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Summary of Contents for Grundfos DMX 221
- Page 1 GRUNDFOS INSTRUCTIONS DMX 221 Dosing pump Installation and operating instructions...
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Page 2: Declaration Of Conformity
Mi, Grundfos, izjavljujemo pod vlastitom odgovornošću da je proizvod Grundfos dichiara sotto la sua esclusiva responsabilità che il prodotto DMX 221, na koji se ova izjava odnosi, u skladu s direktivama ovog Vijeća DMX 221, al quale si riferisce questa dichiarazione, è conforme alle o usklađivanju zakona država članica EU:... - Page 3 A Grundfos declara sob sua única responsabilidade que o produto Мы, компания Grundfos, со всей ответственностью заявляем, что DMX 221, ao qual diz respeito esta declaração, está em conformidade com изделия DMX 221, к которым относится настоящая декларация, as seguintes Directivas do Conselho sobre a aproximação das legislações соответствуют...
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Page 4: Table Of Contents
1.1 Introduction Safety of the system in the event of a failure in the dosing system These installation and operating instructions contain all the information required for starting up and handling the DMX 221 Technical data dosing pump. Identification Type key... -
Page 5: Qualification And Training Of Personnel
If the personnel do not have the necessary knowledge, the DMX 221 dosing pumps are designed according to the latest necessary training and instruction must be given. If necessary, technologies and are carefully manufactured and tested. training can be performed by the manufacturer/supplier at the However, a failure may occur in the dosing system. -
Page 6: Type Key
3.2 Type key Example: DMX 115 - 3 B PP /E /T -X -E 1 QQ X E0 Type range Maximum flow [l/h] Maximum counterpressure [bar] Motor variant PTC motor for frequency control Control variant Standard - manual control Mains plug AR** Analog/pulse control EU (Schuko) -
Page 7: Pump Performance
Adjustment from max. to min. stroke length, within the control range 1:5. Applies to: • water as dosing medium • fully deaerated dosing head • measurement according to Grundfos Water Treatment factory standard no. 0010/0011 • standard pump version. 3.3.2 Performance Applies to: • maximum counterpressure •... -
Page 8: Suction Heights
3.4 Suction heights 3.4.1 Media with a viscosity similar to water Applies to: • counterpressure of 1.5 to 3 bar • non-degassing and non-abrasive media • temperature of 20 °C • stroke length 100 %. 50 Hz 60 Hz Maximum length of Pump type suction line Suction height*... -
Page 9: Ambient And Operating Conditions
Pumps with electronics are only suitable for indoor use! Do not install outdoors! • memory function (stores a maximum of 65000 pulses) • two-stage tank-empty signal (e.g. via Grundfos tank empty Warning sensor) Risk of hot surfaces! • stroke signal/pre-empty signal (adjustable), e.g. as a feedback Pumps with AC motors may become hot. -
Page 10: Materials
3.8.1 Inputs and outputs Inputs Contact signal Maximum load: 12 V, 5 mA Maximum load: 22 Ω Current 0-20 mA Remote on/off Maximum load: 12 V, 5 mA Two-stage tank-empty signal Maximum load: 12 V, 5 mA Dosing controller and diaphragm leakage sensor Outputs Maximum load: 350 Ω... -
Page 11: Dimensional Sketches
3.11 Dimensional sketches Fig. 2 Dimensional sketches of DMX 221 Pump type DMX 4-10 10.5 R 5/8 DMX 7-10 10.5 R 5/8 DMX 7.2-16 10.5 R 5/8 DMX 9-10 10.5 R 5/8 DMX 12-10 10.5 R 5/8 DMX 17-4 10.5... -
Page 12: Transport And Storage
If Grundfos is requested to service the pump, it must be ensured that the pump is free from substances that can be injurious to health or toxic. If the pump has been used for such substances, the pump must be cleaned before it is returned. -
Page 13: Installation
5. Installation 5.1 Optimum installation max. 1m Max. 1 m Fig. 3 Example of optimum installation • For non-degassing media with a viscosity similar to water, the Pos. Components pump can be mounted on the tank (observe the maximum suction height). Dosing tank •... -
Page 14: Mounting
• Note for discharge-side installation: To protect the piping, use • To avoid the siphon effect, install a pressure-loading valve (7i) a pulsation damper (8i) for rigid piping longer than 3 metres in the discharge line and, if necessary, a solenoid valve (14i) in and tubing longer than 5 metres. -
Page 15: Electrical Connections
Observe the local safety regulations! Warning The pump housing must only be opened by personnel authorised by Grundfos! Warning Protect the cable connections and plugs against corrosion and humidity. Only remove the protective caps from the sockets that are being used. -
Page 16: Commissioning
3. Switch on the power supply. 4. Pumps with AR control unit only: Press the "Start/Stop" button Fig. 16 DMX 221 and keep it pressed. – The pump switches to continuous operation. Pos. -
Page 17: Adjusting The Dosing Flow Via The Stroke Length
(8) slowly to the right until the desired dosing flow is Observe the manufacturer’s instructions! reached. The connections must be carried out according to these instructions. Settings of frequency converter when used with Grundfos dosing pumps Pay special attention to the following parameters of the frequency converter: •... -
Page 18: Electronic Diaphragm Leakage Sensor
9.2 Electronic diaphragm leakage sensor To ensure electromagnetic compatibility (EMC), the input cables and current output cables must be screened. 9.2.1 Technical data 1. Connect the screen at one end to PE. Model 230 V (+ 10 %/- 10 %) –... - Page 19 Repairs must only be carried out by authorised • No maintenance is possible by the user. and qualified personnel! • If the electronics does not operate correctly, call Grundfos 9.2.8 Using the contacts service. • Terminals 6 and 7 (potential-loaded) –...
