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Installation,Operationand MaintenanceManualStancorSE, SV, SS & SC SeriesPumpsEI-700-005 Rev --

Table of ContentsSafety Guidelines3Caution4Wiring4MaintenanceNameplate formatPrior to OperationInstallationElectrical Wiring44556Wiring6Cable6GroundingWiring DiagramsOperationMaintenanceExploded View (SE/SV)List of Parts (SE/SV)Exploded View (SS)List of Parts (SS)Exploded View (SC)List of Parts (SC)TroubleshootingDisassembly and AssemblyAppendices:Technical Data: SCSpecifications: SCTechnical Data: SESpecifications: SETechnical Data: SSSpecifications: SSTechnical Data: SVSpecifications: SVNotes66778910111213131415161616161616161717182

Safety GuidelinesThis instruction manual provides you with the information required to safely own and operate your product.Retain these instructions for future reference.The product you have purchased is of the highest quality workmanship and material, and has been engineered to give youlong and reliable service.This product has been carefully tested, inspected, and packaged to ensure safe delivery and operation. Please examine youritem(s) carefully to ensure that no damage occurred during shipment.If damage has occurred, please contact the place of purchase. They will assist you in replacement or repair, if required.READ THESE INSTRUCTIONS CAREFULLY BEFORE ATTEMPTING TO INSTALL, OPERATE, OR SERVICE YOURPRODUCT.KNOW THE PRODUCT’S APPLICATION, LIMITATIONS, AND POTENTIAL HAZARDS. PROTECT YOUR-SELF ANDOTHERS BY OBSERVING ALL SAFETY INFORMATION. FAILURE TO COMPLY WITH THESE INSTRUCTIONS COULDRESULT IN PERSONAL INJURY AND/OR PROPERTY DAMAGE!WARNING: RISK OF ELECTRIC SHOCK.To reduce the risk of electric shock, be certain that it is connected only to a properly grounded, grounding typereceptacle.When a pump is in a basin, etc., do not touch motor, pipes or water until unit is unplugged or shut off. If yourinstallation has water or moisture present, do not touch wet area until all power has been turned off. If shut-off box isnot accessible, call the electric company to shut off service to the location, or call your local fire department forinstructions. Failure to follow this warning can result in fatal electrical shock.The flexible jacketed cord assembly mounted to the pump must not be modified in any way, with the exception ofshortening the cord to fit into a control panel. Any splice between the pump and the control panel must be made withina junction box and mounted outside of the basin, and comply with the National Electrical Code. Do not use the powercord for lifting the pump.The pump motor is equipped with an automatic resetting thermal protector and may restart unexpectedly. Protectortripping is an indication of motor overloading as a result of operating the pump at low heads (low dischargerestriction), excessively high or low voltage, inadequate wiring, incorrect motor connections, or a defective motor orpump.For a submersible well pump:Reduced risk of electric shock during operation of this pump requires the provision of acceptable grounding:When the means of connection to the supply-connection box is other than grounded metal conduit, ground the pumpback to the service by connecting a copper conductor, at least the size of the circuit conductors supplying the pump,to the grounding screw provided within the wiring compartment.This pump is provided with a means for grounding. To reduce the risk of electric shock from contact with adjacentmetal parts, bond supply box to the pump-motor-grounding means and to all metal parts accessible at the well head,including metal discharge pipes, metal well casing, and similar parts, by means of:An equipment-grounding conductor at least the size of the well-cable conductors, or the equivalent, that runs downthe well with the well cable andA clamp, a weld, or both when required, secured to the equipment-grounding lead, the equipment-grounding terminal,or the grounding conductor on the pump housing.The equipment-grounding lead, when one is provided, is the conductor that has an outer surface of insulation that isgreen with or without one or more yellow stripes.For a cord and plug-connected pump:Risk of electric shock - This pump is supplied with a grounding conductor and grounding-type attachment plug. Toreduce the risk of electric shock, be certain that it is connected only to a proper grounded, grounding type receptacle.When use as a fountain pump, to reduce the risk of electric shock, use only on portable self-contained fountains nolarger than 5 feet in any dimension. Read all instructions and Safety Guidelines thoroughly. Failure to follow theguidelines and instructions could result in serious bodily injury and/or property damage.3

