
Installation, Operation and Maintenance Manual Operation of any of the control keys on the Display Module will cause the Menu screen to be displayed. The Menu screen displays the allowable system functions via a scrollable menu. Highlighting is used to indicate the current selection. However, prior to the system functions being performed, the Password Entry screen is displayed and the operator is required to enter the relevant password.
Installation, Operation and Maintenance Manual If the system is in any state other then NORMAL (i.e. Alarm and Trouble) the following options are available scrollable in the following order: SILENCE RESET STATUS SMOKE AIRFLOW ISOLATE START TEST EXIT The control keys are detailed below with a description of their operation. LEFT UP DOWN RIGHT ENTER The and cursor control keys perform the same function, namely to scroll to the next menu option.
Installation, Operation and Maintenance Manual The Smoke Information screen appears as shown. The Airflow information screen appears as shown. The Test information screen appears as shown. 3.4 Sounder The Display Module provides an audible indication by use of an internal sounder. Upon activation of an event the internal sounder will provide an audible indication that an alarm or trouble condition exists on the system.
Installation, Operation and Maintenance Manual The conditions that activate the sounder are as follows: Alarm condition Pre-Alarm condition Trouble condition 3.5 Continuous operation Continuous operation Intermittent operation LaserNET software Details of the LaserNET software are contained in the LaserNET Software Manual Version 3.
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Installation, Operation and Maintenance Manual 4 INSTALLATION 4.1 Introduction The following paragraphs provide information needed to carry out an installation of a High Sensitivity Smoke Detection (HSSD) system. Installation consists of mounting the Detector and its various optional items. These items include the Display Module, the Intelligent Interface Module (IIM) andthe stand alone power supply.
Installation, Operation and Maintenance Manual An optional Self Contained Power Supply unit can be installed directly below the Detector. This unit will provide a supervised supply with the addition of battery back-up in case of mains failure. The Self Contained Power Supply cannot be used when the Detector is either mounted upside down or when flush mounted into the wall. Electrical connections to the Detector are possible by using the provided pre-formed conduit knock-outs.
Installation, Operation and Maintenance Manual ! CAUTION LASER HAZARD The detector in the enclosure is a factory-sealed unit containing a Class-3B laser product with invisible radiation. ! WARNING AVOID EXPOSURE TO BEAM Extended exposure to a Class-3B laser directly or indirectly may cause severe damage to the human eye. The Detector is designed for surface mounting. It is also capable of being mounted in different orientations to meet with the requirements of different applications.
Installation, Operation and Maintenance Manual Reference should be made to Chapter 5, System Design, for information on the design of the sampling pipe system. The sample inlet port of the Detector provides a 0.75 inch threaded interface section to the sampling pipe network. Once installed this will provide an airtight connection. Before connecting the piping network to the Detector, the piping must be connected to a vacuum cleaner for several minutes (at the Detector end of the network).
Installation, Operation and Maintenance Manual 4.4 Termination Board Field Wiring The following illustration shows the external connections for the termination board. Cable entries are from the top, bottom or rear via the conduit knock-outs on the Detector.
Installation, Operation and Maintenance Manual All external connections to the Detector should be earthed correctly. This is achieved by using the provided earth stud located in the bottom left corner of the Detector. 4.5 Installing the Display Module There are two options for installing the Display Module either within the Detector or remotely as a stand alone item.
Installation, Operation and Maintenance Manual 4.5.1 Installing the Remote Display Module The Remote Display Module back box is designed for surface mounting and should be mounted before assembly. The back box is fitted to the wall using four mounting screws. To allow communications between the Display Module and the Detector a 4-core screened cable is required, recommended Mineral Insulated Copper Cable (MICC) or Belden 9729 screened twisted pair.
Installation, Operation and Maintenance Manual Figure 4.
Installation, Operation and Maintenance Manual 4.6 Installing Self Contained Power Supply This unit will mount directly below the Detector and has been designed to allow ease of installation and maintenance. To mount the Self Contained Power Supply proceed as follows: (1) Remove the Self Contained Power Supply from its carton and carry out a visual inspection of the unit to ensure that no damage has occurred during transit. (2) Remove the screw located in the recess of the lid.
