Grundfos Redi-Flo 3 SQ & SQE Manual
Contents
1. Y TN 4 N e b MA Y u LANES o ms a y M as A 1 3 Vi BS hos mA E SE gt zw 9 P LA Y m 8 a gt A 1 7 e 2 4 Q R Installation and Operating Instructions High Starting Torque Soft Start 2 seconds to reach maximum rpm and maximum pressure Built in Smart Motor Protection with automatic restart Simple Installation Communicate with SQE Through CU300 Status Box Please leave these instructions with the pump for future reference 7 7 e GRUNDFOS X Leaders in Pump Technology SN U LIMITED WARRANT Y Products manufactured by GRUNDFOS are warranted to the original user only to be free of defects in material and workmanship for a period of 18 months from date of installation but not more than 24 months from date of manufacture GRUNDFOS liability under this warranty shall be limited to repairing or replacing at GRUNDFOS option without charge F O B GRUNDFOS factory or authorized service station any product of GRUNDFOS manufacture GRUNDFOS will notbe liable for any costs of removal installation transportation or any other charges which may arise in connection with a warranty claim Products which are sold but not manufactured by GRUNDFOS are subject to the warranty provided by the manufacturer of said products and not by GRUNDFOS warranty GRUNDFOS will not be liable for damage or wear to products caused by abnormal operating conditions accident abuse2. Troubleshooting 1 The pump does not run 2 The pump runs but gives no water 3 The pump runs at reduced capacity 4 Frequent starts and stops Page 13 Cause The fuses are blown The GFI circuit breaker has tripped No electricity supply The motor protection has cut off the electricity supply due to overload The drop cable is defective Overvoltage has occured The discharge is closed No water or too low water level in well Check valve is stuck in it s closed position The suction strainer is closed The pump is defective The drawdown is larger than anticipated he valve sin the discharge pipe are partly closed blocked The discharge pipe is partly chocked by impurities Iron bacteria The non return valve of the pump is blocked The pump and the riser pipe are partly choked by impurities Iron bacteria The pump is defective Hole in discharge pipe Theriser pipe is defective Undervoltage has occurred hedifferential of the pressure switch between the start and stop pressures is too small The water level electrodes or level switches in the reservior have not been installed correctly Checkvalve is leaking or stuck half open The supply voltage is unstable The motor temperature is too high Troubleshooting Remedy Replace the blown fuses If the new fuses blow too check the electrical installation and the drop
3. misuse unauthorized alteration or repair or if the product was not installed in accordance with GRUNDFOS printed installation and operating instructions To obtain service under this warranty the defective product must be returned to the distributor or dealer of GRUNDFOS products from which it was purchased together with proof of purchase and installation date failure date and supporting installation data Unless otherwise provided the distributor or dealer will contact GRUNDFOS or an authorized service station for instructions Any defective productto be returned to GRUNDFOS or aservice station must be sent freight prepaid documentation supporting the warranty claim and or a Return Material Authorization must be included if so instructed MANUFACTURER WILL NOT BELIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES LOSSES OR EXPENSES ARISING FROM INSTALLATION USE OR ANY OTHER CAUSES THERE ARE NO EXPRESS OR IMPLIED WARRANTIES INCLUDING MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE WHICH EXTEND BEYOND THOSEWARRANTIES DESCRIBED OR REFERRED TO ABOVE EXCEPT AS EXPRESSLY HEREIN PROVIDED THE GOODS ARE SOLD AS IS THE ENTIRE RISK ASTOQUALITY ANDFITNESSFOR APARTICULAR PURPOSE AND PERFORMANCE OF THEGOODSIS WITH THE BUYER AND SHOULD THE GOODS PROVE DEFECTIVE FOLLOWING THEIR PURCHASE THE BUYER AND NOT THE MANUFACTURER DISTRIBUTOR OR RETAILER ASSUMES THE ENTIRE RISK OF ALL NECESSARY SERVICING OR REPAIR Some jurisdictions do notallow
