SCM SA6 GB
Contents
1. C SCM 4 25 C SA 6 MAX FREE PASSAGE 3 mm MAXIMUM SAND QUANTITY 50 g m SCM 4 40 g m SA 6 MAX ON OFF CYCLES HOUR 20 SCM 4 15 SA 6 equally distributed MINIMUM WELL DIAMETER 100 mm SCM 4 150 mm SA 6 MAX IMMERSION DEPTH 150m CH 4 MOTOR ASSEMBLY DANGER When installing please ensure unit is P disconnected from electrical supply SCM 4 PLUS SCM 4 HF and SA 6 pumps are designed to be coupled with 4 motors SCM 4 PLUS SCM 4 HF and SA 6 and 6 motors SA 6 in accordance with NEMA standards Perform the following operations to guarantee a correct coupling remove the raceway that protects the cable and the sand protection filter manually check the rotation of the motor shaft and the hydraulic unit verify that the coupling and the coupling axis are clean join the pump body and the motor verifying that the electric cable is correctly positioned next to grooves on the hydraulic unit supports tighten the nuts on the 4 motor tie rods alternatively on the diagonals position the electric cable along the pump and reassemble the protection raceway by tightening the screws to the hydraulic unit fix the sand protection filter to the lower support of the hydraulic unit body by using the screws provided for this purpose CH 5 ELECTRIC PUMP INSTALLATION see fig 1 DANGER When installing please ensure pump is disconnected Risk of electric from electrical supply shock DANGER Never u2. complies with the data quoted in the order that is has not suffered damages during transportation All damages should be immediately reported to the distributor within 8 eight days from the date of purchase Don t disperse and or throw the packaging away and take all possible measures to re use it and recycle it Before transporting the unit check the following data weight of the pump or the pump end overall dimensions lifting points The pump or the pump end has to be transported with equipment suitable to its weight and dimensions Only pumps or units with a weight below 20 Kg can be transported manually The units have to be stored in closed dry and ventilated areas avoiding excessively low temperatures If the units have to be stored for long periods of time above 12 months or in presence of low temperatures it is necessary to rotate the shafts and the hydraulic unit at least once a month Protect the terminals of the cables from humidity making sure that these are not bent with curves above 6 times their diameter If the single components are stored individually protect the rubber parts and the thrust bearings from direct sun light CH 3 LIMITATIONS SCM 4 Plus SCM 4 HF and SA 6 pumps are designed to pump clean water for the food industry Electric pump cannot be used to move inflammable or dangerous liquids e WARNING e WARNING MAX TEMPERATURE OF PUMPED LIQUID Ensure electric pump never runs dry 30
3. CONTENTS Ch 1 Features Ch 5 Electric pump installation Ch 2 Transportation and storage Ch 6 Electric connection Ch 3 Limitations Ch 7 Starting the unit Ch 4 Motor assembly Ch 8 Maintenance and troubleshooting GENERAL SAFETY WARNING Warnings for the safety of individuals and things Please pay careful attention to the following signs and indications DANGER Warns that the failure to follow directions may cause electric shock Electric shock risk aN DANGER It indicates that the failure to comply with the instruction given can Risk of bursting cause an explosion aN DANGER Warns that failure to follow directions could cause serious risk to persons or things H WARNING It indicates that the failure to comply with the instruction given can damage the pump WARNING Before installing this pump read this manual carefully Any damage caused by failure to observe any directions in this manual will not be covered by warranty CH 1 FEATURES SCM 4 Plus SCM 4 HF and SA 6 pumps can be supplied with or without electric motor This booklet supplies all the information concerning the use and maintenance of these machines SCM 4 Plus SCM 4 HF and SA 6 pumps are submersed The multi stage pumping unit is directly coupled to the submersed electric motor CH 2 TRANSPORT AND STORAGE Each machine is carefully tested and packed during the assembly phase On receiving the pump customers will have to verify that the product
4. aks in the delivery hose 4 Pump or suction filter clogged 4 Extract the pump and clean the filter and the parts Periodical maintenance should be performed according to the content of sand in water In ordinary conditions SCM with sand clogged with sand 4 Plus SCM 4 HF and SA 6 pumps do not require servicing To prevent possible failure it is advisable to periodically 5 Incorrectly calculated load 5 Revise the calculations and use a hose with a larger control the flow rate and current absorption A fall below 50 in the flow rate as compared to the rated value losses s iA replace the pump indicates that the pump is worn Similarly an increase of the current absorption above 5 indicates the presence of a a EE EEE ee ike AR EE ET abnormal mechanical failures in the pump and or motors In many cases it is necessary to replace the worn parts value and the absorption is supply cable like impellers O rings and bearings If the content of sand in pumped water is high it is advisable to inspect the pump higher than usual for the first time after about one thousand operating hours If the pump is left idle in the well for long intervals of time 8 The absorbed current is below 8 Start the pump and stop it at intervals of about one it is advisable to start it and allow it to run for a short time every 2 3 months Always make sure that the unit is ordinary values because of the minute completely submersed presence of air inside the pump