Installation, Operation and Maintenance Manual BLUE + - + SELF CONTAINED POWER SUPPLY UNIT BLACK RED BATT+ BATT+28V BATTERIES +28V (2 x 12 VOLT 2 AMP PER HOUR) TERMINATION BOARD CONNECTIONS (TB1) 0V RED POWER IN + 0V FAULT BLACK C/S POWER IN BLUE PSU STATUS + E N/C 90 TO 260 VAC CONNECTIONS EARTH N L NEUTRAL LIVE DETECTOR EARTH STUD CONNECTION Figure 4.
Installation, Operation and Maintenance Manual Figure 4.
Installation, Operation and Maintenance Manual 4.7 Installing the Intelligent Interface Module The following paragraphs provide information necessary to install the Intelligent Interface Module (IIM). Installation consists of mounting the module and wiring the module in to the system. All installation work should be undertaken by factory trained technicians and installed in accordance with applicable installation requirements. These being as follows: 4.7.
Installation, Operation and Maintenance Manual (6) Power must be supplied from a listed UL864 power supply, UL listed panel, or power supply. (7) Connect ground wire to grounding stud and fasten with washer nut. (8) Terminate the RS-485 wiring: (i) (9) Connect the wiring from trouble relay to a trouble monitoring circuit. (i) (10) Issue 1 February 2001 Terminate grounding shield to the IIM stand-alone enclosure ground Install 5.6k ohm (0.
Installation, Operation and Maintenance Manual Figure 4.
Installation, Operation and Maintenance Manual Figure 4.
Installation, Operation and Maintenance Manual 4.7.3 Setting Detector Address The following table provides the Detector Addresses. Table 4.
Installation, Operation and Maintenance Manual 4.7.4 Installation Checks Prior to powering up the IIM for the first time ensure that the following procedures have been completed. 4.7.5 (1) The IIM is secured correctly. (2) The IIM wiring is connected correctly. (3) Each termination board located in the Detector has had its DIP switch set to the correct address.
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Installation, Operation and Maintenance Manual 5 SYSTEM DESIGN 5.1 Introduction The chapter contains the necessary information to enable an engineer to determine the correct system design. The majority of this chapter covers the pipe network design. It is important that this phase is completed prior to the installation of any components comprising the High Sensitivity Smoke Detection (HSSD) system. 5.
Installation, Operation and Maintenance Manual 5.2.2 Standard Detector The Standard Detector has a dynamic sensitivity range 0.001 to 0.1 %/m (0.0003 to 0.3 %/ft) obscuration. Typical application are low-grade clean rooms to moderate levels of ambient particulate as detailed below. Sensitivity Ranges Recommended Applications Smoking 1 Elutriator %/Ft %/m 0.30 - 0.076 0.24 - 0.048 0.18 - 0.024 0.16 - 0.016 0.15 - 0.015 0.13 - 0.013 1.0 - 0.25 Underground Electric 0.8 - 0.16 Railways, Semi Dirty 0.
Installation, Operation and Maintenance Manual 5.5 Air Velocity The air velocity is determined using SNIFF Version 3.0 software. Three settings are available to deal with all types of sampling systems including return air duct sampling systems. Airflow is measured with a handheld anemometer. To measure the airflow the meter should be held in close proximity to the proposed position of the sampling point. The anemometer should then be rotated to obtain the maximum reading.
Installation, Operation and Maintenance Manual 5.9.1 Equivalent Feet A method used to determine relative efficiencies of different types of plumbing. 3.05 meters (1 foot) of straight pipe equals 3.05 equivalent meters (1 equivalent foot). The following table gives the equivalent measurement for different size and types of elbows. This data becomes critical when the maximum allowed pipe lengths are being approached. Table 5.1 Elbow Equivalent Measurements Elbow ID 32 mm (1 in.) 25 mm (0.75 in.
Installation, Operation and Maintenance Manual 5.12 System Transport Time System Transport Time relates to the time required for smoke to travel from the farthest sampling hole in the system to the Detector. NOTES (1) To meet the requirements of BS 6266 the maximum transportation time is 120 seconds. (2) For systems, which require an open area protection, the minimum detector sensitivity setting is in accordance with Table 5.
Installation, Operation and Maintenance Manual Table 5.
Installation, Operation and Maintenance Manual 5.13 Suction Pressure Suction pressure is a measure, in inches of water column, of the amount of suction available at each sampling point. Suction pressures can be measured with a 0 – 25 mm (0 - 1.0 inch) H20 Magnehelic gauge, and a length of micro tube. Insert one end of the micro-tube into a sampling hole, and connect the free end to the Magnehelic gauge.
