Grundfos ALPHA2 Series Installation And Operating Instructions Manual
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Grundfos ALPHA2 Series Installation And Operating Instructions Manual

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GRUNDFOS INSTRUCTIONS
ALPHA2/ALPHA3
Installation and operating instructions

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Summary of Contents for Grundfos ALPHA2 Series

  • Page 1 GRUNDFOS INSTRUCTIONS ALPHA2/ALPHA3 Installation and operating instructions...

  • Page 2: Table Of Contents

    English (GB) Installation and operating instructions Original installation and operating instructions 11.5 Performance curves, ALPHAx XX-60 (N) 11.6 Performance curves, ALPHAx 25-40 A CONTENTS 11.7 Performance curves, ALPHAx 25-60 A 11.8 Performance curves, ALPHAx XX-80 (N) These installation and operating instructions describe ALPHAx. Accessories Sections 1-6 give the information necessary to be able to unpack, 12.1 Unions and valve kits...

  • Page 3: Symbols Used In This Document

    1.2 Symbols used in this document 1.3 Other important notes 1.2.1 Warnings against hazards involving risk of death or personal injury A blue or grey circle with a white graphical symbol indicates that an action must be taken. DANGER Indicates a hazardous situation which, if not avoided, will result in death or serious personal injury.

  • Page 4: Installing The Product

    3. Installing the product The arrows on the pump housing indicate the flow direction through the pump. See fig. 1, pos. A. 3.1 Mechanical installation See section 10.2 Dimensions, ALPHAx XX-40, XX-50, XX-60, or section XX-80 10.3 Dimensions, ALPHAx 25-40 A, 25-60 1.

  • Page 5: Control Box Positions, Alpha Solar

    3.2.2 Positioning the control box in air-conditioning and CAUTION cold-water systems Hot surface Position the control box with the plug pointing downwards. See Minor or moderate personal injury. fig. 4. - Position the pump so that persons cannot accidentally come into contact with hot surfaces. CAUTION Pressurised system Minor or moderate personal injury.

  • Page 6: Insulating The Pump Housing

    3.4 Insulating the pump housing 4. Electrical installation Fig. 9 Electrical connection DANGER Electric shock Death or serious personal injury - Switch off the power supply before starting any work on the product. Make sure that the power supply cannot be accidentally switched on. DANGER Electric shock Fig.

  • Page 7: Assembling The Plug

    4.1 Assembling the plug Step Action Illustration Step Action Illustration Max. 1.5 mm Screw the cable gland onto the 12 mm Fit the cable gland power supply and plug cover to plug. the cable. Strip the cable 7 mm conductors as illustrated.

  • Page 8: Disassembling The Plug

    4.2 Disassembling the plug 4.3 Electrical installation, ALPHA SOLAR Step Action Illustration Loosen the cable gland and remove it from the plug. PWM = Power = Fig. 11 Control box connections Pull off the plug cover while 4.4 Power supply connection, ALPHA SOLAR pressing on both Connect the pump to the power supply with the TE Superseal sides.

  • Page 9: Starting Up The Product

    5. Starting up the product 5.3 Venting the heating system 5.1 Before startup Do not start the pump until the system has been filled with liquid and vented. Make sure that the required minimum inlet pressure is available at the pump inlet. See sections 3.

  • Page 10: Product Introduction

    6. Product introduction 6.1 Product description Max. 95 %RH Fig. 15 Model type on the packaging IPX4D Min./Max. ° ° +2 C / +110 Max. 1.0 MPa (10 bar) Min./Max. ° ° 0 C / +40 Fig. 16 Model type on the nameplate <...

  • Page 11: Pumped Liquids

    6.3 Pumped liquids 6.4 Identification For more information about the pumped liquids, warnings and 6.4.1 Nameplate operating conditions, see fig. 14. In heating systems, the water must meet the requirements of accepted standards on water quality in heating systems, for example the German standard VDI 2035.
  • Page 12 The table below shows the ALPHAx models with built-in functions. Model B Model C Model D ALPHA3 model A Functions/features 2012 2015 2015 2015 AUTO ● ● ● ● ADAPT Proportional pressure ● ● ● ● Constant pressure ● ● ●...

  • Page 13: Control Functions

    7. Control functions Button Active light fields Description presses 7.1 Elements on the control panel factory setting AUTO ADAPT Lowest proportional-pressure curve, PP1 Intermediate proportional-pressure curve, PP2 Highest proportional-pressure curve, PP3 Lowest constant-pressure curve, Intermediate Fig. 18 Control panel constant-pressure curve, Highest Pos.

  • Page 14: Button For Selection Of Pump Setting

    7.6 Button for selection of pump setting Every time you press the button , the pump setting is changed. See fig. 18, pos. 5. A cycle is ten button presses. See section 7.3 Light fields indicating the pump setting. 7.7 Control modes Fig.
  • Page 15 7.7.3 Pump setting for underfloor heating systems 7.7.4 Pump setting for domestic hot-water systems Fig. 24 Selection of pump setting for system type Fig. 26 Selection of pump setting for system type Factory setting: AUTO Factory setting: AUTO ADAPT ADAPT Recommended and alternative pump settings according to fig.

