Grundfos SL Instructions Manual
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- Service instructions manual (99 pages) ,
- Installation and operating instructions manual (41 pages) ,
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Summary of Contents for Grundfos SL
- Page 1 GRUNDFOS INSTRUCTIONS SL pumps, range 56 18-41 kW, 50 Hz Installation and operating instructions QR92777903 Installation and operating instructions (all available languages) http://net.grundfos.com/qr/i/92777903...
- Page 3 SL pumps, range 56 English (GB) Installation and operating instructions ........5 Български...
- Page 4 安裝操作手冊 ..........827 SL pumps, range 56...
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Page 5: Table Of Contents
English (GB) Installation and operating instructions Original installation and operating instructions Table of contents General information ..........6 Hazard statements . -
Page 6: General Information
Action to avoid the hazard. 1.2 Notes The symbols and notes below may appear in Grundfos installation and operating instructions, safety instructions and service instructions. A blue or grey circle with a white graphical symbol indicates that an action must be taken. -
Page 7: Product Introduction
2. Product introduction 2.1 Product description ® The 18-41 kW SL pumps are a range of Open S-tube impeller pumps specifically designed for pumping sewage and wastewater in a wide range of municipal and industrial applications. SL 18-41 kW pump Pos. -
Page 8: Identification
3. Identification 3.1 Nameplate Pos. Description EU Notified Body approving the Ex manufacturer EU Explosion protection certificate No UK Approved Body approving the Ex manufacturer UK Explosion protection certificate No Marking of explosion protection and Ex description Pump type designation Pump type designation (line 2) Model number Ambient temperature... -
Page 9: Type Key
Pos. Description Frequency Insulation class Production code (YYWW) Weight 3.2 Type key Example: SL.56M.210.4.51D.200.Z Code Explanation Designation Sewage pump without cooling jacket Pump type Frame 56 Frame size Medium pressure Pressure range Low pressure Power P2 x 10 [21 kW]... -
Page 10: Receiving The Product
4. Receiving the product The pump is supplied from the factory in a proper packaging in which it should remain until installation. Make sure that the pump cannot roll or fall over. Pump packaging... -
Page 11: Transporting The Product
4.1 Transporting the product All lifting equipment must be rated for the purpose and checked for damage before lifting the pump. The lifting equipment rating must not be exceeded. The pump weight is stated on the nameplate. WARNING Crushing hazard Death or serious personal injury ‐... -
Page 12: Lifting The Product
4.3 Lifting the product DANGER Crushing hazard Death or serious personal injury ‐ Always check the lifting bracket and chain for corrosion or wear before lifting. ‐ Always lift the pump by its lifting bracket or by a fork-lift truck. DANGER Crushing hazard Death or serious personal injury... -
Page 13: Mechanical Installation
5. Mechanical installation Fit the extra nameplate supplied with the pump at the installation site, where it is easy to access and read. Observe all safety regulations at the installation site. Make sure there is adequate fresh air supply in the pit. DANGER Electric shock Death or serious personal injury... -
Page 14: Vertical Installation On Auto-Coupling
5.2 Vertical installation on auto-coupling Pumps for permanent, vertical installation in a pit can be installed on a stationary auto-coupling unit and operated completely or partially submerged in the pumped liquid. Do not use elastic elements or bellows to connect the pipes. In some installations, a plinth is required beneath the auto coupling to ensure correct installation of the pump. - Page 15 Lowering the pump along the guide rails Connecting the pump to auto coupling Submerged installation on auto coupling The free end of the cable must not be submerged as water may penetrate into the motor.
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Page 16: Pullout Strengths For Anchor Bolts
5.3 Pullout strengths for anchor bolts Bolts Pull-out strength for a single bolt Auto-coupling base unit [mm] [kN] DN 100 DN 150 DN 200 DN 250 DN 300 The pull-out strengths stated are without safety factor. The required safety factor may depend on the materials and method used for anchoring. -
Page 17: Electrical Connection
6. Electrical connection DANGER Electric shock Death or serious personal injury ‐ Before starting any work on the product, make sure that the power supply is switched off and that it cannot be switched on unintentionally. WARNING Electric shock Death or serious personal injury ‐... -
Page 18: Pump Wiring Diagram
The pump can be operated with a frequency converter according to the specifications of the manufacturer. 6.1 Pump wiring diagram -t° -t° -t° Pump connection, standard version Pos. Description Moisture switch (motor top) Leakage switch... - Page 19 6.1.1 Motor wiring diagrams Delta connection Star connection External STAR-DELTA STAR DELTA Star-delta connection...
