Siemens OOH740 Technical Manual
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Siemens OOH740 Technical Manual

Automatic fire detectors
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OOH740, OOHC740
Automatic fire detectors
Technical Manual
A6V10305793_m_en_--
2016-02-15
Building Technologies
Control Products and Systems

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Summary of Contents for Siemens OOH740

  • Page 1 OOH740, OOHC740 Automatic fire detectors Technical Manual Building Technologies A6V10305793_m_en_-- 2016-02-15 Control Products and Systems...
  • Page 2 Issued by: Siemens Switzerland Ltd. Building Technologies Division International Headquarters Gubelstrasse 22 CH-6301 Zug Tel. +41 41 724-2424 www.siemens.com/buildingtechnologies Edition: 2016-02-15 Document ID: A6V10305793_m_en_-- © Siemens Switzerland Ltd, 2010 2 | 108 Building Technologies A6V10305793_m_en_-- Fire Safety 2016-02-15...

  • Page 3: Table Of Contents

    Message'36 3.3.3 Diagnosis levels ................37 3.3.4 Line separator ................38 3.3.5 Internal alarm indicator in the case of ES <20 (OOH740 and OOHC740) ....................38 3.3.6 External alarm indicator in the case of ES <20 (OOH740 and OOHC740) ....................39 3.3.7 Advanced flashing behavior of the alarm indicators in the case of ES ≥20 (OOH740 and OOHC740) .............40...
  • Page 4 Specification ..............61 4.2.6 Default settings for operating on the C-NET ........ 61 4.2.7 Setting the parameter set in collective operation......62 4.2.8 Sample applications for OOH740 ..........62 4.2.9 Sample applications for OOHC740 ..........63 4 | 108 Building Technologies A6V10305793_m_en_--...
  • Page 5 Technical CO alarm ...................64 4.3.1 Parameter sets for the 'Technical CO Alarm' .......64 4.3.1.1 Description ..............64 4.3.1.2 Use ................65 4.3.1.3 Specification..............66 4.3.1.4 Default settings ............67 4.3.1.5 Application examples ...........67 4.3.2 Ambient features .................68 Technical Ambient Supervision Message ...........69 4.4.1 Ambient features .................69 4.4.1.1 Temperature monitoring ..........71 4.4.1.2...
  • Page 6 Supervision Message' ..............98 7.2.4.1 'Technical Ambient Supervision Message' performance check ............98 Specifications ..................99 Technical data for OOH740 ............... 99 Technical data for OOHC740 ..............102 Dimensions ..................... 104 Environmental compatibility ..............104 Index ....................... 105 6 | 108...

  • Page 7: About This Document

    Intended use The automatic fire detectors OOH740 and OOHC740 may only be used on a C- NET detector line in a FS720 fire detection system. The automatic fire detector OOH740 may also be used on a collective detector line or a conventional detector line.
  • Page 8 About this document Applicable documents Document identification The document ID is structured as follows: ID code Examples ID_ModificationIndex_Language_COUN A6V10215123_a_de_DE A6V10215123_a_en_-- -- = multilingual or international A6V10315123_a_--_-- Date format The date format in the document corresponds to the recommendation of international standard ISO 8601 (format YYYY-MM-DD). Conventions for text marking Markups Special markups are shown in this document as follows:...

  • Page 9: Applicable Documents

    List of compatibility (for 'Cerberus™ PRO' product line) A6V10254740 Operating instructions Solo461 heat detector tester kit RE7T A6V10284161 Data sheet Automatic fire detectors OOH740, OOHC740 A6V10316300 Installation Detector base (collective) DB110, DB110D, DB110R, DB110RD, detector base seal RS720, detector locking device LP720, base attachment BA720...

  • Page 10: Technical Terms

    About this document Technical terms 1.3 Technical terms Term Explanation Alarm indicator ASA (ASA technology ) Advanced Signal Analysis Carbon monoxide External alarm indicator End-of-line Product version C-NET Addressed detector line Internal alarm indicator Light-emitting diode MAK value Maximum concentration at the workplace: maximum permissible concentration of a toxic substance in the air at the workplace 1.4 History of changes...
  • Page 11 – 'Behavior in degraded mode operation' – 'Line separators' – 'External alarm indicator in the case of ES <20 (OOH740 and OOHC740)' – 'Extended flashing behavior of the alarm indicators in the case of ES ≥20 (OOH740 and OOHC740)' –...
  • Page 12 ISO 8601 (format: yyyy- mm-dd) 02.2012 Detector base DB722 and base attachment BA720 added, marine approval for OOH740 added 11.2011 OOH740: VdS approval and CPD number added 09.2011 IP protection categories adapted 06.2011 Chapter 'Removing the diode unit' added 05.2011 Detector base DB110 added 02.2011...

