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CIRCLE SEAL CONTROLSATKOMATIC SOLENOID VALVESINSTALLATION,MAINTENANCE,AND OPERATIONINSTRUCTIONSSTAINLESS NORMALLY CLOSED SEMI-DIRECT LIFT VALVES15800 SERIESInstallation InstructionsWARNING:These instructions should be read,understood,and followed before installation.Failure to do this can extremely dangerous and cause valve malfunction.1.An adequate filter system must be installed in the line ahead of each valve to prevent foreign matter fromdamaging the seal faces and/or obstructing the valve orifices causing operational failure and leakage.Amaximum rating of such a filter is 40 microns to provide adequate protection.2.Pipe thread sealing compounds and tape must be prevented from entering the valve.3.New systems must be adequately flushed to remove all pipe scale,weld slag,thread burrs,etc.It istypically necessary to flush new systems several times,removing contamination lodged in filters andother components,until no debris is present.4.Valves must be installed in a horizontal line with the coil oriented up (within+/-10 degrees).5.Mount the valve in the line such that the arrow cast into the valve body is in the direction of flow.6.Check the nameplate and provide the specified voltage to the coil.Voltages must be as specified at thecoil rather than the power supply.This is particularly important with DC applications due to theirtypically high voltage drop through supply lines.All AC coils are for single phase use only.7 Coil housings may be rotated as required to match up with supply wiring.This is done by loosening thehousing nut at the top center of the coil housing,rotating the coil housing assembly,and re-tightening thecoil housing nut.Do not splice the lead wires inside the coil housing.Note:On valves equipped with combination explosion proof and waterproof housings,the siliconeseal bead must be replaced after adjusting the housing to maintain the integrity of the waterproof housing.Note:On valves equipped with explosion proof coil housings it is necessary to use shims to alignthe coil housing.A set of these shims is included with each valve with an explosion proofhousing.The part number for this shim kit is 61427(Atko p/n 229).If the angular alignmentof the coil housing is not important the installation of the shims is not required.
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