DO NOT USE TO PUMP FLAMMABLE OR EXPLOSIVE FLUIDS SUCH AS GASOLINE, FUEL OIL, KEROSENE, ETC.FAILURE TO FOLLOW THIS WARNING CAN RESULT IN PERSONAL INJURY, DEATH AND/OR PROPERTY DAMAGE.During normal operation, this pump is immersed in water. Also, during rain storms, water may be present in the surroundingarea of the pump. Caution must be used to prevent bodily injury when working near the pump. Electrical power should bedisconnected prior to touching, servicing or repairing the pump.Do not run the pump in a dry basin. If the pump is run in a dry basin, the surface temperature of the pumpwill rise to a high level. This high temperature could cause skin burns if the pump is touched and willcause serious damage to your pump. Do not install in locations classified as hazardous in accordancewith the National Electrical Code, ANSI/NFPA 70. Do not remove cord and strain relief. Do noconnect conduit to pump.CautionFor best performance of check valves, when handling solids install in a horizontal position or at an angle of no morethan 45 . Do not install check valve in a vertical position as solids may settle in valve and prevent opening on start-up.A gate valve should follow the check valve to allow periodic cleaning of the check valve or removal of the pump. Theremainder of the discharge line should be as short as possible with a minimum of turns to minimize friction head loss.Sewage and effluent applications will require a separate sump vent. A connection is provided on top of the sump orcover which must be piped to the existing building vent or extended outside with its own standpipe.When working on pump or switch, always unplug pump power cord in addition to removing or shutting off circuitbreaker before working on pump.WiringCheck local electrical and building codes before installation. The installation must be in accordance with theirregulations as well as the most recent National Electrical Code (NEC).Pump should be connected or wired to its own circuit with no other outlets or equipment in the circuit line. Fuses andcircuit breaker should be of ample capacity in the electrical circuit.MaintenanceIf the pump does not operate properly or trouble shooting doesn’t work, consult your pump dealer or take pump to aStancor authorized service center.Nameplate format4

Prior to OperationCheck the following points upon receipting of your pump:Is the pump exactly what you ordered? Check nameplate. It is especially important that you check whether the pump is tobe used with 50 or 60 Hz.Has any damage occurred during shipment? Are any bolts or nuts loose?Have all necessary accessories been supplied?We recommend that you keep a spare pump on hand in case of emergencies. Keep this instruction manual in a placefor future reference.Check the nameplate for your pump’s head (HEAD), volume (CAPACITY), speed (SPEED), motor voltage and current.Installation1. Check the following before beginning installation.Insulation resistance measurement:With the motor and cable (excluding the power supply cable) immersed in water, use a Megger to measure theinsulation resistance between ground and each phase of the motor, and again between each phase of the motor. TheMegger should indicate an insulation resistance of not less than 20mega ohms. While making the measurement, keepthe power supply cable off the ground.We recommend that an auxiliary pump be kept on hand in case of emergency.2. InstallationFor automatic operation, pump must be plugged or wired into a remote float switch or liquid level controller.Installation instructions are included with all our switches and controllers and should be referred to for installation.Installation and servicing shall be conducted by qualified person I people. Pump will run continuously if pluggeddirectly into an electrical outlet. Care should be taken to prevent pump running in a dry sump. Pump must beinstalled with local plumbing codes. Pump must be placed on a hard level surface. Never place pump directly onclay, earth or gravel surfaces. Pump can be installed with ABS, PVC, polyethylene or galvanized steel pipe. Properadapters are required to connect plastic pipe to pump. Always install a union in the discharge line, just above thesump pit, to allow for easy removal of the pump for cleaning or repair. A check valve must be used in thedischarge line to prevent backflow of liquid into the basin. The check valve should be a free-flow valve that willeasily pass solids.Under no circumstances should cable be pulled while the pump is being transported or installed.Attach a chain or rope to the grip and install the pump.This pump must not be installed on its side or operated a dry condition. Ensure that it is installed upright on a securebase.Install the pump at a location in the tank where there is the least turbulence.If there is a flow of liquid inside the tank, support the piping where appropriate. Install piping so that air will not beentrapped. If piping must be installed in such a way that air pockets are unavoidable, install an air release valve whereversuch air pockets are most likely to develop.Do not permit end of discharge piping to be submerged, as backflow will result when the pump is shut down.Non-automatic pumps, have an automatic operating system pump operating water level near the minimum operating levelas the automatic cut-off switch incorporated inside the motor will be activated. To avoid dry operation, install an automaticoperating system, and maintain a safe operating water level (C.W.L.: Continuous Water Level).For automatic pumps, install the floats as required. The pump may not start if a floats switch touches the wall of the watertank or the piping. Install the floats so that this will not happen.5