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Grindex Minette 8102.172 Installation, Operation And Maintenance Manual

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Installation, Operation, and
Maintenance Manual
90017601_4.0
8102.172 Minette

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Summary of Contents for Grindex Minette 8102.172

  • Page 1 Installation, Operation, and Maintenance Manual 90017601_4.0 8102.172 Minette...
  • Page 3 Table of Contents Table of Contents 1 Introduction and Safety......................3 1.1 Introduction........................3 1.2 Safety terminology and symbols..................3 1.3 User safety........................4 1.4 Special hazards......................4 1.4.1 Working in temporary installations................4 1.4.2 Working with solvents..................... 4 1.4.3 Biological hazards....................5 1.4.4 Wash the skin and eyes..................5 1.5 Protecting the environment....................5 1.6 End-of-life product disposal...................
  • Page 4 Table of Contents 5.3 Clean the pump......................25 6 Maintenance........................26 6.1 Precautions........................26 6.2 Maintenance guidelines....................26 6.2.1 Clean the shaft before seal installation..............27 6.3 Torque values......................27 6.4 Service.........................28 6.4.1 Inspection......................28 6.4.2 Overhaul....................... 29 6.5 Change the oil......................30 6.6 Replace the impeller....................31 6.6.1 Remove the impeller.....................
  • Page 5 This includes any modification to the equipment or use of parts not provided by Grindex. If there is a question regarding the intended use of the equipment, please contact a Grindex representative before proceeding.
  • Page 6 1 Introduction and Safety Special symbols Some hazard categories have specific symbols, as shown in the following table. Electrical hazard Magnetic fields hazard Electrical Hazard: CAUTION: 1.3 User safety All regulations, codes, and health and safety directives must be observed. The site •...
  • Page 7 • Clean-up of spills Exceptional sites CAUTION: Radiation Hazard Do NOT send the product to Grindex if it has been exposed to nuclear radiation, unless Grindex has been informed and appropriate actions have been agreed upon. 1.6 End-of-life product disposal Handle and dispose of all waste in compliance with local laws and regulations.
  • Page 8 1 Introduction and Safety This marking on the product, accessories or literature indicates that the product should not be disposed of with other waste at the end of its working life. 1.7 Spare parts CAUTION: Only use the manufacturer’s original spare parts to replace any worn or faulty components. The use of unsuitable spare parts may cause malfunctions, damage, and injuries as well as void the warranty.
  • Page 9 2 Transportation and Storage 2 Transportation and Storage 2.1 Examine the delivery 2.1.1 Examine the package 1. Examine the package for damaged or missing items upon delivery. 2. Record any damaged or missing items on the receipt and freight bill. 3.
  • Page 10 2 Transportation and Storage 2.3 Temperature ranges for transportation, handling and storage Handling at freezing temperature At temperatures below freezing, the product and all installation equipment, including the lifting gear, must be handled with extreme care. Make sure that the product is warmed up to a temperature above the freezing point before starting up.
  • Page 11 Standard Ex-proof MSHA Drainage Sludge version Minette 8102.172 3.2 Pump design The pump is submersible, and driven by an electric motor. Intended use The product is intended for moving waste water, sludge, raw and clean water. Always follow Technical Reference the limits given in on page 42.
  • Page 12 3 Product Description 3.3.1 Level regulators About level regulators Starting and stopping the pump at different water levels can be manual or automatic. If automatic start and stop is required, a level regulator can be ordered (as an option). The option is only available for standard pumps.
  • Page 13 3 Product Description 12. Degree of protection 13. Maximum capacity 14. Rated current 15. Direction of the start reaction 16. Direction of the impeller rotation 17. Maximum head 18. Serial number 19. Rated voltage 20. Pump model 21. UKCA marking 3.5 Motor regulation This product is submersible and therefore exempted from the motor efficiency requirement, in accordance with EU commission regulation 2019/1781 Article 2(2)(e).
