Barnes SE51A Installation And Operation Manual

Contents

Barnes SE51A Installation And Operation Manual Manual pdf 9 page image

9If current through the temperature sensor exceeds the valueslisted, an intermediate control circuit relay must be usedto reduce the current or the sensor will not work properly.TEMPERATURE SENSOR ELECTRICAL RATINGSVolts ContinuousAmperesInrushAmperes110-120 3.00 30.0220-240 1.50 15.0440-480 0.75 7.5600 0.60 6.0C-4.2-2) Single Phase (Standard) - The type of in-windingoverload protector used is referred to as an inherent overheatingprotector and operates on the combined effect of temperatureand current. This means that the overload protector will tripout and shut the pump off if the windings become too hot, orthe load current passing through them becomes too high. Itwill then automatically reset and start the pump up after themotor cools to a safe temperature. In the event of an overload,the source of this condition should be determined and rectifiedimmediately. DO NOT LET THE PUMP CYCLE OR RUN IFAN OVERLOAD CONDITION OCCURS !C-4.3) Moisture Sensors- DS Models: (Optional)A normally open (N/O) detector is installed in the pumpseal chamber which will detect any moisture present. It isrecommended that this detector be connected in series to analarm device or the motor started coil to alert the operator that amoisture detect has occurred. In the event of a moisture detect,check the individual moisture sensor probe leads for continuity,(∞ resistance = no moisture) and the junction box/control boxfor moisture content. The above situations may induce a falsesignal in the moisture detecting circuit. If none of the abovetests prove conclusive, the pump(s) should be pulled and thesource of the failure identified and repaired. IF A MOISTUREDETECT HAS OCCURRED SCHEDULE MAINTENANCE ASSOON AS POSSIBLE.C-4.4) Wire Size:Consult a qualified electrician for proper wire size if additionalpower cord length is required. See table on pages 9 and 10for electrical information.SECTION: D START-UP OPERATIOND-1) Check Voltage and Phase:Before operating pump, compare the voltage and phaseinformation stamped on the pump identification plate to theavailable power.D-2) Check Pump Rotation:Before putting pump into service for the first time, the motorrotation must be checked. Improper motor rotation canresult in poor pump performance and can damage the motorand/or pump. To check the rotation, suspend the pumpfreely, momentarily apply power and observe the “kickback”.“Kickback” should always be in a counter-clockwise directionas viewed from the top of the pump motor housing.D-2.1) Incorrect Rotation for Three-Phase Pumps:In the event that the rotation is incorrect for a three-phaseinstallation, interchange any two power cord leads at thecontrol box. DO NOT change leads in the cord housing in themotor. Recheck the “kickback” rotation again by momentarilyapplying power.D-2.2) Incorrect Rotation for Single-Phase Pumps:In the unlikely event that the rotation is incorrect for a singlephase pump, contact a Barnes Pumps Service Center.D-3) Identification Plate:Record future serial plate information in the “NOTES” section.D-3.1) Pump-Down Test:After the pump has been properly wired and lowered into thebasin, sump or lift station, it is advisable to check the systemby filling with liquid and allowing the pump to operate throughits pumping cycle. The time needed to empty the system, orpump-down time along with the volume of water, should berecorded on the start-up report.SECTION E: PREVENTATIVE MAINTENANCEAs the motor is oil filled, no lubrication or other maintenanceis required, and generally Barnes Pumps will give very reliableservice and can be expected to operate for years on normalsewage pumping without failing. In our experience attemptsat preventative maintenance are more likely to reduce, ratherthan extend the life of our pumps. However, if you are inclinedto perform preventative maintenance, the following are thesteps that should be performed.1) Inspect motor chamber for oil level and contaminationand repair as required per section F-1.2) Inspect impeller and body for excessive build-up orclogging and repair as required per section F-2.3) Inspect motor and bearings and replace as requiredper section F-3.4) Inspect seal for wear or leakage and repair as requiredper section F-4.