submersible pump with hazardous location motor end - Pump Express

Single phase pumps with capacitorstart have a run and a start windingeach drawing a different current.To adequately protect thesewindings with the appropriateheaters, consult the factory.NOTE: red lead is alwaysstart wind ing of pump usingsingle phase.PumpInstallationinstalling Sump Level ControlFloat Controls:In either simplex, duplex ortriplex systems the lower orturn-off control is to be set tomaintain a minimum level in thesump. This level shall be no morethan 3 1 ⁄4" from the top of themotor housing down to thesurface of the sewage.The second or turn-on control isset above the lower turn-offcontrol. The exact distancebetween the two floats must be acompromise between a fre quentpumping cycle (10 starts per hourmax.) to control septicity, solidsand a slower cycle for energyecon o my. This distance shouldbe de ter mined by the engineer orcon sult ing engineer de pend ing onthe con di tions of the application.For installation of Hydromaticsupplied level con trols refer toyour sys tem’s installation andservice manual.installing Pump in Sump:Before installing pump in sumplay it on side and rotate impeller.Impeller may be slightly stuckdue to factory test water so it mustbe broken loose with small bar orscrewdriver in edge of vanes. Theimpeller should turn freely. Donot connect the power until afterthis test.Clean all trash and sticks fromsump and connect pump to piping.A check valve must be installedon each pump. A gate or plugvalve in each pump dischargeis highly rec om mend ed. Thisvalve should be installed on thedischarge side of the check valveso if necessary to service thecheck valve the line pressure canbe cut off. Sin gle pump systemsare sometimes installed without acheck valve where it is de sir ableto self-drain the dis charge line toprevent freezing. This can be doneonly with short discharge lines;oth er wise water will return to thesump and cause short cycling ofthe pump.Making Electrical Connections:All electrical wiring must be inac cor dance with local code, andonly qual i fied electricians shouldmake the in stal la tions. Completewiring di a grams are included foruse in making the installation. Allwires should be checked for shortsto ground with an ohmmeter orMegger after the con nec tionsare made. This is important, asone grounded wire can causecon sid er able trouble.iMPOrTANT: if equipmentis not properly wired andprotected as recommended,Hydromatic war ran ty is void.See Page 4.Heat Sensor and SealFailure Connections:If a Hydromatic control panel isused, terminal blocks are providedfor heat sensor, seal failureconnections (See Panel Schematic).If a control panel is supplied byothers, it must allow heat sensorand seal failure ter mi na tions.PumpOperationsStarting System:1. Double check all wireconnections.2. Turn pumps to Off position onH-O-A switch es.3. Turn on breakers.4A.When using single phasepumps, make sure red pumplead is con nect ed to capacitorcircuit, con nect amprobe topump power cord and turnpump on. Pump will show highamp draw mo men tari ly, thenas pump comes off startwiring, amps will drop tonormal nameplate amps.4B.When using three phasepumps (230/460/575), turnH-O-A switch to Handpo si tion on one pump andnotice op er a tion. If pump isnoisy and vi brates, rotation iswrong. To change rotation,interchange any two line leadsto pump. Do not in ter changemain incoming lines. Checkrotation of all pumps in thissame manner.5. Now set both H-O-A switchesto Auto po si tion and allowwater to rise in sump until onepump starts. Allow pump tooperate until the level dropsto turn-off point.6. Allow sump level to rise tostart other pump(s). Notice runlights to panel. Pumps shouldalternate on each successivecycle of op er a tion.7. Turn both H-O-A switches toOff position and allow sump tofill to the override control level(s).8. Turn switches to Auto position,and pumps should start andop er ate together until leveldrops to turn-off point.3