  • Page 14 4 Installation 4 Installation 4.1 Precautions Before starting work, make sure that the safety instructions have been read and understood. DANGER: Electrical Hazard Before starting work on the unit, make sure that the unit and the control panel are isolated from the power supply and cannot be energized.
  • Page 15 4 Installation Figure 1: Settling pump-sump Discharge line requirements The discharge line can be run vertically or horizontally, but must be without sharp bends. Proper horizontal and vertical installation Improper installation with a sharp bend Fasteners • Only use fasteners of the correct size and material. •...
  • Page 16 4 Installation Check the Make sure that the phase sequence is correct. For more information, see phase sequence: Pumps with built-in motor protection on page 21. 4.4 Make the electrical connections 4.4.1 General precautions DANGER: Electrical Hazard Before starting work on the unit, make sure that the unit and the control panel are isolated from the power supply and cannot be energized.
  • Page 17 4 Installation Motor and short-circuit protection NOTICE: A qualified electrician must select the size of motor protection breakers and fuses. The size must be chosen for the specific motor data such as rated current and starting current. It is important that the short-circuit protection is not over-dimensioned. Over-dimensioned fuses or motor protection breakers decrease the protection for the motor.
  • Page 18 4 Installation Ground (earth) conductor length The ground (earth) conductor must be longer than the phase conductors in the junction box of the unit. The table shows how much longer, than the phase conductors, the ground (earth) conductor must be. Pump Extra length of ground conductor 8102.172...
  • Page 19 4 Installation Figure 2: Aluminum foil on the control element. c) Put a white shrink tube over the drain wire. d) Twist T1+T2 and T3+T4. e) Put a shrink tube over the control element. Make sure that the conductive aluminum foil and drain wire are covered. ™...
  • Page 20 4 Installation DANGER: Explosion/Fire Hazard Special rules apply to installations in explosive or flammable atmospheres. Do not install the product or any auxiliary equipment in an explosive zone unless it is rated explosion-proof or intrinsically-safe. If the product is rated explosion-proof or intrinsically-safe, then see the specific explosion-proof information in the safety chapter before taking any further actions.
  • Page 21 4 Installation Code Description White Orange Green GNYE Green-Yellow Grey Blue Yellow Terminal plate markings, 1–phase Marking Description Auxiliary winding Common Main winding Stator leads and thermal contacts connection to the terminal plate Terminal plate 8101.160 8101.172 8102.172 8109.282 STATOR LEADS AND THERMAL CONTACTS 1-PHASE STATOR LEADS 1-ph U1,Z5 serial...
  • Page 22 4 Installation Motor cable and starter unit connection to the terminal plate SYMBOLS AND DENOMINATIONS Terminal plate BN=Brown =Terminal plate BK=Black =Screen WH=White 8101.160 =Ground OG=Orange =Functional ground 8101.172 GN=Green GNYE=Green-Yellow =Crimp isolation for 8102.172 RD=Red cable, if not in use 8109.282 GY=Grey =Socket - Plug...
  • Page 23 4 Installation 4.5 Check the impeller rotation: Pumps without built-in motor protection ™ Follow this procedure if your product does not have the rotation control SMART CAUTION: Crush Hazard The starting jerk can be powerful. Make sure nobody is close to the unit when it is started. Check the direction of rotation each time the cable has been re-connected and after phase or total supply failure.
  • Page 24 4 Installation Figure 4: Start reaction 1. Connect the pump to power as follows: Condition Action The pump has a CEE plug with internal phase Connect the plug. shifter. The pump has a phase shifter with an on/off Turn the knob on the phase shifter in either switch.
  • Page 25 4 Installation Condition Action The pump has a phase shifter with an on/off 1. Turn the knob on the phase shifter to neutral switch. position. 2. Wait until the motor has stopped. 3. Turn the knob to the opposite position from before.
