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CR, CRN 95-255
Installation and operating instructions
Other languages
http://net.grundfos.com/qr/i/99078486
GRUNDFOS INSTRUCTIONS

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Summary of Contents for Grundfos CR 95

  • Page 1 GRUNDFOS INSTRUCTIONS CR, CRN 95-255 Installation and operating instructions Other languages http://net.grundfos.com/qr/i/99078486...
  • Page 2: Table Of Contents

    English (GB) Installation and operating instructions 1. General information Original installation and operating instructions These installation and operating instructions describe Grundfos CR, CRN 95 to 255. 1.1 Hazard statements Sections 1-4 give the information necessary to be The symbols and hazard statements below may...
  • Page 3: Safety Information For The Motor

    - Do not use the motor eyebolts to lift the Correct position of lifting brackets. entire pump if the pump is fitted with a motor of another make than Grundfos MG and MGE. - Follow the lifting instructions. - Use lifting equipment which is approved for the weight of the product.
  • Page 4 2.4.2 Lifting the motor off the pump 2.4.3 Lifting of pumps fitted with MGE motors When lifting a pump fitted with a motor that contains an integrated frequency converter, make sure that the terminal box does not come into contact with the lifting equipment.
  • Page 5 Horizontal lift of pumps with 5.5 - 200 KW motors of other makes than Grundfos MG and MGE Fig. 9 Raising or laying down pumps with 7.5 - 22 kW Grundfos MG and MGE* motors See also section 2.4.3 Lifting of pumps fitted with MGE motors...
  • Page 6 Grundfos MG and MGE Fig. 14 Vertical lift of pumps with 5.5 - 200 KW Fig. 11 Raising or laying down pumps without motors of other makes than Grundfos motor MG and MGE 2.4.6 Lifting the product in vertical position Fig. 15 Vertical lift of pumps without motor Fig.
  • Page 7: Installing The Product

    Death or serious personal injury - Do not use the motor eyebolts to lift the entire pump if the pump is fitted with a motor of another make than Grundfos MG and MGE. - Follow the lifting instructions. - Use lifting equipment which is approved for the weight of the product.
  • Page 8 Illustration Information Arrows on the pump base plate show the direction of flow of liquid through the pump. These dimensions are stated on page 26: • port-to-port lengths • dimensions of the base plate • pipe connections • diameter and position of anchor bolts. The pump can be installed vertically and horizontally.
  • Page 9 3.1.3 Foundation For pumps with motor size equal to 37 kW or above, the length and width must always be 1.5 x 1.5 (Lf x WARNING Wf) m. Falling objects Death or serious personal injury - Keep the product in a stable and fixed position before installing it.
  • Page 10 3.1.4 Vibration dampening 3.1.5 Outdoor installation Elimination of noise and vibrations is best achieved When the pump is installed outdoors, we recommend by means of a concrete foundation, vibration that you provide the motor with a rain cover. We also dampers and expansion joints.
  • Page 11 3.1.7 Flange forces and torques If not all loads reach the maximum permissible value stated in the tables below, one of these values may exceed the normal limit. Contact Grundfos for further information. Fig. 23 Flange forces and torques Y-direction: Inlet or outlet Z-direction: Direction of chamber stack X-direction: 90 °...
  • Page 12: Electrical Connection

    4. Starting up the product 3.2 Electrical connection WARNING Follow the instructions for the motor when Corrosive liquids carrying out the electrical connections. Death or serious personal injury - Wear personal protective equipment. The electrical connection must be carried out by an authorised electrician in accordance with local WARNING regulations.
  • Page 13: Startup Procedure

    4.1 Startup procedure 5. Vent the pump by means of the vent valve in the pump head. At the same time, open the outlet 1. Close the isolating valve on the outlet side of the isolating valve a little. pump and open the isolating valve on the inlet side.
  • Page 14: Shaft Seal Run-In

