Grundfos MAGNA3 25-80 Installation And Operating Instructions Manual
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Grundfos MAGNA3 25-80 Installation And Operating Instructions Manual

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GRUNDFOS INSTRUCTIONS
MAGNA3
Installation and operating instructions

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  • Page 1 GRUNDFOS INSTRUCTIONS MAGNA3 Installation and operating instructions...

  • Page 2: Table Of Contents

    Sections 1-5 give the information necessary to be able to unpack, install and start up the product in a safe way. Fault finding the product 10.1 Grundfos Eye operating indications Sections 6-13 give important information about the product, as 10.2 Fault finding table well as information on service, fault finding and disposal of the 10.3 Fault finding...

  • Page 3: General Information

    1.2 Notes packaging. Remove the tape before installing the The symbols and notes below may appear in Grundfos pump. installation and operating instructions, safety instructions and 2.2 Scope of delivery service instructions.

  • Page 4: Lifting The Pump

    2.2.2 Plug-connected twin-head pump 2.3 Lifting the pump Observe local regulations concerning limits for manual lifting or handling. Always lift directly on the pump head or the cooling fins when handling the pump. See fig. 1. For large pumps, it may be necessary to use lifting equipment. Position the lifting straps as illustrated in fig.

  • Page 5: Installing The Product

    3. Installing the product 3.3 Mechanical installation The pump range includes both flanged and threaded versions. 3.1 Location These installation and operating instructions apply to both The pump is designed for indoor installation. versions, but give a general description of flanged versions. If the versions differ, the threaded version will be described separately.

  • Page 6: Positioning The Pump

    Step Action Illustration To ensure adequate cooling, make sure that the control box is in horizontal position with the Grundfos logo in vertical position. See fig. 5. Make sure that the isolating valves are closed before rotating the control box.

  • Page 7: Pump Head Position

    3.6 Pump head position If you remove the pump head before installing the pump in the pipes, pay special attention when fitting the pump head to the pump housing: 1. Visually check that the floating ring in the sealing system is centred.

  • Page 8: This Appliance Can Be Used By Children Aged From

    Place the control box in horizontal position so that the 8 Nm Grundfos logo is in Fit and tighten the vertical position. screw that holds the The motor shaft clamp to 8 Nm ± 1 must be in horizontal position.

  • Page 9: Electrical Installation

    As an alternative to insulating shells, you can insulate the pump housing and pipes as illustrated in fig. 10. Make sure that the fuse is dimensioned according to the nameplate and local legislation. In heating systems, do not insulate the control box or cover the operating panel.

  • Page 10: Wiring Diagrams

    3.9 Wiring diagrams 3.9.1 Connection to power supply, plug-connected versions External switch Fuse RCD/RCCB Fig. 11 Example of plug-connected motor with main switch, backup fuse and additional protection 3.9.2 Connection to external controllers, plug-connected versions Analog input Digital input Relay 1 Relay 2 NC NO C NC NO C...
  • Page 11 3.9.3 Connections in the control box, terminal-connected versions Analog input Signal Sensor Digital input Relay 1 Relay 2 Power NC NO C NC NO C Operation Alarm Start/stop On/off RCD/RCCB timer Fig. 13 Example of connections in the control box of terminal-connected versions Use C and NC for fault signals as this enables serial connections of more relays and detection of signal cable defects.

  • Page 12: Connecting The Power Supply, Plug-Connected Versions

    3.10 Connecting the power supply, plug-connected Step Action Illustration versions Step Action Illustration 7 mm Fit the cable gland Insert the power and plug cover to 12 mm supply plug into the the cable. Strip the 17 mm male plug in the cable conductors as 0.5 - 1.5 mm pump control box.

  • Page 13: Connecting The Power Supply, Terminal-Connected Versions

    3.11 Connecting the power supply, terminal-connected Step Action Illustration versions Step Action Illustration Remove the front Strip the cable cover from the conductors as control box. illustrated. Do not remove the screws from the 7 mm 20 mm cover. Min. Ø 7 mm Max.

  • Page 14: Connecting The External Control

    3.12 Connecting the external control Step Action Illustration The example is based on a MAGNA3 terminal-connected version. The connection terminals of plug-connected versions differ from those of terminal-connected versions, but they have the same function and connection options. See sections 3.9 Wiring diagrams 7.9 Input and output...

