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Data Sheet: Checkfire® SC-N Ansul® Detection and Control Equipment Checkfire® SC-N Electric Detection and Actuation System Application initiating circuits. The first time delay is field 002710 The CHECKFIRE SC-N Electric Detection and programmed to assign the time between the Actuation System furnishes fire detection for initial alarm condition from the detection circuit equipment hazard areas. Its unique actuator and the operation of the shutdown relay. The allows actuation of a pneumatically-actuated first time delay is programmable for 5, 10, 20, fire suppression system either manually or 30 seconds. The second time delay is field or automatically. programmed to assign the time between the completion of the first time delay (when the The CHECKFIRE SC-N system is typically used shutdown relay operates) and operation of the with an Ansul A-101 Vehicle Fire Suppression release circuit. The second time delay is field system for 24-hour protection of equipment. programmable for 0, 10, 20, or 30 seconds. The system is particularly suited for protection of equipment that is subjected to extreme Second Initiating Circuit environmental and physical conditions such The second initiating circuit is field programmable as vehicles used in forestry, mining, agriculture, to be used as either an electric manual pull or construction, public transportation, public a pressure switch feedback circuit. If selected utilities, land fill, and waste disposal. as an electric manual actuation input circuit, its operation will override the first time delay function The control module can be utilized as a self and initiate a second time delay condition, contained system, powered by its own internal causing the shutdown relay to immediately Lithium battery. This allows the detection system operate and the release to occur upon expiration Features to operate around-the-clock without use of of the second delay. Additionally, the control • FMRC Approved external power. Optionally, external power can be module can be field programmed, if it is so • CE marked connected to the control module. With external desired, to shorten the second time delay when • Self Contained – Internal 3.6 VDC power connected, the internal power source a manual actuation occurs. The time delay Power Source provides battery back-up. When connected to options associated with the manual actuation • External 12/24 VDC Power Source an external 12/24 VDC supply with the internal are 0, 10, 20, and 30 seconds, with the condition Connection Available battery also connected, the external power that it can only be less than or equal to the • Battery Back-up Available source becomes the primary supply, while the time delay associated with the detection circuit. • Power Fault Monitoring for Both Internal internal source is maintained in a standby mode and External Power of operation. The control module may be installed Selection of the second initiating circuit as a • Euro-Style Terminal Block for Field where the ambient temperature is between pressure switch feedback circuit will result in Connections –40°C to 60°C (–40°F to 140°F). the operation of the alarm relay and shutdown • Two Part Enclosure Design Simplifies relay, but will not operate the release circuit. Installation and Servicing Description Additionally, a trouble condition will occur on the • Environmentally Sealed Enclosure The complete CHECKFIRE SC-N system is control module, indicating the need for service. • Mounting Feet For Mounting To Any composed of components which are combined Suitable Flat Surface to provide automatic fire detection and actuation. The front panel contains a “DELAY” and “RESET” • Microprocessor Based Circuitry The electric detection and actuation system is button. Operation of the DELAY button will repeat • Sealed, Membrane Push Button For Reset designed for use with the Ansul fire suppression the first time delay if initiated while time delay and Delay systems that use pneumatic actuation as a one is active. Once time delay two has started, • Vibration and Shock Resistant Design means of system actuation. operation of the DELAY switch has no affect. • Electronic Circuitry That Meets The IEC The DELAY button also serves the dual function Standards For Electromagnetic Compatibility The first of two initiating circuit is the supervised of silencing the auxiliary alarm relay, but is only in Heavy Industrial Environments detection circuit designed to be connected to effective for this function 30 seconds after • Form “C” Relay Output Connection For Both linear (wire) and/or spot type thermal detectors release, or after pressure switch feedback Auxiliary Alarm and Shutdown Functions that provide a contact closure input to initiate operation has occurred. • Normally Open Trouble Contacts Available a fire detected condition. The second initiating for Remote Trouble Annunciation circuit is designed to accept a contact closure The RESET button is used to re-initialize the • Two Supervised Initiating Circuits – One For type of actuating device such as a manual control panel when depressed, it provides an Detection and One for Either Manual Electric electric pull station input or a pressure switch to indication that all LED’s and the sounder are Actuation or Pressure Switch Feedback initiate the module when the system is actuated functional. It is also used to upload the manual • One Supervised Release Circuit with the pneumatic/manual actuator. The initiating programming into the control module. • Manually Field Programmable Circuits circuits are low impedance and designed to (can optionally be PC programmed) eliminate nuisance alarms associated with The front panel also contains LED’s for visual • History File to Record The Last 50 Alarm contact bounce. annunciation of alarm, trouble, release, and and Trouble Events power conditions. • Built-in Diagnostic Function Identifies The First Initiating Circuit Source Of Trouble Two field programmable time delays provide EMI filtering is