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Q: What items are to stay in respect to the chlorinators? <br />A: Scales and terminators stay. Replace current S 1 OK monitoring with V 1 OK. <br />Comment: North Cleveland PLC's junction box has plenty of room for new PLC unlike the <br />tight space at South Cleveland. <br />Q: Any preference on mounting style for the Hach CA-610? <br />A: No preference. <br />Comment: Please include pricing for shop drawings for newly installed controllers. <br />Additions: <br />DESCRIPTION OF WORK <br />A. Prevailing Specifications: None <br />B. Additions: <br />Work to be performed shall include: the procurement, installation, and programming of <br />PLCs in the North Cleveland and South Cleveland well fields; the procurement, <br />installation, and programming required to integrate the Hach CA-610 fluoride analyzer <br />with reagents into SCADA PLC in the North Cleveland and South Cleveland well fields; <br />and the procurement, installation, and programming of two (2) V10K chlorinators in the <br />South Cleveland well field and aM:1:: r natlia&y 11wo::o () V°M°< cNlou°iinak'iiu"s at II'',Jouth CIlev6an d, <br />All work shall be coordinated with a representative from Water Works. <br />V10K CHLORINATORS <br />A. Prevailing Specifications: None <br />B. Additions: <br />1. Two (2) V1 OK chlorinators shall be replaced at the South Cleveland Station. All eu uno:otiiaow,lly, <br />two (2) V10K choouiiunalko.ous shal1 Iles uelp1ao`,ea at Ilhe Noulh t�.�kDveVanoll Stall'coa. They shall be <br />of the Wallace & Tiernan V1 OK Automatic System with SFC-SC Controls with 100# or 150# <br />Rate tubes with a V-notch. <br />2. Installation of the V10K chlorinators shall require the removal of the current S10K system <br />at South t;:,;:Ieve�au"Id StaliJ on. A WaterWorks representative shall inspect the system prior to <br />removal. All cost of removal shall be considered incidental to all other work relating to the <br />procurement, installation, and programming of the chlorinators. <br />3, kistaUatuon of the t ttt< eNlo,ouJnao o m shaIIII ro.o ua R:, tlhEu ueirnoval of the cu.,unrent o:olMeii °Itull�'„ <br />sy,,biniu all V°wtroi1h (_'1eveo and Stall'uommou°n. Wet Ttttto Hullos u°o;lpi e auntatuv sIlhefl1 insl��)ectthe sy,,ktein <br />l rk'u a°'te ueuuuo:oau V AI1 costof remo:ovall oulhal1 Ilsoo �.; )nsi teied unciidoontM 11ro all1 otlherwo:odk uo,V liliu°,,t,l <br />too tlhE, a rcu,uu°euu'ne nt, iiu°nsllaNl[aflo:vun, and Ilouo gi auonnio n,r of the el.nlloo,° nato:om <br />4. The South Cleveland station has 120 V power, but will need a four -prong reset addition to <br />supply power. <br />5. Each chlorinator shall be controlled from SCADA using a hardwired 4-20 mA signals from <br />the PLC. <br />6. Discrete monitoring signals shall be connected to SCADA using hardwired circuits. <br />7. Electrical conduit shall have a minimum of 3/" rigid galvanized steel (RGS) for non- <br />corrosive areas and a minimum of 3/" Schedule 40 PVC for corrosive areas. <br />8. Type 600 V, single conductor, type XHHW for power and discrete signals for electrical <br />wiring shall be used. Single pair instrumentation cables to be Belden 8719 or Owner <br />approved equal. <br />9. Control cables and power cables shall be supplied in separate conduits. <br />