4. Dimensions Pump Diameter Pump Diameter incl cable guard Pump End Dimensions min and max 5SQ SQE 10SQ SQE 15SQ SQE 22SQ SQE 30SQ SQE Pump End Weights min and max All SQ SQE Models Well Diameter minimum Installation Depth Maximum 5SQ SQE 1 NPT 10 15SQ SQE 1 1 4 NPT 22 30SQ SQE 1 1 2 NPT 4 F 140 F If the pump has to be stored after use it must be stored on a frost free location or it must be ensured that the motor liquid is frost proof The motor must be stored without being filled with motor liquid 20 9 length x 2 68 diameter 20 9 length x 2 68 diameter 22 3 length x 2 68 diameter to 18 0 to 16 9 to 16 9 to 16 9 to 13 7 2 2 Ibs to 3 5 Ibs 3 500 feet below static water level Page 16 Technical Data PUMP TYPE HP VOLTAGE CONFIG MAX AMPS 5sQSQEoB270 12B 23V B9 49 5SQSQE07B 320 34B 23V B6 76 ICE cw re sasao 10 mw or zo fosasaeioc 200 ic zv ce 76 jososceiocm 1c m cs 76 keosoem eo Tec ew cs issosoecen ro mw or ue 15SOSOEI0C20 16 mW ce 76 15SQSQE15C 290 112C 23V co m1 230V 115V BOSQSGEO5B 90 1 28 23V 0 1C 30SQSQE10130 1C 23V 30SQ SQE15C 170 Page 17 Technical Data ACCESSORIES PART NUMBER 96422776 96037505 96037562 96022967 96022970 96026030 CONSTANT PRESSURE KIT 5 15SQE 96022968 Includes CU300 Pressure Transducer amp 5 GPM
5. Flow Switch CONSTANT PRESSURE KIT 22 30SQE 96022971 Includes CU300 Pressure Transducer amp 1 GPM Flow Switch LOW SLEEVE LOW SWITCH 5 GPM 5 15SQE LOW SWITCH 1 GPM 22 30SQE PRODUCT _ J J J J PARTNUMBER CUS0 96422776 FLOWSLEEVE o 1 96037505 GREASE 96037562 FLOW SWITCH 5 GPM 5 15SQE 96022967 FLOW SWITCH 1 GPM 223050 _ 96022970 PRESSURE TRANSMITTER 96026000 96022068 Notes Page 18
6. Motors Note To set Dry Run limit in the MSE SQE pumps you need to connect the pump to a CU 300 Refer to CU 300 I amp O for proper connections To set Dry Run protection follow these steps 1 Start the pump against closed discharge 2 Rapidly read the power consumption value W in the R100 display 2 5 3 Multiply this value by 0 9 4 Within the R100 go to display 4 6 and enter the new value minimum power limit 5 Go to display 4 7 and change the setting to Active For further information on dry running refer to CU 300 I amp O Maintenance and service The pumps are normally maintenance free Deposits and wear may occur For that purpose service kits and service tools are available from GRUNDFOS The GRUNDFOS Service Manual is available on request The pumps can be serviced at a GRUNDFOS service center Page 11 Assembly Disassembly 19 Assembly of Pump and Motor To assemble pump end and motor proceed as follows 1 Place the motor horizontally in a vice and tighten it see fig 12 2 Grease the motor shaft end with the grease supplied with the motor 3 Screw the pump end on the motor A spanner may be used on the clamping faces of the pump part see fig 12 4 Install cable guard as described on page 7 When pump end and motor have been assembled correctly there must not be a clearance between pump end and motor To disassemble reverse procedure VA Use pump vise here Fig 12 Page 12
7. sediment then it is recommended the pump be placed in a Flow Sleeve The motor should always be installed above the well screen 5 Applications Typical applications Groundwater supply for residential housing Fig 2 small waterworks irrigation systems liquid transfer in tanks Note The pump must not be used as a booster pump in a booster system 6 Motor Preparation GRUNDFOS MS 3 and MSE 3 submersible motors have water lubricated slide bearings No additional lubrication is required The submersible motors are factory filled with a special GRUNDFOS motor liquid type SML 2 which will protect the motor fluid down to 4 F 20 C and to prevent the growth of bacteria The level of motor fluid is important for the operating life of the bearings and consequently the life of the motor Refilling of motor liquid It is recommended to refill the motor with GRUNDFOS motor fluid SML 2 Page 2 Pre Installation Checklist To refill the motor proceed as follows 1 Remove the cable guard and separate the pump end from the motor 2 Place the motor in vertical position with an inclination of approx 10 3 Remove the filling plug using a screwdriver or a similar tool 4 Inject motor liquid into the motor with a filling syringe or similar tool see fig 3 5 To allow possible air to escape move the motor from side to side And turn the Fig 3 shaft 6 Replace the filling plug and make sure it i
