Grundfos CRE Installation And Operating Instructions Manual
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Grundfos CRE Installation And Operating Instructions Manual

E-pumps with mle frequency-controlled permanentmagnet motors
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CRE, CRIE, CRNE, CRKE, SPKE, MTRE,
CME
North America
Grundfos E-pumps with MLE frequency-controlled permanent-
magnet motors
Installation and operating instructions
GRUNDFOS INSTRUCTIONS

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  • Page 1 GRUNDFOS INSTRUCTIONS CRE, CRIE, CRNE, CRKE, SPKE, MTRE, North America Grundfos E-pumps with MLE frequency-controlled permanent- magnet motors Installation and operating instructions...
  • Page 3 CRE, CRIE, CRNE, CRKE, SPKE, MTRE, CME English (US) Installation and operating instructions ............4 Français (CA)

  • Page 4: Table Of Contents

    8.32 "Display settings"......54 Grundfos Eye ......9 8.33 "Store settings"...

  • Page 5: Limited Warranty

    Grundfos' The symbols and hazard statements below may appear in Grundfos warranty. Grundfos will not be liable for damage or wear to products installation and operating instructions, safety instructions and caused by abnormal operating conditions, accident, abuse, misuse, service instructions.

  • Page 6: Abbreviations And Definitions

    Grundfos-approved installer. 3.1.5 Battery A Li-ion battery is fitted in CRE, CRIE, CRNE, CRKE, SPKE, MTRE and CME pumps. The Li-ion battery complies with the Battery Directive (2006/66/EC). The battery does not contain mercury, lead...

  • Page 7: Identification

    You can identify the fitted module in one of the following ways: 3.2.1 Nameplate The information on the pump nameplate is described below. Grundfos GO Remote You can identify the functional module in the "Fitted modules" menu under "Status". DK-8850 Bjerringbro, Denmark...

  • Page 8: Bus Signal

    3.3 Bus signal The pump supports serial communication via an RS-485 input. The communication is carried out according to the Grundfos GENIbus protocol and enables connection to other pumps as well as a building management system or another external control system.

  • Page 9: Grundfos Eye

    3.4 Grundfos Eye The operating condition of the pump is indicated by Grundfos Eye on the operating panel. See the figure below, A. Grundfos Eye Grundfos Eye Indication Description The power is off. No lights are on. The pump is not running.

  • Page 10: Signal Relays

    You can set the signal outputs to "Operation", "Pump running", "Ready", "Alarm" and "Warning". The functions of the two signal relays appear from the table below: Contact position of signal relays when activated "Operating Description Grundfos Eye "Pump mode" "Operation" "Ready"...

  • Page 11: Receiving The Product

    2. Check that no visible parts have been damaged. Crushing of feet Minor or moderate personal injury 3. If parts are damaged or missing, contact your local Grundfos ‐ Secure the product to a solid foundation by bolts sales company.

  • Page 12: Outdoor Installation

    The cover must be sufficiently large to ensure that the motor is not You can turn the operating panel 180°. Follow the instructions exposed to direct sunlight, rain or snow. Grundfos does not supply below. covers. We therefore recommend that you have a cover built for the specific application.

  • Page 13: Electrical Installation

    5. Position the plastic cover correctly on the four rubber pins (C). 6. Electrical installation Make sure that the locking tabs (A) are placed correctly. DANGER Electric shock Death or serious personal injury ‐ Switch off the power supply to the motor and to the signal relays.

  • Page 14: Power Supply

    Stranded or solid copper conductors. make sure that you have a suitable motor variant. If you Temperature rating are in doubt, contact Grundfos. Temperature rating for conductor insulation: 140 °F (60 °C). Temperature rating for outer cable sheath: 167 °F (75 °C).

  • Page 15: Additional Protection

    Connection terminals, CRE, CRIE, CRNE, CRKE, SPKE, MTRE and CME pumps CRE, CRIE, CRNE, CRKE, SPKE, MTRE and CME pumps have a number of inputs and outputs enabling the pumps to be used in advanced applications where many inputs and outputs are required.
  • Page 16 Connection terminals, CME pumps manufactured prior to Normally closed October 1, 2017 contact Signal relay 2 This information is optional for CRE, CRIE, CRNE, CME, SPKE and MTRE pumps. Common (PELV only) CME pumps manufactured before October 1, 2017 have these...
  • Page 17 • GENIbus connection. See fig. Connection terminals, optional for CRE, CRIE, CRNE, CRKE, SPKE, MTRE and CME pumps. Digital input 1 is factory-set to be start-stop input where open circuit results in stop. A jumper has been factory- fitted between terminals 2 and 6.

