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POTTER PSIO SERIES <br />The Symbol of Protection PRESSURE SWITCH <br />o.1 1 f2 <br />J• Pa 10_2 O <br />Ordering Information <br />Model Description <br />Stock No. <br />PSIO-I Pressure switch with one set <br />1340103 <br />SPOT contacts <br />PS 10-2 Pressure switch with two sets <br />1340104 <br />SPDT contacts <br />Hex Key <br />5250062 <br />Cover Tamper Switch Kit <br />0090200 <br />Tamper <br />Cover incorporates tamper resistant fastener that requires a special key for <br />removal. One key is supplied with each device. For optional cover tamper <br />switch kit, order Stock No OO90200 See bulletin #5401200 PSCTSK <br />UL, cUL, and CSFM Listed. FM and LPC Approved, NYMEA <br />Accepted, CE Marked <br />Dimensions: 3.78"(9,6cm Wx3.20"(8,Icm)Dx 4.22"(10,7em)H <br />Conduit Entrance: Two knockouts provided for 12" conduit. Individual <br />switch compartments and ground screws suitable for <br />dissimilar voltages. <br />Enclosure: Cover - Die-cast with textured red powdercoat finish, single <br />cover screw and rain lip. <br />Base - Die-cast <br />Pressure Connection: Nylon 12" NPT Male <br />Factory Adjustment: 4 -8 PSI (0,27 -0.55 BAR) <br />Differential: 2 PSI (0,13 BAR) typical <br />Maximum System Pressure: 300 PSI (20,68 BAR) <br />Switch Contacts: SPDT (Form C) <br />10.1 Amps at 125250VAC, 2.0 Amps at 30VDC <br />One SPOT in PS 10.1. Two SPDT in PS 10.2 <br />Environmental Specifications: <br />NEMA 41IP66 Rated Enclosure - indoor or outdoor when used <br />with NEMA 4 conduit finings. <br />Temperature range: 40"F to 140"F (-40°C to 60"C) <br />Sers'ice Use: <br />Automatic Sprinkler <br />NFPA-13 <br />One or two family dwelling <br />NFPA-13D <br />Residential Occupancy up to four stories <br />NFPA-13R <br />National Fire Alarm Code <br />NFPA-72 <br />Installation <br />The Potter PS 10 Srnes Pressure Actuated Switches are designed for the into alarm port piping on the input side of retard chamber and electrically <br />detection of a watet5ow condition in automatic fire sprinkler systems of connect PSIO to control unit that provides a retard to compensate for surges <br />particular designs such m wet pipe systems with alarm check valves, dry Insure that no unsupervised shut-off valves are present between the alarm <br />pipe, preaction, or deluge valves. The PSIO is also suitable to provide a check valve and PS 10. <br />low pressure supervisory signal; adjustable between 4 and 15 psi (0,27 and Atethod 2. When using the PSIO for local bell application or with a control <br />1.03 BAR), that does not provide a retard feature - the PS 10 must be installed on the alarm <br />I. Apply Teflon tape to the threaded male connection on the device. outlet side of the retard chamber of the sprinkler system. <br />(Do not use pipe dope) Testing. Accomplished by opening the inspector's end-of1ure test valve. <br />2. Device should be mounted in the upmdd position (threaded connection down) Allow time to compensate for system or control retard. <br />3. Tighten the device using a wrench on the Oats on the device Note Method 2 is not applicable for remote station service use, ifthere is.m <br />unsupervised shut-off valve between the alarm check valve and the PSIO <br />Wiring Instructions <br />I. Remove the tamper resistant screw with the special key provided <br />2 Cn efully place a screwdriver on the edge of the knockout and <br />sharply apply a force sufficient to dislodge the knockout plug See Fig 9 <br />3 Run wires through an approved conduit connector and affix the connector <br />to the device. <br />4 Connect the wires to the appropriate terminal connections for the <br />service intended. See Figures 2 4,5, and 6. See Fig 7 for two switch, one <br />conduit wiring. <br />Testing <br />The operation of the pressure alarm switch should be tested upon completion <br />of installation and periodically thereafter in accordance with the applicable <br />NFPA codes and standards and/or the authority having jurisdiction <br />(manufacturer recommends quanerly or more frequently). <br />Wet System <br />Afethod t: When using PSIO and control unit with retard - connect PSIO <br />Wet System With Excess Pressure <br />Connect PS10 into alarm port piping extending from alarm check valve. <br />Retard provisions are not required. Insure that no unsupervised shut-off <br />valves are present between the alarm check valve and the PSIO <br />Tesocg Accomplished by opening the water by -pus test valve or the <br />inspectors end -of -lure test vvlve. When using end-of-lmc test, allow time <br />for excess pressure to bleed off <br />Dry System <br />Connect PSIO into alarm part piping that extends from the intermediate <br />chamber of the alarm check valve. Install on the outlet side of the in-Ime <br />check valve of the alarm port pipit¢. Insure that no unsupervised shut-off <br />valves are present between the alarm check valve and the PSIO. <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 <br />motor gongs that are present on the system. <br />Potter Electric Signal Company, LLC • St Louis, MO • Phone 866-956.09881Canada SRS-982-1833 • wwwpoitersignal com <br />I6 - <br />PRINTED IN USA MFG 45400929-REV D i <br />12no <br />