Grundfos CM Series Installation And Operating Instructions Manual
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Grundfos CM Series Installation And Operating Instructions Manual

Grundfos CM Series Installation And Operating Instructions Manual

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Installation and operating instructions
Installation and operating instructions
http://net.grundfos.com/qr/i/95121197
Quick Guide (CM)
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Quick Guide (CM Self-priming)
http://net.grundfos.com/qr/i/98503799
GRUNDFOS INSTRUCTIONS

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Summary of Contents for Grundfos CM Series

  • Page 1 GRUNDFOS INSTRUCTIONS Installation and operating instructions Installation and operating instructions http://net.grundfos.com/qr/i/95121197 Quick Guide (CM) http://net.grundfos.com/qr/i/95121198 Quick Guide (CM Self-priming) http://net.grundfos.com/qr/i/98503799...

  • Page 2: Table Of Contents

    Original installation and operating instructions Read this document before installing the These installation and operating instructions product. Installation and operation must describe Grundfos CM pumps. comply with local regulations and accepted Sections 1-4 give the information necessary to be codes of good practice.

  • Page 3: Receiving The Product

    1.1.2 Other important notes 3.2 Installation of the pump Install the pump on a plane surface using the A blue or grey circle with a white graphical mounting holes in the motor base plate and a symbol indicates that an action must be minimum of four bolts.

  • Page 4: Pipes

    3.3 Pipes 3.3.1 Pipe connection (non-self-priming pumps) We recommend that you fit isolating valves on either Take care not to damage the pump when side of the pump. It is thus not necessary to drain the connecting the inlet and outlet pipes. system if the pump needs service.

  • Page 5: Alternative Connection Positions

    In such cases, use a motor suitable for condensing environments such as an IPX5 motor available from Grundfos. Alternatively, open the bottom drain hole in the motor flange by removing the plug. See fig. 7. This reduces...

  • Page 6: Electrical Connection

    These motors have built-in current- and Fig. 8 Examples of covers (not supplied by temperature-dependent motor protection in Grundfos) accordance with IEC 60034-11 and require no further motor protection. The motor protection is of the TP 3.7 Electrical connection 211 type which reacts to both slow- and quick-rising temperatures.

  • Page 7: Starting Up The Product

    3. Remove the filling plug. See fig. 10. For further information, please contact the frequency 4. Fill the pump housing and the inlet pipe converter supplier or Grundfos. completely with liquid until a steady stream of Self-priming pumps liquid runs out of the filling hole.

  • Page 8: Self-Priming Pumps

    6. Fill the pump housing and the inlet pipe Filling hole completely with liquid until a steady stream of liquid runs out of the filling hole. 7. Fit and tighten the filling plug(s). 8. Start the pump and wait until liquid is pumped. If you have used the filling hole in the pump, it may be necessary to repeat steps 1 to 8 to ensure that the pump is completely filled with liquid.

  • Page 9: Checking The Direction Of Rotation

    5. Product introduction 4.3 Checking the direction of rotation The description below applies to three-phase motors 5.1 Applications only. The motor fan cover has an installation indicator. The pumps are horizontal, multistage centrifugal See fig. 12. Based on the motor cooling air, it pumps designed for pumping of clean, thin and indicates the direction of rotation of the motor.

  • Page 10: Maintaining The Product

    6. Maintaining the product 5.2.2 Nameplate for the motor The motor name plate is positioned on the motor DANGER cooling fins. The data and information on the motor nameplate Electric shock are described in the table below. See the nameplate Death or serious personal injury in fig.

  • Page 11: Contaminated Products

    See fig. 10. to the pump in a visible position. Do not refit the plugs until the pump is taken into If Grundfos is requested to service the pump, it must operation again. be cleaned before it is returned. 7.3 Taking the product permanently out of...

  • Page 12: Fault Finding The Product

    8. Fault finding the product DANGER WARNING Electric shock Toxic liquids Death or serious personal injury Death or serious personal injury - Before starting any work on the product, - Wear personal protective equipment. make sure that the power supply has been switched off and that it cannot be accidentally switched on.
  • Page 13 Fault Cause Remedy The pump performance is Self-priming pumps only: unstable, and the pump is noisy. The differential pressure Close the tap gradually until the across the pump is too low. outlet pressure is stable and the noise has ceased. The pump runs, but gives Pump inlet pressure is too See 5.

  • Page 14: Technical Data

    CM pumps in relation to the ambient temperature without any consequence. Contact 9.2 Sound pressure level Grundfos for further information. See fig. 13. The sound pressure level of the pumps is lower than 70 dB(A). 9.3 Ambient temperature...

  • Page 15: Minimum Inlet Pressure

    1. Use the public or private waste collection service. 2. If this is not possible, contact the nearest x 10.2 - NPSH - H Grundfos company or service workshop. = Barometric pressure in bar. The crossed-out wheelie bin symbol on...
  • Page 16 Appendix Type Tliq,max Model PMax Insulation class TAmb Q nom Q nom m /h m /h H nom H nom H max H max Fig. 1 Pump nameplate with data Water Circulating Pump Water Circulating Pump 1Z28 1Z28 DK-8850 BJERRINGBRO DENMARK Made in Hungary Fig.
  • Page 17 NPSH CM 1 60 Hz 50 Hz 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 Q [m³/h] Fig. 4 NPSH curves for CM 1 NPSH CM 3 60 Hz 50 Hz Q [m³/h] Fig.
  • Page 18 NPSH CM 5 60 Hz 50 Hz 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 Q [m³/h] Fig. 6 NPSH curves for CM 5 NPSH CM 10 60 Hz 50 Hz 9 10 11 12 13 14 15 16 17 Q [m³/h] Fig.
  • Page 19 NPSH CM 15 60 Hz 50 Hz 26 Q [m³/h] Fig. 8 NPSH curves for CM 15 NPSH CM 25 60 Hz 50 Hz 8 10 12 14 16 18 20 22 24 26 28 30 32 34 Q [m³/h] Fig.
  • Page 20 (°C) Fig. 10 Vapour pressure...
  • Page 21 Appendix Safety declaration Please copy, fill in and sign this sheet and attach it to the pump returned for service. Media and application Which media has the pump been used for: ______________________ In which application has the pump been used: ____________________ Fault description If possible please make a circle around the faulty part.
  • Page 22 Argentina China Hong Kong Bombas GRUNDFOS de Argentina S.A. GRUNDFOS Pumps (Shanghai) Co. Ltd. GRUNDFOS Pumps (Hong Kong) Ltd. Ruta Panamericana km. 37.500 Centro 10F The Hub, No. 33 Suhong Road Unit 1, Ground floor Industrial Garin Minhang District Siu Wai Industrial Centre 1619 Garín Pcia.
  • Page 23 Malaysia Serbia Turkey GRUNDFOS Pumps Sdn. Bhd. Grundfos Srbija d.o.o. GRUNDFOS POMPA San. ve Tic. Ltd. 7 Jalan Peguam U1/25 Omladinskih brigada 90b Sti. Glenmarie Industrial Park 11070 Novi Beograd Gebze Organize Sanayi Bölgesi 40150 Shah Alam Phone: +381 11 2258 740...
  • Page 24 95121197 04.2020 ECM: 1285506 www.grundfos.com...

This manual is also suitable for:

Cm 1Cm 3Cm 5Cm 10Cm 15Cm 25

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