  • Page 13: Safety

    Safety Safety instructions 2 Safety 2.1 Safety instructions The safety notices must be observed in order to protect people and property. The safety notices in this document contain the following elements: ● Symbol for danger ● Signal word ● Nature and origin of the danger ●...
  • Page 14 Safety Safety instructions How risk of injury is presented Information about the risk of injury is shown as follows: WARNING Nature and origin of the danger Consequences if the danger occurs ● Measures / prohibitions for danger avoidance How possible damage to property is presented Information about possible damage to property is shown as follows: NOTICE Nature and origin of the danger...

  • Page 15: Safety Regulations For The Method Of Operation

    2.2 Safety regulations for the method of operation National standards, regulations and legislation Siemens products are developed and produced in compliance with the relevant European and international safety standards. Should additional national or local safety standards or legislation concerning the planning, mounting, installation,...
  • Page 16 Disregard of the safety regulations Before they are delivered, Siemens products are tested to ensure they function correctly when used properly. Siemens disclaims all liability for damage or injuries caused by the incorrect application of the instructions or the disregard of danger warnings contained in the documentation.

  • Page 17: Standards And Directives Complied With

    Safety Standards and directives complied with 2.3 Standards and directives complied with A list of the standards and directives complied with is available from your Siemens contact. 2.4 Release Notes Limitations to the configuration or use of devices in a fire detection installation with a particular firmware version are possible.

  • Page 18: Structure And Function

    3 Structure and function 3.1 Overview In this document the following point detectors are referred to collectively using the term 'Automatic fire detectors': ● Multi-sensor smoke detector, ASA OOH740 ● Neural fire detector OOHC740 Multi-sensor smoke detector, ASA Neural fire detector...

  • Page 19: Multi-Sensor Smoke Detector, Asa Ooh740

    Structure and function Overview 3.1.1 Multi-sensor smoke detector, ASA OOH740 Figure 1: Multi-sensor smoke detector, ASA OOH740 Properties ● Communication via C-NET (addressed detector line) ● Address automatically issued during commissioning ● Can also be used on collective detector lines in conjunction with the detector bases DB721D and DB110 ●...

  • Page 20: Neural Fire Detector Oohc740

    Structure and function Overview 3.1.2 Neural fire detector OOHC740 Figure 2: Neural fire detector OOHC740 Properties ● Communication via C-NET (addressed detector line) ● Address automatically issued during commissioning ● Built-in line separator Signal processing with ASA technology and optional detection behavior ●...

  • Page 21: Features Of Fire Detection Functionality

    Structure and function Overview 3.1.3 Features of fire detection functionality Properties ● Dynamic influence on the parameter sets ● Pattern recognition ● Real time interpretation of the situation ● Process- and time-controlled switchover of the parameter sets Signal processing of the point detectors is based on ASA technology (ASA = Advanced Signal Analysis).

  • Page 22: Features Of The 'Technical Co Alarm

    Structure and function Overview Switching over the parameter set In addition to selecting the parameter set, the point detectors with ASA technology enable time- or process-controlled switching over of the parameter sets (Manned/Unmanned switchover). Thanks to this function, the detector can be used in places where the situation changes regularly and frequently (e.g.
  • Page 23 Structure and function Overview Sensory The signals captured by the CO sensor are corrected with regard to CO exposure, sensor sensitivity, temperature, and aging and supplied to the algorithm. The algorithms are set by selecting the parameter set. Algorithms The parameter set can be used to select static and dynamic algorithms. A real time interpretation of the ambient conditions results in improved measurement accuracy.

  • Page 24: Features Of The 'Technical Ambient Supervision Message

    3.1.5 Features of the 'Technical Ambient Supervision Message' 'Technical Ambient Supervision Message' mode can only be selected for point detector OOH740 from product version ES ≥20. The evaluation of the CO concentration in 'Technical Ambient Supervision Message' mode can only be selected for point detector OOHC740.

  • Page 25: Product Version Es

    Structure and function Overview 3.1.7 Product version ES The product version ES provides the technical status of a device in terms of software and hardware. The product version is provided as a two-digit number. You will find the details of your device's product version: ●...