5. command the performances of the pump that should always be within the operating range RATES AND HEADS three phase versions panel the value of the current supplied to the control board that should always be below the one indicated on the motor 2 Leakage in the installation 2 Find leak and repair it nameplate 3 Filter is clogged or sand in 3 Remove the unit and clean the filter If necessary partially open the gate or adjust the pressure switches If abnormal operating conditions are reported electric pump 4 Electric pump worn out 4 Extract the pump inspect it and replace the worn parts or the pump 5 The pressure head has been 5 Revise calculations and replace the pump if necessary incorrectly calculated during the start up phase stop the machine establish the cause and remove the pump from the well if necessary THE PUMP DOESN T PROVIDE 1 The water level in the well is 1 Check the stratum level during the pump operation and CH 8 MAINTENANCE AND TROUBLESHOOTING WATER lower than the suction level or reposition the pump into the well eee the stratum has lowered 5 2 The valves are blocked or 2 Check the valves If they are blocked slightly hit the DANGER Before doing any operation make sure machine is positioned in the opposite delivery line in the attempt of moving the valve AN A N Electric shock disconnected from electric power supply direction 3 Inspect the line find possible leaks and repair them risk 3 Le
6. control panel and that the protection relays are suited to the absorption indicated on the nameplate At this point disconnect the unit and start lowering it into the well All lowering operations should be performed using stainless steel or nylon ropes and the slots provided on the head of the pump Connect the first pipe section to the drain mouth of the pump after fixing the two halves of the supporting rod to the end of the pipe If threaded pipes are provided apply the threaded sleeve to the upper end to avoid it sliding between the pipe and the rod Use a hoist to lower the whole unit into the well Carefully control the free end of the cable to prevent it falling into the well Connect the second section of the pipe that is coupled to the upper supporting rod remove the previous rod and lower the whole unit into the well Repeat this operation until the desired project depth has been reached Take into account that the machine must be positioned at 1 2 m below the dynamic level or at any rate at a depth that meets the pump NPSH Before positioning the pump it is necessary to take into account the lowering of the water level that can originate from seasonal factors or from an excessive stratum extraction The well level should never fall below the suction chamber to avoid gripping the guide bushings and overheating the motor The power cable should be fixed with straps every 2 3 m of pipe Cables should be safely anchored to the riser to prevent lo
7. ion 1 Find leak and repair it for above 30 seconds 2 Electric pump capacity too high 2 Reduce amount of incoming water from source After verifying the direction of rotation allow the pump to run reducing the opening of the valve to about half the with respect to the well level maximum opening for about one minute Stop the pump to remove gas pockets from the hydraulic unit since their probes intervene presence could prevent the correct lubrication of the shaft This interval should always be below 5 minutes After l oo performing this operation restart the machine by gradually opening the delivery valve until all the sand has been 3 Pressure switch not correctly 3 Adjust calibration removed or has reached minimum levels 40 g m3 If the well has been built and drained correctly this operation can callbrered use Aviih autoclava be performed in about 20 minutes After the completion of this phase it is possible to connect the delivery hose of the 4 Tank saturated with water 4 Restore correct tank functioning pump Before starting the pump is final mode check 5 Autoclave tank too small 5 Replace the tank the continuity of the electric circuit to make sure that no damages have occurred during the lowering in the well the insulation resistance to ground that is the related value between the cable terminals and the drainage pipe THE PUMP YIELDS LOW FLOW 1 IIncorrect direction of rotation 1 Reverse two power supply phases in the
