Potter WCS Series Listings 0328-0183

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CALIFORNIA DEPARTMENT OF FORESTRY FIRE PROTECTION OFFICE OF THE STATE FIRE MARSHAL ENGINEERING BUILDING MATERIALS LISTING PROGRAM SERVICE VALVES SWITCHES 1 of 1 Electric Signal Co1609 Park 370 Place Hazelwood MO 63042 United States Brad Serangeli 314 595 6900 Fax 314 595 6999 brads pottersignal com WCS 1 2 in and WCS 3 4 in water column switches Units are an electronic switch used to detect the presence of water that can accumulate or become in the piping directly above the clapper on a Dry Pipe of Pre Action valve The circuitry of the WCS is designed to indicate the presence of water accumulated to specific elevation that if left unattended could impair of prevent the operation of a dry pipe pre action automatic sprinkler valve Refer to listee s data sheet for detailed product and operational considerations VAC psi Maximum working pressure accordance with listee s printed installation instructions applicable codes ordinances in a manner acceptable to the authority having jurisdiction For indoor use only name model number rating and UL label as water column switches for use with fire sprinkler systems The units are to be for indoor use only Refer to Manufacturers Installation Instruction Manual for No jw listing is based upon technical data submitted by the applicant CSFM Fire Engineering staff has reviewed test results and or other data but does not make an independent verification of any claims This listing is not endorsement or verify correct requirements or installation criteria Refer to listee data sheet installation instructions and or other should not be used of This Issued 01 2021 Expires 30 2022 By CASTILLO M E F P E Engineering Division

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