Installation, Operation and Maintenance Manual 5.18.1 Telephone Central Offices In this application it is recommended that distributed pipe network sampling combined with return air grill sampling. Within this type of installation it is often desirable to provide two levels of sampling. One set of sampling points would be at ceiling level and the second set below the cable trays just above the equipment racks.
Installation, Operation and Maintenance Manual 5.19 Computer Balanced System Design using “SNIFF“ Version 3.0 Software A distributed pipe network sampling system is designed using the “SNIFF“ Version 3.0 software. The sampling system may have only one pipe segment or as many as 40 segments. The terminating pipe segments can be capped or open-ended. The pipe and hole size diameters are calculated and optimised by the “SNIFF“ Version 3.0 software. “SNIFF“ Version 3.
Installation, Operation and Maintenance Manual Then using a graphical interface the user will enter an Isometric View of the Pipe Network comprising of: (1) the length of pipe to the first sampling hole or branch point (2) the number of pipes in the system (3) the number of sampling holes (4) the spacing of the sampling holes (5) the number and type of system bends Once entered the software will automatically calculate the system parameters to ensure the transport time and suction pressures are met.
Installation, Operation and Maintenance Manual (4) Locate sampling pipe in the main supply duct return side, down stream of the filters a minimum of six duct widths from any source of turbulence (bends, inlets or deflection plates) to reduce the effects of stratification. In installations where the filter is capable of removing smoke, install the sampling tube upstream of the filter.
Installation, Operation and Maintenance Manual 5.23 Return Air Grill Sampling Design Return Air Grill Sampling systems are designed with the “SNIFF” Version 3.0 software. The same basic rules apply with the exception of the point spacing requirements. The return air grill sampling method and the distributed pipe sampling method can be used in the same detection zone. Sampling pipes should be centred in the front of the return air grill.
Installation, Operation and Maintenance Manual 5.24 Installing the Air-Sampling Pipe Network An air-sampling pipe network is an arrangement of pipes within the protected area through which air is drawn back to the Detector to be sampled. Piping may be metallic or non-metallic. The pipe must be smooth bore with internal diameters of 20, 25, 32 mm (½, ¾ or 1 inch) depending upon the design criteria. Figure 5.
Installation, Operation and Maintenance Manual 5.25 Final touches 5.25.1 Air-Sampling Pipe Labels The air-sampling pipe network must be marked with identification labels. These labels should be applied to the pipework every ten feet (maximum). 5.25.2 Sample Port Labels This label is placed adjacent to sample holes drilled into the walls of air-sampling pipe network. Each sample port must be labelled. 5.25.
Installation, Operation and Maintenance Manual 6 SYSTEM COMMISSIONING 6.1 Introduction This chapter covers the inspection and testing required for the High Sensitivity Smoke Detector (HSSD) system after completion of the installation. NOTE Prior to commissioning the system, ensure that all alarms and trouble circuits are disconnected or the Detector is isolated. This will prevent the signalling of alarms or troubles to ancillary equipment. 6.
Installation, Operation and Maintenance Manual Areas with higher levels of particulate may be beyond the Detector’s default sensitivity range and maintain an alarm condition, even during normal periods. In these instances, it is recommended that range be selected either manually or by the AutoSetup function by use of the LaserNET software. Commissioning tests will determine and verify that transport time and suction pressure are within design tolerances. 6.
Installation, Operation and Maintenance Manual Figure 6.1 Magnehelic Test Set-Up 6.6 Gross Smoke Test The Detector does not require calibration when installed. However, to insure the entire system is operational, a gross smoke test should be performed prior to final commissioning. To perform the gross smoke test, it is sufficient to simply introduce smoke into the last sampling hole of each branch. This can be smoke from a punk, cotton wick, or the commercially available smoke simulating aerosols.
Installation, Operation and Maintenance Manual BS6266 Test A4 According to BS6266 the following test is considered unlikely to produce hydrogen chloride vapour. This test may be undertaken in underfloor spaces or ceiling voids. NOTE The wire is subject to cooling if positioned in direct contact with air flows and may need to be shielded. 2 Connect a 2 metre length of 10/0.1mm (0.078m ) wire with a total radius of 0.
Installation, Operation and Maintenance Manual 7 ROUTINE MAINTENANCE 7.1 Introduction This chapter contains maintenance instructions for the High Sensitivity Smoke Detection (HSSD) system. These procedures should be accomplished on a scheduled basis. In the event that system problems are found during the performance of a procedure, reference should be made to Trouble Shooting and Corrective Maintenance which can be found in Section 8 of this manual. 7.
