Grundfos SQ Series Installation And Operating Instructions Manual
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- Page 1 GRUNDFOS INSTRUCTIONS SQ, SQE Installation and operating instructions SQ, SQE Installation and operating instructions Other languages http://net.grundfos.com/qr/i/96160909...
- Page 3 SQ, SQE English (GB) Installation and operating instructions ........5 Български...
- Page 4 Português (PT) Instruções de instalação e funcionamento ......328 Română (RO) Instrucţiuni de instalare şi utilizare ........347 Русский...
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Page 5: Table Of Contents
English (GB) Installation and operating instructions Original installation and operating instructions Disposing of the product ..23 Table of contents General information ... . . 6 Symbols used in this document . -
Page 6: General Information
1. General information 2. Symbols used in this document This appliance can be used by children DANGER aged from 8 years and above and persons Indicates a hazardous situation which, if with reduced physical, sensory or mental not avoided, will result in death or serious capabilities or lack of experience and personal injury. -
Page 7: General
SQ and SQE: 5 to 9. Before the SQ/SQE pump is lowered into the SQE-NE: Please contact Grundfos. borehole, this page should be filled in with the relevant nameplate data. Liquid temperature These installation and operating instructions must be... -
Page 8: Technical Data
4. Technical data 4.1 Storage Storage temperature: -20 °C to +60 °C. Supply voltage 4.1.1 Frost protection 1 x 200-240 V - 10 %/+ 6 %, 50/60 Hz, PE. If the pump has to be stored after use, it must be Operation via generator: As a minimum, the stored on a frost-free location or it must be ensured generator output must be equal to the motor P1 [kW]... -
Page 9: Preparation
5. Preparation 5.2 Positional requirements The pump is suitable for vertical as well as horizontal Grundfos MS 3 and MSE 3 submersible motors have installation, however, the pump shaft must never fall water-lubricated slide bearings. No additional below the horizontal plane. See fig. Positional lubrication is required. -
Page 10: Liquid Temperatures/Cooling
• pump diameter conditions, the pump may stop. Please contact • temperature of pumped liquid Grundfos. • flow past the motor to the pump suction strainer. SQ/SQE pump in a borehole Pos. Description Liquid temperature... -
Page 11: Electrical Connection
3 mm in all poles. ‐ If the motor cable is damaged, it must be replaced by Grundfos, an author- ised Grundfos service workshop or similarly qualified persons to avoid a hazard. -
Page 12: Motor Protection
6.2 Motor protection 7. Installation The motor incorporates thermal overload protection 7.1 General and requires no additional motor protection. WARNING 6.3 Connection of motor Electric shock The motor incorporates a starter device and can Death or serious personal injury therefore be connected directly to the mains. ‐... -
Page 13: Assembly Of Pump Part And Motor
See fig. Removal of non-return valve Assembly of pump part and motor. SQE-NE is supplied without non-return valve. The non-return valve can be fitted in a Grundfos 156 mm service workshop. Assembly of pump part and motor Motor (P2) -
Page 14: Fitting The Cable Plug To The Motor
The motor plug must under no circum- stances be removed by the user. ‐ The cable with plug must be fitted or removed by an authorised Grundfos service workshop or a similarly quali- fied person. The following description is exclusively intended for service personnel. -
Page 15: Cable Sizing
It is recommended to join the submersible drop cable If the power factor (PF) of the motor unit equals 1.0, and the motor cable by means of a Grundfos cable you can use this equation to calculate the maximum termination kit, type KM. -
Page 16: Pipework Connection
7.8 Pipework connection Where flanged pipes are used, the cable clips should be fitted above and below each joint. If a tool, e.g. a chain pipe wrench, is used when the riser pipe is fitted to the pump, the pump must only be 7.8.2 Installation depths gripped by the pump discharge chamber. -
Page 17: Start-Up
8. Start-up Make sure that the well is capable of yielding a minimum quantity of water corresponding to the pump capacity. Do not start the pump until it is completely submerged in the liquid. Start the pump and do not stop it until the pumped liquid is completely clean, as otherwise the pump parts and the non-return valve may choke up. -
Page 18: Well System Pressure Overload
9.3 Well system pressure overload In order to provide protection against overpressure, install a pressure relief valve downstream of the well head. The setpoint of the pressure relief valve must be at least 30 psi above the pressure setting. If you install a relief valve, we recommend that you connect it to an appropriate drainage point. Using Pmin and Qmax, the minimum diaphragm tank size, precharge pressure and pressure switch settings can be found in the guideline table below: Example... -
Page 19: Built-In Protection
If the pump has been stopped as a result of dry The pumps can be serviced at a Grundfos service running, it will start automatically after 5 minutes. centre. If the pump is restarted and the borehole is empty, the 10.1 Contaminated pumps... -
Page 20: Fault Finding Chart
11. Fault finding chart CAUTION Electric shock Minor or moderate personal injury ‐ Before starting any work on the pump/motor, make sure that the power supply has been switched off and that it cannot be accidentally switched on. 11.1 The pump does not run. Cause Remedy The fuses in the electric installation are blown. -
Page 21: Frequent Starts And Stops
Cause Remedy The riser pipe is defective. Replace the riser pipe. Undervoltage has occurred. Check the power supply. 11.4 Frequent starts and stops. Cause Remedy The differential of the pressure switch between the Increase the differential. However, the stop pressure start and stop pressures is too small. -
Page 22: Checking The Power Supply
12. Checking the power supply WARNING Electric shock Death or serious personal injury ‐ Before starting any work on the pump/motor, make sure that the power supply has been switched off and that it cannot be accidentally switched on. 1. Supply voltage Measure the voltage (RMS) be- The voltage should, when the motor is loaded, tween phase and neutral. -
Page 23: Environment
In case of doubt, please contact Grundfos or the local authorities. - Page 24 Appendix A A.1. Appendix Nameplates to be filled in Pumpunit: Model: Model: SQ/SQE SQ/SQE /h H: Pumpunit: Stages: Stages: P2 motor: /h H: A P1: Weight: P2 motor: Weight: MADE IN MADE IN Rotation direction Rotation direction...
- Page 25 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 26 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 27 96160909 05.2022 ECM: 1334401 www.grundfos.com...
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