6, 8 & 10 STAINLESS STEEL SUBMERSIBLE PUMPS

1 Installation andOperating InstructionsPlease leave these instructions with the pump for future , 8 & 10 STAINLESS STEELSUBMERSIBLE PUMPSPage(s)Shipment Inspection .. 1 Pre-Installation Checklist .. 1 Wire Cable Type .. 2 Splicing the Motor Cable .. 3 Installation .. 4-5 Page(s)Electrical .. 5-7 Start-Up .. 8-10 Troubleshooting .. 10-14 Technical Data ..15-21 Limited Warranty .. 23 TABLE OF CONTENTSPage 1 SAFETY WARNINGG rundfos STAINLESS STEEL SubmersiblePumpsYour Grundfos SUBMERSIBLE Pump is of the utmost quality. Combined with properinstallation, your Grundfos pump will give you many years of reliable ensure the proper installation of the pump, carefully read the complete manualbefore attempting to install the InspectionExamine the components carefully to make sure no damage has occurred to thepump-end, motor, cable or control box during Grundfos SUBMERSIBLE Pump should remain in its shipping carton until it is ready to beinstalled.

2 The carton is specially designed to protect it from damage. During unpacking andprior to installation, make sure that the pump is not dropped or motor is equipped with an electrical cable. Under no circumstance should the cable beused to support the weight of the will find a loose data plate with an adhesive backing with the pump. The nameplateshould be completed in pen and attached to the control ChecklistBefore beginning installation, the following checks should be made. They are allcritical for the proper installation of this SUBMERSIBLE Condition of the WellIf the pump is to be installed in a new well, the well should be fully developed and bailed orblown free of cuttings and sand. The STAINLESS STEEL construction of the Grundfos submersiblemake it resistant to abrasion; however, no pump, made of any material, can forever withstandthe destructive wear that occurs when constantly pumping sandy this pump is used to replace an oil-filled SUBMERSIBLE or oil-lubricated line-shaft turbine in anexisting well, the well must be blown or bailed clear of the maximum depth of the well, and the draw-down level at the pump s maximumcapacity.

3 Pump selection and setting depth should be based on this inside diameter of the well casing should be checked to ensure that it is not smaller thanthe size of the pump and 2B. Condition of the WaterSubmersible PUMPS are designed for pumping clear and cold water that is free of air andgases. Decreased pump performance and life expectancy can occur if the water is not coldand clear or contains air and water temperature should not exceed 102 F. Special consideration must be givento the pump and motor if it is to be used to pump water above 102 Grundfos STAINLESS STEEL SUBMERSIBLE is highly resistant to the normal corrosiveenvironment found in some water wells. If water well tests determine the water has anexcessive or unusual corrosive quality, or exceeds 102 F, contact your Grundfosrepresentative for information concerning specially designed PUMPS for these Installation DepthA check should be made to ensure that the installation depth of the pump will always be atleast (5) five to (10) ten feet below the maximum draw-down level of the well.

4 For flow ratesexceeding 100 gpm, refer to performance curves for recommended bottom of the motor should never be installed lower than the top of the well screen orwithin five feet of the well the pump is to be installed in a lake, pond, tank or large diameter well, the water velocitypassing over the motor must be sufficient to ensure proper motor cooling. The minimumrecommended water flow rates which ensure proper cooling are listed in Table Electrical SupplyThe motor voltage, phase and frequency indicated on the motor nameplate should bechecked against the actual electrical Cable TypeThe wire cable used between the pump and control box or panel should be approved forsubmersible pump applications. The conductor may be solid or stranded. The cable mayconsist of individually insulated conductors twisted together, insulated conductors moldedside by side in one flat cable or insulated conductors with a round overall conductor insulation should be type RW, RUW, TW, TWU or equivalent and must besuitable for use with SUBMERSIBLE PUMPS .

