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CITY OF SANTA ANA <br />SPECIFICATIONS <br />PROJECT NO.: XX-XXXX <br />PROJECT TITLE <br /> <br />113 <br />I. FLOW METER <br />1. The flow meter is installed after the backflow preventer and before the mas ter <br />control valve. Verify distance between flow meter and master valve with Engineer <br />prior to installation. <br />2. The flow meter shall be installed on the pipe assembly with the intended direction <br />of the flow as indicated by an arrow on top of the flow meter, and per <br />details/plans. <br />3. There must be free, unrestricted pipe of the same size as the meter for at least 10 <br />flow meter diameters upstream and 5 flow meter diameters downstream of the <br />flow meter tee; or from any valve, fitting, meter, or backflow preventer. Meter <br />size per installation details on plans and notes. <br />4. The flow meter shall be easily accessible, housed in a valve box specified on <br />plans and marked "F.M." "M.C.V.". <br />5. Electrical for flow meter: <br />a. Wires from the flow meter to the controller shall consist of one (1) black and <br />one (1) red THWN/THHH U.I. approved, AWG number 14 solid strand <br />copper wire. <br />b. All wiring to be continuous without splices from the irrigation controller to <br />the flow meter. <br />c. All wiring shall be installed in conduit from the flow meter to the controller. <br />d. The flow meter runs off of 9 volts DC. The flow meter wires shall be <br />separated from other signal wires when pulled at the controller site. (If 24 <br />volts AC is used to test field wires when determining proper sequencing, and <br />is applied to the flow meter wires, the sensing unit in the flow meter will be <br />damaged.) <br />e. It is very important that all splices are dry splices. Any water leaking into a <br />splice will cause flow meter problems. <br />f. There shall never be any buried splices in ground between the flow meter and <br />the controller. <br />J. MASTER CONTROL VALVE <br />1. Control valve shall be installed on pipe assembly after the flow meter as shown on <br />the installation detail drawings. <br />2. Valve size per installation notes and details on plans. <br />505 E Central Ave <br />#B11/6/2024