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i <br /> POTTER VSR-S <br /> y ELECTRIC SIGNAL CO. VANE TYPE WATERFLOW <br /> p7061 Craig Road•P o.Go, 28480 .si Loo11.Mo 61146 SWITCH WITH RETARD <br /> H to Toll F,ee(8001325-3936 .(314)818 4371.TWX 9107640909 FOR SMALL PIPE <br /> 39 <br /> t_4 SERVICE PRESSURE UP TO 250 PSI CHARACTERISTICS <br /> y z MINIMUM FLOW RATE FOR ALARM <br /> O x O U.L. I ISTED <br /> mH V 4TO10GPM <br /> N H <br /> [rt DIMENSION: 18.9cm.W x 30.2cm5.5" <br /> D <br /> Lx 30.8cm. D <br /> O H O WEIGHT: 2 lbs. 15 oz. 1.33 kg. <br /> H tea ENCLOSURE:Cast Aluminum <br /> F4 Finished:Red Enamel <br /> H <br /> H CONTACT RATINGS:Two Sets of S.P.D.T. Form C <br /> H H 15.00 Amp.® 125/250V. AC <br /> H 0.50 Amp.® 125V. DC <br /> O c0 rA 0.25 Amp. ®250V. DC <br /> M t" ENVIRONMENTAL LIMITATIONS:40°F/120aF <br /> F3 E4 4.5004900 <br /> USAGE: Schedule 40 Iron 8 Copper Pipe, <br /> Sizes 1', 1 1/4" and 1 1/2". <br /> NOTE: 3 paddles are fumished with each unit, <br /> one for each pipe size. <br /> SIZE SIZE"TEE' FITTING REQ. <br /> 1• 1" x1' x1' <br /> 1 1/4' 1 1/4' Or 1 1/4' x 1' <br /> 1 112' 1 1/2" x 1 1/2' x 1" <br /> i <br /> I S16 No.1111001 Pat.Not.3912247,39219,19&4062377 <br /> �j The Model VSR-S is a vane type waterflow switch for use on device for the direction of walerflow(See Figure 1) <br /> �e wet sprinkler systems that do not have an alarm check valve. <br /> These units may also be used as sectional waterflow detectors The device can also be used In copper pipe installations with <br /> on large sprinkler systems. the proper adapters so that a standard"TEE"fitting may be in- <br /> i 1_1 stalled on the pipe run. <br /> INSTALLATION: These devices may be mounted In a <br /> horizontal or vertical pipe.On horizontal pipe they should be The vane must not rub the inside of the"TEE"or bind in any <br /> Installed on the top side of the pipe where they will be accessi- way.The stem should move freely when operated by hand. <br /> ble.The units should not be Installed wi,hin 6' Inches of a <br /> valve, drain or fitting which changes the direction of the CAUTION:The proper paddle size must be used for <br /> waterflow. the appropriate 1', 1 1/4' or 1 1/2' pipe. <br /> I The unit has a 1' NPT threaded bushing for installation in a FLOW ADJUSTMENT:The small coil spring holds the vane <br /> •4. noncorrosive metal'TEE"fitting. in the normal position against the di rection of the waterflow. <br /> It can be adjusted if necessary to restore the retard fully,but <br /> The ME Jel VSR-S is shipped with a I' paddle Installed.If it do not over-tighten,as this will decrease the sensitivity of the <br /> Is to be used on a 1 1/4'or 1 1/2'pipe,remove the 1'pad- device. <br /> die and Install the correct size paddle. <br /> RETARD ADJUSTMENT: These units have an adjustable <br /> CAUTION: Tighten both screws holding paddle. pneumatic retard to prevent false alarms due to water surges. <br /> Failure to tighten screws could result in loss of pad- The retard is adjustable from 0 to approximately 90 seconds. <br /> die In pipe. <br /> TESTING:Operation of the unit Is checked by opening the <br /> Screw the device Into the'TEE"fitting to an approximate "Inspection Test Valve"attheendofthesprinklerlineortire <br /> depth of 9/16'. Care must be taken to properly orient the drain and test connection. <br /> OULIE71N 735 l OF 2 <br /> 143 <br /> 1 <br />