  • Page 18: Signal Cables

    E-pump. The brown wire of the pressure sensor is GENIbus, Y GENIbus, GND connected to the #8 terminal of the E-pump. GENIbus, B GENIbus, B (-) Connection of Grundfos pressure sensor ISP44 to E-pump Ground +24 V Supply +24 V Supply...

  • Page 19: Installing A Communication Interface Module

    6.8 Installing a communication interface module 3. Remove the securing screw (figure below, A). DANGER Electric shock Death or serious personal injury ‐ Switch off the power supply to the motor and to the signal relays. Wait at least 5 minutes before starting any work on the motor.

  • Page 20: User Interfaces

    GO Remote. 9. Fit the CIM cover. • Grundfos R100 remote control. See the section on R100 remote 10. If the CIM module is supplied with an FCC label, then place this control. on the terminal box. See the figure below.

  • Page 21: Standardoperatingpanel

    When you try to establish radio communication between the pump and Grundfos GO Remote or another pump, the green indicator light in Grundfos Eye on the pump flashes continuously. Press on the pump operating panel to allow radio communication with Grundfos GO Remote and other products of the same type.
  • Page 22 Pos. Description You can also stop the pump with Grundfos GO Remote or via a Max. digital input set to "External stop". See the section on the description of settings.

  • Page 23: Advancedoperatingpanel

    GO Remote and other products of the same type. When you try to establish radio communication between the pump and Grundfos GO Remote or another pump, the green indicator light in Grundfos Eye flashes. A note also appears in the pump display stating that a wireless device wants to connect to the pump.
  • Page 24 7.2.1 Home display 7.2.2 Startup guide The pump incorporates a startup guide which is started at the first startup. See the section on running the startup guide. After the startup guide, the main menus appear in the display. Related information 8.37 "Run start-up guide"...
  • Page 25 7.2.3 Menu overview for advanced operating panel "Home" CRE, CRIE, CRNE, CRKE, "Home" Multipump system SPKE, MTRE ● ● ● "Status" CRE, CRIE, CRNE, CRKE, "Status" Multipump system SPKE, MTRE "Operating status" ● ● ● "Operating mode, from" ● ●...
  • Page 26 "Settings" CRE, CRIE, CRNE, CRKE, "Settings" Multipump system SPKE, MTRE "Setpoint" ● ● ● "Operating mode" ● ● ● "Set manual speed" ● ● ● "Control mode" ● ● ● "Analog inputs" ● ● ● "Analog input 1, setup" ●...
  • Page 27 CRE, CRIE, CRNE, CRKE, "Settings" Multipump system SPKE, MTRE "Delete history" ● ● ● "Define Home display" ● ● ● "Display settings" ● ● ● "Store settings" ("Store actual settings") ● ● ● "Recall settings" ("Recall stored settings") ● ●...

  • Page 28: Grundfos Go Remote

    Bluetooth connection. 7.3.1 Communication When Grundfos GO Remote initiates communication with the pump, the indicator light in the middle of Grundfos Eye flashes green. See the section on changing the position of the operating panel. Status Settings Assist...
  • Page 29 ● ● "Digital in/output 3" ● ● "Digital in/output 4" ● ● "Fitted modules" ● ● "Pump 1" ● "Pump 2" ● "Pump 3" ● "Pump 4" ● Only available if Grundfos GO Remote is connected to a multipump system.
  • Page 30 ● "Pump name" ● ● ● "Connection code" ● ● ● "Unit configuration" ("Units") ● ● Only available if Grundfos GO Remote is connected to a multipump system. Only available if an advanced functional module, type FM 300, is fitted.
  • Page 31 CRE, CRIE, CRNE, CRKE, "Alarms and warnings" Multipump system SPKE, MTRE "Alarm log" ● ● ● "Warning log" ● ● ● "Reset alarm" button ● ● ● CRE, CRIE, CRNE, CRKE, "Assist" Multipump system SPKE, MTRE "Assisted pump setup" ●...

