AFDT

Accuflow™ T-Tap Solid State Waterflow Detectors Models Available AFDT AFDTH AFDTA AFDTHA Water Flow Detector Water Flow Detector Water Flow Detector (ULC/Candian) Water Flow Detector (ULC/Candian) Replacement Par ts WFDW 546-9000 WFDN4 PRK9 AFDPCBRK Cover wrench Cover tamper switch kit Gasket kit Paddle Kit Retard PCB kit AFDT AFDT (cover removed) Product Overview Solid state retard assures precise timing accuracy Designed for use with 1” NPT connections Dipswitch selections simplify retard settings Non-polarized, two-wire design allows connection to a local bell and conventional or addressable systems Terminals accommodate up to 12 AWG wire Synchronized switches activate both the alarm panel and local bell simultaneously Field-replaceable retard assembly Simplified Operation. Accuflow detectors are designed to simplify installation. Wired like traditional waterflow detectors, the Accuflow series does not require the installer to run an additional third wire. Two conduit openings permit easy attachment to the local alarm system. System Sensor’s Accuflow™ T-Tap series is a new line of solid state waterflow detectors designed for primary signaling in residential systems and branch line signaling. These models fit 1” NPT tees including: 1”, 1-1/4” and 1-1/2” NPT threaded ferrous and brass tees; 1”, 1-1/4”, 1-1/2” and 2” copper sweat tees; 1” CPVC tees; and 1-1/2” polybutylene tees. For 2” cast and malleable threaded tees use 2” paddle (P02-0023-000) provided. Robust Construction. The Accuflow AFDT model consists of a rugged enclosure for indoor and outdoor use. Like all System Sensor waterflow detectors, Accuflow models operate across a wide temperature range, from 32ºF to 120ºF (0°C to 49°C). Reliable Performance. Accuflow detectors incorporate a solid state retard to ensure consistently accurate timing. Designed for use within conventional and addressable fire alarm systems, Accuflow detectors include connections for both the panel or addressable module, as well as a local bell or notification device. False Alarm Immunity. The solid state circuitry of the Accuflow series provides greater timing accuracy over traditional mechanical retard designs. This accuracy minimizes the risk of false alarms created by pressure surges or air trapped within the sprinkler system. Engineering Specification T-Tap style water flow detector with a solid state retard shall be an Accuflow™ Series model number __________ manufactured by System Sensor. Water flow detector shall be installed on a tee that has a 1” NPT branch including: 1”. 1-1/4”, or 1-1/2” threaded ferrous or brass tee; 1-2” copper sweat tee; 1” CPVC tee; or 1-1/2” polybutylene tee as designated on the drawings and/or specified herein. For 2” cast and malleablle threaded tees use 2” paddle (P02-0023-000) provided. Detector shall mount on any clear pipe span of the appropriate size, either in a ver tical or horizontal run at least 6” from any fittings or valves which may change water direction, flow rate, or pipe diameter, or no closer that 24” from a valve or drain. For 2” cast and malleablle threaded tees use 2” paddle (P02-0023-000) provided. Detectors shall have a sensitivity in the range of 4 to 10 gallons per minute and a static pressure rating of 250 psi. The detector shall respond to water flow in the specified direction after a preset time delay. The delay mechanism shall be a solid state unit which is fieldadjustable via a dipswitch. The actuation mechanism shall include a polyethylene vane inser ted through the tee fitting and connected by a mechanical linkage to the delay mechanism. Outputs shall consist of one SPDT switch (Form C contact) and one SPST switch (normally open) for wiring to an alarm panel or