  • Page 26: Setup

    Structure and function Setup 3.2 Setup 3.2.1 Structure of OOH740 The multi-sensor smoke detector ASA OOH740 is a multi-criteria fire detector and has two optical and two thermal sensors. Structure and function Figure 8: Sensors of the OOH740 1 Heat sensors...

  • Page 27: Structure Of Oohc740

    Structure and function Setup The combination of optical and thermal sensor signals optimizes detection reliability. This has the following advantages: ● Early detection of all types of fire, whether they generate light or dark smoke, or no smoke at all. ●...
  • Page 28 Structure and function Setup Fire detection The point detector's high-quality opto-electronic measuring chamber houses the following components: ● Two optical transmitters ● One optical receiver ● Two thermal sensors ● One CO sensor The transmitters illuminate the smoke particles from different angles. One sensor acts as forward scatterer, the other as backward scatterer.
  • Page 29 Structure and function Setup Technical CO alarm The point detector has a high-quality CO sensor which is based on the measurement principle of the electro-chemical cell. Instances of the specified CO concentration being exceeded can be detected by the CO sensor. The limit values vary depending on the parameters set. You can set the following CO response behaviors on the neural fire detector OOHC740: ●...

  • Page 30: Function

    Please note the chapter 'Applicable documents'. Parameter sets for fire detection in collective mode The point detector OOH740 can also be operated in collective mode. There are several parameter sets for fire detection available in collective mode. The parameter sets are selected in collective mode using resistors installed in the detector base.

  • Page 31: Parameter Sets For Fire Detection

    Always use the suitable parameter set for fire detection for the corresponding application. The default device parameter set is not always the suitable parameter set. Overview of parameter sets for fire detection (addressed detector line) OOH740 OOHC740 Parameter set sensor mode 0 'Neural fire detector'...
  • Page 32 Structure and function Function OOH740 OOHC740 Parameter set sensor mode 1 'Heat detector' 'A1R' 'BR' 'A1S' 'BS' OOH740 OOHC740 Parameter set sensor mode 2 'Smoke detector' 'Universal' 'Robust' 'Sensitive' 'Super Sensitive' – 'Ultra Sensitive' – Only from product version ES ≥20 X = parameter set can be selected –...
  • Page 33 68 kΩ (resistor PSR720-2) If there is still a flashing signal on a point detector OOH740 more than 3 minutes after the detector line was started up, there is a fault. You will find more information in chapter 'Internal alarm indicator in the case of ES <20 (OOH740 and OOHC740) [➙...

  • Page 34: Parameter Sets For 'Technical Co Alarm

    The neural fire detector OOHC740 cannot be operated as a pure CO detector. You must always select a parameter set for fire detection as well as the parameter set for CO. Overview of parameter sets for CO detection OOH740 OOHC740 Parameter set 'Robust EU1' –...

  • Page 35: Danger Levels And Warning Levels

    The evaluation of the danger level and the decisions to be taken (e.g. activation of remote transmission) are configured in the fire detection system. Danger levels when operating on a collective detector line The point detector OOH740 can transmit the following danger levels to the fire control panel: Danger level...

  • Page 36: Warning Levels For Co

    Structure and function Function 3.3.2.2 Warning levels for CO The functions described in this section are only available on the OOHC740. Measured values above a response threshold depending on the parameter set for CO are not the only basis for reaching a warning level for CO. The CO progression is also observed over a longer period of time and evaluated using algorithms.

  • Page 37: Diagnosis Levels

    The CO sensor can only be monitored for failure. For a functional test, the CO sensor must be tested with test gas. Operating the point detector OOH740 in collective mode: When an error occurs which impairs the correct functionality of the device, a fault message is reported to the control panel.

  • Page 38: Line Separator

    Reset the detector line on the control panel. 3.3.5 Internal alarm indicator in the case of ES <20 (OOH740 and OOHC740) Information about the product version of your device can be found in the 'Product version ES [➙...

  • Page 39: External Alarm Indicator In The Case Of

    The flashing behavior of the external alarm indicators in addressed mode for higher point detector product versions is described in the 'Advanced flashing behavior of the alarm indicators in the case of ES ≥20 (OOH740 and OOHC740) [➙ 40]' chapter.

  • Page 40: Advanced Flashing Behavior Of The Alarm Indicators In The Case Of Es ≥20 (Ooh740 And Oohc740)

    The table below describes the flashing behavior of internal alarm indicators in addressed mode. You will find information on the flashing behavior of the OOH740 in collective mode in chapter 'Internal alarm indicator in the case of ES <20 (OOH740 and OOHC740) [➙...
  • Page 41 Structure and function Function The above graphics are not valid in countries in which the alarm is indicated by an alarm indicator that lights up permanently. For more information, please contact your regional company. Please also observe the documentation for your fire detection system. External alarm indicators The table below describes the flashing behavior of external alarm indicators in combination with a point detector whose product version corresponds to the title of...