provided on all inputs, outputs, • Programmable Time Delays (Alarm to timing of shutdown and release functions and power circuitry. Shutdown, Shutdown to Release) associated with the operation of the detection and electric manual pull/pressure switch input Data Sheet: Checkfire® SC-N Construction Operational environmental Specifications Ordering information The enclosure consists of a cover assembly • Operating Temperature Rating: –40°C to 60°C Part No. Shipping Assembly and back box which is constructed of Noryl (–40°F to 140°F) 423500 CHECKFIRE SC-N Electric SE1GFN3 with a flammability rating of UL94 • Humidity: 24 Hours at 85% +/– 5% (423538 Detection and Actuation System V-1. The back box contains the field interface at 30°C (86°F) ULC) Includes: Control Module, terminal block, battery, and field wiring entrance • Shock: In accordance with UL1254 Manual/Automatic Actuator, ports. The cover assembly contains the control • Vibration: In accordance with UL1254 Mounting Bracket, Squib Cable PC board assembly, sounder, operator interface • Electromagnetic Compatibility: Meets EN Connector, LT-5-R Cartridge, panel, and environmental seal. The enclosure 55011 and EN 50082-2 for heavy industrial 1/4 in. Check Valve, Hardware meets IEC 529 requirements for dust and water environments Kit, Label Package, and Owners spray in all directions. Mounting feet allow • Moisture and Dust: Meets IEC 529 for direct Manual (Battery must be ordered mounting to any suitable flat surface. Steel water spray separately) mounting brackets are also available. 71230 Linear Detection Wire, 180 °C Sequence of operation (356 °F), 100 ft. (30.5 m) All circuitry, relays, switches, and LED’s are Upon receiving an input signal from either a 71231 Linear detection Wire, 180 °C contained on a single PC board. A board shorted detection wire or a closed thermal (356 °F), 500 ft. (152.4 m) mounted receptacle mates with the plug-in detector, the following functions will be per- 416218 Spot Detector – 132 °C (270 °F) terminal block mounted in the back box. A formed automatically: 416219 Spot Detector – 163 °C (325 °F) high pitch sounder is threaded into the cover 416220 Spot Detector – 182 °C (360 °F) and plugged into the PC board. The PC board 1. The Alarm LED will flash, the internal sounder 416213 Spot Detector Package (one is encapsulated to provide added protection will pulse at a rate of two times per second. required per detector) against moisture and dust. An RS232 connector The alarm relay will transfer resulting in remote 416214 Spot Detector Cable Clamp is provided for field programming from a PC alarm operation, and the shutdown time delay Package (for use with protective and for data retrieval from a trouble and alarm begins. (The operator can repeat the shutdown tubing) – one required for each event history file. The PC board assembly time delay if the DELAY button is pressed detector contains a DIP switch for optional manual before the shutdown time delay has expired). 416762 Spot Detector Cable Clamp programming functions without the use of a PC. Package (for use without protective 2. After the shutdown time delay has expired, tubing) – one required for Internal connections the Alarm LED pulse rate and the sounder each detector The internal battery is connected to the PC pulse rate will change to four times per sec- 416215 Flex Protective Tubing – 100 ft. board via a single plug. The external power ond. The shutdown relay will transfer result- (30.5 m) is connected to the field connection terminal ing in equipment shutdown (when provided), 416221 Spot Detector Bracket – one strip located in the back box. and the discharge time delay begins (when required for each detector set). 416784 AMP Crimp Tool (required for The field connection terminal strip located in spot detector assembly) the back box is a 16 position terminal block 3. After the discharge time delay has expired, 416113 Pneumatic/Linear Detector, 35 ft. containing the following terminations: the control module release circuit operates, (10.7 m) (Model 808-DRV) resulting in the fire suppression system 416216 Cable Assembly, 15 ft. (4.6 m) Position Circuit Description actuation. (for pneumatic/linear detector) 1 + External 12/24 VDC Power 416378 Mounting Clips Package for 2 – External 12/24 VDC Power After system discharge, the Alarm LED and Pneumatic/Linear Detector 3 + Detection Input sounder will continue to pulse at a rate of 4 Sensing Element (includes 100 4 – Detection Input times per second for 30 seconds. After that, clips) 5 + Manual Input it will switch to the trouble mode and pulse 417055 Wire, 200 °C, 18 AWG-2 w/Shield 6 – Manual Input once every 10 seconds. and Drain Wire 500 ft. (152 m) 7 + Release Input 56691 Nylon Cable Ties (Pkg. of 20) 8 – Release Input If manual actuation is performed through 56692 Rubber Sleeves (Pkg. of 20) 9 Trouble Common operation of the manual input circuit, the first 71820 Splicing Device (for linear detection 10 Trouble N.O. time delay will be by-passed and either wire) 11 Alarm N.O. immediate release will occur or the second 419780 Power Wiring Assembly – 15 ft. 12 Alarm Common time delay will begin. (connector on one end only) 13 Alarm N.C. 419781 Power Wiring Assembly – 15 ft. 14 Shutdown N.O. If manual actuation is performed by operating (connector on both ends) 15 Shutdown Common the mechanical actuator, the fire suppression 419782 Power Wiring Assembly – 10 ft. 16 Shutdown N.C. system will immediately discharge. The shutdown (connector on both ends) function will take place through the pressure 423520 Battery Shipping Assembly switch circuit (if provided). 419783 Battery Connection 423541 Release Circuit Test Module Approvals 423522 Operation and Maintenance FMRC (JI0B8A8.AF). CE marked. Manual Ardent Limited Unit 3, Becklands Close, Bar Lane, Roecliffe, Tel: +44 (0)870 162 5400 Boroughbridge, N. Yorkshire, Fax: +44 (0)870 162 5410 United Kingdon Y051 9LS www.ardent-uk.com ANSUL and CHECKFIRE are registered trademarks.
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