8. cable Heset the circuit breaker Contact the Electricity provider Check for motor pump blockage Repair replace the pump cable Check the electricity supply Open the valve oee item 3a Pull the pump and clean or replace the valve Pull the pump and clean the strainer Repair replace the pump Increase the installation depth of the pump throttle the pump or replace it with a smaller capacity model Check and clean replace the valves as necessary Clean rplace the dischrge pipe Pull the pump and check replace the valve Pull out the pump Check and clean or replace the pump if necessary Clean the pipes Repair replace the pump Check and repair the piping Replace Check the electricity supply Increase the differential However the stop pressure must not exceed the operating pressure of the pressure tank and the start pressure should be high enough to ensure sufficient water supply Adjust the intervals of the electrodes level switches to ensure suitable time between the cutting in and cutting out of the pump See installation and operating instructions for the automatic devices used If the intervals between start stop cannot be changed via the automatics the pump capacity may be reduced by throttling the discharge valve Pull the pump and clean replace the non return valve Check the electrical supply Check the water temperature Page 14 Troubleshooting Instruments not allowed Note The
9. ch waste collection service does not exist or cannot handle the materials used in the product please deliver the product or any hazardous materials from it to your nearest GRUNDFOS company or service center Page 15 Supply Voltage Operation via Generator Starting Current Run up Time Motor Protection Power Factor Service Factor Motor Cable Length Motor Liquid oH Values Liquid Temperature Technical Data 1x200 240V 6 10 50 60 Hz PE 1x100 115V 6 10 50 60 Hz PE As a minimum the generator output must be equal to the motor P1 KW 10 highest value stated on the motor nameplate The motor is protected against Dry running overvoltage undervoltage overload overtemperature U 0 33 0 50A HP 1 75 at 115V 230V 0 50 0 75A HP 1 4 at 230V 1 0 1 5C HP 1 15 at 230V 3 Wire 14 AWG XLPE 5 ft Type SML 2 SQ and SQE 5 to 9 The temperature of the pumped liquid must not exceed 104 F Note if liquids with a viscosity higher than that of water are to be pumped please contact GRUNDFOS Discharge Port STORAGE CONDITIONS Minimum Ambient Temperature Maximum Ambient Temperature Freeze Protection OPERATING CONDITIONS Minimum Ambient Fluid Temperature Maximum Ambient Fluid Temperature APPROXIMATE DIMENSIONS AND WEIGHT Motor Dimensions MS 3 amp MSE 3 0 33 0 50A hp 0 50 0 75B hp 1 0 1 5C hp Motor Weights MS 3 amp MSE 3 0 33 0 50A hp 0 50 0 75B hp h Pump End
10. d Note The pump s dry running protection is effective only within the recommended duty range of the pump Note Do not let the pump run against a closed discharge valve for more than 5 minutes When the discharge valve is closed there is no cooling flow and there is a risk of overheating in motor and pump Page 10 Operating the Pump Built in protection The motor incorporates an electronic unit which protects the motor in various situations In case of overload the built in overload protection will stop the pump for 5 minutes After that period the pump will attempt to restart If the pump is started and the well has not recovered the pump will stop after 30 seconds If the pump has been stopped as a result of dry running it will start automatically after 5 minutes Resetting the pump Switch off the electricity supply for 1 minute The motor is protected against the following conditions dry running voltage surges up to 5000 V overvoltage undervoltage overload overtemperature MS 3 Motors Note All MS 3 motors are factory set to detect dry running conditions However it is important to ensure that the configurations of both the SQ pump and motor are the same configuration Configurations can be found on both SQ pump and motor nameplates as Config EXAMPLE Config A 2 must match the other nameplate A 2 See Technical Data on page 17 for quick referencing on all configurations MSE 3
11. e four screws supplied see fig 8 Page 7 Installation Procedures 14 Piping e The pump should only be gripped by the two flats at the top of the pump as shown in fig 9 e The pump can be installed vertically or horizontally During operation the pump must always be completely submerged in water e When plastic pipe is used a stainless Fig 9 steel safety wire is recommended for lowering and lifting the pump Fasten the wire to the eyelet on the pump as shown in fig 10 e hethreaded joints must be well cut and fit together tightly to ensure that they do not work loose 15 Installing the Pump Installation Depth The dynamic water level should always be above the pump see fig 11 A Dynamic water level B Static Water Level C Minimum 3 well diameter D Drawdown B E Installation depth below static A water level Maximum 500 feet Procedures To install the pump follow these steps 1 Install the enclosed data plate sticker at the wellhead 2 Check the well for proper clearance the well must be at least 3 in diameter Itisa good idea to check the well for clearance using a plumb ring 2 95 x 10 in 3 Attach the first section of riser pipe to the Fig 11 pump 9 Page 8 Installation Procedures 16 Installing the Pump cont 4 Lower the pump into the well Make sure the motor cable is not damaged when the pump is lifted or l