  • Page 42: Connection For External Alarm Indicators

    Operating the point detector OOH740 in collective mode: The external alarm indicator is activated in the event of an alarm. Two external alarm indicators can be connected to the point detector OOH740. See also 2 Sounder base DBS720 [➙ 47] 2 Connection diagram, addressed [➙...

  • Page 43: Behavior In Degraded Mode

    During this time, the point detector's response time is considerably reduced. This makes it easier to test the point detector with test gas. See also 2 Internal alarm indicator in the case of ES <20 (OOH740 and OOHC740) [➙ 38] 2 Setting the parameter set in collective operation [➙ 62] 2 Testing the point detector [➙...

  • Page 44: Line Tester

    Structure and function Mechanical setup 3.3.12 Line tester The line tester FDUL221 is able to recognize and localize the following errors on the C-NET: ● Wiring error ● Open line ● Short-circuit ● Ground fault In addition, the line tester recognizes the devices connected to the C-NET detector line.

  • Page 45: Accessories

    Multi-sensor fire detector OH720 – Smoke detector OP720 – Heat detector HI720 – Heat detector HI722 – Multi-sensor smoke detector, ASA OOH740 – Neural fire detector OOHC740 – Interbase DBS72x – Air sampling smoke detection kit FDBZ290 ● Order no.: S54319-F11-A1...

  • Page 46: Detector Base Db721D

    ● For surface-mounted cable entry, up to 8 mm cable diameter ● Compatible with: – Multi-sensor smoke detector, ASA OOH740 – Air sampling smoke detection kit FDBZ290 ● Order no.: S54319-F15-A1 See also 2 Detector base DB72x and detector base (collective) DB110 [➙...

  • Page 47: Sounder Base Dbs720

    Multi-sensor fire detector OH720 – Smoke detector OP720 – Heat detector HI720 – Heat detector HI722 – Multi-sensor smoke detector, ASA OOH740 – Neural fire detector OOHC740 ● You will find more information in document A6V10218037 ● Order no.: S54319-F5-A1 See also 2 Sounder base DBS720 [➙...

  • Page 48: Base Attachment Ba720

    Structure and function Accessories 3.5.8 Base attachment BA720 ● There are several potential break-out points in the base attachment for surface-mounted cable entry ● For the recess-mounted cable entry ● Permanent connection and joint installation with detector base ● Compatible with: –...

  • Page 49: Detector Heating Unit Fdbh291

    Multi-sensor fire detector OH720 – Smoke detector OP720 – Heat detector HI720 – Heat detector HI722 – Multi-sensor smoke detector, ASA OOH740 – Neural fire detector OOHC740 – Interbase DB72x ● Order no.: S54319-F9-A1 See also 2 Detector locking device LP720 [➙ 82]...

  • Page 50: Micro Terminal Dbz1190-Aa

    2 Connection diagram, collective [➙ 87] 3.5.17 Parameter set resistance 68 kΩ PSR720-2 ● For selecting the 'High Sensitive Fast' parameter set on a point detector OOH740 in collective mode ● Resistance value: 68 kΩ ● Install the resistors directly in a detector base DB721D or...

  • Page 51: Planning

    4 Planning 4.1 Compatibility Compatible with control panels that support the C-NET detector line. The point detector OOH740 is also compatible with control panels which support collective mode. You will find detailed information in the 'List of compatibility'. The table below shows the compatibility of the devices with various product lines:...
  • Page 52 Planning Fire detection Room geometry High ceilings, complex room shapes or well-ventilated rooms have a complex room geometry. This aggravates early fire detection, as it is difficult for the fire phenomenon to reach the fire detector. An office room with normal ceiling height has a simple room geometry.

  • Page 53: Parameter Sets: Sensor Mode 0 'Neural Fire Detector

    Planning Fire detection 4.2.2 Parameter sets: Sensor mode 0 'Neural fire detector' 4.2.2.1 Description (Parameter set numbers in brackets) High Suppression (8): To cover applications with permanent, optical deceptive phenomena (dry ice in discotheques, welding), this parameter set only reacts when a temperature rise of approx.
  • Page 54 This parameter set is also suited for applications that can otherwise only be covered with special detectors. Super Sensitive (11): This parameter set can be selected for all point detectors OOH740 from product version ES ≥20. The parameter set is suitable for applications that require fast and sensitive response behavior.