  • Page 15: Starting Up The Product

    4. Starting up the product 4.1 Single-head pump The number of starts and stops via the power supply must not exceed four times per hour. Do not start the pump until the system has been filled with liquid and vented. Furthermore, the required minimum inlet pressure must be available at the pump inlet.

  • Page 16: Twin-Head Pump

    4.2 Twin-head pump 5. Handling and storing the product 5.1 Frost protection If the pump is not used during periods of frost, take the necessary steps to prevent frost bursts. Fig. 14 MAGNA3 D The pumps are paired from factory. When switching on the power supply, the heads will establish connection.

  • Page 17: Product Introduction

    6. Product introduction Clean and flush the system before you add the ethylene-glycol mixture. MAGNA3 is a complete range of circulator pumps with integrated To prevent corrosion or lime precipitation, check and maintain the controller enabling adjustment of pump performance to the actual ethylene-glycol mixture regularly.

  • Page 18: Identification

    Intended use Maximum system pressure This pump incorporates a radio for remote control. The pump can communicate with Grundfos GO and with other Voltage [V] and frequency [Hz] MAGNA3 pumps of the same type via the built-in radio. QR code CE mark and approvals 6.7 Closed valve operation...

  • Page 19: Insulating Shells

    6.8 Insulating shells Insulating shells are available for single-head pumps only. Limit the heat loss from the pump housing and pipes. Reduce the heat loss by insulating the pump housing and the pipes. See figs and 10. • Insulating shells for pumps in heating systems are supplied with the pump.

  • Page 20: Control Functions

    7. Control functions 7.1 Quick overview of control modes AUTO For further ADAPT set1 • Recommended for most heating systems. information, see section • During operation, the pump automatically makes the necessary 7.3.2 AUTO adjustment to the actual system characteristic. ADAPT auto_min set2...
  • Page 21 Constant curve For further • The pump can be set to operate according to a constant curve, like information, see an uncontrolled pump. section 7.3.9 Constant • Set the desired speed in % of the maximum speed in the range curve.

  • Page 22: Operating Modes

    7.2 Operating modes 7.3.2 AUTO ADAPT We recommend the AUTO control mode for most heating Normal ADAPT systems, especially in systems with relatively large pressure The pump runs according to the selected control mode. losses in the distribution pipes, and in replacement situations where the proportional-pressure duty point is unknown.
  • Page 23 7.3.3 FLOW 7.3.4 Proportional pressure ADAPT The FLOW control mode combines AUTO Proportional pressure is suitable in systems with relatively large ADAPT ADAPT FLOW , meaning that the pump runs AUTO while at the pressure losses in the distribution pipes and in air-conditioning and LIMIT ADAPT same time ensuring that the flow never exceeds the entered...
  • Page 24 7.3.5 Constant pressure Temperature sensor If the pump is installed in the flow pipe, install an external A constant pressure is advantageous in systems with relatively temperature sensor in the return pipe of the system. See fig. 31. small pressure losses in the distribution pipes: Install the sensor as close as possible to the consumer (radiator, •...
  • Page 25 7.3.7 Differential temperature 7.3.8 Constant flow Select this control mode if the pump performance is to be Note: Available for pumps with production code from 1838. controlled according to a differential temperature in the system The pump maintains a constant flow in the system independently where the pump is installed.

  • Page 26: Additional Control Mode Features

    Technical specifications 7.4 Additional control mode features MAGNA3 offers additional features for the control modes to meet specific demands. 7.4.1 FLOW LIMIT The feature is an integrated part of the FLOW control mode, ADAPT but can also be used in: •...

  • Page 27: Multipump Modes

    FLOW duty LIMIT connection via the wireless GENIair connection. The built-in point wireless GENIair module enables communication between pumps and with Grundfos GO without the use of add-on modules. See sections 9. Servicing the product 11.1 Grundfos Pump system: •...

  • Page 28: Flow Estimation Accuracy

    7.6 Flow estimation accuracy The internal sensor estimates the difference in pressure between the inlet and outlet port of the pump. The measurement is not a direct differential-pressure measurement, but by knowing the hydraulic design of the pump, you can estimate the differential pressure across the pump.

