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Related Manuals for Grundfos SRG Series
Summary of Contents for Grundfos SRG Series
- Page 1 GRUNDFOS INSTRUCTIONS 50 Hz Installation and operating instructions...
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Page 2: Table Of Contents
Original installation and operating instructions Warning These installation and operating instructions Prior to installation, read these installation describe Grundfos SRG 50 Hz recirculation pumps. and operating instructions. Installation and Sections 1-5 give the information necessary to be operation must comply with local... -
Page 3: Safety Instructions
2. Safety instructions Starting-up the product Warning Warning When loosening the oil level screw, note Before starting work on the product, make that pressure may have built up in the sure that the fuses have been removed or chamber. the mains switch has been switched off. Do not remove the screw until the pressure Make sure that the power supply cannot has been fully relieved. -
Page 4: Receiving The Product
See fig. 1. If the pump or any accessories have been damaged during transportation, contact your local Grundfos company before continuing to install the equipment. Do not dismantle a damaged new component for further inspection, unless instructed by your local Grundfos company. -
Page 5: Torques
4.2 Torques All nuts and screws used for the installation must be made of stainless steel. Use grease (Alu-paste) together with a spring washer or lock nut; otherwise, use Loctite or a similar product for lubrication and locking. All stainless-steel nuts and screws must be tightened to the following torques: Screws F-Class 70 Screws F-Class 80... - Page 6 4. Drill the holes for the mounting screws for the top fixation bracket in the concrete. 5. Mount the screws and fit the top fixation bracket. 6. Depending on the length of the column profile, weld the turnable part of an intermediate fixation bracket to the column profile.
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Page 7: Electrical Connection
Warning Lifting wire (15) Make sure the power supply to the control cabinet has been switched off. Power 22. Connect the power supply cable to the terminals supply in the control cabinet. cable Snap hook 4.4 Electrical connection The electrical connections must be carried out by a qualified electrician in accordance with local Wire clamp Cable... - Page 8 4.4.1 Starting method Continuous operation We recommend star-delta starting, soft starter or frequency converter throughout the entire power range. Intermittent operation Start via softstarter or frequency converter is mandatory throughout the entire power range. 4.4.2 Wiring diagrams Fig. 12 Three PTC sensors Terminals Description Ends of the three stator windings...
- Page 9 4.4.4 Frequency converter operation 4.4.6 Recommendations All SRG pumps are designed for frequency converter • Do not reduce the motor speed to less than 30 % operation for energy saving and for soft start. For of the rated speed. frequency converter operation, please observe the •...
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Page 10: Electrical Protection
The pumps are provided with the following type of If the monitoring function is required, the leak sensor motor protection: must be connected to a Grundfos relay, type ALR-20/ Standard SRG pumps incorporate three bimetallic PTO thermal switches (PTO = Protection Thermique The ALR-20/A relay must be ordered separately. -
Page 11: Protection Against Electro-Chemical Corrosion
Fig. 13 Adjusting the relay Netz Rel. arnold ag CH - 6105 Schachen A Grundfos Company Lecksonden Relais Netz 230V 50-60Hz P3VA II (2)G [EEx ib] IIC nur für den Anschluss von Arnold AG Lecksonden Typ AL05 Ex Fig. 15... -
Page 12: Starting-Up The Product
Gearbox Impeller Hydraulic inlet 6.1 Applications Grundfos SRG recirculation pumps are used for the pumping of return sludge in sewage treatment plants and for other pump applications involving a high flow rate and low head. The pumps are designed for continuous operation (S1). -
Page 13: Identification
6.2 Identification 6.2.1 Type key Example 814. Type range SRG: Submersible recirculation pump with gearbox Motor output power, P2 Code from type designation/10 [kW] 70: 7 kW Impeller diameter [cm] 30: 30 cm Impeller speed [min 814: 814 min Impeller blade pitch [°] 25: 25 °... -
Page 14: Servicing The Product
Product number classified as contaminated. Liquid temperature range If Grundfos is requested to service the pump, Production site Grundfos must be contacted with details about the pumped liquid, etc. before the pump is returned for Enclosure class according to IEC service. -
Page 15: Service Chart
If damaged, the cable must be replaced by Grundfos. Change the oil whenever it If the shaft seal housing is In case of wear, replace lip contains water or is not monitored for the seal and wear ring. -
Page 16: Oil
7.3 Oil 7.4 Changing the oil Place the pump in a horizontal position on supports 7.3.1 Oil quality and place a pan underneath to collect the oil. Gear oil designation according to DIN 51502: ISO VG 68. Warning When loosening the oil level screw, note 7.3.2 Oil quantity that pressure may have built up in the chamber. -
Page 17: Fault Finding The Product
Check the overload relay. Set the relay to faulty. the rated current. See section 4.5.3 Overload relays. Leak sensor has cut out the pump. Contact Grundfos. Humidity in motor. Contact Grundfos. Pump starts, but Stator windings are faulty. Contact Grundfos. - Page 18 Call an electrician. Impeller cannot rotate freely. Clean the impeller and check manually that it can rotate freely. Stator windings are faulty. Contact Grundfos. Pump runs on two phases. 1. Check the electrical connections. 2. Replace faulty fuses. 3. Call an electrician.