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Page 20: Integral Relief Valve
10. Integral relief valve Warning When dosing dangerous media, observe the 10.1 Function corresponding safety precautions! If the pump is the only pump in the system, the integral relief Wear protective clothing (gloves and goggles) valve (optional) protects the complete discharge side of the when working on the dosing head, connections discharge line system from an excessive pressure build-up. -
Page 21: Fault Finding Chart
Maximum torque: 6 Nm. For this purpose, send the pump to Grundfos or 8. Start up the dosing system. an authorised service workshop. 9. Tighten the screws on the top part of the relief valve after To ensure trouble-free operation, it is recommended to have the 48 operating hours. -
Page 22: Replacing The Diaphragm
11.5 Replacing the diaphragm Adjust the stroke length only while the pump is Caution running! For transport or cleaning, the venting cartridge Caution must be closed. If possible, rinse the dosing head, e.g. by Note supplying it with water. 11.5.1 Switching off the pump 1. -
Page 23: Fault Finding Chart
Leaking suction line. Replace or seal the suction line. suck in. b) Cross-section of the suction line too small or Check with Grundfos specification. suction line too long. c) Clogged suction line. Rinse or replace the suction line. d) Foot valve covered by sediment. -
Page 24: Dosing Curves
13. Dosing curves The dosing curves on the following pages are trend curves. Q [l/h] They apply to: • performance of simple pump (the flow rate is doubled for the double pump) • water as dosing medium 3 bar • suction line with foot valve, 0.5 m flooded suction 3bar 16bar... - Page 25 Q [l/h] Q [l/h] 3 bar 3bar 3 bar 10bar 10bar 10 bar 3bar 10 bar 10 20 30 40 50 60 70 80 90 100 10 20 30 40 50 60 70 80 90 100 h [%] h [%] Fig.
- Page 26 Q [l/h] Q [l/h] 3 bar 3bar 3 bar 4 bar 10bar 4bar 10 bar 3bar 1,5bar 1.5 bar 10 20 30 40 50 60 70 80 90 100 10 20 30 40 50 60 70 80 90 100 h [%] h [%] Fig.
- Page 27 Q [l/h] Q [l/h] 3 bar 10bar 3 bar 3bar 3bar 10 bar 10 bar 10bar 10 20 30 40 50 60 70 80 90 100 10 20 30 40 50 60 70 80 90 100 h [%] h [%] Fig.
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Page 28: Disposal
Fig. 66 DMX 115-3 (60 Hz) 14. Disposal This product or parts of it must be disposed of in an environmentally sound way. Use appropriate waste collection services. If this is not possible, contact the nearest Grundfos company or service workshop. Subject to alterations. - Page 29 Appendix Safety declaration Please copy, fill in and sign this sheet and attach it to the pump returned for service. Note Fill in this document using English or German language. We hereby declare that this product is free from hazardous chemicals, biological and radioactive substances: Product type: ________________________________ Model number: _____________________________...
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Page 31: Www.grundfos.com
GRUNDFOS Pumps (Hong Kong) Ltd. Turkey Iztochna Tangenta street no. 100 Unit 1, Ground floor GRUNDFOS Pumper A/S GRUNDFOS POMPA San. ve Tic. Ltd. Sti. BG - 1592 Sofia Siu Wai Industrial Centre Strømsveien 344 Gebze Organize Sanayi Bölgesi Tel. +359 2 49 22 200 29-33 Wing Hong Street &... -
Page 32: Www.grundfos.com
91834765 1213 ECM: 1125369 www.grundfos.com...
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