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Page 20: Frequency Converter Operation
6.2 Frequency converter operation CAUTION Electric shock Minor or moderate personal injury ‐ Be aware of possible residual voltage being present. In principle, all three-phase motors can be connected to a frequency converter. However, frequency converter operation often exposes the motor insulation system to a heavier load and may cause the motor to be more noisy due to eddy currents caused by voltage peaks. -
Page 21: Power Cable Data
6.3 Power cable data Cable type Outer cable diameter Minimum bending radius min. max. [mm] 4 × 10 23.1 25.1 4 × 16 26.6 29.6 Screened power cable 3 × 25 + 3G16/3 25.3 28.3 3 × 35 + 3G16/3 28.3 31.3 4 ×... -
Page 22: Thermal Switches
6.5 Thermal switches Three Klixon bimetallic thermal switches are built into the stator windings. A contact opens in case of overtemperature (150 °C). The motor insulation is class H (180 °C). The supply voltage to the thermal switches must be 12-24 V DC. The thermal switches are connected to the control cable and must be connected to the safety circuit of the separate pump controller. -
Page 23: Startup
7. Startup DANGER Electric shock Death or serious personal injury ‐ Make sure the pump is grounded. WARNING Electric shock Death or serious personal injury ‐ Make sure the connections are correct. CAUTION Hearing impairment Minor or moderate personal injury ‐... -
Page 24: Storage
8. Storage During storage, the pump must be protected against moisture and heat. After a period of storage, inspect the pump before putting it into operation. Make sure that the impeller can rotate freely. Pay attention to the condition of the shaft seals, O-rings and the cable entries. Storage temperature is -20 °C to +55 °C. -
Page 25: Maintenance And Service
9. Maintenance and service DANGER Electric shock Death or serious personal injury ‐ Before starting any work on the product, make sure that the power supply is switched off and it cannot be switched on unintentionally. CAUTION Crushing hazard Minor or moderate personal injury ‐... -
Page 26: Pump Overhaul
• Ball bearings: Check the shaft for noisy or heavy operation; turn the shaft manually. Replace defective bearings. A general overhaul of the pump is usually required in case of defective bearings or poor motor function. This work must be carried out by an authorised service workshop. Bearings are lubricated for lifetime. -
Page 27: Impeller Clearance Inspection
Normal leakage rate for the shaft seal is 2.000 ml / 12.000 operating hours. If more than 5.000 ml fluid can be drained from the leakage chamber, the shaft seal must be replaced. WARNING Pressurised system Death or serious personal injury ‐... -
Page 28: Impeller Clearance Adjustment
9.4 Impeller clearance adjustment Tighten the set screws carefully to avoid damage to the bearings. Tip gap adjustment parts Pos. Description Suction cover Set screw Fastening screw Suction flange Clearance screws Pos. Description Set screws Fastening screws... -
Page 29: Contaminated Pumps
‐ Flush the pump thoroughly with clean water and rinse the pump parts after dismantling. Before returning the product for service, contact Grundfos with details about the pumped liquid. Otherwise, Grundfos can deny to service the product. Any application for service must include details about the pumped liquid. -
Page 30: Troubleshooting
10. Troubleshooting DANGER Electric shock Death or serious personal injury ‐ Before starting any work on the product, make sure that the power supply is switched off and it cannot be switched on unintentionally. DANGER Electric shock Death or serious personal injury ‐... - Page 31 Fault Cause Remedy The valves are closed or blocked. The non-return valve Clean or replace the valves. is not operating. There is air in the pump or the Vent the pump and the inlet pipe. inlet pipe. Increase the stop level in the pit. The pumped liquid is too Dilute the pumped liquid.
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Page 32: Technical Data
Motor liquid The motor is factory-filled with Grundfos SML3 motor liquid which is frost-resistant until -20 °C. The motor liquid helps to transfer the heat generated by the motor to the cooling chamber and to the pumped liquid to pass on the outside of the pump. -
Page 33: Disposing Of The Product
This product or parts of it must be disposed of in an environmentally sound way. 1. Use the public or private waste collection service. 2. If this is not possible, contact the nearest Grundfos company or service workshop. The crossed-out wheelie bin symbol on a product means that it must be disposed of separately from household waste. - Page 34 Argentina China Greece Bombas GRUNDFOS de Argentina S.A. GRUNDFOS Pumps (Shanghai) Co. Ltd. GRUNDFOS Hellas A.E.B.E. Ruta Panamericana km. 37.500industin 10F The Hub, No. 33 Suhong Road 20th km. Athinon-Markopoulou Av. 1619 - Garín Pcia. de B.A. Minhang District P.O. Box 71 Tel.: +54-3327 414 444...
- Page 35 Fax: +66-2-725 8998 Fax: + 370 52 395 431 Москва, RU-109544, Russia Turkey Тел. (+7) 495 564-88-00 (495) 737-30-00 Malaysia GRUNDFOS POMPA San. ve Tic. Ltd. Факс (+7) 495 564 8811 GRUNDFOS Pumps Sdn. Bhd. Sti. E-mail grundfos.moscow@grundfos.com 7 Jalan Peguam U1/25 Gebze Organize Sanayi Bölgesi...
- Page 36 92777903 12.2022 ECM: 1353113 www.grundfos.com...
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