5 An equivalent Canadian Standards Associationcertified wire may also be used. See Table D for recommended sizes of cable the Motor CableA good cable splice is critical toproper operation of the submersiblepump and must be done with the splice is carefully made, it will workas well as any other portion of the cable,and will be completely recommends using a heatshrink splice kit. The splice should bemade in accordance with the kitmanufacture s instructions. Typically aheat shrink splice can be made asfollows:1. Examine the motor cable and the dropcable carefully for Cut the motor leads off in a staggeredmanner. Cut the ends of the drop cableso that the ends match up with the motorleads (See Figure 4-A). On single-phasemotors, be sure to match the Strip back and trim off 1/2 inch ofinsulation from each lead, making sure toscrape the wire bare to obtain a goodconnection.

6 Be careful not to damage thecopper conductor when stripping off Slide the heat shrink tubing on to eachlead. Insert a properly sized Sta-kon type connector on each lead, making surethat lead colors are matched. Using a Sta-kon crimping pliers, indent the lugs(Figure 4-B). Be sure to squeeze hard onthe pliers, particularly when using Center the heat shrink tubing over theconnector. Using a propane torch, lighter,or electric heat gun, uniformly heat thetubing starting first in the center workingtowards the ends (Figure 4-C).6. Continue to apply the heat to the tubingusing care not to let the flame directlycontact the tubing. When the tubingshrinks and the sealant flows from theends of the tubing, the splice is complete(Figure 4-D).Page 3 FIGURE 4-AFIGURE 4-BFIGURE 4-CFIGURE 4-DInstallationThe riser pipe or hose should be properly sized and selected based on estimatedflow rates and friction-loss An Adapter NeedsTo Be Installed:It is recommended to first install the droppipe to the pipe adapter.

7 Then install thedrop pipe with the adapter to the back-up wrench should be used when theriser pipe is attached to the pump. The pumpshould be gripped only by the flats on the topof the discharge chamber. The body of thepump, cable guard or motor should not begripped under any STEEL Riser Pipe IsUsed:We recommend that STEEL riser pipes alwaysbe used with the larger submersibles. Anapproved pipe thread compound should beused on all joints. Make sure the joints areadequately tightened in order to resist thetendency of the motor to loosen the joins when stopping and tightened, the first section of the riser pipe must not come in contact withthe check valve retainer in the discharge chamber of the the first section of the riser pipe has been attached to the pump, the lifting cable orelevator should be clamped to the pipe.

8 Do not clamp the pump. When raising the pumpand riser section, be careful not to place bending stress on the pump by picking it up by thepump-end sure that the electrical cables are not cut or damaged in any way when thepump is being lowered in the drop cable should be secured to the riser pipe at frequent intervals to prevent sagging,looping or possible cable damage. Nylon cable clips or waterproof tape may be used. Thecable splice should be protected by securing it with clips or tape just above and below Plastic or Flexible Riser Pipe Is Used:It is recommended that plastic type riser pipe be used only with the smaller domesticsubmersibles. The pipe manufacturer or representative should be contacted to insure thepipe type and physical characteristics are suitable for this use.

9 Use the correct jointcompound recommended by the pipe manufacturer. In addition to making sure that jointsare securely fastened, the use of a torque arrester is recommended when using 4or5 NPT to 6 NPT5 NPT to 4 NPT385S475 SDrop PipePump DischargePipe AdaptersInstallationDo not connect the first plastic or flexible riser section directly to the pump. Alwaysattached a metallic nipple or adapter into the discharge chamber of the pump. Whentightened, the threaded end of the nipple or adapter must not come in contact with thecheck valve retainer in the discharge chamber of the drop cable should be secured to the riser pipe at frequent intervals to prevent sagging,looping and possible cable damage. Nylon cable clips or waterproof tape may be used. Thecable splice should be protected by securing it with clips or tape just above each Plastic and flexible pipe tend to stretch under load.

10 This stretchingmust be taken into account when securing the cable to the riser pipe. Leave 3 to 4inches of slack between clips or taped points to allow for this stretching. Thistendency for plastic and flexible pipe to stretch will also affect the calculation of thepump setting depth. As a general rule, you can estimate that plastic pipe will stretchto approximately 2% of its length. For example, if you installed 200 feet of plastic riserpipe, the pump may actually be down 204 feet. If the depth setting is critical, checkwith the manufacturer of the pipe to determine who to compensate for pipe plastic riser pipe is used, it is recommended that a safety cable be attached to thepump to lower and raise valves:A check valve should always be installed at the surface of the well.