  • Page 29: External Connections

    Connect the cable screen to earth via the digital-input Example: If the pump has been forced to stop via an external terminal. See fig. 43. signal, the operating panel or Grundfos GO can only set the pump • Plug-connected versions: to maximum curve.

  • Page 30: Input And Output Communication

    You can set the function of the signal relay to "Alarm", "Ready" or – Start and stop (S/S) "Operation" on the operating panel or with Grundfos GO. To ensure a trouble-free operation, Grundfos recommends The relays can be used for outputs up to 250 V and 2 A.
  • Page 31 100 % speed XXXX XXXX Model: Made in Germany XXXX Grundfos Holding A/S, DK - 8850 Bjerringbro, Denmark enmark Minimum curve Start-stop Frame connection Fig. 47 Identifying the master pump head on the nameplate For redundancy purposes, the digital input can be used concurrently on the slave pump head.
  • Page 32 You can change the sensor type, 0-10 V or 4-20 mA, on the Pos. Sensor type operating panel or with Grundfos GO. Combined temperature and pressure sensor, Grundfos type RPI T2. 1/2" connection and 4-20 mA signal.
  • Page 33 7.9.5 Heat energy monitor "Linear with Min." Here, a 0-10 V or 4-20 mA signal controls the pump speed range The heat energy monitor calculates the heat energy consumption in a linear function. The range of control depends on the minimum within the system.

  • Page 34: Setting The Product

    8. Setting the product 8.2 Menu structure "Home" CAUTION This menu shows up to four user-defined parameters with Hot surface shortcuts or a graphical illustration of a performance curve. See Minor or moderate personal injury section 8.5 "Home" menu. - At high liquid temperatures, the pump housing may Status be so hot that only the operating panel may be This menu shows the status of the pump and system as well as...
  • Page 35 8.3.2 "Setting of pump" Fig. 57 Startup guide: Setting of the pump "Run with AUTOADAPT" If you choose "Run with AUTOADAPT", the pump operates according to its factory settings. See section 7.3.1 Factory setting. "Go to "Application wizard"" Note: Available for pumps with production code from 1838. The "Application wizard"...

  • Page 36: Menu Overview

    8.4 Menu overview "Home" Status "Settings" "Assist" Control mode Operating status Setpoint Application wizard Setpoint Operating mode, from Operating mode Boiler pump Estimated flow Control mode Normal Radiator 1), 2) Low flow Pump performance Stop Fan coil unit Head Max. curve and duty point Min.
  • Page 37 Active, Tmax. = 80 °C Bus communication Pump number Forced local mode Enable Disable Multipump profile selection Compatibility for models A, B, C Generic Grundfos profile Automatic General settings Language Set date and time Select date format Set date Select time format...

  • Page 38: Home" Menu

    8.5 "Home" menu 8.6 "Status" menu Navigation Navigation "Home" "Home" > "Status" Press to go to the "Home" menu. Press and go to the "Status" menu with This menu offers the following (factory setting): This menu offers status information on the following: •...