  • Page 32: R100 Remote Control

    R100 communicating with the pump via infrared light During communication, point R100 at the operating panel. When R100 communicates with the pump, the indicator light in the middle of the Grundfos Eye flashes green. See the section on Grundfos Eye. 7.4.1 Menu overview for R100 CRE, CRIE, CRNE, CRKE, SPKE, "General"...
  • Page 33 CRE, CRIE, CRNE, CRKE, SPKE, "Installation" Multipump system MTRE "Control mode" ● ● "Controller" ("Controller settings") ● ● "Signal relays" 1 and 2 ("Relay outputs") ● ● "Buttons on product" ("Enable/disable settings") ● ● "Number" ("Pump number") ● ● "Digital inputs"...

  • Page 34: Description Of Functions

    This menu is only available in the advanced operating panel. With You can set the setpoint for all control modes when you have Grundfos GO Remote, you set the speed via the "Setpoint" menu. selected the desired control mode. See the section on the control You can set the pump speed in % of the maximum speed.
  • Page 35 Pump variant pressure" temperature" ● ● CRE, CRIE, CRNE, CRKE, SPKE, MTRE ● CRE, CRIE, CRNE, CRKE, SPKE, MTRE ● We recommend this control mode if the pump is to deliver a This control mode ensures a constant temperature. Constant constant pressure, independently of the flow in the system.
  • Page 36 Pump variant differential pressure" temperature" ● ● CRE, CRIE, CRNE, CRKE, SPKE, MTRE ● CRE, CRIE, CRNE, CRKE, SPKE, MTRE ● The pump maintains a constant differential pressure, independently The pump maintains a constant differential temperature in the of the flow in the system. See the figure below.
  • Page 37 "Constant level" Pump variant rate" ● ● CRE, CRIE, CRNE, CRKE, SPKE, MTRE ● CRE, CRIE, CRNE, CRKE, SPKE, MTRE ● The pump maintains a constant level, independently of the flow The pump maintains a constant flow in the system, independently of rate.

  • Page 38: Analog Inputs

    You can set the analog inputs via the "Setup, analog input" menu. See the section on setting up the analog input. 8.4.8 "Constant curve" If you make the manual setting via Grundfos GO Remote, you need to enter the menu for the analog input under the "Settings" menu. Pump variant "Constant curve"...

  • Page 39: Pt100/1000 Inputs

    You can set the analog inputs via the "Setup, analog input" menu. See the section on setting up the analog input. "Temperature 1" If you make the manual setting via Grundfos GO Remote, you need "Temperature 2" to enter the menu for the Pt100/1000 input under the "Settings"...

  • Page 40: Digital Inputs

    • active with interrupt (mode A) ● • active without interrupt (mode B) CRE, CRIE, CRNE, CRKE, SPKE, MTRE ● • active with after-run (mode C). Available inputs depend on the functional module fitted in the pump: Select the duration time (T2).

  • Page 41: Digital Inputs/Outputs

    (See details in the section on Pump variant outputs" digital inputs) relay outputs) ● "Not active" "Not active" "External stop" CRE, CRIE, CRNE, CRKE, SPKE, MTRE ● "Ready" "Min." "Alarm" Available inputs/outputs depend on the functional module fitted in "Max." "Operation" the pump: "External fault"...

  • Page 42: Signal Relays" 1 And 2 ("Relay Outputs")

    Pump variant "Analog output" Pump variant ("Relay outputs") ● ● CRE, CRIE, CRNE, CRKE, SPKE, MTRE ● CRE, CRIE, CRNE, CRKE, ● SPKE, MTRE Whether the analog output is available or not, depends on the functional module fitted in the pump: The pump incorporates two signal relays for potential-free signalling.

  • Page 43: Controller" ("Controller Settings")

    8.11 "Controller" ("Controller settings") "Motor load" "Controller" Signal range Pump variant ("Controller settings") [V, mA] ● "0-10 V" 10 V CRE, CRIE, CRNE, CRKE, ● SPKE, MTRE "0-20 mA" 0 mA 10 mA 20 mA "4-20 mA" 4 mA 12 mA...

