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@ParTER <br />The Symbol of Protection <br />Testing and Adjustment <br />PS10 Series <br />Pressure Switch <br />NOTE: Testing the PSI may activate other system connected devices. The operation of the pressure alarm switch should be tested upon completion of <br />installation and periodically thereafter in accordance with the applicable NFPA codes and standards and/or the authority having jurisdiction (manufacturer <br />recommends quarterly or more frequently). There should be no need to adjust the PS 10 when it is used as a pressure type waterflow indicator. It is factory set <br />to comply with UL and FM standards. <br />Wet System <br />Method 1: When using PS10 and control unit with retard - connect PS10 into alarm port piping on the input side of retard chamber and electrically <br />connect PS10 to control unit that provides a retard to compensate for surges. Insure that no unsupervised shut-off valves are present between the alarm <br />check valve and PSI 0. <br />Method 2: When using the PS10 for local bell application or with a control that does not provide a retard feature - the PSI must be installed on the <br />alarm outlet side of the retard chamber of the sprinkler system. <br />Testing: Accomplished by opening the inspector's end -of -line test valve. Allow time to compensate for system or control retard. <br />NOTE., Method 2 is not applicable for remote station service use, if there is an unsupervised shut-off valve between the alarm check valve and the PSI 0. <br />Wet System With Excess Pressure <br />Connect PS10 into alarm port piping extending from alarm check valve. Retard provisions are not required. Insure that no unsupervised shut-off valves <br />are present between the alarm check valve and the PS10. <br />Testing: Accomplished by opening the water by-pass test valve or the inspector's end -of -line test valve. When using end -of -fine test, allow time for <br />excess pressure to bleed off. <br />Dry System <br />Connect PS 10 into alarm port piping that extends from the intermediate chamber of the alarm check valve. Install on the outlet side of the in -line check <br />valve of the alarm port piping. Insure that no unsupervised shut-off valves are present between the alarm check valve and the PSI 0. <br />Testing: Accomplished by opening the water by-pass test valve. <br />NOTE., The above tests may also activate any other circuit closer or water motor gongs that are present on the system. <br />Dimensions <br />Fig I <br />ADIUSTMENT <br />KNOB <br />1/2" NPT <br />2,48 <br />[62,87] <br />3.98 — <br />[95.89] <br />GROUND <br />289 SCREWS <br />[72,97] <br />4,22 <br />[109.19] <br />1,60 <br />[4Q64] <br />3,20 <br />[8128] <br />NOTE. To prevent iealvage, apply Teflon tape sealant to male threads only. <br />.se e ssa � <br />Switch Clamping Plate Terminal <br />Fig 2 <br />0Utgc <br />AAWMNING <br />M uninsulated section of a single conductor should not be looped around the <br />terminal and serve as two separate connections. The wire must be severed, <br />thereby providing supervision of the connection in the event that the wire <br />becomes dislodged from under the terminal. <br />Potter Electric Signal Company, LLC St. Louis, MO Phone: 800-325-3936 www.pottersignal.com <br />5400928-REVE • 2/20 PAGE 2OF4 <br />