Fire-Lite WFD and WFDT(NR)

WFDN Detector 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) F-950 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