8. ne than 30 seconds TRIP AND THE STARTER 2 Overload originating from sand 2 Extract the pump repair it and clean it RELAYS ARE ENABLED clogging Bearings tend to block Complete all the electric and mechanic connections 3 The current that passes through 3 Check the voltage on the phases inspect the condition H WARNING before starting the pump the windings is 1 5 2 above the of the fuses and of the starter contacts rated value single phase versions 4 The differential switch has 4 Reset the switch If the switch continues to trip contact Before lowering the pump into the well it is necessary to control the direction of rotation of the motor to avoid damaging tripped a qualified electrician the thrust bearing If the direction of rotation is correct the hydraulic performances of the pump are compliant with 5 The pump is blocked ina non 5 Move the pump to the correct position and restart it those indicated in the catalogue To perform this check it is necessary to start the pump with a partially opened gate perfectly vertical well When the water starts flowing in further close the gate and verify that the pressure value is above the one indicated on the nameplate If this not occurs the motor is rotated in the opposed direction To resume the correct direction of rotation invert the two phases on the control panel The motor of the pump should not rotate in the opposite direction THE PUMP STARTS TOO OFTEN 1 Leakage in the installat
9. ould guarantee a submersed operation have waterproof joints and show no signs of abrasions or holes The control board should be equipped with all the protection devices and equipment to manage and drive the hydraulic unit More specifically it is necessary to guarantee a protection against overcurrent and short circuits Protections against the loss of phases the lowering of voltage and the lack of water in the well are recommended but not compulsory CH 7 STARTING THE UNIT Ga WARNING Use the hydraulic unit within the operating limits indicated REMEDY on the nameplate or the datasheet THE PUMP DOESN T START 1 No voltage or incorrect voltage 1 ees that ibe is electricity and verify voltage with BUT THE FUSES TRIP AND THE ata on motor plate 2 The command panel is not Ga WARNING Never run the pump in dry conditions even for short siipii RELAYS CANNOT BE A piooedly 2 Correctly connect the control panel intervals of time 3 The pump is blocked 3 Remove obstacle from electric pump 4 Interrupted circuit in the cable or 4 Use an Ohmmeter to control the continuity of the WARNING Do not run the pump with the interception valve on motor winding electric system delivery completely closed 5 ine oe switch has 5 Reset switch if it trips again call a qualified electrician ripped WARNING Do not run the pump in the opposite direction for more THE PUMP STARTS THE FUSES 1 Low voltage 1 Increase the diameter of the supply li
10. se the electric cable to support the electric pump Risk of electric shock DANGER Be careful not to damage the electric cable when lowering Risk of electric it into the well shock DANGER This type of pump can develop high pressure If a Risk of bursting collection tank or expansion tank 15 is to be installed it is advisable to install a pressure limiter valve 16 between the tank and the pump A N DANGER All of the pipes and installation parts must have a Risk of bursting maximum working pressure which is greater or equal to the maximum pressure of the pump if this is not possible it is necessary to use a pressure reducer Protect the electric pump and all pipes from freezing e WARNING Before installing the hydraulic unit inside the well it is necessary to remove all the sand in accordance with the ordinary procedures adopted for perforators SCM 4 PLUS SCM 4 HF and SA 6 pumps should never be used without pumping liquid because the bearings are lubricated by the liquid itself The pump can suffer severe damage if it is operated in dry conditions even for short interval of time The unit has to be positioned on the bottom of the well and slightly raised by approximately 1 2 m to prevent the sand surrounding the motor and the pump and overheating the former and wearing the rotating parts of the latter Before lowering the pump into the well make sure that the supply cable have been correctly tightened to the fittings on the
11. wering caused by weight These movements could cause deformations owed to the striking against the walls of the well and ruptures of the cables If the riser is formed by threaded tube sections it is necessary to tighten the latter to prevent them coming loose due to the machine reaction torque CH 6 ELECTRIC CONNECTION H WARNING Ensure tension and frequency of pump read plate and power supply are same DANGER Installer must make sure that electric current network igi shock has ground wire conforming to current laws ris DANGER Make sure that electric current network is provided with J A N Electric shock a high sensitivity circuit breaker A 30 mA DIN VDE risk 01007739 Before connecting the power supply cord to the clamps on the command panel make sure that the cord is able to withstand the nominal current of the unit Ga WARNING Electric connections must be carried out by skilled staff only in accordance with the manufacturer s instructions enclosed to the electric equipment and the motor It is advisable to install a protection device upstream of adequate dimensions in accordance with the current values indicated on the nameplate to prevent voltage peaks and overloads Cables should be selected in function of the absorption in Ampere indicated on the nameplate Cables should be dimensioned in accordance to the power to transmit of the distance from the control page and the starting system of the submersed motor Cables sh
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