  • Page 26 5 Operation 5 Operation 5.1 Precautions Before taking the unit into operation, check the following: • All recommended safety devices are installed. • The cable and cable entry have not been damaged. • All debris and waste material has been removed. NOTICE: Never operate the pump with the discharge line blocked, or the discharge valve closed.
  • Page 27 5 Operation CAUTION: Crush Hazard The starting jerk can be powerful. Make sure nobody is close to the unit when it is started. CAUTION: Thermal Hazard The surfaces or parts of the unit may become hot during operation. Allow surfaces to cool before starting work, or wear heat-protective clothing.
  • Page 28 6 Maintenance 6 Maintenance 6.1 Precautions Before starting work, make sure that the safety instructions have been read and understood. DANGER: Crush Hazard Moving parts can entangle or crush. Always disconnect and lock out power before servicing to prevent unexpected startup. Failure to do so could result in death or serious injury. DANGER: Inhalation Hazard Before entering the work area, make sure that the atmosphere contains sufficient oxygen and no toxic gases.
  • Page 29 6 Maintenance Figure 5: Example of O-ring adjacent surfaces During the reassembly, always make sure that existing index markings are in line. The reassembled drive unit must always be insulation-tested and the reassembled pump must always be test-run before normal operation. 6.2.1 Clean the shaft before seal installation Before a new mechanical seal is installed, the shaft must be cleaned and degreased.
  • Page 30 6 Maintenance 10.9 1840 (2.9) (10) (24) (48) (84) (204) (399) (689) (1357) 12.9 1120 2210 (3.6) (7.2) (13) (30) (58) (100) (245) (480) (825.1) (1630) Table 3: Brass, torque Nm (lbf·ft) 2.7 (2.0) (8.1) (16.2) Hexagon screws with countersunk heads For hexagon socket head screws with countersunk head, maximum torque for all property classes must be 80% of the values for property class 8.8.
  • Page 31 6 Maintenance Service item Action Pipes, valves, 1. Check for worn or damaged parts. and other 2. Adjust and/or replace if necessary. peripheral equipment Impeller 1. Check for worn or damaged parts. 2. Adjust and/or replace if necessary. Wear on the impeller or surrounding parts necessitates fine adjustments of the impeller or replacement of worn parts.
  • Page 32 6 Maintenance Service item Action Support and main bearing Replace the bearings with new bearings. Mechanical seal Replace with new seal units. 6.5 Change the oil A paraffin oil with viscosity close to ISO VG32 is recommended. The pump is delivered from the factory with this type of oil.
  • Page 33 6 Maintenance Fill with oil 1. Replace the oil screw O-ring. 2. Turn the pump so that the oil hole faces up and fill by using new oil. Fill until the oil level reaches the inlet hole. Pump Oil Quantity Liters Quarts 8102.172...
  • Page 34 6 Maintenance 2. Loosen the impeller: a) Lock the impeller to prevent rotation. Use pliers, a screwdriver, or similar. b) Remove the impeller screw and the washer. 3. Remove the diffuser. 4. Remove the impeller: a) Lock the impeller to prevent rotation. Use pliers, a screwdriver, or similar.
  • Page 35 6 Maintenance 6.6.2 Install the impeller 1. Prepare the shaft: a) Polish off any flaws by using a fine emery cloth. The end of the shaft must be clean and free from burrs. b) Coat the inner conical, the outer cylindrical surfaces, and the thread of the conical sleeve with a thin layer of grease.
  • Page 36 6 Maintenance 6. Assemble the impeller with the conical sleeve onto the shaft. 7. Mount the diffuser part and tighten. Continuously check that the impeller can rotate easily. Tightening torque: 22 Nm (16.2 ft-lb) If the impeller cannot rotate easily, the shaft may have been displaced relative to the main bearing.
