Potter PIVSU-EX Explosion Proof Post Indicator Valve Switch

Features NEMA 1 7 9 For use in hazardous locations I Div 1 2 Groups C D II Div 1 2 Groups E F G proof switch enclosure Adjustable length trip rod Ample wiring space Compliant Listed file E14274 Certified File LR57324 EX Approved File KEMA 04ATEX2312X any work is done on the fire sprinkler or fire alarm system building owner or their authorized representative shall be notified opening any closed valve ensure that opening the valve not cause any damage from water flow due to open or missing piping etc PIVSU EX is designed to supervise the position of a Post Indicator Butterfly valve in hazardous locations The device mounts in a 1 2 threaded nipple to the valve body When properly mounted the of the Post Indicator valve or the operating mechanism of Butterfly Valve will be pushing against the return spring of the so that as the valve is operated the spring in the PIVSU pulls the trip rod over and activates the switch To aid with the trip rod length is adjustable This device features a UL explosion proof switch enclosure operation of the PIVSU EX and its associated protective system shall be tested upon completion of the installation inspected tested and maintained in accordance with all applicable and national codes and standards and or the Authority Having manufacturer recommends quarterly or more frequently minimum test shall consist of turning the valve operating mechanism the closed position The PIVSU EX shall operate within the two revolutions of the operating mechanism Fully close the valve ensure the PIVSU EX does not restore Fully open the valve and that the PIVSU EX restores to normal This document contains important information on the installation and operation of valve supervisory switches Please read all instructions before beginning installation A copy of this document is required by NFPA 72 to be maintained on site Specifications Fig 9 lbs 0,97 kg Enclosure Aluminum Stainless Steel set of SPDT Amps at 125VAC Amps at 125VDC accept up to 14AWG wire to 140 40 to 60 I Div 1 2 Groups C D II Div 1 2 Groups E F G 1 7 9 1 2 14 NPT threaded entrance NPT Use subject to change without notice 13 13D 13R 72 PAGE 1 OF 7 Proof Post Indicator and Butterfly Valve Supervisory SwitchMFG 5400694 REV S 8 15Potter Electric Signal Company LLC St Louis MO Tech Support 866 956 0988 Customer Service 866 572 3005 www pottersignal comfirealarmresources com Of Operation PIVSU EX is a spring loaded switch It is in normal position when the trip rod is pulling against the spring force Normal is when the switch installed on the valve and the valve is fully open As the valve closes the valve actuator moves away from the trip rod of the PIVSU EX and the on the PIVSU EX pulls the trip rod over and trips the switch Window Installation and Moving Hood Installation 1 2 Moves Up as Valve is Shut Moves Down as Valve is Shut to the approval of the having jurisdiction the method of installation shown in Fig 1 may be used In this one of the glass windows of the housing is replaced with a thick metal plate that is cut to fit in place of the glass and drilled tapped to recieve 1 2 NPT pipe nipple In some cases it may be to attach an angle bracket to the target assembly to engage PIVSU EX trip rod the target is stationary and a hood arrangement is used such as shown in Fig 2 the hood must be drilled with a 23 32 drill and with a 1 2 NPT The center line of this hole should be 1 8 the portion of target assembly that strikes the PIVSU EX trip The 11 3 8 dimension shown is for a Clow Valve Flexible must be used for this type of installation More on pg 3 Tripping Block Open Marker Plate Replaces Glass Marker Assembly 3 8 cm PAGE 2 OF 7 Proof Post Indicator and Butterfly Valve Supervisory SwitchMFG 5400694 REV S 9 15Potter Electric Signal Company LLC St Louis MO Tech Support 866 956 0988 Customer Service 866 572 3005 www pottersignal comfirealarmresources com Installation On Post Indicator Valve Housing Valve Installation 3 Valve Installation 4 moves up valve is shut moves down valve is shut Position the valve to fully open should appear in window of the housing Partially close the valve while the direction that the target assembly moves the valve If the valve housing is predrilled with a NPT for installation of a monitoring switch remove the plug and fully open the valve Make sure that in the window of the housing GO TO STEP NO 6 the valve is not pre drilled for 1 2 NPT remove the head target assembly consultation with valve manufacturer is the target assembly moved up as the valve was closed the distance from the bottom of the head to the part of the target assembly that will contact the trip of the PIVSU EX see Fig 3 This is usually a plate or on the target assembly on a side adjacent to the plates Subtract 1 8 from the measurement If target moved down as the valve was closed measure distance from the bottom of the head to the upper of the target assembly that will contact the trip rod the PIVSU EX see Fig 4 Add 1 8 3,2mm to this Mark the housing at the proper location Using a 23 32 drill bit drill and then tap a 1 2 NPT in the on the side that coincides with the portion of the assembly that will engage the trip rod of the PIVSU Replace the head and target assembly a scale or probe into the valve housing to measure distance from the opening on the valve to the target Subtract from this measurement Adjust the trip lever of the PIVSU EX so the trip lever past the end of the nipple by the distance measured step 6 Include the subtraction In some instances it be necessary to remove the trip lever and using a pliers off the 1 long notched section See fig 10 Partially close the valve 4 revolutions Screw the PIVSU EX into the valve body until it is oriented tighten the jam nut The spring loaded trip lever of PIVSU EX follows the valve target as it moves when the is operated Proper orientation is with the rectangular body parallel with the valve housing and the target of valve pushing against the spring force of the PIVSU EX lever when the valve is fully open Adjust the trip lever if necessary Carefully open the valve to the fully open position As the moves to the open position it should engage the trip and actuate the switch There should be a minimum of 1 2 revolution of the handle hand wheel the switch actuates a continuity meter connected to switch contacts is one method that could be used to this Slowly close the valve The switch must operate during the two revolutions of the handle hand wheel or during 1 5 the travel distance of the valve control apparatus from its condition Small adjustments of the target position may be necessary with valve manufacturer is recommended Complete the required electrical wiring connections and The valve should be operated through the entire cycle fully closed and fully open to determine the integrity of PIVSU EX installation and the signaling system Check all electrical and mechanical connections are secure When the installation and testing are complete return valve its proper position PAGE 3 OF 7 Proof Post Indicator and Butterfly Valve Supervisory SwitchMFG 5400694 REV S 9 15Potter Electric Signal Company LLC St Louis MO Tech Support 866 956 0988 Customer Service 866 572 3005 www pottersignal comfirealarmresources com 5 Indicating Butterfly Valve 6 Indicating Butterfly Valve Installation on a Butterfly Valve mm Partially Closed Open