Grundfos CRE Installation And Operating Instructions Manual

E-pumps with mle model h, i frequency-controlled permanent-magnet motors

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CRE, CRIE, CRNE, CRKE, SPKE, MTRE,

CME

North America

Grundfos E-pumps with MLE Model H, I 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 Model H, I 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 Installation in the USA and Canada .
Page 4 English (US) Installation and operating instructions Original installation and operating instructions 9.20 Ramps ....... . 49 9.21 Standstill heating .
Page 5 2.2 Hazard statements provided by the manufacturer of said products and not by Grundfos' warranty. Grundfos will not be liable for damage or wear to products The symbols and hazard statements below may appear in Grundfos caused by abnormal operating conditions, accident, abuse, misuse,...
Page 6 The pumps have been factory-set to constant-curve control mode. a voltage that cannot exceed ELV under PELV You can change the control mode with R100, Grundfos GO Remote normal conditions and under single-fault or HMI 300. conditions, except earth (ground) faults in other circuits 3.1.2 Pumps with a factory-fitted pressure sensor...
Page 7 3.3.3 Identification of the functional module Weight excluding motor You can identify the fitted module via one of the following ways: Motor-rated power output Grundfos GO Remote Rated flow rate You can identify the functional module in the Fitted modules menu Direction of rotation under Status.
Page 8 For installation in the USA and Canada, see the appendix. Via the built-in radio module, the product can communicate with other MLE motors. The product contains a class 1 radio. Grundfos will support the product with security updates for at least 2 years from production of the unit.
Page 9 To maintain the cURus mark, additional requirements 2. Check if no visible parts are damaged. apply to the equipment. See the appendix concerning 3. If parts are damaged or missing, contact your local Grundfos installation in the USA and Canada. sales company.
Page 10 6. Mechanical installation With the drain hole open, the motor becomes self-venting, allowing water and humid air to escape. 6.1 Mounting the product When you open the drain hole, the enclosure class of the motor is lower than standard. WARNING Crushing of feet Death or serious personal injury ‐...
Page 11 If you want to supply the motor through an IT network, make sure you have a suitable motor variant. If you are in doubt, contact Grundfos. The wires in the motor terminal box must be as short as possible. The only exception from this is the separated ground conductor which must be so long that it is the last one to be disconnected in case the cable is inadvertently pulled out of the cable entry.
Page 12 For maximum backup fuse, see the section on supply voltage. Single-phase supply If you want to supply the motor through an IT network, make sure you have a suitable motor variant. If you are in Cross section doubt, contact Grundfos. Conductor type Conductor material [AWG] Solid 0.5 - 2.5...
Page 13 Three-phase motors must be connected to a power supply with a October 1, 2017 quality corresponding to IEC 60146-1-1, class C, to ensure correct This information is optional for CRE, CRIE, CRNE, CME, SPKE and motor operation at phase unbalance. This also ensures long life of MTRE pumps.
Page 14 +24 V*/5 V* GDS RX +5 V* * If you use an external supply source, there must be a connection to GND. Connection terminals, optional for CRE, CRIE, CRNE, CRKE, SPKE, MTRE and CME pumps Terminal Type Function Normally closed...
Page 15 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 16 Contact Grundfos for further information. If you use a bus signal, the local settings made via the R100, the Grundfos GO Remote or the HMI 300 operating panel are overruled. In case the bus signal fails, the product will run with the local settings made via the R100, the Grundfos GO Remote or the HMI 300 operating panel.
Page 17 7.10 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 18 When you try to establish radio communication between the pump and Related information Grundfos GO Remote or another pump, the green indicator light in Grundfos Eye on the 6.2 Changing the position of the operating panel pump flashes continuously. Press on the 8.
Page 19 Stop text next to the button is on. You can also stop the pump by continuously pressing Down until none of the light fields are on. You can also stop the pump with Grundfos GO Remote or via a digital input set to External stop. See the section on the description of settings.
Page 20 Grundfos GO Remote and other products of the same type. When you try to establish radio communication between the product and Grundfos GO Remote or another product, the green indicator light in Grundfos Eye flashes. In the controller display, a note states that a device wants to connect to the product.
Page 21 8.1.2.1 Home display Related information 9.37 Run start-up guide Example of Home display Status Settings Assist Setpoint Control mode Pos. Symbol Description 5.00 bar Const. pressure Home: This menu shows up to four user-defined parameters. You can access each parameter Operaring mode Actual controlled value directly from this menu.