Installation, Operation and Maintenance Manual 7.3.4 Sample-Hole Airflow Verification Test The sample-hole airflow verification test insures each sample port is drawing air from the protected area. This test should be done at commissioning and within one year after installation and every year thereafter. To perform this test the suction pressure of each sample port must be checked. See Chapter 5 of this manual for the procedure for checking suction pressures.
Installation, Operation and Maintenance Manual (4) Avoid placing sensitive devices onto plastic or vinyl surfaces. (5) Minimise the handling of sensitive devices and Printed Circuit Boards (PCBs). The Detector optics should be cleaned as necessary. When following the step-by-step procedure it is assumed that the lid and power supply have been removed from the Detector. (1) Disconnect the connector at plug PL1 (6-way interconnecting harness).
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Installation, Operation and Maintenance Manual 8 TROUBLE SHOOTING AND CORRECTIVE MAINTENANCE 8.1 Introduction The effectiveness of this chapter is greatly increased by first reading previous chapters of this manual. The service technician must have a clear understanding of the purpose and correct function of the Detector before attempting corrective maintenance. The following paragraphs contain instructions to aid a technician in identifying and rectifying faulty components.
Installation, Operation and Maintenance Manual 8.3 Troubleshooting The Detector utilises internal communications for continuous self monitoring. Most system faults can be isolated by use of either the Display Module or LaserNET software. If any of the Detectors' modules are defective it is recommended that the module be replaced, as they cannot be serviced in the field. Refer to Tables 8.1 to 8.5 for troubleshooting tips and references.
Installation, Operation and Maintenance Manual Table 8.2 Intelligent Interface Module to Computer Communications Faults Intelligent Interface Module to Computer Communications Faults Symptom Corrective Action 1. Ensure that the computer to IIM cable is plugged in to the port marked “PC” on the IIM 2. Check the configuration of the LaserNET software under the Setup/System Computer/Configuration menus. The serial port must be set to the same COM port as the communications cable is plugged in to.
Installation, Operation and Maintenance Manual Table 8.3 General System Faults General System Faults Symptom Corrective Action 1. If the system is new, ensure that the actual pipe network system corresponds with the layout as calculated by the “SNIFF” design software. Items such as pipe diameters, elbows, sampling hole diameter and junction configurations should be checked. 2. Check for proper operation of the Fan module. Low Suction Pressure 3.
Installation, Operation and Maintenance Manual Table 8.4 Intelligent Interface Module to Termination Board Communications Problems Symptom Corrective Action 1. Check the LK1, LK2 and LK4 jumpers on the termination board. They must be shorting the two pins closest to the centre of the board. 2. Check the RS485 loop wiring. Loss of Communications between IIM and Protected zones 3. If using a stand-alone IIM, be sure that the LaserNET software is set to monitor each Detector correctly.
Installation, Operation and Maintenance Manual Table 8.5 Faults Indicated on the Display Module or LaserNET Graphic Display Faults Indicated on the LaserNET Graphic Display Display Module or LaserNET Graphic Display Message Indication Corrective Action 1. Check connections at the termination board. Detector Fault Detector Head Trouble 2. Clean the detector head. 3. If steps 1 and 2 do not resolve the problem, return the detector to the supplier. 1.
Installation, Operation and Maintenance Manual Table 8.5 Faults Indicated on the Display Module or LaserNET Graphic Display Faults Indicated on the LaserNET Graphic Display Display Module or LaserNET Graphic Display Message Indication Corrective Action 5. Check the battery wiring connections and continuity. Power Supply Fault PSU Trouble 6. Check the batteries for low output voltage. 7. Check for ground fault problems throughout all associated system wiring.
Installation, Operation and Maintenance Manual 8.4 Replacement The following paragraphs provide a list of procedures used to replace a faulty item within the High Sensitivity Smoke Detector (HSSD) system. These procedures describe how to remove the item from its location and how to insert the replacement item. ! CAUTION LASER HAZARD The detector in the enclosure is a factory-sealed unit containing a Class-3B laser product with invisible radiation.
Installation, Operation and Maintenance Manual The RS485 network supports up to 127 unique addresses. These are used to identify each zone of the HSSD system. The hardware address on each termination board must be set for correct operation of the communications network. Each termination board contains a DIP switch allowing the network address to be set for each Detector. If a replacement Detector is required to operate using the default settings no further action is necessary.
