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

Grundfos CM Installation And Operating Instructions Manual

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CM
Installation and operating instructions
CM
Safety instructions
(all available languages)
http://net.grundfos.com/qr/i/99126136
CM Self-priming
Quick guide
http://net.grundfos.com/qr/i/98503799
GRUNDFOS INSTRUCTIONS
CM
Quick guide
http://net.grundfos.com/qr/i/95121198
CM
Service instructions
(all available languages)
http://net.grundfos.com/qr/i/99698874

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Summary of Contents for Grundfos CM

  • Page 1 GRUNDFOS INSTRUCTIONS Installation and operating instructions Safety instructions Quick guide (all available languages) http://net.grundfos.com/qr/i/95121198 http://net.grundfos.com/qr/i/99126136 CM Self-priming Service instructions Quick guide (all available languages) http://net.grundfos.com/qr/i/98503799 http://net.grundfos.com/qr/i/99698874...
  • Page 3 English (GB) Installation and operating instructions ........4 Appendix A .

  • Page 4: Table Of Contents

    English (GB) Installation and operating instructions Original installation and operating instructions When startup is attempted, the pump starts, but delivers no pressure or flow ..18 Table of contents The pump runs, but does not deliver the rated flow .

  • Page 5: General Information

    Children must not use or play with this product. 1.1 Hazard statements The symbols and hazard statements below may appear in Grundfos installation and operating instructions, safety instructions and service instructions. DANGER Indicates a hazardous situation which, if not avoided, will result in death or serious personal injury.

  • Page 6: Product Introduction

    2. Product introduction 2.2.2 Nameplate for the motor The motor name plate is positioned on the motor 2.1 Applications cooling fins. The data and information on the motor nameplate The pumps are horizontal, multistage centrifugal are described in the table below. See the nameplate pumps designed for pumping of clean, thin and non- in the figure about nameplate for the motor in the flammable liquids, not containing solid particles or...

  • Page 7: Receiving The Product

    4. Mechanical installation Pos. Description Before installing the pump, check that the pump type NEMA locked-rotor code and parts are as ordered. NEMA design class CC122B mark CAUTION Hot or cold surface CE mark Minor or moderate personal injury cURus mark ‐...

  • Page 8: Pipes

    Related information Pump Non-self-priming Self-priming position pumps pumps 4.2.2 Pipe connection (self-priming pumps) ● ● 4.2.1 Pipe connection (non-self-priming pumps) Take care not to damage the pump when connecting the inlet and outlet pipes. ● ● Torque: 50-60 Nm. The stated torque must not be exceeded.

  • Page 9: 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 the figure below.

  • Page 10: Electrical Connection

    105 °C (221 °F). The power cable has to fulfil the 450/750 V voltage level requirement of an H07 cable. The allowed Examples of covers (not supplied by Grundfos) minimum cross section for the cables is 4 × 1.0 mm Cable gland...

  • Page 11: Connection Of Wires In Terminal Box

    For further information, please contact the frequency three-phase motors up to 3 kW. converter supplier or Grundfos. The thermistors are designed according to DIN Self-priming pumps 44082. The motor protection is of the TP 211...

  • Page 12: Starting Up The Product

    6. Starting up the product If there is a risk of condensation in the motor, remove the motor drain plug before startup and keep the drain hole open during operation. See the figure about motor drain plug in the section on avoiding condensation in the motor.

  • Page 13: Checking The Direction Of Rotation

    6.3 Checking the direction of rotation 3. Open a tap close to the pump so that air can escape. The description below applies to three-phase motors only. 4. Remove the filling plug in the pump. See the figure below. The motor fan cover has an installation indicator. See the figure below.

  • Page 14: Service

    The product will be classified as contaminated if it has been used for a liquid which is injurious to health or WARNING toxic. If you request Grundfos to service the product, Corrosive liquids contact Grundfos with details about the pumped liquid Death or serious personal injury before returning the product for service.

