ARCHIVED REPORTS XR0007814 - Laserfiche WebLink

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1Pre-Installation B. Condition of the Water Redi Flo4 pumps are designed for pumping cold groundwater that is free of air or gases Decreased pump performance and life expectancy can occur if the groundwater is not cold or conlams air or gases C. Installation Depth Pumping sand or well sediment can occur when the pump motor is installed lower than the top of the well screen or within five feet of the well bottom This can reduce the performance and life expectancy of the pump and should be avoided If the pump is to be installed in a lake,containment pond,tank or large diameter well, the water velocity passing over the motor must be sufficient to ensure proper motor cooling The minimum recommended water flow rates which ensure proper cooling are listed in Table A D. Electrical Supply The motor voltage,phase and frequency indicated on the motor nameplate should be checked against the actual electrical supply CableWire . The wire cable used between the pump and control box or panel should be approved for submersible pump applications The conductor insulation should have a continuous Teflon® jacket with no splices and must be suitable for use with submersible pumps InstAl 1YJ The riser pipe or hose should be properly sized and selected based on estimated flow rates and friction-loss factors A back-up wrench should be used when the riser pipe is attaching a riser pipe or metallic nipple to the pump The pump should only be gripped by the flats on the top of the discharge chamber The body of the pump, cable guard or motor should not be gripped under any circumstance If Steel Riser Pipe Is Used: An approved pipe thread compound should be used on all joints Make sure the joints are adequately tightened in order to resist the tendency of the motor to loosen the joints when stopping and starting When tightened, the first section of the riser pipe must not come to contact with the check valve retainer in the discharge chamber of the pump Page 13 Page 2