    5. Product introduction 4.2 Shaft seal run-in WARNING 5.1 Identification Corrosive liquids 5.1.1 Nameplate Death or serious personal injury The information on the pump nameplate are - Wear personal protective equipment. described below. WARNING Toxic liquids DK-8850 Bjerringbro,Denmark Death or serious personal injury Model-PN-SN - Wear personal protective equipment.
  • Page 15: Intended Use Of The Product

    DANGER temperature, content of chemicals and oils. Please Fire and explosion consult Grundfos for information about which pump types are suitable for a specific liquid. Death or serious personal injury - Do not use the pump for flammable, combustible or explosive liquids.
  • Page 16: Operating The Product

    - Pumped liquid which is drained off or entire pump if the pump is fitted with a leaks from the pump must be collected motor of another make than Grundfos for safe disposal. MG and MGE. - Follow the lifting instructions.
  • Page 17: Contaminated Pumps

    WARNING If you request Grundfos to service the product, Corrosive liquids contact Grundfos with details about the liquid before Death or serious personal injury returning the product for service.
  • Page 18: Service Documentation

    - Wear personal protective equipment. WARNING http://net.grundfos.com/qr/i/99233360 Toxic liquids Additional service documentation including service Death or serious personal injury videos are available in Grundfos Product Center > - Wear personal protective equipment. http://product-selection.grundfos.com/. 6.2.2 Motor CAUTION Grundfos MG and MGE motors...
  • Page 19: Taking The Product Out Of Operation

    Death or serious personal injury - Do not use the motor eyebolts to lift the entire pump if the pump is fitted with a motor of another make than Grundfos MG and MGE. - Follow the lifting instructions. - Use lifting equipment which is approved for the weight of the product.
  • Page 20: Fault Finding The Product

    8. Fault finding the product WARNING Falling objects DANGER Death or serious personal injury Electric shock - Keep the product in a stable and fixed Death or serious personal injury position when working on it. - Before starting any work on the product, make sure that the power supply has been switched off and that it cannot be CAUTION...
  • Page 21 Fault Cause Remedy The pump The pump inlet pressure is too low Check the inlet conditions. performance is not (cavitation). constant. The inlet pipe or pump is partly Clean the inlet pipe or pump. blocked by impurities. The pump draws in air. Check the inlet conditions.
  • Page 22: Technical Data

    9. Technical data 9.1.4 Minimum inlet pressure 9.1 Operating conditions 9.1.1 Ambient temperature and altitude See the instructions for the motor which are supplied with the pump. 9.1.2 Maximum system pressure and liquid temperature The maximum permissible system pressure and liquid temperature are stated on the nameplate NPSH which is placed on the pump.
  • Page 23: Dimensions And Weights

    However, the actual inlet pressure + the 2. If this is not possible, contact the nearest maximum pump pressure at no flow must always be Grundfos company or service workshop. lower than the maximum permissible system See also end-of-life information at pressure which is stated on the pump nameplate.
  • Page 24 Appendix Fig. A NPSH CR 95, CRN 95 CR 185, CRN 185 [kPa] [kPa] 60 Hz 60 Hz 50 Hz 50 Hz Q [m³/h] 0 20 40 60 80 100 120 140 160 180 200 220 240 260 Q [m³/h]...
  • Page 25 Fig. B Maximum inlet pressure for CR, CRN 50 Hz 60 Hz CR, CRN 95 → CR, CRN 95-1 → CR, CRN 95-2-2 CR, CRN 95-1-1 4 bar CR, CRN 95-1-1 10 bar → CR, CRN 95-3-2 → CR, CRN 95-4-2 CR, CRN 95-2-2 10 bar CR, CRN 95-2-1...
  • Page 26 Fig. C...
  • Page 27 Fig. D Airborne noise emitted by pumps with motors fitted by Grundfos: 50 Hz 60 Hz Motor Motor [dB(A)] [dB(A)] [kW] [kW] (ISO3743-2 / ISO1680 50 Hz) (ISO3743-2 / ISO1680 60 Hz) 0.37 0.37 0.55 0.55 0.75 0.75 18.5 18.5 33.5...
  • Page 28 Fig. E (°C)
  • Page 30 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 31 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 32 99078486 1118 ECM: 1245415 www.grundfos.com...

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