System Sensor B524RB(A) Smoke Alarm User Manual
Contents
1. placement zoning and special appli cations Copies of these manuals are available at no charge from System Sensor For installation in Canada refer to CAN ULC S524 Standard for the Installation for Fire Alarm Systems and CEC Part 1 Sec 32 NOTICE This manual should be left with the owner user of this equipment IMPORTANT The detector used with these bases must be tested and maintained regularly following NFPA 72 require ments The detectors should be cleaned at least once a year D450 16 01 General Information Form C latching relay contacts are included for the control of an auxiliary function The relay operates 12 seconds nominally after activation of the sensor head remote an nunciator output Mounting The detector base mounts directly to 3 2 and 4 inch oc tagon and 4 inch square boxes with or without a plaster ring To mount remove the decorative ring by rotating it in ei ther direction to unhook the snaps Then separate the ring from the base Install the base on the box using the screws supplied with the junction box and the appropriate slots in the base Replace the decorative ring on the base and ro tate it in either direction until the ring snaps in place see Figure 1 156 659 06 Installation Guidelines All wiring must be installed in compliance with all appli cable local codes and any special requirements of the local authority having jurisdiction using the proper wire sizes The condu2. requires removal of the decora tive ring The tamper resist feature can be defeated by breaking and removing the plastic lever from the base However this pre vents the feature from being used again 156 659 06 Figure 3A Activating the tamper resist feature BREAK TAB AT DOTTED LINE BY TWISTING TOWARD CENTER OF BASE PLASTIC LEVER Figure 3B Removing the detector head from the base USE SMALL BLADED SCREWDRIVER TO PUSH PLASTIC LEVER IN DIRECTION OF ARRO Or te a A78 1175 08 AWWARNING The Limitations of Property Protection Smoke Detectors The smoke detector used with this base is designed to activate and ini tiate emergency action but will do so only when it is used in conjunction with an authorized fire alarm system This detector must be installed in accordance with NFPA standard 72 Smoke detectors will not work without power AC or DC powered smoke detectors will not work if the power supply is cut off Smoke detectors will not sense fires which start where smoke does not reach the detectors Smoldering fires typically do not generate a lot of heat which is needed to drive the smoke up to the ceiling where the smoke detector is usually located For this reason there may be large de lays in detecting a smoldering fire with either an ionization type detector or a photoelectric type detector Either one of them may alarm only after flaming has initiated which will generate
3. the heat needed to drive the smoke to the ceiling Smoke from fires in chimneys in walls on roofs or on the other side of a closed door s may not reach the smoke detector and alarm it A detector cannot detect a fire developing on another level of a building quickly or at all For these reasons detectors shall be located on every level and in every bedroom within a building Smoke detectors have sensing limitations too Ionization detectors and photoelectric detectors are required to pass fire tests of the flaming and smoldering type This is to ensure that both can detect a wide range of types of fires Ionization detectors offer a broad range of fire sensing capa bility but they are somewhat better at detecting fast flaming fires than slow smoldering fires Photoelectric detectors sense smoldering fires better than flaming fires which have little if any visible smoke Because fires de velop in different ways and are often unpredictable in their growth nei ther type of detector is always best and a given detector may not always provide early warning of a specific type of fire In general detectors cannot be expected to provide warnings for fires re sulting from inadequate fire protection practices violent explosions es caping gases which ignite improper storage of flammable liquids like cleaning solvents which ignite other similar safety hazards arson smok ing in bed children playing with matches or lighters etc Smoke de
4. INSTALLATION AND MAINTENANCE INSTRUCTIONS B524RB A and B224RB A Plug in Relay Detector Bases For use with the following models B524RB For use with any 500 Series detector B224RB For use with any 200 Series detector Specifications Base Diameter Base Height 6 2 inches 157 mm B224RB 1 2 inches 31 mm B524RB 1 4 inches 36 mm Mounting SYSTEM A S9 SENSOR 3825 Ohio Avenue St Charles Illinois 60174 1 800 SENSOR2 FAX 630 377 6495 4 inch square box with or without plaster ring Min Depth 1 5 inches 13 mm 4 inch octagon box Min depth 1 5 inches 13 mm 3 2 inch octagon box Min depth 1 5 inches 13 mm Operating Temperature Range Operating Humidity Range Electrical Ratings Operating Voltage Time Averaged Standby Ratings 0 to 49 C 32 to 120 F 10 to 93 Relative Humidity Non condensing 15 to 28 VDC lt 500 WA 24 VDC Relay Characteristics Coil 2 coil latching Contact Type 1 Form C Contact Relay Resistive 2 A 30 VDC Inductive 0 3 A 110 VDC with 35 PF or greater 0 3 A 120 VAC with 35 PF or greater 1 0 A 30 VDC with 6 PF or greater Set Time 4 seconds minimum 20 seconds maximum Reset Time 1 second minimum 8 seconds maximum Before Installing Please thoroughly read the system wiring and installation manuals and manual 156 407 Guide for Proper Use of Sys tem Smoke Detectors which provides detailed information on detector spacing
