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(E)POTTER <br />The Symbol of Protection <br />Features <br />• NEMA 4X* (IP 65) and 6P (IP 67) <br />*Enclosure is 4X. For additional corrosion protection of <br />mounting hardware, use model OSYSU-2 CRH <br />• -400 to 1400 (-40°C to 60°C) operating temperature range <br />• Visual switch indicators <br />• Two conduit entrances <br />• Adjustable length hip rod <br />• Accomodates up to 12AWG wire <br />• Three position switch detects tampering and valve closure <br />• Knurled mounting bracket prevents slipping <br />• Fine adjustment feature for fast, easy installation <br />• ROHS compliant <br />• One or two SPDT contact models (-1,-2) <br />Before any work is done on the fire sprinkler or fire alarm system, the <br />building owner or their authorized representative shall be notified. <br />Before opening any closed valve, ensure that opening the valve will not <br />cause any damage from water flow due to open or missing sprinklers, <br />piping, etc. <br />OSYSU Series <br />Outside Screw and Yoke Value <br />Supervisory Switch <br />101 o OCE <br />usreo APPROM <br />Important: This document contains important information on the installation and operation of OS&Y valve supervisory switches. Please read all <br />instructions carefully before beginning installation. A copy of this document is required by NFPA 72 to be maintained on site. <br />Description <br />The OSYSU is used to monitor the open position of an OS&Y <br />(outside screw and yoke) type gate valve. This device is available in <br />two models; the OSYSU-1, containing one set of SPDT (Form C) <br />contacts and the OSYSU-2, containing two sets of SPDT (Form C) <br />contacts. These switches mount conveniently to most OS&Y valves <br />ranging in size from 2" to 12" (50mm to 300mm). They will mount <br />on some valves as small as U" (I2,5mm). <br />The cover is held in place by two tamper resistant screws that require <br />a special tool to remove. The tool is furnished with each device. <br />Testing <br />The operation of the OSYSU and its associated protective mormoring <br />system shall be inspected, tested, and maintained in accordance <br />with all applicable local and national codes and standards and/or the <br />Authority Having Jurisdiction (manufacturer recommends quarterly <br />or more frequently). A minimum test shall consist of tinning the valve <br />wheel towards the closed position. The OSYSU shall operate within <br />the first two revolutions of the wheel. Fully close the valve and ensure <br />that the OSYSU does not restore. Fully open the valve and ensure that <br />the OSYSU restores to normal only when the valve is fully opened. <br />A CAUTION <br />Close the valve fully to determine that the stem threads do not <br />activate the switch. The switch being activated by the stem threads <br />could result in a false valve open indication. <br />Technical Specifications <br />Dimensions <br />See Fig 8 <br />Weight <br />1.6 lbs (0,73 kg) <br />Cover: Die Cast Finish: Red Powder Coat <br />Enclosure <br />Base: Die Cast Finish: Black Powder Coat <br />All parts have corrosion resistant finishes <br />Tamper Resistant Screws <br />Cover Tamper <br />Optional Cover Tamper Switch Available <br />OSYSU-1 : One Set of SPDT (Form C) <br />OSYSU-2 : Two Sets of SPDT (Form C) <br />Contact <br />10.0 Amps at 125/250 VAC <br />Ratings <br />2.0 Amps at 30VDC Resistive <br />10 mAmps minimum at 24 VDC <br />-400 F to 140OF (-40°C to 60°C) <br />Environmental <br />NEMA 4X (IP 65) andNEMA 6P (IP 67) Enclosure <br />Limitations <br />(Use suitably rated conduit and connector) <br />Indoor or Outdoor Use (See OSYSU-EX Bulletin <br />5400705 for Hazardous locations) <br />Conduit <br />Two Knockouts for 1/2" conduit provided <br />Entrances <br />(See Notice on Page 6 and Fig. 9 on Page 5) <br />Service Use <br />NFPA 13, 13D, 13R, 72 <br />Specifications subject to change without notice <br />Potter Electric Signal Company, LLC • St Louis, MO • Tech Support 866-956-0988 / Customer Service: 866-572-3005 • www.pottersign al.com <br />5401525 -REV G • 6/19 PAGE 1 OF <br />