Installation, Operation and Maintenance Manual (3) Release in turn the four retaining clips located at each corner of the detector head. (4) Lift the detector head clear of the Detector. To replace the detector head secure the item in position by the four retaining clips. When the detector head is in position the paddle lever must be rotated quarter of a turn clockwise to ensure a secure fit. The connection from the termination board can then be fitted to plug PL1 on the detector head. Figure 8.
Installation, Operation and Maintenance Manual 8.4.3 Replacing the Termination Board When considering the following list of procedures to replace the termination board, it is assumed that the lid has been removed from the Detector. Prior to removal of the termination board, download all data for the Detector by use of the LaserNET software. However, should default settings apply, this operation is unnecessary.
Installation, Operation and Maintenance Manual Figure 8.
Installation, Operation and Maintenance Manual INTERNAL WIRING CABLE ASSEMBLY RJ12 / RJ12 43682-K158 TB2 PRE ALARM1 PRE ALARM2 CM NO CM ALARM 1 NO CM ALARM 2 NO CM TROUBLE NO CM NC ISOLATE NO CM NC NO 1 CABLE ASSEMBLY TERM BOARD / TRI-COLOUR LED 43682-K157 RJ12 SOCKET LOCATED ON LHS OF UNIT NO CM CM NO ALARM 1 CM TROUBLE ALARM 2 NO CM NO CM NC ISOLATE NO CM NC NO TB2 PRE ALARM1 PRE ALARM2 POWER ON LED RL1 BLANKING PLATE C/W STATUS LED CHASSIS GROUND PC 1 IC5
Installation, Operation and Maintenance Manual 8.4.4 Replacing the Fan Module When considering the following list of procedures, it is assumed that the lid has been removed from the Detector. To remove the fan module proceed as follows: (1) Remove the 24 V DC supply from the Detector. (2) Disconnect the exhaust port adapter, if used to return the sampled air to the area of origin. (3) Push the exhaust outlet away from the fan module.
Installation, Operation and Maintenance Manual 8.4.5 Replacing the Display Module When considering the following list of procedures, it is assumed that the lid has been removed from the Detector. To replace the Display Module when it is fitted within the Detector proceed as follows: (1) Remove the 24 V DC supply from the Detector. (2) Unplug the inter-connection harness from the termination board.
Installation, Operation and Maintenance Manual To replace the Remote Display Module proceed as follows: (1) Remove the 24 V DC supply from the Detector. (2) Remove the retaining screw located on the bottom of the Display Module. (3) Remove cover from the housing. Care should be taken as the Display Module is still connected by the inter-connecting cables from the termination board. (4) Remove the inter-connecting cables from the Display Module terminals.
Installation, Operation and Maintenance Manual 8.4.6 8.4.7 Replacing the Intelligent Interface Module (1) Remove the terminals from TB1 located on the Intelligent Interface Module (IIM). This will disconnect 24 V DC, RS485, auxiliary troubles and alarms. (2) Remove any RJ11 connectors from the three jacks, if used. (3) Remove the replacement IIM from its carton and carry out a visual inspection of the unit to ensure that no damage has occurred during transit.
Installation, Operation and Maintenance Manual Figure 8.
Installation, Operation and Maintenance Manual 9 PARTS LIST The following is a list of replacement parts for the HSSD system.
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Installation, Operation and Maintenance Manual Customer Name: Client Contact Name: Client Address: Project No; System Designer Name: Air Flow Conditions:* Forced Normal None m/s Air Flow Velocity: °C Temperature: ft/s °C max °F °F max Air conditioning Wall heaters Other Sources of contamination: Sources of vibration Sources of shock: Heat input:* Solar heating YES Stratification problem* Air input Source* Internally NO Recirculating External YES Reference Detector required:* Other NO
Installation, Operation and Maintenance Manual DELAYS Pre-Alarm 1 2 Alarm 1 2 SENSITIVITY THRESHOLDS Pre-Alarm Alarm 1 2 1 2 Day Night High Airflow setting Delay Period Low Airflow setting Delay Period sec Power Supply Delay Yes No Signal averaging* Period* Yes No Day/Night Set Day Start Time Yes No Cumulative delays Response Time: Battery Backup requirements (Hours): sec sec sec Detector Trouble Delay 2 seconds 4 seconds 8 seconds Night Start Time * delete as necessary Commissioned by: Print Name