  • Page 15: Taking The Product Out Of Operation

    8. Taking the product out of operation 9. Fault finding the product 8.1 Cleaning DANGER Electric shock Prior to a long period of inactivity, flush the pump with Death or serious personal injury clean water to prevent corrosion and deposits in the ‐...

  • Page 16: The Pump Does Not Run

    9.1 The pump does not run Cause Remedy Supply failure. • Switch on the switch. • Check cables and cable connections for defects and loose connections. Motor protection has tripped. • Replace the contacts of the motor-protective circuit breaker, the magnet coil or the entire motor- protective circuit breaker.

  • Page 17: The Motor-Protective Circuit Breaker Has Not Tripped, But The Pump Is Inadvertently Out Of Operation

    9.4 The motor-protective circuit breaker has not tripped, but the pump is inadvertently out of operation Cause Remedy Supply failure. • Switch on the switch. • Check cables and cable connections for defects and loose connections. Motor protection has tripped. •...

  • Page 18: When Startup Is Attempted, The Pump Starts, But Delivers No Pressure Or Flow

    9.8 When startup is attempted, the pump starts, but delivers no pressure or flow Self-priming pumps only: Cause Remedy Liquid column above non-return valve in the outlet Empty the outlet pipe. Make sure that the non-return pipe prevents the pump from self-priming. valve does not hold back liquid in the outlet pipe.

  • Page 19: Technical Data

    You can derate the CM pumps in relation to the ambient temperature without any consequence. Contact Grundfos for further information. See the figure below.

  • Page 20: Maximum System Pressure And Permissible Liquid Temperature

    At liquid temperatures below 0 °C (32 °F), higher motor outputs may be needed due to increased viscosity, for instance if you have added glycol to the water. CM pumps for pumping liquids at temperatures below -20 °C (-4 °F) are available on request. Please contact Grundfos. 120 °C (248 °F) applies only if the pump has an AQQE shaft seal.

  • Page 21: Disposing Of The Product

    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 22 Appendix A A.1. Appendix Type Tliq,max Model PMax η MEI≥ Insulation class TAmb Q nom Q nom m /h m /h H nom H nom H max H max Pump nameplate with data DK-8850 BJERRINGBRO DENMARK Made in Hungary Pump nameplate with approval marks - 20 - 21 Country of origin ~ MOT...
  • Page 23 NP S H CM 1 60Hz 50Hz 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 NPSH curves for CM 1 NP S H CM 3 60Hz 50Hz NPSH curves for CM 3...
  • Page 24 NP S H 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 NPSH curves for CM 5 NP S H CM 10 60 Hz 50 Hz 9 10 11 12 13 14 15 16 17...
  • Page 25 NP S H CM 15 60 Hz 50 Hz NPSH curves for CM 15 NP S H CM 25 60 Hz 50 Hz 8 10 12 14 16 18 20 22 24 26 28 30 32 34 NPSH curves for CM 25...
  • Page 26 (°C) Vapour pressure...
  • Page 27 Argentina Columbia Hong Kong Bombas GRUNDFOS de Argentina S.A. GRUNDFOS Colombia S.A.S. GRUNDFOS Pumps (Hong Kong) Ltd. Ruta Panamericana km. 37.500industin Km 1.5 vía Siberia-Cota Conj. Potrero Unit 1, Ground floor, Siu Wai industrial 1619 - Garín Pcia. de B.A.
  • Page 28 Lithuania Serbia Turkey GRUNDFOS Pumps UAB Grundfos Srbija d.o.o. GRUNDFOS POMPA San. ve Tic. Ltd. Smolensko g. 6 Omladinskih brigada 90b Sti. LT-03201 Vilnius 11070 Novi Beograd Gebze Organize Sanayi Bölgesi Tel.: + 370 52 395 430 Tel.: +381 11 2258 740...
  • Page 29 95121197 09.2024 ECM: 1402477 www.grundfos.com...

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