12. g depth should be made based on this data 3 Pumped Fluid Requirements Submersible well pumps are designed for pumping clear cold water free of air or gases Decreased pump performance and life expectancy can occur if the water is not clear cold or contains air or gases Water temperature should not exceed 104 F A check should be made to ensure that the installation depth of the pump will always be at least three feet below the maximum drawdown level of the well The bottom of the motor should never be installed lower than the top the screen or within five feet of the well bottom as shown in fig 1 4 Motor Cooling Requirements ci To ensure proper motor cooling refer to the table below for minimum flow Flow velocity Maximum past the motor liquid temperature requirements 0 0f s 86 F 30 C free convection Min 0 5 f s 104 F 40 C Page 1 Pre Installation Checklist If the pump is to be installed horizontally e g in a tank and there is a risk that the pump might be covered by mud it must be installed in a flow sleeve Liquid temperatures cooling Figure 2 shows an SQ SQE pump installed in a well With the pump operating Figure 2 illustrates the following Well diameter Pump diameter Temperature of pumped liquid Flow past the motor to the pump suction strainer Note The well diameter must be at least 3 If there is a risk that the motor will be covered with
13. ipknot Grey Wrap each wire and joint tightly for a distance of about 212 inches on each side of the joint Make a minimum of four passes over each joint and overlap each pass approximately one inch to assure a completely watertight seal Page 6 Installation Procedures General Note Do not lower or lift the pump by means of the motor cable The loose data plate supplied with the pump should be placed close to the installation site 12 Installing the cable plug to the motor The cable plug supplied with the motor is factory greased Check that the plug is greased correctly To install the cable plug proceed as follows 1 Check that the cable is of the correct type cross section and length 2 Check that the mains on the location has correct connection to ground 3 Check that the motor socket is clean and dry 4 Press the cable plug into the motor socket The plug will only fit one way see fig 6 5 Install and tighten the four nuts see fig 6 gt When the plug has been installed there must Fig 6 not be a clearance between the motor and the cable plug 13 Installing the cable guard To fit the cable guard proceed as follows 1 Make sure that the motor lead lies flat in the cable guard 2 The two flaps of the cable guard must engage with the upper edge of the pump sleeve see fig 7 Fig 7 ES BO amp G WS GS XA Cw GE 3 Fasten the cable guard to the cable plug with th
14. irst Time When the pump has been connected correctly the pump should be started with the discharge valve closed approximately one third Due to the soft start feature the pump takes approximately 2 seconds to develop full pressure Motor Cooling and Other Considerations e Make sure the well is capable of yielding a minimum quantity of water corresponding to the pump capacity e Do not start the pump until it is completely submerged in the liquid e As the valve is being opened the drawdown should be checked to ensure that the pump always remains submerged e To ensure the necessary cooling of the motor the pump should never be set so low that it gives no water If the flow rate suddenly falls the reason might be that the pump is pumping more water than the well can yield The pump must immediately be stopped and the fault remedied Water Impurities e f there are impurities in the water the valve should be opened gradually as the water becomes clearer The pump should not be stopped until the water is clean otherwise the pump parts and the check valve may become clogged e When the water is clean the valve should be fully opened Minimum flow rate To ensure the necessary cooling of the motor the pump flow rate should never be set to a value lower than 2 gpm If the flow rate suddenly falls the reason might be that the pump is pumping more water than the well can yield The pump must be stopped and the fault correcte