  • Page 39: Settings" Menu

    8.6.1 "Heat energy monitor" Navigation "Home" > Status > "Heat energy monitor" > "Estimated flow" The internal sensor estimates the difference in pressure between the inlet and outlet ports of the pump. The measurement is not a direct differential-pressure measurement, but by knowing the hydraulic design of the pump, you can estimate the differential pressure across the pump.
  • Page 40 8.7.1 "Setpoint" 8.7.3 "Control mode" Navigation Navigation "Home" > "Settings" > "Control mode" "Home" > "Settings" > "Setpoint" Setting Set the operating mode to "Normal" before you 1. Press [OK]. enable a control mode. 2. Select digit with and adjust with 3.
  • Page 41 L2 [m] integral time. You can only set positive values. Models B, C and D: 10 + 5 Change the control settings by means of the display or Grundfos - 0.5 Δt GO. You can set both positive and negative values.
  • Page 42 8.7.5 "FLOWLIMIT" 8.7.6 "Analog Input" Navigation Navigation "Home" > "Settings" > "Analog Input" "Home" > "Settings" > "FLOWLIMIT" This menu offers the following options: This menu offers the following options: • Function of analog input • Enable FLOWLIMIT function • Unit •...
  • Page 43 8.7.7 "Relay outputs" 8.7.8 "Setpoint influence" Navigation Navigation "Home" > "Settings" > "Relay outputs" "Home" > "Settings" > "Setpoint influence" This menu offers the following options: This menu offers the following options: • Relay output 1 • External setpoint function •...
  • Page 44 Setting 8.7.9 "Bus communication" 1. Select "Temperature influence" with and press [OK]. 2. Choose the desired maximum temperature with press [OK]. When this function is enabled in proportional- or constant-pressure control mode, the setpoint for head is reduced according to the liquid temperature. You can set the temperature influence to function at liquid temperatures below 80 or 50 °C.
  • Page 45 • French older BMS. You enable this function by choosing "Automatic" in the display. • German "Generic Grundfos profile" overrules auto detection, and the • Greek pump runs as a model D. However, if your BMS system or • Hungarian existing pumps are older versions, we recommend that you •...
  • Page 46 "Set date and time" This menu offers the following: • SI or US units • Customised units. In this menu you can select between SI and US units. The setting can be made generally for all parameters or customised for each individual parameter: •...
  • Page 47 "Alarm and warning settings" "Define Home display" Navigation "Home" > "Settings" > "General settings" > "Define Home display" Navigation This menu offers the following: "Home" > "Settings" > "General settings" > "Alarm and warning • Select Home display type settings" –...

  • Page 48: Assist" Menu

    "Display brightness" 8.8 "Assist" menu Navigation Navigation "Home" > "Settings" > "General settings" > "Display brightness" "Home" > "Assist" Setting Press and go to the "Assist" menu with 1. Press [OK]. The menu guides you through and offers the following: 2.

  • Page 49: Description Of Control Mode

    XXXX XXXX Model: Made in Germany XXXX Grundfos Holding A/S, DK - 8850 Bjerringbro, Denmark enmark I is defined as master. Fig. 64 Identify the master pump on a twin-head pump For detailed information on the control modes, see section 7.5 Multipump...

  • Page 50: Servicing The Product

    9. Servicing the product 9.3 Disassembling the plug Before dismantling Step Action Illustration WARNING Electric shock Death or serious personal injury - Make sure that other pumps or sources do not force flow through the pump even if the pump is Loosen the cable stopped.

  • Page 51: Fault Finding The Product

    The pump is currently being accessed by permanently on in addition to another indication. Grundfos GO. Signals from Grundfos Eye The operating condition of the pump is indicated by Grundfos Eye on the operating panel when it communicates with a remote control. Indication...

  • Page 52: Fault Finding Table

    "Alarm" electronics. operation. See code (29) "Forced pumping". Switch off the pump on the main switch. If the light in Grundfos Eye is on, the pump is running Other pumps or sources force in forced-pumping mode. "Forced pumping" (29) flow through the pump even if Check the system for defective non-return "Alarm"...

  • Page 53: Fault Finding

    10.3 Fault finding Reset a fault indication in one of the following ways: • When you have eliminated the fault cause, the pump reverts to normal duty. • If the fault disappears by itself, the fault indication is automatically reset. The fault cause is stored in the pump alarm log.

  • Page 54: Accessories

    The radio communication between the pump and Grundfos GO is encrypted to protect against misuse. Grundfos GO is available in Apple App Store and Google Play. Gateway Grundfos GO replaces the Grundfos R100 remote control. This means that all products supported by R100 are now supported by Grundfos GO.
  • Page 55 11.2.1 Description of communication interface modules Module Fieldbus protocol Description Functions CIM 050 CIM 050 is a Grundfos communication interface GENIbus module used for CIM 050 has terminals for the GENIbus connection. communication with a GENIbus network. CIM 100 CIM 100 has terminals for the LonWorks CIM 100 is a Grundfos connection.
  • Page 56 Fieldbus protocol Description Functions CIM 270 With CIM 270 you have wireless access to your CIM 270 is a Grundfos GSM or account anywhere, anytime when you have an GPRS modem used for internet connection, for example via a smartphone, communication with a tablet PC, laptop or computer.
  • Page 57 11.2.2 Installing a communication interface module WARNING Electric shock Death or serious personal injury - Make sure that other pumps or sources do not force flow through the pump even if the pump is stopped. This will cause the motor to act like a generator, resulting in voltage on the pump.
  • Page 58 Step Action Illustration Fit the communication interface module as illustrated and click it on. Tighten the screw holding the communication interface module and secure the earth connection. For connection to fieldbus networks, see the installation and operating instructions for the desired communication interface module.