  • Page 55: Use

    Planning Fire detection 4.2.2.2 Use Name Risk of damage Concentration Room geometry Deceptive Risk of fire Critical fire size of valuable to persons phenomena items small… low… simple… few… small… small… large high complex many large medium 'High Suppression' 'Suppression' 'Suppression CO' 'High Compensation' 'Robust'...

  • Page 56: Specification

    Planning Fire detection 4.2.2.3 Specification The following table shows the characteristics and fields of application of the parameter sets of the point detectors OOH740 and OOHC740. Name Optical Thermal Typ. Response Sensitivity, Sensitivity, Static Differential activation Differential time activation temperature...

  • Page 57: Parameter Sets: Sensor Mode 1 'Heat Detector

    Planning Fire detection 4.2.3 Parameter sets: Sensor mode 1 'Heat detector' Select 'Sensor mode 1' 'Heat detector' if the detector should only react thermally. Name 'A1R' 'A1R' 'BR' 'A1S' 'BS' All parameter sets meet the criteria of standard EN 54-5. 57 | 108 A6V10305793_m_en_-- Building Technologies...

  • Page 58: Parameter Sets: Sensor Mode 2 'Smoke Detector

    'Fast Response' in sensor mode 0 without temperature influence. Super Sensitive (5): The parameter set can be selected for all point detectors OOH740 from ES ≥20. With regard to aerosols, this parameter set reacts in a way that is comparable to the 'Super Sensitive' parameter set in sensor mode 0 without temperature influence.

  • Page 59: Use

    2.3 / 8 'Robust' 2.3 / 8 'Universal' 2.3 / 8 'Sensitive' 1.6 / 5.6 'Super Sensitive' 1.0 / 1.5 'Ultra Sensitive' 0.35 / 0.5 Only in the OOH740 from ES ≥20 59 | 108 A6V10305793_m_en_-- Building Technologies Fire Safety 2016-02-15...

  • Page 60: Parameter Sets For Collective Operation

    Planning Fire detection 4.2.5 Parameter sets for collective operation Collective mode is only possible with the point detector OOH740. 4.2.5.1 Description Standard Plus: This parameter set is fast and highly sensitive. It is thus especially suited to rooms without deceptive phenomena, where the priority is on early fire detection.

  • Page 61: Specification

    Device location cannot be localized (e.g., due to a fault) The device parameter set 0 is set with sensor mode 0 in the point detectors OOH740 and OOHC740 when delivered. The following table shows the default device parameter set in the various sensor modes.

  • Page 62: Setting The Parameter Set In Collective Operation

    Planning Fire detection 4.2.7 Setting the parameter set in collective operation In the case of the point detector OOH740, the set parameter set depends on the resistor installed in the detector base. Parameter set in fire Resistance value in the...

  • Page 63: Sample Applications For Oohc740

    Planning Fire detection 4.2.9 Sample applications for OOHC740 The table below includes examples regarding the selection of the parameter set for the point detector. The examples cannot be used universally, but illustrate typical applications. Environment Deceptive phenomena / detector Parameter set behavior No special requirements 'Robust (2)' in sensor mode 0...

  • Page 64: Technical Co Alarm

    Planning Technical CO alarm 4.3 Technical CO alarm The 'Technical CO Alarm' mode can only be selected on the neural fire detector OOHC740. NOTICE The system is not controlled as laid down in EN 54-2 Infringement of the EN 54-2 standard ●...

  • Page 65: Use

    Planning Technical CO alarm 4.3.1.2 Use Name Risk of increased CO concentration Room geometry Deceptive Compensation concentration of CO phenomena range (risk of damage to persons) small … low … simple … few … small … large high complex many large 'Robust EU1' 'Balanced EU2'...

  • Page 66: Specification

    Planning Technical CO alarm 4.3.1.3 Specification The table below shows the characteristics and fields of application of the parameter sets for CO of the point detector. Name Response thresholds of warning levels 1 to 3 'Technical CO Alarm' Alarming according to [ppm CO] standard Static...

  • Page 67: Default Settings

    Planning Technical CO alarm 4.3.1.4 Default settings When the point detector is supplied, the default device parameter set for CO (parameter set 0, 'Robust EU1') is set. The optimum parameter set for CO must be selected when commissioning the fire detection system.

