System Sensor LFD Models Manual

INSTALLATION AND MAINTENANCE INSTRUCTIONS Accuflow Low Flow Waterflow Detector Solid State Time Retard Ratings: Threshold Bandwidth Rate): Pressure Rating: Installed: Temperature Range: Pipe: Weight: Rating: Range: Requirements: S. Patent Number: A @ 125VAC; 2 A @ 30VDC gpm maximum PSI (Max) x 3.0 x 6.7 to 120 (0 to 49 Low Flow models listed below to 7 lb., according to size. Type 4 V (DC 108 VAC at 12 and 24 V (DC or at 120 VAC 6,084,521; 6,275,160 Read Carefully And Save instruction manual contains important information about the instal- and operation of waterflow detectors. Purchasers who install water- detectors for use by others must leave this manual or a copy of it with user. all instructions carefully before beginning. Follow only those instruc- that apply to the model you are installing. vane-type waterflow detectors in wet-pipe systems only. Do NOT use in dry pipe, deluge, or preaction systems. The sudden inrush of in such systems may break the vane or damage the mechanism. not use in potentially explosive atmospheres. Do not allow unused to remain exposed. Of Operation waterflow detectors mount to water-filled pipes in sprinkler sys- Waterflow in the pipe deflects a vane, which produces a switched after a specified delay. All waterflow detectors have a con- delay mechanism. Delays do NOT accumulate; they reset if the of water stops before the entire delay has elapsed. All switches actu- when the water flow rate is 3 gallons per minute or greater. This Sensor installation manual covers the following waterflow detec- for sprinkler/fire alarm applications. Flow Models Pipe O.D. Nominal Wall Thickness (60.3mm) (73.0mm) (76.0mm) (88.9mm) (114.3mm) to 4.5mm to 5.2mm to 4.7mm to 5.6mm to 6.4mm LFD models are approved for use on stainless steel and brass pipe Ohio Avenue, St. Charles, Illinois 60174 FAX: 630-377-6495 Compatibility: LFD waterflow indicators may receive power and operate on a two- initiating zone of a fire alarm control panel. When determining com- of these devices, the standby operating voltage of the control must be between 8.5 and 35 volts. In the standby mode, the LFD a maximum current of 0.3mA. In alarm, the LFD acts as a short the initiating zone (similar to a manual fire box). For two wire fire alarm control panels, not more than 5 waterflow may be connected to a single initiating zone. The maximum time of the waterflow indicator plus the initiating zone shall exceed 90 seconds. two wire addressable control panels, the number of waterflow indi- connected to the panel signaling line circuit shall be limited by the circuit current capacity. Fire Alarm Code of Sprinkler Systems Testing and Maintenance of Sprinkler Systems Guidelines installing any waterflow alarm device, be thoroughly familiar with: 72: 13: 25: 750: Water Mist Fire Protection Systems applicable NFPA standards, local codes, and the requirements of the having jurisdiction methods other than those listed in this installation may prevent the device from reporting the flow of water the event the associated sprinkler system is activated by a System Sensor is not responsible for devices that have been installed, tested, or maintained. Mount the detector where there is adequate clearance for installation removal and a clear view of it for inspections. See Figure 1 for dimensions. Locate detector 6 to 7 ft. above the floor to protect from potential damage. On horizontal runs, position the detector on the top or side of the pipe. not mount it upside down because condensation may collect in the and impair the operation of the detector. For vertical flow mount the detector on pipe