Notifier WFDN Waterflow Detectors

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WFDN Detectors SERIES WFDN Series Waterflow Detectors are compatible with 7 through 40 steel pipe sizes 2 through 4 50.8 through 101.6 mm and are compatible with Schedule 10 40 steel pipes sizes 5 through 8 127 mm through mm They can be mounted in a vertical or horizontal Series detectors are contained in a rugged NEMA 4 enclosure Designed for both indoor and outdoor use the Series operates across a wide temperature range to 150 0 to 66 models are equipped with tamper resistant cover to prevent unauthorized entry Inside two sets of SPDT synchronized switches are enclosed in a durable ter block with a new layout designed to make wiring easy wire ready terminals COM terminals are on a different There is a large barrier between switches and raised lettering make it easy to read An optional cover tam switch is available which securely snaps into place no required Series detectors incorporate a mechanical time delay which minimizes the risk of false alarm due to pres surges or air trapped in the sprinkler system The larger easy to turn timer dial makes setting the waterflow detec easy WFDN Series is designed for accuracy and repeatability detector also offers improved performance during vibra in riser applications where detectors are exposed to a rush of water New directional cover allows installers and inspectors to see the direction of flow UL Listed models are NEMA 4 rated Sealed retard mechanism immune to dust and other con Less exposed metal reduces shock hazard Plastic cover as an insulator and is resistant to arcing Visual switch activation Audible switch activation 73 dBA Field replaceable timer switch assembly Accommodates up to 12 AWG wire Switch synchronization activates both alarm panel and local or horn strobe Tamper resistant cover screws water sealing Reduced product weight Wire ready terminals Snap in optional cover tamper switch timer repeatability and accuracy wiring with new terminal block layout cid 129 I 500 Initiating Devices Waterflow Detector SERIES Pressure Rating 450 PSI Threshold Bandwidth flow rate 4 to 10 GPM Surge 18 feet per second FPS 5.4864 m sec Pipe steel water pipe 2 4 50.8 mm through mm rated for use with Schedule 7 through 40 pipe 5 127 mm through 203.2 mm rated for use with Schedule 10 40 pipe Ratings two sets of SPDT Form C contacts 10.0 1 2 HP 125 250 VAC 2.5 A 6 12 24 VDC Entrances two openings for 0.5 12.7 mm con One open one knock out type NEMA 4 rated plugs Temperature Range 32 Rating NEMA 4 suitable for indoor outdoor use Tamper Switch standard for ULC models optional for models P N CTS Use NFPA 13 for Automatic Sprinkler NFPA 13D for or Two Family Dwelling NFPA 13R for Residential Occu up to Four Stories NFPA 72 for National Fire Alarm 3 years 150 5 15 17 Page 1 of 4 SPECIFICATIONS SERIES waterflow detectors shall be installed on system as designated on the drawing and or as specified Detectors shall mount on any clear pipe span of the nominal size either a vertical upflow or horizontal at least 6 152.4 mm from any fittings which may change direction flow rate or pipe diameter or no closer than 0.6096 m from a valve or drain Detectors shall have a in the range of 4 to 10 gallons per minute and a pressure rating of 450 psi for 2 50.8 mm to 8 203.2 pipes The detector shall respond to waterflow in the direction after a preset time delay which is field The delay mechanism shall be a sealed mechani pneumatic unit with visual indication of actuation The actu mechanism shall include a polyethylene vane inserted a hole in the pipe and connected by a mechanical link to the delay mechanism Outputs shall consist of dual switches Form C contacts Two conduit entrances for fittings of commonly used electrical conduit shall be on the detectors A grounding provision is provided noted enclosures shall be NEMA 4 Listed by Under Laboratories Inc All detectors shall be Listed by Laboratories Inc for indoor or outdoor use Listings and Approvals listings and approvals apply to the modules specified in document In some cases certain modules or applications not be listed by certain approval agencies or listing may in process Consult factory for latest listing status UL Listed S739 ULC Listed S739 MEA Listed 167 93 E CSFM 7770 1653 114 FM Approved Information Series Detectors Models Models Size and Replacement Parts Number 50.8 mm 63.5 mm 76.2 mm 101.6 mm 127 mm 152.4 mm 203.2 mm wrench for metal cover switch kit mechanism and switch assembly Weight Size 31.75 mm 31.75 mm 50.8 mm 50.8 mm 50.8 mm 50.8 mm 50.8 mm lbs lbs lbs lbs lbs lbs lbs 2 of 4 DN 3396 B cid 129 5 15 17 Field Wiring Diagram cid 129 5 15 17 Page 3 of 4 Dimensions Installed is a registered trademark of Spears Manufacturing Company is a registered trademark of Victaulic Company of America by Honeywell International Inc All rights reserved Unauthorized use this document is strictly prohibited document is not intended to be used for installation purposes We try to keep our product information up to date and accurate cannot cover all specific applications or anticipate all requirements specifications are subject to change without notice more information contact Notifier Phone 203 484 7161 FAX 203 484 7118 in the U S A 4 of 4 DN 3396 B cid 129 5 15 17

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