  • Page 68: Ambient Features

    Planning Technical CO alarm 4.3.2 Ambient features In selecting the optimum parameter set for CO, the following factors must be taken into account: Positioning the point detector CO is slightly less dense than air and spreads evenly though the room when at a constant temperature.

  • Page 69: Technical Ambient Supervision Message

    4.4 Technical Ambient Supervision Message 'Technical Ambient Supervision Message' mode can only be selected for point detector OOH740 from product version ES ≥20. The evaluation of the CO concentration in 'Technical Ambient Supervision Message' mode can only be selected for point detector OOHC740.
  • Page 70 Planning Technical Ambient Supervision Message Example of temperature monitoring caused by hysteresis: Figure 10: Ambient supervision output signal when the operating temperature threshold value of 35 °C is exceeded and a hysteresis range of 5 °C is selected. The diagram below shows the progression of the output signal.

  • Page 71: Temperature Monitoring

    The threshold value can be selected within a range that exceeds the permissible ambient temperature. The adjustable threshold value for the OOHC740 is -20…+50 °C The adjustable threshold for the OOH740 is -20…+55 °C. Hysteresis ranges You can set two hysteresis ranges: ●...

  • Page 72: Configuration

    Hysteresis range of 5 °C Temperature [°C] Permissible threshold value range: -20…+50 °C for OOHC740 -20…+55 °C for OOH740 Temperature undershot/ Selects whether the output signal should be sent when the set temperature exceeded threshold value is undershot or exceeded.

  • Page 73: Mounting / Installation

    Mounting / Installation Required space 5 Mounting / Installation 5.1 Required space ● Upon insertion of the detector base and sounder base, the detector base is placed under stress by compression, tension, and torsion. The fastening method must, therefore, be designed accordingly. ●...

  • Page 74: Detector Base Db72X And Detector Base (Collective) Db110

    Mounting / Installation Detector base DB72x and detector base (collective) DB110 5.2 Detector base DB72x and detector base (collective) DB110 ● Install the detector base DB72x or DB110 directly on the ceiling. ● Insert the cables into the detector base. You have the option of using the following types of line: –...
  • Page 75 Mounting / Installation Detector base DB72x and detector base (collective) DB110 Connection terminals The following detector bases have screw terminals: ● DB721 ● DB721D ● DB720 ● DB110 The following detector bases have spring clips: ● DB722 DB721 DB721D DB720 DB110 DB722 Figure 11: Screw terminals and spring clips...

  • Page 76: Sounder Base Dbs720

    Mounting / Installation Sounder base DBS720 5.3 Sounder base DBS720 1. Install the sounder base DBS720 directly on the ceiling. 2. Insert the cables into the sounder base DBS720. You have the option of using the following types of line: –...

  • Page 77: Detector Base Seal Rs720

    Mounting / Installation Detector base seal RS720 5.4 Detector base seal RS720 ● Use the detector base seal RS720 to install point detectors in wet rooms. Protection category: IP42. ● Compatible with the detector bases DB72x, the detector base (collective) DB110 and the sounder base DBS720.

  • Page 78: Base Attachment Ba720

    Mounting / Installation Base attachment BA720 5.5 Base attachment BA720 Install base attachment BA720 if you are using a cable with a diameter >8 mm for surface-mounted cable entry. The base attachment BA720 is attached to the ceiling together with a detector base.

  • Page 79: Base Attachment Wet Ba721

    Mounting / Installation Base attachment wet BA721 Mounting for surface-mounted cable entry: 1. Break out the areas required for cable entry in base attachment BA720 (1). 2. Insert the cables into the base attachment BA720 (1) through the broken-out areas. 3.
  • Page 80 Mounting / Installation Base attachment wet BA721 Click Click Fig. 2 DB110xx DB721 DB721D Fig. 1 DBZ1193A FDBZ294 Fig. 3 Fig. 4 DBZ1194 Figure 15: Installation and removal of protective cages and designation plates on base attachment wet BA721 Fig. 1 Installation of base attachment wet BA721 ●...
  • Page 81 Mounting / Installation Base attachment wet BA721 Installation (Fig. 1 and Fig. 2) 1. Install the M20 x 1.5 metal cable gland(s) in the back box of the base attachment wet. 2. Fit the back box securely to the substructure with 2 screws (detail A). 3.

  • Page 82: Detector Locking Device Lp720

    Mounting / Installation Detector locking device LP720 5.7 Detector locking device LP720 A point detector can be protected against theft with the detector locking device LP720. Figure 16: Installing the detector locking device LP720 A Set screw M3 x 12 mm B Allen key 1.

