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@ PQ!!!Jition VSR-F VANE TYPE WATERFLOW ALARM SWITCH WITH RETARD U.S. Pat. No. 3921989 Canadian Pat. No. 1009680 Other Patents Pending Potter Electric, Rd., 1990 UL, ULCandCSFMListed, FMandLPCBApproved,NYMEA Accepted, CE Marked Service Pressure: Up to 450 PSI (31 BAR) Minimum Flow Rate for Alarm: 10 GPM (38 LPM) Maximum Surge: 18 FPS (5,5 m/s) Contact Ratings: Two sets of SPDT (Form C) 15.0Amps at 125/250VAC 2.0 Amps at 30VDC Resistive Conduit Entrances: Two knockouts provided for 1/2" conduit Environmental Specifications: . Suitable for indoor or outdoor use with factory installed gasket and die-cast housing. . NEMA 4/IP54 Rated Enclosure - use with appropriate conduit fitting. . Temperature Range: 40oF/120oF, 4,50C/490C . Non-corrosive sleeve factory installed in saddle. Caution: This device is not intended for applications in explosive environments. Sizes Available: Steel Pipe schedules 1 0 thru 40, sizes 2" thru 8" BS 1387 pipe 50mm thru 200mm Note: For copper or plastic pipe use Model VSR-CF. Service Use: Automatic Sprinkler NFPA-13 One or two family dwelling NFPA-13D Residential occupancy up to four stories NFPA-13R' National Fire Alarm Code NFPA-72 Optional: Cover Tamper Switch Kit, Stock No. 0090018 GENERAL INFORMATION The Model VSR-F is a vane type waterflow switch for use on wet sprinkler systems. It is UL Listed and FM Approved for use on steel pipe; schedules 10 through 40, sizes 2" thru 8" (50mm thru 200mm). LPC approved sizes are 2" thru 8" (50mm thru 200mm). The unit may also be used as a sectional waterflow detector on large systems. The unit contains two single pole, double throw, snap action switches and an adjustable, instantly recycling pneumatic re- tard. The switches are actuated when a flow of 10 gallons per minute (38 LPM) or more occurs downstream of the device, The flow condition must exist for a period of time necessary to overcome the selected retard period. ENCLOSURE: The unit is enclosed in a general purpose, die- cast housing. The cover is held in place with two tamper resis- tant screws which require a special key for removal. A field in- stallable cover tamper switch is available as an option which may be used to indicate unauthorized removal of the cover. See bulletin no. 5400775 for installation instructions of this switch, INSTALLATION: See Fig.2 These devices may be mounted on horizontal or vertical pipe. On horizontal pipe they should be installed on the top side of the pipe where they will be accessible, The units should not be in- stalled within 6" (15cm) of a fitting which changes the direction of the waterflow or within 24" (60 cm) of a valve or drain. Drain the system and drill a hole in the pipe using a circular saw in a slow speed drill. The 2" (50mm) and 2 1/2" (65mm) devices require a hole with a diameter of 1 1/4" + 1/8" - 1/16" (33mm :t2mm). All other sizes require a hole with a diameter of 2" :1:1/8" (50mm :t2mm). Clean the inside pipe of all growth or other material for a dis- tance equal to the pipe diameter on either side of the hole. Roll the vane so that it may be inserted into the hole; do not bend or crease it. Insert the vane so that the arrow on the saddle points in the direction of the waterflow. Install the saddle strap and tighten nuts alternately to an eventual 50 ft-Ibs, (68 n-m) of torque (see Fig. 2). The vane must not rub the inside of the pipe or bind in any way. Specifications subject to change without notice, PRINTED IN USA Potter Electric Signal Company' 2081 Craig Road, SI. Louis, MO, 63146-4161 . Phone: 800-325-3936/Canada 888-882-1833. www.pottersignal.com PAGE 1 OF 2 MKT, #8800001 - REV W MFG, #5400761 - 7/02