  • Page 44: Operating Range

    L2: distance in meters between heat exchanger and sensor. 8.12 "Operating range" Constant differential Pump variant "Operating range" temperature ● CRE, CRIE, CRNE, CRKE, SPKE, ● MTRE Set the operating range as follows: • Set the minimum speed within the range from fixed minimum -0.5 10 + 5L2 speed to user-set maximum speed.

  • Page 45: External Setpoint Function

    60 %, the actual setpoint is 0.60 x (85 - 25) + ● 25 = 61 %. See the figure below. CRE, CRIE, CRNE, CRKE, SPKE, ● MTRE You can influence the setpoint by an external signal, either via one of the analog inputs or, if an advanced functional module (FM 300) is fitted, via one of the Pt100/1000 inputs.
  • Page 46 8.13.1 "Setpoint influence" functions Pos. Description You can select these functions: "Setpoint influence" [%] • "Not active". External input When set to "Not active", the setpoint is not influenced from any "Normal" external function. • "Linear function". "Min." or "Stop" The setpoint is influenced linearly from 0 to 100 %.

  • Page 47: Predefined Setpoints

    8.14 "Predefined setpoints" "Predefined Pump variant setpoints" ● CRE, CRIE, CRNE, CRKE, SPKE, MTRE ● You can set and activate seven predefined setpoints by combining 100 % the input signals to digital inputs 2, 3 and 4. See the table below.

  • Page 48: Limit-Exceeded Function

    Example: Factory setting The function is to monitor the outlet pressure from a CRE pump. If See the section on factory settings. the pressure is below 5 bar for more than 5 seconds, a warning Related information must be given.

  • Page 49: Liqtec" ("Liqtec Function")

    8.17 "Stop function" ("Low-flow stop function") "Stop function" Pump variant ("Low-flow stop function") ● CRE, CRIE, CRNE, CRKE, SPKE, MTRE ● You can set the "Low-flow stop function" to these values: • "Not active" • "Energy-optimal mode" T[s] • "High-comfort mode"...
  • Page 50 Rated flow rate of Typical diaphragm reaches the stop pressure and stops. If there is flow, the pump pump tank size CRE pump continues operating according to the setpoint. [gal (liters)] [gpm (m /h)] Operating conditions for the low-flow stop function...

  • Page 51: Pipe Filling Function

    Description Pump variant "Ramps" Pressure ● Filling phase (constant-curve operation) CRE, CRIE, CRNE, CRKE, SPKE, MTRE ● Pressure build-up phase (constant-pressure operation) The ramps determine how quickly the pump can accelerate and "Setpoint" decelerate during start-stop or setpoint changes. Filling pressure You can set the following: •...

  • Page 52: Standstill Heating

    "Standstill heating" been done during the lifetime of the motor. ● "Bearings replaced" ("Motor bearing maintenance") CRE, CRIE, CRNE, CRKE, SPKE, ● When the bearing monitoring function is active, the controller gives MTRE a warning when the motor bearings are due to be replaced.

  • Page 53: Radio Communication" ("Enable/Disable Radio Comm.")

    See the section on the identification of functional module. unlock all other buttons on the motor with Grundfos GO Remote. You can set date and time as well as how you want them to be...

  • Page 54: Delete History

    Pump variant ("Store actual settings") product. ● Setting the code in the product using Grundfos GO Remote CRE, CRIE, CRNE, CRKE, 1. Connect Grundfos GO Remote to the product. ● SPKE, MTRE 2.

  • Page 55: Run Start-Up Guide

    [Delete] and entering a new one. This menu consist of a number of different assist functions which If Grundfos GO Remote fails to connect and ask you to press the are small guides that take you through the steps needed to set the connection button on the product, it means that the product has no pump.

  • Page 56: Setup, Analog Input

    8.44.3 "Cascade operation" ● SPKE, MTRE Cascade operation is only available in CRE and CME pumps on request. Contact Grundfos for further information. This menu is only available in the advanced operating panel. Cascade operation is possible with up to four pumps of the same Whether this menu is available or not, depends on the functional size and type connected in parallel.
  • Page 57 20. Confirm the setting by pressing [Send]. 8.24 "Number" ("Pump number") 21. Press [Finish] in the "Setup complete" dialog box. 8.24 Numéro (Numéro de pompe) 22. Wait for the green indicator light in the middle of Grundfos Eye 8.24 “Número” (“N.º de bomba”) to light up. 8.35 "Pump name"...

