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iii. Pump event counter <br /> iv. Pump elapsed time meter <br /> v. Magnetic motor contactor <br /> vi. HOA switch <br /> vii. Control circuit fuse <br /> viii. Alarm circuit fuse <br /> ix. Float switch terminal block <br /> x. For each pump, either a: <br /> -Programmable timer with variable controls for setting the on and off <br /> times from .05 seconds to 30 hours, or <br /> - a repeat cycle timer that afford the amount of control needed for pump <br /> run time and off time. <br /> xi. Circuit breaker for each pump <br /> xii. Circuit breaker for the alarm/control circuit <br /> xiii. NEMA 4X Alarm strobe beacon <br /> xiv. NEMA 4X Alarm Horn(83 decibels @ 3' minimum)w/auto reset <br /> xv. NEMA 4X Exterior Horn Test/Normal/Silence Switch <br /> xvi. Ground lug <br /> xvii. 2 Lockable Hasps or one lockable hasp &2 captive screws opposite the <br /> hinges of the NEMA 4X enclosure <br /> xviii. Pump Run light <br /> Controls shall require the pump enable float switch to be activated(minimum <br /> dose volume present)before the start of any pump cycle. Cycles shall be shut <br /> off by the run timer or the low-water cut-off float(not by deactivation of the <br /> enable float). <br /> Approved flow equalization panel models shall be listed on the On-Site <br /> Wastewater Section web page. (http://www.deh.enr.state.nc.us/oww). <br /> f. Alternating duplex or sequencing multiplex pumps are required for any system <br /> with 3000 gallons or more per any 24-hour flow period(Q>3000 gallons), the <br /> system requires 2000 linear feet or more of nitrification line, or the equalized <br /> daily flow is 1500 gallons or greater. The control panel shall meet the additional <br /> requirements of.1952 (c)(7) and include a programmable timer for each pump. <br /> The control panel shall be designed to sequence dosing events between pumps. <br /> The HOA switches in duplex and multiplex panels shall enable the operator to <br /> shut off one or more fields with the fields remaining in service dosed <br /> automatically, sequentially and uniformly. <br /> g. Remote alarms and telemetry may be specified on a system-specific basis. <br /> h. The control panel shall be mounted within 10 feet of the pump tank and at a <br /> height to allow the Operator in Responsible Charge (ORC) to easily adjust and <br /> observe the timer control device and other appurtenances of the control panel <br /> (e.g., center of box to be 3 to 5 feet above finished grade). <br /> 4 <br /> 104 <br />