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CP� POTTER PS40 SERIES <br /> The Symbol of Protection PRESSURE SWITCH <br /> Dimensions Switch Clamping Plate Terminal <br /> Fig. 1 Fig.2 <br /> GROUND <br /> 00 SCREWSG04y0 <br /> 2.87 <br /> ADJUSTMENT � � [72.97] � VO <br /> KNOB ® 4.22 <br /> [107.19] <br /> 1/2"NPT _41 1 Go".10 d DWG#923-3 <br /> 2.48 1.60 <br /> 162.871 [40.641 <br /> 3.78 3.20 <br /> [95.891 [81281 A WA R N I N G <br /> NOTE.:To prevent leakage,apply Teflon tape sealant to male threads only. <br /> An uninsulated section of a single conductor <br /> DWC#930-1 should not be looped around the terminal and <br /> serve as two separate connections. The wire <br /> must be severed,thereby providing supervision <br /> of the connection in the event that the wire <br /> becomes dislodged from under the terminal. <br /> Typical Sprinkler Applications <br /> Fig.3 <br /> PS40 <br /> A CAUTION <br /> AIR LINE <br /> SHUT-OFF BLEEDER Psio Closing of any shutoff valves between the <br /> VALVE TEST ALARM <br /> cxEcx VALVE PRESSURE <br /> alarm check valve and the PS 10 will render <br /> VALVE BVL SWITCH the PSI 0 inoperative.To comply with NFPA- <br /> WATER 72 any such valve shall be electrically <br /> � MOTOR <br /> GONG supervised with a supervisory switch such as <br /> CHECK RBvs Potter Model RBVS. <br /> DRY PIPE VALVE <br /> VALVE <br /> WATER <br /> DWG.#924-1A OS&Y BY-PASS <br /> VALVE TEST <br /> VALVE <br /> Typical Connections <br /> Fig.4 <br /> WITH NORMAL SYSTEM PRES- PS40-1 PS40-2 <br /> SURE APPLIED LOW-TERMINAL 2 <br /> CLOSES ON PRESSURE DROP. <br /> TO FIRE <br /> ALARM <br /> PANEL HIGH <br /> COM 1 2 � AIR <br /> r\ 2 1 COM <br /> LOW WITH NORMAL SYSTEM <br /> AIR PRESSURE APPLIED HIGH <br /> TO FIRE EOLR TERMINAL 1 WILL CLOSE <br /> ALARM ON PRESSURE INCREASE. <br /> PANEL <br /> mEOLR <br /> DWG#930-2 <br /> PRINTED IN USA MFG.#5400930-REV D PAGE 2 OF 3 <br /> 1/08 <br />