5. STED PAIR RECOMMENDED LISTED COMPATIBLE CONTROL PANEL OTHER INTELLIGENT 3 RELAY COMMON A 1 NORMALLY CLOSED Vy 2 NORMALLY OPEN U naene Nnr nr nr he nar we mnr he te ee a ce te a at i ae de i gt ie ip is ie ie gt i ip ie i i gt i ia e D A CLASS A OPTIONAL WIRING A label is affixed to the base for recording the zone ad dress and type of detector being installed at the base loca tion This information is useful for setting the detector head address and for verification of the sensor type required for that location Once all detector bases have been wired and mounted and the loop wiring has been checked the detector heads may be installed in the bases Tamper resist Feature NOTE Do not use the tamper resist feature if the removal tool is to be used This detector base includes a tamper resist feature that pre vents its removal from the base without the use of a tool D450 16 01 A78 1577 15 To activate this feature break the tab from the detector base as shown in Figure 3A see page 4 Then install the detector To remove the detector from the base once the tamper re sist feature has been activated insert a small bladed screw driver into the slot in the side of the base and push the plastic lever away from the detector head see Figure 3B page 4 This allows the detector to be rotated counter clockwise for removal NOTE Head removal after the tamper resist feature has been activated first
6. ctors used to connect smoke detectors to control panels and accessory devices should be color coded to re duce the likelihood of wiring errors Improper connections can prevent a system from responding properly in the event of a fire For signal wiring the wiring between interconnected de tectors it is recommended that the wire be no smaller than 18 gauge 1 0 square mm However wire sizes up to 12 gauge 3 3 square mm can be used with the base The use of twisted pair wiring or shielded cable for the power and loop is recommended to minimize the effects of electrical interference If shielded cable is used the shield connection to and from the detector must be continuous by using wire nuts crimp ing or soldering as appropriate for a reliable connection Alarm system control panels have specifications for allow able loop resistance Consult the control panel specifica tions for the total loop resistance allowed before wiring the detector loops Wiring Instructions AWWARNING The base uses a latching relay that can change states if it is subjected to mechanical shocks or jarring As a result even though relay contacts are in the open state when the base is shipped from the factory the contacts may have closed during shipment Connecting an auxiliary control circuit to closed relay con tacts can cause an unexpected and possibly dangerous ac tivation of that circuit Therefore do NOT connect an auxiliary cont
7. or s toll free number 800 SENSOR2 736 7672 for a Return Authori zation number send defective units postage prepaid to System Sensor D450 16 01 Repair Department RA 3825 Ohio Avenue St Charles IL 60174 Please include a note describing the malfunction and suspected cause of failure The Company shall not be obligated to repair or replace units which are found to be defective because of damage unreasonable use modifications or alterations occurring after the date of manufacture In no case shall the Company be liable for any consequential or incidental damages for breach of this or any other Warranty expressed or implied whatsoever even if the loss or damage is caused by the Company s negli gence or fault Some states do not allow the exclusion or limitation of inci dental or consequential damages so the above limitation or exclusion may not apply to you This Warranty gives you specific legal rights and you may also have other rights which vary from state to state 156 659 06 System Sensor 1998
8. rol circuit to the relay contacts terminals 1 2 and 3 before ensuring that the relay contacts are in their open state Ensure that the contacts are open by applying power to the bases WITHOUT the sensor heads installed Make wiring connections by stripping about s 10 mm of insulation from the end of the wire Then slide the wire under the clamping plate and tighten the clamping plate screw D450 16 01 Figure 1 Mounting the base to an electrical box SNAP ON DECORATIVE RING SCREWS NOT f _ SUPPLIED DETECTOR BASE BOX NOT SUPPLIED A78 1175 21 Wire the normally open NO line to terminal 2 see Figure 2 Insert the normally closed NC line of the relay to ter minal 1 and the relay common line to terminal 3 Wire the communication lines in and out to terminal 4 In sert the communication line in and out to terminal 5 Terminal 6 is for shielded cable only see Figure 2 If shielded cable is used the shield connection to and from the detector must be continuous by using wire nuts crimping or soldering to ensure a reliable connection If shielded cable is not used leave terminal 6 in the screwed down position Check the zone wiring of all bases in the system before in stalling detector heads This includes checking the wiring for continuity correct polarity ground fault testing and performing a dielectric test 156 659 06 Figure 2 Wiring diagram TWI
9. tectors used in high air velocity conditions may have a delay in alarm due to dilu tion of smoke densities created by frequent and rapid air exchanges Addi tionally high air velocity environments may create increased dust contamination demanding more frequent maintenance Smoke detectors cannot last forever Smoke detectors contain electronic parts Even though smoke detectors are made to last over 10 years any part can fail at any time Therefore smoke detectors shall be replaced after being in service for 10 years The smoke detector system that this detector is used in must be tested regularly per NFPA 72 This smoke detector should be cleaned regularly per NFPA 72 or at least once a year Three Year Limited Warranty System Sensor warrants its enclosed smoke detector base to be free from defects in materials and workmanship under normal use and service for a period of three years from date of manufacture System Sensor makes no other express warranty for this smoke detector base No agent representa tive dealer or employee of the Company has the authority to increase or alter the obligations or limitations of this Warranty The Company s obli gation of this Warranty shall be limited to the repair or replacement of any part of the smoke detector base which is found to be defective in materials or workmanship under normal use and service during the three year pe riod commencing with the date of manufacture After phoning System Sens
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