  • Page 37 6 Maintenance 10. Mount the strainer and fasten with the washers and screws. Tightening torque: 22 Nm (16.2 lbf·ft) 8102.172 Minette Installation, Operation, and Maintenance Manual...
  • Page 38 7 Troubleshooting 7 Troubleshooting 7.1 General precautions Before starting work, make sure that the safety instructions have been read and understood. DANGER: Inhalation Hazard Before entering the work area, make sure that the atmosphere contains sufficient oxygen and no toxic gases. 7.2 Electrical troubleshooting DANGER: Electrical Hazard Troubleshooting a live control panel exposes personnel to hazardous voltages.
  • Page 39 7 Troubleshooting Cause Remedy The pump does not start Check that: automatically, but can be started • The start level regulator is functioning. Clean or replace if manually. necessary. • All connections are intact. • The relay and contactor coils are intact. •...
  • Page 40 7 Troubleshooting Cause Remedy The phase sequence may be 1. Pull out the plug. incorrect. 2. Do one of the following: – Shift two phases by turning two contact pins with a screwdriver NOTICE: Do not take the plug apart. WS002614A Figure 7: CEE plug –...
  • Page 41 7 Troubleshooting Cause Remedy The pump is unable to empty the Check that: sump to the stop level. • There are no leaks from the piping and/or discharge connection. • The impeller is not clogged. • The non-return valve(s) are functioning properly. •...
  • Page 42 7 Troubleshooting Cause Remedy The motor protection is set too Set the motor protection according to the data plate and if applicable low. the cable chart. The impeller is difficult to rotate • Clean the impeller. by hand. • Clean out the wet well. •...
  • Page 43 7 Troubleshooting NOTICE: Do NOT override the motor protection repeatedly if it has tripped. Doing so may result in equipment damage. Cause Remedy ™ The impeller rotates in the wrong • If it is a 3-phase pump without SMART , then transpose two direction.
  • Page 44 8 Technical Reference 8 Technical Reference 8.1 Application limits Data Description Media (liquid) temperature Maximum 40°C (104°F) pH of the pumped media (liquid) 5–8 Media (liquid) density 1100 kg/m³ (9.2 lb for each US gal) maximum Depth of immersion Maximum 20 m (65 ft) Maximum permissible working pressure 1.8 bar (26.1 psi) Other...
  • Page 45 8 Technical Reference Voltage, V Rated current, A Starting current, A Power factor, cos φ 0.98 0.96 3-phase, 50 Hz Motor type: • 2,800 rpm • Rated output 2.2 kW (3.0 hp) • Maximum power consumption 2.7 kW (3.6 hp) Voltage, V Rated current, A Starting current, A...
  • Page 46 8 Technical Reference Voltage, V Rated current, A Starting current, A Power factor, cos φ 240 D 0.78 240 Y parallel 10.0 0.76 380 Y 0.86 380 Y parallel 400 Y 0.83 400 Y parallel 0.85 440 D serial 440 Y 0.91 440 Y serial 0.88...
  • Page 47 8 Technical Reference Figure 9: Standard version 8.5 Performance curves Test standard Pumps are tested in accordance with ISO 9906:2012, HI 11.6:2012. 8102.172 Minette Installation, Operation, and Maintenance Manual...
  • Page 48 8 Technical Reference Standard pump version, 50 Hz P [kW] 50 Hz, 3~ 50 Hz, 1~ H [m] 50 Hz, 3~ 50 Hz, 1~ Q [l/s] WS004718A Standard pump version, 60 Hz P [hp] / [kW] 60 Hz, 3~ 60 Hz, 1~ H [ft] / [m] 60 Hz, 3~ 60 Hz, 1~...
  • Page 52 The original instruction is in English. All non-English instructions are translations of the original instruction. © 2019 Grindex Grindex is a trademark of Xylem Inc. or one of its subsidiaries. All other trademarks or registered trademarks are property of their respective owners. 90017601_4.0_en-US_2024-11_IOM_8102.172 Minette...