  • Page 59: Counterflanges

    The system only requires an internet connection, a web browser, a Grundfos Remote Management modem and an antenna as well as a contract with Grundfos allowing you to monitor and manage Grundfos pump systems. You have wireless access to your account anywhere and anytime you have an internet connection, for example via a mobile device.

  • Page 60: External Sensors

    [VDC] measurement EPDM connection number [bar] [°C] 4-20 mA 12.5 - 30 ● 97747194 Grundfos DPI 0 - 0.6 0-100 0-10 VDC 16.5 - 30 ● ● 97747202 4-20 mA 12.5 - 30 ● 97747195 Grundfos DPI 0 - 1.0...

  • Page 61: Blanking Flange

    11.6 Blanking flange 12. Technical data A blanking flange is used to blank off the opening when one of the Supply voltage pump heads of a twin-head pump is removed for service to 1 x 230 V ± 10 %, 50/60 Hz, PE. enable uninterrupted operation of the other pump.

  • Page 62: Sensor Specifications

    4 to 10 W, depending on activity, such as reading the display, use The values in the table below apply to single-head of Grundfos GO, interaction with modules. pumps and twin-head pumps in single-head 4 W when the pump is stopped and there is no activity.

  • Page 63: Disposing Of The Product

    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 a product means that it must be disposed of separately from household waste.
  • Page 64 Dimensions, single-head pumps, threaded versions Dimensions [mm] Pump type MAGNA3 25-40 (N) 1 1/2 MAGNA3 25-60 (N) 1 1/2 MAGNA3 25-80 (N) 1 1/2 MAGNA3 25-100 (N) 1 1/2 MAGNA3 25-120 (N) 1 1/2 MAGNA3 32-40 (N) MAGNA3 32-60 (N)
  • Page 65 Fig. 3 Dimensions, single-head pumps, flanged versions Dimensions [mm] Pump type MAGNA3 32-120 F (N) 90/100 14/19 MAGNA3 40-80 F (N) 100/110 14/19 MAGNA3 40-100 F (N) 100/110 14/19 MAGNA3 40-120 F (N) 100/110 14/19 MAGNA3 40-150 F (N) 100/110 14/19 MAGNA3 40-180 F (N) 100/110...
  • Page 66 Fig. 4 Dimensions, twin-head pumps, threaded versions Dimensions [mm] Pump type MAGNA3 D 32-40 MAGNA3 D 32-60 MAGNA3 D 32-80 MAGNA3 D 32-100 Fig. 5 Dimensions, twin-head pumps, flanged versions Dimensions [mm] Pump type L7 B1 B3 B7 H1 H2 H3 D1 D2 MAGNA3 D 220 73 120 85 158 35...
  • Page 67 Fig. 6 Dimensions, twin-head pumps Dimensions [mm] Pump type MAGNA3 D 204 84 512 220 294 130 260 69 303 372 40 100/110 150 14/19 M12 Rp 1/4 40-120 F MAGNA3 D 204 84 512 220 294 130 260 69 303 372 40 100/110 150 14/19 M12 Rp 1/4 40-150 F MAGNA3 D...
  • Page 68 Flange forces and moments Maximum permissible forces and moments from the pipe connections acting on the pump flanges or threaded connections are indicated in fig. 7. Fig. 7 Forces and moments from the pipe connections acting on the pump flanges or threaded connections Force Moment [Nm]...
  • Page 69 Appendix 1. 中国RoHS...
  • Page 71 GRUNDFOS Pumps (Hong Kong) Ltd. Turkey Norway BOMBAS GRUNDFOS DO BRASIL Unit 1, Ground floor GRUNDFOS POMPA San. ve Tic. Ltd. Sti. Av. Humberto de Alencar Castelo Branco, Siu Wai Industrial Centre GRUNDFOS Pumper A/S Gebze Organize Sanayi Bölgesi 29-33 Wing Hong Street &...
  • Page 72 98091805 0719 ECM: 1265030 www.grundfos.com...

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