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Page 19: Technical Data
Other cable lengths are available on request. environmentally sound way: 1. Use the public or private waste collection service. 9.2 Motor 2. If this is not possible, contact the nearest Grundfos company or service workshop. Maximum installation 20 m below the liquid depth surface... - Page 20 Appendix Dimensions and weights Pump 50 Hz Weight Pump type [kW] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [kg] SRG.08.30.526. SRG.10.30.606. SRG.13.30.678. SRG.16.30.745 SRG.18.30.806. SRG.30.30.517. SRG.40.30.593. SRG.50.30.684. SRG.60.30.752. SRG.70.30.814. SRG.35.50.257. SRG.50.50.291. SRG.65.50.343. 1119 SRG.80.50.378. SRG.100.50.412. 10.0 SRG.70.80.263. 1129 1237 1006 1225 1015...
- Page 21 ALR-20/A relay 10 4 A1 A2 Rel. Netz Netz 230V 40-60Hz P3VA Rel. Ue 400V le 2.5A AC15 ALR 20/A 42.5...
- Page 22 GR: ∆ήλωση συμμόρφωσης ΕΕ Nous, Grundfos, déclarons sous notre seule responsabilité, que le Εμείς, η Grundfos, δηλώνουμε με αποκλειστικά δική μας ευθύνη ότι το produit SRG, auquel se réfère cette déclaration, est conforme aux προϊόν SRG, στο οποίο αναφέρεται η παρακάτω δήλωση, Directives du Conseil concernant le rapprochement des législations...
- Page 23 – RoHS Directives (2011/65/EU and 2015/863/EU). Standard used : EN 50581:2012 This EU declaration of conformity is only valid when published as part of the Grundfos installation and operating instructions publication number 98826127 Székesfehérvár, 30th af April 2019 Róbert Kis...
- Page 24 Руководство по эксплуатации ЕАС Руководство по эксплуатации Руководство по эксплуатации на данное изделие является составным и включает в себя несколько частей: Часть 1: настоящее «Руководство по эксплуатации». Часть 2: электронная часть «Паспорт. Руководство по монтажу и эксплуатации» размещенная на сайте компании...
- Page 25 010/2011«Մեքենաների և սարքավորումների անվտանգության վերաբերյալ» ; ТР ТС 020/2011 «Տեխնիկական միջոցների էլեկտրամագնիսական համատեղելիության վերաբերյալ»: Համապատասխանության հավաստագիր՝ № TC RU C-DK.АИ30.В.01917, գործողության ժամկետը մինչև՝ 15.09.2020թ. Տրված է՝ «ԻՎԱՆՈՎՈ-ՍԵՐՏԻՖԻԿԱՏ» ապրանքների սերտիֆիկացման մարմնի կողմից: «Իվանովոյի Սերտիֆիկացման հիմնադրամ» ՍՊԸ : Հասցե՝ 153032, Ռուսաստանի Դաշնություն, քաղաք Իվանովո, Ստանկոստրոիտելների փողոց, տուն 1: http://net.grundfos.com/qr/i/98939734...
- Page 26 Argentina China Hong Kong Bombas GRUNDFOS de Argentina S.A. GRUNDFOS Pumps (Shanghai) Co. Ltd. GRUNDFOS Pumps (Hong Kong) Ltd. Ruta Panamericana km. 37.500 Centro 10F The Hub, No. 33 Suhong Road Unit 1, Ground floor Industrial Garin Minhang District Siu Wai Industrial Centre 1619 Garín Pcia.
- Page 27 Malaysia Serbia Turkey GRUNDFOS Pumps Sdn. Bhd. Grundfos Srbija d.o.o. GRUNDFOS POMPA San. ve Tic. Ltd. 7 Jalan Peguam U1/25 Omladinskih brigada 90b Sti. Glenmarie Industrial Park 11070 Novi Beograd Gebze Organize Sanayi Bölgesi 40150 Shah Alam Phone: +381 11 2258 740...
- Page 28 98826127 0519 ECM: 1248714 www.grundfos.com...