addressable control module and/or bell or notification device. Two conduit entrances (one of which is a knockout type) for standard fittings of commonly used electrical conduit shall be provided on the detectors. A grounding provision shall be provided. AFDT housing shall be NEMA 4 rated by Under writers Laboratories for indoor/outdoor use. All other models shall be rated for indoor use. Standard Specifications Static Pressure Rating 250 PSI Triggering Threshold Bandwidth (Flow Rate) 4 - 10 GPM Maximum Surge 18 Feet Per Second (FPS) Compatible Pipe Threaded ferrous and brass tees, copper sweat tees, CPVC tees, and polybutylene tees Overall Dimensions Installed AFDT: 4.5”H x 3.75”W x 6.7”L (11.4cm H x 9.5cm W x 17cm L) AFDTH: 4.5”H x 3.55”W x 6.7”L (11.4cm H x 9cm W x 17cm L) Contact Ratings One SPDT (Form C) One SPST (normally open) 0.6 A @ 125 VAC 2.0 A @ 30 VDC Voltage Range 8.4 - 35 V (DC-FWR) 108 - 132 VAC Current Draw 300 microamps @ 12/24 VDC or FWR 400 microamps @ 120 VAC Compatibility The Accuflow and Accuflow Low Flow detectors may receive power and operate on a two-wire initiating zone of a fire alarm control panel. When determining compatibility of these devices, the standby operating voltage of the control panel must be between 8.5 and 35 volts. In the standby mode, each Accuflow and Accuflow Low Flow detector acts as a shot across the initiating zone. For two wire conventional fire alarm control panels, not more than 5 waterflow detectors may be connected to a single initiating zone. The maximum retard/reset time of the water flow detector plus the initiating zone shall not exceed 90 seconds. For two wire addressable control panels, the number of water flow detectors connected to the panel’s signaling line circuit shall be limited by the circuit’s current capacity. Conduit Entrances Two openings for 1/2” conduit, one open, one knock-out type Operating Temperature Range 32°F - 120°F (0°C to 49°C) Enclosure Rating AFDT: UL Indoor/outdoor rated - NEMA 4 All others: Indoor rated Cover Tamper Switch Optional, par t no. 546-9000 Shipping Weight 2.5 lbs. (1.13 kg) Ser vice Use Automatic Sprinkler: NFPA-13 One or Two Family Dwelling: NFPA-13D Residential Occupancies up to 4 stories: NFPA-13R National Fire Alarm Code: NFPA-72 Retard Settings 0 - 90 seconds, in increments of 15 seconds Warranty 3 years Ordering Information Model Number AFDT* Description Water flow Detector, Fits 1”, 1-1/4”, 1-1/2” ferrous and brass threaded tees; 1”, 1-1/4”, 1-1/2”, 2” copper sweat tees; 1” CPVC tees; and 1-1/2” polybutylene tees Water flow Detector, Fits 1”, 1-1/4”, 1-1/2” ferrous and brass threaded tees; 1”, 1-1/4”, 1-1/2”, 2” copper sweat tees; 1” CPVC tees; and 1-1/2” polybutylene tees Replacement Part Number 560-9000 WFDW WFDN4 PRK9 AFDPCBRK Description Cover tamper switch kit Tamper proof wrench for cover Gasket kit Paddle kit - 12 paddles Retard PCB kit AFDTH* . *ULC version designated with “A” suffix (AFDTA, AFDTHA). System Sensor Sales and Service System Sensor Headquarters 3825 Ohio Avenue St. Charles, IL 60174 Ph: 800-SENSOR2 Fx: 630/377-6495 Documents On Demand: 1-800-736-7672 x3 Web: www.systemsensor.com System Sensor in Canada Ph: 905.812.0767 Fx: 905.812.0771 System Sensor in Europe Ph: + 44.1403.276500 Fx: + 44.1403.276501 System Sensor in China Ph: + 86.29.524.6253 Fx: + 86.29.524.6259 System Sensor in Singapore Ph: + 65.273.2230 Fx: + 65.273.2610 System Sensor in the Far East Ph: + 852.21919003 Fx: + 852.27366580 System Sensor in Australia Ph: + 613.54.281.142 Fx: + 613.54.281.172 System Sensor in India Ph: + 91.11.558.2119 Fx: + 91.11.567.6815 © 2003 System Sensor. The company reserves the right to change product specifications without notice. A05-0281-002•1/03(10K)•#1051