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I <br /> � i <br /> k <br /> Electrical Work <br /> WARNING Reduced risk of electne shock during operation of this pump requires the <br /> provision of acceptable grounding If the means of connection to the supply connected box <br /> Is other than grounded metal conduit, ground the pump back to the service by connecting a f <br /> copper conductor(at least the size of the circuit supplying the pump)to the grounding screw <br /> provided within the wiring compartment <br /> i <br /> s ' <br /> r r <br /> ; Checklist <br /> I <br /> 1. Well Preparation <br /> If the pump is to be installed In a new well then the well should be fully developed and bailed <br /> or blown free of cuttings and sand The stainless steel construction of the GRUNDFOS <br /> submersibles make it resistant to abrasion, however, no pump made of any material can <br /> forever withstand the destructive wear that occurs when constantly pumping sandy water <br /> If this pump is used to replace an oil-filled submersible or oil lubricated line shaft turbine In i <br /> an existing well,the well must be blown or balled clear of oil I <br /> f <br /> 2. Make Sure You Have The Right Pump ? <br /> Determine the maximum depth of the well, and the draw down k <br /> level at the pump's maximum capacity Pump selection and <br /> setting depth should be based on this data <br /> 3. Pumped Fluid Requirements �sa� <br /> CAUTION Submersible well pumps are designed for pumping <br /> clear,cold water,free of air or gases Decreased pump < r <br /> performance and life expectancy can occur if the water Is not <br /> cold, clear or contains air or gasses Water temperature should <br /> not exceed 102°F <br /> A check should be made to ensure that the installation depth of <br /> the pump will always be at least three feet below the maximum <br /> drawdown level of the well The bottom of the motor should never <br /> be installed lower than the top of the screen or within five feet of <br /> the well bottom <br /> i <br /> Ensure that the requirement for minimum flow past the motor is <br /> met, as shown in the table below <br /> Minimum water Flow Requlrements for <br /> Submersible Pump Motors NOTES <br /> MINIMUM CASING OR SLEEVE MEN GPM FLOW a For Franklin Motors Only A flow inducer or sleeve must be <br /> DIAMETER I o IN INCHES PASSING THE MOTOR used if the water enters the well above the motor or it <br /> there is unsuffiGent water flow past the molar <br /> 4 Inch 4 1 2 b For Franklin Motors Only The minimum water velocity <br /> 5 7 over 4 motors is 0 25 feet per second <br /> 6 13 c Grundfos 4"submersible motors do not require a mmtmum <br /> 7 21 flow or flaw sleeve <br /> I 8 30 <br /> Page i � ' <br /> Page 14 <br />