  • Page 83: Designation Plate Fdbz291

    Mounting / Installation Designation plate FDBZ291 5.8 Designation plate FDBZ291 1. Label designation plate FDBZ291 with location address of point detector. 2. Attach designation plate FDBZ291 to detector base DB72x or detector base (collective) DB110. If the detector base seal RS720 is being used, it is not possible to install the designation plate FDBZ291.

  • Page 84: Cable Entry

    Mounting / Installation Cable entry 5.9 Cable entry The detector bases DB72x and DB110 contain four screw terminals. A maximum of 2 cables may be connected to each screw terminal. The cable cross section of the screw terminals is 0.2…1.6 mm Terminal assignment in addressed operation Terminal name Connection...

  • Page 85: Auxiliary Terminals Dbz1190-Aa/-Ab

    Mounting / Installation Detector lines 5.9.1 Auxiliary terminals DBZ1190-AA/-AB Use the following auxiliary terminals for multiple connections: ● DBZ1190-AB connection terminal 1…2.5 mm² ● DBZ1190-AA micro terminal 0.28…0.5 mm² Figure 18: Detector base with connection terminals and micro terminals 5.10 Detector lines 5.10.1 Connection diagram, addressed Cables and topology ●...
  • Page 86 Mounting / Installation Detector lines C-NET connection diagram – – – – – Figure 19: Connection diagram for addressed detector lines 1 Control panel 5 Cable –EAI6 2 Detector base DB72x, sounder base DBS720 6 Cable –EAI5 (optional) 3 Auxiliary terminal DBZ1190-xx 7 Short circuit (error) 4 External alarm indicator 8 Short circuit (error)

  • Page 87: Connection Diagram, Collective

    Detector lines 5.10.2 Connection diagram, collective If the point detector OOH740 is used on a collective detector line, the parameter set is selected by installing a resistor PSR720-1 or PSR720-2 in the detector base. The resistors are available as accessories.
  • Page 88 Mounting / Installation Detector lines Connection diagram Figure 20: Connection diagram for collective detector lines 1 Control panel 4 External alarm indicator 2 Detector base DB721D or DB110 5 Resistor for selecting the point detector's parameter set 3 Auxiliary terminal DBZ1190-xx Connection for terminals '5' and '6' If a point detector is removed from its detector base, all downstream detectors on the stub remain active.

  • Page 89: Detector Dust Cap

    Mounting / Installation Detector dust cap 5.11 Detector dust cap 1. Cover the point detector with the detector dust cap during the construction phase. This will protect the point detector from dust and dirt. 2. Once construction work is complete, remove the detector dust cap from the point detector.

  • Page 90: Detector Heating Unit Fdbh291

    Mounting / Installation Detector heating unit FDBH291 5.12 Detector heating unit FDBH291 5.12.1 Installation of the detector heating unit When the detector is exposed to icing or moisture condensation (e.g., in cooling rooms, attics, loading ramps), detector heating unit FDBH291 is installed in the detector base.

  • Page 91: Connection Of The Detector Heating Unit

    Mounting / Installation Detector heating unit FDBH291 5.12.2 Connection of the detector heating unit ● Connect the cables for the monitored supply from the control panel and the detector heating unit to the supplied micro terminals DBZ1190-AA. ● The cables can be placed in the same cable harness as the detector line or separately.

  • Page 92: Migration From Collective Detector Line To Addressed Detector Line

    One fire detection installation is installed for collective detector lines. w Detector bases DB721D are installed on the detector line. w Point detectors OOH740 are installed in the detector bases DB721D. 1. Install a fire detection installation with one C-NET detector line 2.

  • Page 93: Removing The Diode Unit

    Mounting / Installation Migration from collective detector line to addressed detector line 5.13.1 Removing the diode unit Figure 23: Removing the diode unit 1 Detector base DB721D 3 Diode unit 2 Screwdriver size 1 WARNING Falling diode unit Risk of eye damage ●...

  • Page 94: Commissioning

    Commissioning Commissioning on the C-NET 6 Commissioning 6.1 Commissioning on the C-NET The devices are commissioned via the control panel. The exact procedure is described in the control panel documentation. Conduct a performance check once commissioning is complete. 6.2 Commissioning on a collective detector line The devices are commissioned via the control panel.

  • Page 95: Maintenance / Repair

    Hot air fan Collective operation In collective operation, the point detector OOH740 has a reduced response time for a period of 3 minutes following the detector line being started up or reset. In this time, the point detector responds faster to test gas or a hot air fan than in normal operation.

