Grundfos Hydro Multi-E CRE Service Instructions Manual
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Grundfos Hydro Multi-E CRE Service Instructions Manual

Grundfos Hydro Multi-E CRE Service Instructions Manual

Multi-pump systems
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GRUNDFOS INSTRUCTIONS
Hydro Multi-E
Multi-pump systems CRE and CME
Service instructions

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Summary of Contents for Grundfos Hydro Multi-E CRE

  • Page 1 GRUNDFOS INSTRUCTIONS Hydro Multi-E Multi-pump systems CRE and CME Service instructions...
  • Page 3 Hydro Multi-E English (GB) Service instructions ............... . 4...

  • Page 4: Table Of Contents

    Reconfiguring the system (FM200, FM300) ..6 Disabling the system with Grundfos GO ... . . 6 WARNING Disabling the system with the HMI 300 operating panel .

  • Page 5: Maintenance

    2. Maintenance 2.1.4 Diaphragm tank Check the pre-pressure of the diaphragm tank. 2.1 Yearly maintenance and checks Measure the tank precharge pressure when there is no 2.1.1 Pumps water pressure in the system. • Air vent the pumps to remove the air and prevent the valve from being clogged.

  • Page 6: Replacing Electrical Options

    MI 301. 3. The app will search for nearby pumps and create a list. Click on the pump in the list, and Grundfos Eye on the pump will flash. Press the Connect button (HMI 200) or the OK (HMI 300) button.

  • Page 7: Unlocking A New Motor With Pc Tool Go Link

    To configure the system, the assisted cascade setup function in search again.) Grundfos GO needs to be accessible. To unlock this function, use 10. Press Next. the PC Tool GO Link. Find the correct configuration (GSC) file number in the below table that matches the sensor type for the 11.

  • Page 8: Unlocking A New Motor With Pc Tool Go Link

    To configure the system, the assisted cascade setup function in and select MI 301. Grundfos GO needs to be accessible. To unlock this function, use the PC Tool GO Link. Find the correct configuration (GSC) file 3. The app will search for nearby pumps and create a number in the below table that matches the sensor type for the list.

  • Page 9: Fault Finding

    The cable is broken Repair or replace the cable. or short-circuited (GENIbus The internal motor protection is Contact Grundfos. communication between pump activated. 1 and pump 2 or 3). The circuit breaker is defective. Replace the circuit breaker.

  • Page 10: Fault And Warning Signals

    7. Fault and warning signals The fault indication below can be read by the number in brackets, text or status indications on the operating panel, depending on the equipment available. Grundfos Eye Cause Remedy External fault (3) • Check the parameter or the unit reporting the An external signal reports an external fault external fault.
  • Page 11 Grundfos Eye Cause Remedy Pump communication fault (10) There is a communication fault between • Make sure that all pumps of the multi-pump this pump and the other pumps of the multi- system are correctly set. pump system. Forced pumping (29) •...
  • Page 12 Grundfos Eye Cause Remedy Replace the motor bearings (30) • Replace the bearings. Follow the instructions for the pump. The bearings are worn. See the relevant section on bearing replacement in the service instructions. Internal sensor fault (88) • Check that the plug and cable are connected The pump receives a signal from the correctly to the sensor.

  • Page 13: References

    8. References 8.1 FM300 and FM310 connections The motor used in the system is equipped with FM300 or FM310 as standard. FM300 connections +24 V* DI4/OC2 Pt100/1000 Pt100/1000 +5 V* +24 V* +24 V* +24 V*/5 V* LiqTec LiqTec +24 V* DI3/OC1 +24 V* +24 V*...
  • Page 14 Supply +24 V Supply +5 V Supply to potentiometer and sensor Signal ground GDS TX Grundfos Digital Sensor output GDS RX Grundfos Digital Sensor input Analog input: • 0-20 mA or 4-20 mA • 0.5 - 3.5 V, 0-5 V or 0-10 V.
  • Page 15 • 0.5 - 3.5 V, 0-5 V or 0-10 V. +5 V Power supply to a potentiometer or sensor Signal ground GDS TX Grundfos Digital Sensor output GDS RX Grundfos Digital Sensor input Signal ground Digital input/output, configurable DI4/OC2 Open collector: Maximum 24 V resistive or inductive...
  • Page 16 Terminal Type Function Analog input: • 0-20 mA or 4-20 mA • 0.5 - 3.5 V, 0-5 V or 0-10 V. Digital input, configurable Digital input 1 is factory-set to be start-stop input for the situation when an open circuit results in a stop. A jumper is factory-fitted between terminals DI1 and GND.

  • Page 17: Identifying The Master Or Slave Pump

    Indicates that the pump is functioning as a master pump in a multi-pump system 8.4 Product manuals You can find further product information about the system in the following documents. The documents are available in Grundfos Product Center on www.grundfos.com. Publication Title Document type...

  • Page 18: Disposal

    9.2 Disposing of the system This system 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.
  • Page 19 Unit 1, Ground floor, Siu Wai industrial Turkey www.ba.grundfos.com Centre GRUNDFOS Pumps NZ Ltd. GRUNDFOS POMPA San. ve Tic. Ltd. Sti. E-mail: grundfos@bih.net.ba 29-33 Wing Hong Street & 68 King Lam 17 Beatrice Tinsley Crescent Gebze Organize Sanayi Bölgesi Street, Cheung Sha Wan...
  • Page 20 98590865 10.2024 ECM: 1401909 www.grundfos.com...

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Hydro multi-e cme

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