  • Page 58: Description Of Control Mode

    24. Press [Finish] in the "Setup complete" dialog box. 14. Press [>] to continue. 25. Wait for the green indicator light in the middle of Grundfos Eye 15. Set the time for a pump changeover i.e. the time at which the to light up.

  • Page 59: Description Of Settings

    If two or more functions are enabled at the same time, the pump operates according to the function with the highest priority. Example: If you have set the pump to maximum speed via the digital input, the pump operating panel or Grundfos GO Remote can only set the pump to "Manual"...

  • Page 60: Factory Settings

    9.2 Factory settings ● Function is enabled. ❍ Function is disabled. Function is not available. CRE, CRIE, CRNE, CRKE, SPKE, MTRE Settings With factory-fitted Without factory-fitted sensor sensor "Setpoint" 75 % of sensor range 75 % of sensor range 75 % of sensor range "Operating mode"...
  • Page 61 CRE, CRIE, CRNE, CRKE, SPKE, MTRE Settings With factory-fitted Without factory-fitted sensor sensor "Standstill heating" "Not active" "Not active" "Not active" "Motor bearing monitoring" "Not active" "Not active" "Not active" "Pump name" "Connection code" "Unit configuration" ("Units")

  • Page 62: Servicing The Product

    Service documentation is available in Grundfos Product Center 11.1.3 Installation altitude (http://product-selection.grundfos.com/). If you have any questions, please contact the nearest Grundfos If the motor is installed above 6560 ft (2000 m), it does not company or service workshop. comply with SELV/PELV classification.

  • Page 63: Megging

    11.1.4 Humidity 11.4 Technical data, three-phase motors Maximum humidity: 95 %. 11.4.1 Supply voltage If the humidity is constantly high and above 85 %, open the drain • 3 × 440-480 V -10 % / +10 %, 50/60 Hz, PE. holes in the drive-end flange.

  • Page 64: Inputs/Outputs

    Screened cable: 0.5 - 1.5 mm , 28-16 AWG. Certain high logic level: V greater than 3.0 VDC. Grundfos Digital Sensor input and output, GDS Hysteresis: No. Use Grundfos Digital Sensor only. Screened cable: 0.5 - 1.5 mm , 28-16 AWG.

  • Page 65: Other Technical Data

    C3/C1 (5.5) C3/C1 C3/C1 (7.5) C3/C1 (11) C1, if equipped with an external Grundfos EMC filter. Immunity: Fulfills the requirements for industrial areas. Contact Grundfos for further information. Enclosure class Standard: IP55 (IEC 34-5). Optional: IP66 (IEC 34-5). Insulation class F (IEC 85).

  • Page 66: Disposing Of The Product

    2000 sound way. 2000 1. Use the public or private waste collection service. 3000 1 1/2 4000 2. If this is not possible, contact the nearest Grundfos company or (1.1) 4000 service workshop. 4000 5900 5900 The crossed-out wheelie bin symbol on...
  • Page 67 This device must accept any interference, including interference that may cause undesired operation of the device. Users are cautioned that changes or modifications not expressly approved by Grundfos could void the user's authority to operate the equipment. Pour le Canada Ce dispositif est conforme à...
  • Page 68 A.1.4. Electrical connection Conductors See the sections on electrical installation and cable requirements. Torques See the section on torques. Line reactors The maximum line reactor size in front of the drive must not exceed the following values: Maximum line reactor size [mH] 1450-2000 rpm 2900-4000 rpm...
  • Page 69 2941 Brighton Road Oakville, Ontario L6H 6C9 Tel.: +1-905 829 9533 Fax: +1-905 829 9512 Mexico Bombas GRUNDFOS de México S.A. de C.V. Boulevard TLC No. 15 Parque industrial Stiva Aeropuerto Apodaca, N.L. 66600 Tel.: +52-81-8144 4000 Fax: +52-81-8144 4010...
  • Page 70 98566351 11.2022 ECM: 1353332 www.grundfos.com...

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