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n <br />u <br />0 <br />POT ER <br />The Symbol of Protection <br />Law Pressure Signal Connection <br />Fig i <br />To ran ALARM MVEL <br />V <br />Changing Pressure <br />( With romial system pressure) <br />Fig. 8 <br />Terminal LOW PRESSURE SWITCH <br />C Common <br />I Closed x henmct.4d <br />urea normal Sysmm <br />Open O <br />h Open o <br />noon sulkd <br />ornormal normD'tsem <br />pressure Clo,eten c I <br />pressuredmp Use far <br />lax err "Final <br />------------------------------ <br />Terminal HIGH PRESSURE SW ITCH <br />pen <br />llcd <br />I. pressure n:mrs on <br />under normal sysem <br />pressure Closers on <br />Merritt in measure <br />Use fur loin an "put <br />2 Closed under normal r <br />sy tens pressure <br />nxt.nu t <br />ddigh Pressure Signal Connection <br />Fig 6 <br />Removing Knockouts <br />Fig 9 <br />Engineer/Architect Specifications Prescurt I%pe"attrflost Switch <br />Pressure type supervisory Switches, sholI be a Model PS40 as manufactured by <br />Power Elaine Signal Company, St Lewis. MO., and shall be meullcd on the fir, <br />sprinkler system as shown and or specified licrem <br />Smuchts shall by provided with a IR' NPf "tale pressure connection to be <br />connected into pit: air supply lint on 0¢ system side of any shut elf rater A <br />Model BVL blcaler valve as supplied by Power Electric Sigrid Company of SI <br />Louis, MO. or equivalent shall be connected in line with the PS40 to provide a <br />means of testing the operation of the supervisory switch, (See Fig 3) <br />v s'aa•x5.I <br />1PS40 SERIES <br />SUPERVISORY PRESSURE SWITCH <br />One Conduit Wiring <br />Fig 7 <br />Break out thin sauna of divider to provide path for .eves <br />when ... not both swatches from one conduit entrance <br />The switch unit shall contain SPOT (form C) switch(es) One switch shall be <br />set to operate at a pressure decrease of 10 PSI (0,7 BARI from normal If two <br />catches we provided, the second swatch sliall be set to operate at a pressure A CA U T I 0 N <br />increase of 10 PSI (0.7 BAR) from normal <br />!;witch contacts shall he led a110 1 Amps at 125/250VAC and 2 0 Amps at -Do not rich ten by paring the ax itch mcloswe Use x-renchmp Rs¢ un tba bushmq <br />30VDC The units shall have a maximum pressure sung of 300 PSI (20,63 BAR) only Failure to Install properly could damage (lie sx itch and cause Improper operator, <br />and shall be adjustable fiom 10 to 60 PSI (0,7 to 4,1 BAR) rtaulung m damage to egwpercut and prop" <br />Pressure switches shall have two conduit entrances, one for each mdotdual swnah -To seal thrcods, apply Teflon tape to ..It threads only. Utmgjwmmeopoundser <br />comparuncrl to facilitate the ace o(dnsimds voltages for each individual switch cemem can obstruct the Pressure pon inlet and result in improper dn'ae operation and <br />damage to equipment <br />The coves of the pressure swatch shall be zme diM15i with tarn hp ud shall ana<h -Do not ottr nghtm the deuce, slandard piping practices apply <br />with one um per resistant screw The pressure Switch shall be suitable for indoor or .Da not apply any lubncant to any component of the pressure twitch <br />outdoor service with a NEMA-4tgP66 rating <br />The pressure swatch shall he 1_1. L1C, and CSFM listed. FM and LPC approved <br />and NYhfEA accepted - <br />PRINTED IN USA I.IFG 954009311 REV F PAGE 3 OF 3 \ <br />09;17 r 1 <br />I <br />