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Summary of Contents for Grundfos MG 71A2
- Page 1 GRUNDFOS INSTRUCTIONS Installation and operating instructions...
- Page 3 English (GB) Installation and operating instructions ............4 Deutsch (DE) Montage- und Betriebsanleitung .
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Page 4: Table Of Contents
Safety ....... . . 4 The symbols and hazard statements below may appear in Grundfos Product introduction. -
Page 5: Product Introduction
The motor has two nameplates: These installation and operating instructions apply to these • nameplate with electrical data (50 and 60 Hz) Grundfos MG motors: • nameplate with mechanical data (irrespective of frequency). The nameplates are positioned on the side of the motor. -
Page 6: Receiving The Product
340 kg (3.4 kN) Frame sizes 71 and 80 have no eyebolts. 3.2.2 Storage Until installation, Grundfos motors should be stored in the packaging in which they were delivered. Store the motors in an enclosed, dry and well-ventilated room. For protection, treat unprotected machine surfaces (shaft ends and flanges) with a corrosion inhibitor. -
Page 7: Drain Holes
4.2 Drain holes 4.3 Motor bearings As standard, MG motors have drain holes in the drive end of the The motor bearing type is stated on the nameplate. stator housing. 4.3.1 Motors with lubricating nipples If the motor is installed in a humid environment or in areas with high Frame size 160 and 180 motors have lubricating nipples both in the air humidity, open the bottom drain hole. -
Page 8: Operating Conditions
Grundfos motors are designed for operation at temperatures up to 5.2.1 Phase insulation 40 °C. Grundfos MG motors are capable of continuous operation at ambient temperatures up to 60 °C, however subject to a shorter MG 71 and 80 bearing life. -
Page 9: Mechanical Installation
See the section about drain holes. 5.2.4 Speed Related information Basically, MG motors are not suitable for oversynchronous operation. Contact Grundfos if oversynchronous operation is 4.2 Drain holes required. Oversynchronous operation means that the motor runs at a frequency higher than 60 Hz. This can be achieved by using a... -
Page 10: Outdoor Installation
‐ Before starting any work on the product, switch off the Grundfos recommends installing motor and pump on a foundation power supply. Make sure that the power supply cannot which is heavy enough to provide permanent and rigid support. The be accidentally switched on. -
Page 11: Electrical Connection
7.2 Electrical connection 8. Starting up the product The electrical installation should be carried out by authorised 8.1 Measuring the insulation resistance persons in accordance with local regulations. The wiring diagram is located in the terminal box cover. Measure the insulation resistance before start-up and in case of any risk of moisture in the windings. -
Page 12: Service
Grundfos Product Center > Service. more often than if it is installed in a non-dusty environment. If you have any questions, please contact the nearest Grundfos In standard motors, condensed water cannot escape. The drain company. -
Page 13: Fault Finding
Thermal protection tripped. 1. Use the public or private waste collection service. Contacts of motor-protective circuit breaker or magnet coil defective. 2. If this is not possible, contact the nearest Grundfos company or service workshop. Control circuit defective. Blocked rotor. - Page 14 Maximum number of starts per hour 2-pole motors 4-pole motors Maximum number of Maximum number of Type designation Type designation starts per hour starts per hour MG 71A2 MG 71A4 MG 71B2 MG 71B4 MG 80A2 MG 80A4 MG 80B2 MG 80B4 MG 90SA2...
- Page 15 Dimensional sketches Foot-mounted motor, IM B 3 B’ Foot-mounted motor with free-hole flange, IM B 35 Motor with free-hole flange, IM B5/V1 Foot-mounted motor with tapped-hole flange, IM B 34 Motor with tapped-hole flange, IM B14/V18...
- Page 16 Dimensions, 2-pole...
- Page 17 Dimensions, 4-pole...
- Page 18 GR: Δήλωση συμμόρφωσης ΕΕ Nous, Grundfos, déclarons sous notre seule responsabilité, que les Εμείς, η Grundfos, δηλώνουμε με αποκλειστικά δική μας ευθύνη ότι produits MG/ML, auxquels se réfère cette déclaration, sont τα προϊόντα MG/ML, στα οποία αναφέρεται η παρακάτω δήλωση, conformes aux Directives du Conseil concernant le rapprochement συμμορφώνονται...
- Page 19 These motors must not be put into service until the machinery into which they are to be incorporated has been declared in conformity with the relevant directives. This EU declaration of conformity is only valid when published as part of the Grundfos installation and operating instructions (publication numbers 98079951 (MG) and 99381720 (ML)) or safety instructions (publication number 98079934).
- Page 20 Declaration of conformity GB: Moroccan declaration of conformity FR: Déclaration de conformité marocaine We, Grundfos, declare under our sole responsibility that the Nous, Grundfos, déclarons sous notre seule responsabilité que les products to which the declaration below relates, are in conformity produits auxquels se réfère cette déclaration, sont conformes aux...
- Page 21 Declaration of conformity UK declaration of conformity We, Grundfos, declare under our sole responsibility that the products to which the declaration below relates, are in conformity with UK regulations, standards and specifications to which conformity is declared, as listed below:...
- Page 22 Declaration of conformity GB: Ukrainian declaration of conformity We, Grundfos, declare under our sole responsibility that the products to which the declaration below relates, are in conformity with Ukrainian resolutions, standards and specifications to which conformity is declared, as listed below:...
- Page 23 Tel.: +387 33 592 480 Centre Turkey Fax: +387 33 590 465 29-33 Wing Hong Street & 68 King Lam GRUNDFOS Pumper A/S GRUNDFOS POMPA San. ve Tic. Ltd. Sti. www.ba.grundfos.com Street, Cheung Sha Wan Strømsveien 344 Gebze Organize Sanayi Bölgesi E-mail: grundfos@bih.net.ba...
- Page 24 98079951 03.2022 ECM: 1336680...
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