15. owered into the well especially in 3 wells NOTE Do not lower or lift the pump using the motor cable 5 When the pump has been installed to the required depth the installation should be finished by means of a well seal Note that the dynamic water level should always be above the pump 6 Loosen the safety wire so that it becomes unloaded and lock it to the well seal using a cable clamp 7 Attach the supplemental information label at the electrical installation site 8 Complete the electrical connections Remember that a capacitor or a control box should NEVER be connected to a SQ SQE submersible pump Installation depths Maximum installation depth below the static water level 500 feet Minimum installation depths 1 75 below the dynamic water level Vertical installation During start up and operation the pump must always be completely submerged in water Horizontal installation The pump must be installed at least 1 75 ft below the dynamic water level If there is a risk that the pump might be covered by mud the pump must always be placed in a flow sleeve Note Do not lower or lift the pump with the motor cable 17 Generator Operation It is OK to operate the SQ SQE with a generator The generator must be sized 10 above the pumps P1 Input Power values MotrHP Min Generator Size Watts 1 8 1 2 A 1 2 3 4 B 1 1 C Page 9 Operating the Pump 18 Starting the Pump for the F
16. r Rating Copper Wire Size VOLTS HP 14 10 8 6 340 540 840 250 390 620 1390 1020 760 630 480 11 Splicing the Cable Splice the drop cable with the motor cable If the splice is carefully made it will be as efficient as any other portion of the cable and will be completely watertight There are a number of cable splicing kits available today epoxy filled rubber sealed etc Many perform well if the manufacturer s directions are followed carefully If one of these kits is not used we recommend the following method for splicing the motor cable to the drop cable Examine the motor cable and the drop cable carefully for damage Cut the motor leads off in a staggered manner Cut the ends of the drop cable so that the ends match up with the motor leads Be sure to match the colors Strip back and strip off one inch of insulation from each lead making sure to scrape the wire bare to obtain a good connection Be careful not to damage the copper conductor when stripping off the insulation Insert a properly sized Sta Kon type connector on each pair of leads again making sure that colors are matched Using Sta Kon crimping pliers indent the lugs Be sure to squeeze down hard on the pliers particularly when using large cable Form a piece of electrical putty tightly around each Sta Kon The putty should overlap on the insulation of the wire Use a good quality tape such as 33 Scotch Waterproof or Plymouth Rubber Company Sl
17. ruments are used the value measured will differ from the actual value The SQE pumps can be connected to a CU 300 status box Note The pump must never be connected to a capacitor or to another type of control box other than a CU 300 The pump must never be connected to an external frequency converter Motor protection The motor has built in automatic thermal overload protection and requires no additional motor protection Connection of motor The motor can be connected directly to the main circuit breaker Start stop of the pump will typically be done via a pressure switch see fig 5 Note The pressure switch must be rated for the maximum amps of the specific pump size Page 4 Installation Procedures 9 Making the Wiring Connections WARNING Reduced risk of electric shock during operation of this pump requires the provision of acceptable grounding If the means of connection to the supply connected box is other than grounded metal conduit ground the pump back to the service by connecting a copper conductor at least the size of the circuit supplying the pump Single Phase 2 wire Wiring Diagram for GRUNDFOS Motors 10 2 Wire Pump Quick Disconnect with Ground Pressure Switch Black A capacitor or control box should NEVER be connected to a SQ SQE submersible pump Fig 5 Page 5 Installation Procedures 10 Cable Sizing SINGLE PHASE 60 HZ Maximum Cable Length Motor Service to Entrance Moto