Page 22 8.1.2.3 Menu overview for the HMI 300 control 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 23 Settings CRE, CRIE, CRNE, CRKE, Settings Multipump system SPKE, MTRE Setpoint ● ● ● Operating mode ● ● ● Set manual speed ● ● ● Set user-defined speed ● ● ● Analog inputs ● ● ● Analog input 1, setup ●...
Page 24 CRE, CRIE, CRNE, CRKE, Settings Multipump system SPKE, MTRE Delete history ● ● ● Define Home display ● ● ● Display settings ● ● ● Store actual settings ● ● ● Recall stored settings ● ● ● Run start-up guide ●...
Page 25 8.1.3 Grundfos GO The product is designed for wireless radio or infrared communication with the Grundfos GO. The Grundfos GO enables you to set functions and gives you access to status overviews, technical product information and current operating parameters. Use the Grundfos GO together with the following mobile interface: Grundfos MI 301.
Page 26 Digital input/output 3 ● ● Digital input/output 4 ● ● Fitted modules ● ● Pump 1 ● Pump 2 ● Pump 3 ● Pump 4 ● It is only available if Grundfos GO Remote is connected to a multipump system.
Page 27 ● ● ● Connection code ● ● ● Unit configuration ● ● It is only available if Grundfos GO Remote is connected to a multipump system. It is only available if an advanced functional module, type FM 300, is fitted.
Page 28 CRE, CRIE, CRNE, CRKE, Alarms and warnings Multipump system SPKE, MTRE Alarm log ● ● ● Warning log ● ● ● Reset alarm ● ● ● CRE, CRIE, CRNE, CRKE, Assist Multipump system SPKE, MTRE Assisted pump setup ● ●...
Page 29 8.1.4 Grundfos Eye The operating condition of the pump is indicated by the Grundfos Eye on the operating panel. Grundfos Eye indicator light (A) Indicator light Indication Description Power off No lights are on. The motor is not running. Power on Two opposite green indicator The motor is running.
Page 30 Indicator light Indication Description The green indicator light in the You have selected the motor in the Grundfos GO, and the motor is middle is flashing continuously. ready to be connected. The green indicator light in the The motor is controlled by the Grundfos GO or exchanging data with middle flashes quickly for a few the Grundfos GO.
Page 31 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. R100 offers additional possibilities of setting and status displays for the pump.
Page 32 8.1.5.1 Menu overview for R100 CRE, CRIE, CRNE, CRKE, SPKE, General Multipump system MTRE Switch off R100 ● ● Return to start ● ● Delete all changes ● ● Store settings ● ● Call up settings ● ● Store status data ●...
Page 33 CRE, CRIE, CRNE, CRKE, SPKE, Installation Multipump system MTRE Analog input 1, 2 and 3, Function ● ● Analog input 1, 2 and 3, Measured parameter ● ● Analog input 1, 2 and 3 ● ● Pt100/1000 inputs Pt100/1000 input 1 and 2, Function ●...
Page 34 9.3 Set manual speed This menu is only available in the HMI 300 operating panel. With Grundfos GO Remote, you set the speed via the Setpoint menu. You can set the pump speed in percentage of the maximum speed. When you set the operating mode to Manual, the pump runs at the set speed.
Page 35 This control mode requires a temperature sensor placed at the location where the temperature is to be controlled. See the examples below: △t Examples Constant temperature Constant differential temperature Related information This control mode requires either two temperature sensors or 9.11 Controller settings one differential-temperature sensor.
Page 36 You can set the analog inputs via the Setup, analog input menu. See the section on setting up the analog input. If you make the manual setting via Grundfos GO Remote, you need • One level sensor with a filling function (storage tank): to enter the menu for the analog input under the Settings menu.
Page 37 Press. 1, external See the section on setting up the analog input. Press. 2, external If you make the manual setting via Grundfos GO Remote, you need to enter the menu for the Pt100/1000 input under the Settings Diff. press., ext.
Page 38 Related information Duration timer mode Select one of the following modes: 3.3.3 Identification of the functional module 9.13 External setpoint function • not active 9.41 Assisted pump setup • active with interrupt (mode A) 9.42 Setup, analog input • active without interrupt (mode B) 10.2 Factory settings •...
Page 39 TI > T1 + T2 Pos. Description TI < T1 + T2 External controller To set a digital input/output, make the settings below. Mode You can set the digital input/output 3 and 4 to act as digital input or digital output: •...
Page 40 Related information • Motor load 9.15 Limit-exceeded function Motor load 9.17 Low-flow stop function Signal range 10.2 Factory settings [V, mA] 12.2 Megging 0-10 V 10 V 9.10 Analog output 0-20 mA 0 mA 10 mA 20 mA Whether the analog output is available or not, depends on the functional module fitted in the pump: 4-20 mA 4 mA...
Page 41 This means that if you increase the setpoint, the speed is reduced. L2: distance in meters between heat exchanger and sensor. In the case of inverse control, you must set the gain within the range from -0.1 to -20. Constant differential temperature Guidelines for setting of PI controller The tables below show the recommended controller settings:...
