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CONTROL MOUNTING <br />The control assembly contains flow restrictors for a PV -90 <br />softener. Before mounting the control to the tank, refer to <br />Table 2 to determine which flow restrictors are required for <br />your unit. NOTICE: Refer to the specifications for tank size <br />(pages 3-4) to determine the unit number. <br />Change the backwash flow restrictor only for the 12 -inch <br />softeners; PV -30B and PV -45 A/B. To change the restrictor: <br />1. Remove the drain fitting retaining clip (Fig. 10), then <br />pull out the drain fitting. <br />2. Pull out the larger ID flow restrictor and insert the smaller <br />ID flow restrictor (packed in the small parts pack). <br />NOTICE: To ensure a good seal, the side of the restrictor <br />with identification numbers should face into the valve, <br />with the smooth side facing out. <br />3. Lubricate the O-ring on the drain fitting with a silicone - <br />TABLE 2 - FLOW RESTRICTIONS <br />based lubricant, wen reinstall the fitting. NOTICE: If <br />the optional drain fitting kit, PN 00-4477-82, is to be <br />used, install the kit at this time. <br />4. Secure the drain fitting with the retaining clip. <br />To change the eductor nozzle and throat: <br />1. Remove the three screws from the top of the eductor <br />plate. Lay the plate screws aside. <br />2. Using a pair of pliers, pull the eductor screen and <br />eductor nozzle (Fig. 11) from the valve, then pull the <br />eductor throat from the valve (Fig. 12). <br />3. Examine all three O -rings for cuts. Replace as needed. <br />4. For 12 -inch diameter units only, transfer the two O -rings <br />from the blue eductor throat to the gray eductor throat <br />(packed in the small parts pack). <br />UNIT <br />BACKWASH <br />FLOW <br />NOZZLE <br />PV -45 <br />3.5 gpm (13.2 Ipm) <br />Light Brown <br />PV -60 <br />5.5 gpm (20.8 Ipm) <br />Green <br />PV -90 <br />5.5 gpm (20.8 Ipm) <br />Yellow' <br />PV -120 <br />5.5 gpm (20.8 Ipm) <br />Black <br />PV -135 <br />5.5 gpm (20.8 Ipm) <br />Red <br />*Standard from factory. <br />In <br />RETAINING <br />CLIP <br />im <br />FIG. 10 <br />BRINE REFILL <br />THROAT FLOW <br />Light Brown 0.8 gpm (3.0 Ipm) <br />Blue 0.8 gpm (3.0 Ipm) <br />Blue" 0.8 gpm (3.0 Ipm) <br />Blue 1.4 gpm (5.3 Ipm) <br />Blue 1.4 gpm (5.3 Ipm) <br />FIG. 11 <br />INSTALLATION / 11 <br />EDUCTOR <br />PLATE <br />FIG. 11 <br />INSTALLATION / 11 <br />