18. s tight 7 Assemble pump end and motor 8 Install the cable guard The pump is now ready for installation 7 Installation Postions Positional requirements The pump is suitable for installation however the pump shaft must never fall below the horizontal plane see fig 4 Fig 4 Page 3 vertical as well as horizontal Installation Procedures 8 Electrical connection General The electrical connection should be carried out by an authorized electrician in accordance with local regulations Before starting work on the pump make sure the N electricity supply has been switched off and that it cannot be accidentally switched on The pump must be grounded The pump must be connected to an external mains switch The supply voltage rated maximum current and power factor PF appear on the motor nameplate The required voltage for GRUNDFOS submersible MS3 MSE3 motors measured at the motor terminals is 6 10 of the nominal voltage during continuous operation including variation in the supply voltage and losses in cables If the pump is connected to an installation where a Ground Fault circuit breaker GFI is used as additional protection this circuit breaker must trip out when ground fault currents with DC content pulsating DC occur Supply voltage 1 x 100 115V or 1 x 200 240 V 6 10 50 60 Hz The current consumption can only accurately be measured by means of a true RMS instrument If other inst
19. the exclusion or limitation of implied warranties of merchantability and fitness for a particular purpose of incidental or consequential damages and some jurisdictions do not allow limitations on how long implied warranties may last or require you to pay certain expenses as set forth above Therefore the above limitations or exclusions may not apply to you This warranty gives you specific legal rights and you may also have other rights which vary from jurisdiction to jurisdiction The telephone number of our service and repair facilities central directory from which you can obtain the locations of our service and repair facilities is 1 800 333 1366 Federal Communications Commission Notice This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense Z 42 4 Fos 2X ZARY GRUNDFOS amp Leaders in Pump Technology Grundfos Pumps Corporation 3131 N B
20. use of the following instruments is not allowed during fault finding Insulation Resistance High voltage Test Test Test Note When measuring use RMS instruments Checking the motor and cable 1 Supply voltage Measure the voltage L1 The voltage should when the RMS between phase and motor is loaded be within the L2 Connectthe voltmeter range specified on Page 4 large to the terminals at the variations in supply voltage connections indicate poor electricity supply and the pump should be stopped until the problem has been corrected Measure the current RMS If the current exceeds the full load while the pump Is operating current there are the following at a constant discharge possible faults head if possible at capacity Poor connection in the leads where the motor is heavily possibly in the cable joint loaded For maximum Too low supply voltage see item 1 current see motor on Page 13 nameplate Environment During handling operation storage and transport all environment regulations dealing with the handling of hazardous materials must be observed When the pump is taken out of operation it must be ensured N that no hazardous material is left in the pump and in the riser pipe which can be injurous to persons and the environment Disposal Disposal of this product or paris of it must be carried out according to the following guidelines 1 Use the local public or private waste collection service 2 If su
21. usiness Park Ave Fresno CA 93727 Customer Service Centers Allentown PA Fresno CA Phone 800 333 1366 Fax 800 333 1363 Canada Oakville Ontario e Mexico Apodaca N L SpP TI 017 Rev 3 30 99 Visit our website at www us grundfos com PRINTED IN USA SAFETY WARNING Electrical Work WARNING Reduced risk of electric shock during operation of this pump requires the provision of acceptable grounding If the means of connection to the supply connected box is other than grounded metal conduit ground the pump back to the service by connecting a copper conductor at least the size of the circuit Supplying the pump to the grounding screw provided within the wiring compartment Pre Installation Checklist L Well Preparation If the pump is to be installed in a new well then the well should be fully developed and bailed or blown free of cuttings and sand The construction of the GRUNDFOS SQ SQE submersibles makes it resistant to abrasion however no pump made of any material can forever withstand the destructive wear that occurs when constantly pumping sandy water If this pump is used to replace an oil filled submersible or oil lubricated line shaft turbine in an existing well the well must be blown or bailed clear of oil 2 Make Sure You Have the Right Pump Determine the maximum depth of the well and the drawdown level at the pump s maximum capacity Pump selection and settin
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