  • Page 96: Test Mode On The Control Panel

    Maintenance / Repair Testing the point detector 7.2.1 Test mode on the control panel The fire detectors are highly resistant to deceptive phenomena. This means that optical fire detectors, for example, will recognize the immediate occurrence of smoke (such as that which occurs during testing with test gas) as a deceptive phenomenon and will not trigger an alarm.

  • Page 97: Testing The Fire Detection Functionality

    'Internal alarm indicator in the case of ES <20 (OOH740 and OOHC740) [➙ 38]' and 'Advanced flashing behavior of the alarm indicators in the case of ES ≥20 (OOH740 and OOHC740) [➙...

  • Page 98: Testing The Functionality Of The 'Technical Ambient Supervision Message

    Maintenance / Repair Testing the point detector 7.2.4 Testing the functionality of the 'Technical Ambient Supervision Message' You do not have to check the functionality of the 'Technical Ambient Supervision Message' on a regular basis. Testing the fire detection functionality and the CO functionality ensures that the 'Technical Ambient Supervision Message' is also working.

  • Page 99: Specifications

    = 25 °C Air pressure = 1000 hPa (750 Torr) 8.1 Technical data for OOH740 You will find information on approvals, CE marking, and the relevant EU directives for this device (these devices) in the following document(s); see 'Applicable documents' chapter: ●...
  • Page 100 Specifications Technical data for OOH740 External alarm indicator External alarm indicators which can be 2 external alarm indicators and 1 sounder base connected Voltage DC 10…17 V Current 9…15 mA Flashing interval times: ● Normal bright flashing 15 ms ●...
  • Page 101 Specifications Technical data for OOH740 Collective detector line Detector line Operating voltage DC 14…28 V Maximum current connection factor See 'Collective maximum current connection factor' table Quiescent current at: ● Maximum current connection factor = 1 65…100 μA ● Maximum current connection factor = 1.25 80…125 μA...

  • Page 102: Technical Data For Oohc740

    Specifications Technical data for OOHC740 8.2 Technical data for OOHC740 You will find information on approvals, CE marking, and the relevant EU directives for this device (these devices) in the following document(s); see 'Applicable documents' chapter: ● Document A6V10284161 Detector line Operating voltage (modulated) DC 12…33 V Operating current (quiescent)
  • Page 103 Specifications Technical data for OOHC740 Ambient conditions Operating temperature -20...+50 °C Storage temperature -20…+55 °C Optimum storage temperature 0…+20 °C Air humidity ~15…95 % rel. during continuous operation Condensation water may impair the function of the CO sensor. Protection category (IEC 60529): ●...

  • Page 104: Dimensions

    Specifications Dimensions 8.3 Dimensions OOH740 OOHC740 OOH740 with base DB72x or DB110 OOHC740 with base DB72x 8.4 Environmental compatibility This equipment is manufactured using materials and procedures which comply with current environmental protection standards as best as possible. More specifically, the following measures have been undertaken: ●...

  • Page 105: Index

    Index Index Degraded mode operation Collective behavior Ambient supervision Fire control panel failure Application as heat detector Delivery Sensor mode 1 Default device parameter set 0 with sensor mode Application as neural fire detector Sensor mode 0 Designation plate Application as smoke detector Detector base Sensor mode 2 Mounting...
  • Page 106 Index Environmental compatibility Order number Original language Product version Source language EU directives 99, 102 External alarm indicator 39, 42 Packaging label Addressed mode Product version Alarm Parameter set Alarm in test mode Detection behavior of the detector 31, 34 Can be operated in collective mode Detection behavior of the point detector C-NET...
  • Page 107 Index Test mode Temperature exceeded Addressable detector Temperature increase 27, 29 Collective detector Temperature undershot Threshold value 71, 71 Test device Topology Detector tester RE6T Type plate Heat detector tester kit RE7T Solo461 Product version Hot air fan Test gases REF8, REF8-S Warning level Test gases REF8, REF8-S Signal processing of the point detector...
  • Page 108 Issued by © Siemens Switzerland Ltd, 2010 Siemens Switzerland Ltd Technical specifications and availability subject to change without notice. Building Technologies Division International Headquarters Gubelstrasse 22 CH-6301 Zug +41 41-724 24 24 www.siemens.com/buildingtechnologies Document ID: A6V10305793_m_en_-- Manual FD720 Edition: 2016-02-15...

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