Page 42 The range between the user-set minimum and maximum speeds is the operating range. See the figure below. 100% Example of minimum and maximum settings Pos. Description Fixed maximum speed User-set maximum speed Operating range User-set minimum speed Fixed minimum speed Related information 10.2 Factory settings...
Page 43 9.13 External setpoint function Example with constant curve with linear influence The actual setpoint is the sum of the actual input signal multiplied You can influence the setpoint by an external signal, either via one by the setpoint minus the user-set minimum speed, and the user- of the analog inputs or, if an advanced functional module (FM 300) set minimum speed.
Page 44 100 % 100 % 3.5 V 3.5 V 10 V 10 V 20 mA 20 mA 20 mA 20 mA 204 C 204 C Inverse function Linear function Pos. Description Pos. Description Setpoint influence [%] Setpoint influence [%] External input External input •...
Page 45 100 % 3.5 V 100 % 10 V 3.5 V 20 mA 20 mA 10 V 204 C 20 mA 20 mA 204 C Influence table (example with five points) Influence table with Stop at Max. (example with five points) Pos.
Page 46 Setpoint 4 Example: Setpoint 3 The function is to monitor the outlet pressure from a CRE pump. Setpoint 2 If the pressure is below 5 bar for more than 5 seconds, a warning must be given. If the outlet pressure is above 7 bar for more than 8 Setpoint 1 seconds, reset the limit exceeded warning.
Page 47 The function requires that a LiqTec sensor is fitted and connected to the pump. When you have enabled the LiqTec function, it stops the pump if dry running occurs. Restart the pump manually if it has been stopped due to dry running. △...
Page 48 Filling speed. Rated flow rate of Typical diaphragm Fixed speed of the pump during the filling phase. pump tank size CRE pump • filling pressure. [gal (liters)] [gpm (m /h)] The pressure that the pump must reach before the maximum 0-26 filling time.
Page 49 Ramp time from when the filling pressure is reached until the 9.21 Standstill heating setpoint must be reached. You can use this function to avoid condensation in humid environments. When you set the function to Active and the pump When you activate this function, the function always starts is in operating mode Stop, a low AC voltage is applied to the motor when the pump has been in operating mode Stop and is windings.
Page 50 9.29 Enable/disable settings 9.34.1 Undo In this display, you can disable the possibility of making settings for This menu is only available in Grundfos GO Remote. protective reasons. In this display, you can undo all settings that have been made with Grundfos GO Remote in the current communication session.
Page 51 You can always change the default connection code by pressing Delete and entering a new one. Grundfos GO Remote If Grundfos GO Remote fails to connect and ask you to press the 1. Open the Assist menu. connection button on the product, it means that the product has no 2.
Page 52 Pt100/1000 inputs 1 and 2. See the section on Pt100/1000 9.44.3 Cascade operation inputs. Cascade operation is only available in CRE and MTHE, CME • Adjusting the setpoint. See the section on setpoint. pumps on request. Contact Grundfos for further information.
Page 53 24. Press Finish in the Setup complete dialog box. • If applicable, select pump 4 (only in cascade) 25. Wait for the green indicator light in the middle of Grundfos Eye to light up. Use the OK or Communication button to identify the pump.
Page 54 16. Press > to continue. 17. Press OK to confirm the setting. The multipump-function icons appear in the bottom of the operating panels. 9.44.7.5 Disabling a multipump system via Grundfos GO Remote 1. Select the Assist menu. 2. Select Setup of multi-pump system.
Page 55 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 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 or Stop.
Page 56 10.2 Factory settings ● The function is enabled. ❍ The function is disabled. The 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...
Page 57 CRE, CRIE, CRNE, CRKE, SPKE, MTRE Settings With factory-fitted Without factory-fitted sensor sensor Motor bearing monitoring Not active Not active Not active Pump name Connection code Units...
Page 58 0.96 11.2 Pump 0.95 0.94 Service documentation is available in Grundfos Product Center 0.93 (http://product-selection.grundfos.com/). 0.92 If you have any questions, contact the nearest Grundfos company 0.91 or service workshop. 0.90 0.89 11.3 Cleaning the product 0.88 WARNING Electric shock Death or serious personal injury ‐...
Page 59 12.2 Megging All voltages refer to ground. All currents return to ground. Absolute maximum voltage and current limits Do not meg an installation incorporating MLE motors, as the built-in electronics may be damaged. Exceeding the following electrical limits may result in severely reduced operating reliability and motor life: 12.3 Technical data, single-phase motors Relay 1:...
Page 60 Screened cable: 0.5 - 1.5 mm , 28-16 AWG. 1 × 200-240 V, 50/60 Hz 4 × NPT 1/2" Grundfos Digital Sensor input and output, GDS 1/2 - 2 3 × 200-240 V, 60 Hz 4 × NPT 1/2" Use Grundfos Digital Sensor only.
Page 61 This product 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. The crossed-out wheelie bin symbol on...
Page 67 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 68 98566351 12.2024 ECM: 1411807 www.grundfos.com...

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