  • Page 16: Pump Performance

    7.8 Pump performance Relation between pump setting and pump performance Figure shows the relation between pump setting and pump performance by means of curves. See also section 11. Performance curves. Fig. 28 Pump setting in relation to pump performance Setting Pump curve Function The AUTO...

  • Page 17: Bypass Valve

    7.9 Bypass valve 8. Operating the product 8.1 Using automatic night setback BYPASS min. HA2 L AUTO Fig. 30 Automatic night setback activated Do not use automatic night setback when the pump is installed in the return pipe of the heating system. If you select speed I, II or III, automatic night setback is disabled.

  • Page 18: Function Of Automatic Night Setback

    For further information, see the ALPHA Reader documentation in 8.3.1 Activating manual summer mode Grundfos Product Center on www.grundfos.com. Activate the manual summer mode by pressing the automatic night setback button 3 to 10 seconds. See fig. 30. The green light 8.6 High-torque start...

  • Page 19: Fault Finding

    9. Fault finding DANGER Electric shock Death or serious personal injury - Switch off the power supply before starting any work on the product. Make sure that the power supply cannot be accidentally switched on. CAUTION Pressurised system Minor or moderate personal injury - Before dismantling the pump, drain the system or close the isolating valves on either side of the pump.

  • Page 20: Technical Data And Installation Dimensions

    10. Technical data and installation dimensions 10.1 Technical data Supply voltage 1 x 230 V ± 10 %, 50/60 Hz, PE Motor protection The pump requires no external motor protection. Enclosure class IPX4D Insulation class Relative humidity Maximum 95 % RH System pressure Maximum 1.0 MPa, 10 bar, 102 m head Liquid temperature...

  • Page 21: Dimensions, Alphax

    10.2 Dimensions, ALPHAx XX-40, XX-50, XX-60, XX-80 Dimensional sketches and table of dimensions. Fig. 33 ALPHAx XX-40, XX-50, XX-60 Dimensions Pump type ALPHAx 15-40 130 60.5 60.5 44.5 44.5 35.8 103.5 ALPHAx 15-50 130 60.5 60.5 44.5 44.5 35.8 103.5 ALPHAx 15-60 130 60.5 60.5...

  • Page 22: Dimensions, Alphax 25-40 A, 25-60 A

    10.3 Dimensions, ALPHAx 25-40 A, 25-60 A Dimensional sketches and table of dimensions. Fig. 34 ALPHAx 25-40 A, 25-60 A Dimensions Pump type ALPHAx 25-40 A 180 63.5 1 1/2 ALPHAx 25-60 A 180 63.5 1 1/2...

  • Page 23: Performance Curves

    11. Performance curves 11.1 Guide to performance curves Each pump setting has its own performance curve. However, AUTO covers a performance range. ADAPT A power curve, P1, belongs to each performance curve. The power curve shows the pump power consumption in watt at a given performance curve.

  • Page 24: Performance Curves, Alphax Xx-40 (N)

    11.3 Performance curves, ALPHAx XX-40 (N) 2.4 Q [m³/h] Q [m³/h] Fig. 36 ALPHAx XX-40 Setting AUTO 3-18 0.04 - 0.18 ADAPT Min. 0.04 Max. 0.18...

  • Page 25: Performance Curves, Alphax Xx-50 (N)

    11.4 Performance curves, ALPHAx XX-50 (N) 0.0 0.2 0.4 0.6 0.8 1.0 Q [m³/h] Q [m³/h] 0.0 0.2 0.4 0.6 0.8 1.0 Fig. 37 ALPHAx XX-50 Setting AUTO 3-26 0.04 - 0.24 ADAPT Min. 0.04 Max. 0.24...

  • Page 26: Performance Curves, Alphax Xx-60 (N)

    11.5 Performance curves, ALPHAx XX-60 (N) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 Q [m³/h] 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 Q [m³/h] Fig.

  • Page 27: Performance Curves, Alphax 25-40 A

    11.6 Performance curves, ALPHAx 25-40 A Q [m³/h] Q [m³/h] Fig. 39 ALPHAx 25-40 A Setting AUTO 3-18 0.04 - 0.18 ADAPT Min. 0.04 Max. 0.18...

  • Page 28: Performance Curves, Alphax 25-60 A

    11.7 Performance curves, ALPHAx 25-60 A Q [m³/h] Q [m³/h] Fig. 40 ALPHAx 25-60 A Setting AUTO 3-34 0.04 - 0.32 ADAPT Min. 0.04 Max. 0.32...

  • Page 29: Performance Curves, Alphax Xx-80 (N)

    11.8 Performance curves, ALPHAx XX-80 (N) Fig. 41 ALPHAx 25-60 A Setting AUTO 3-50 0.04 - 0.44 ADAPT Min. 0.04 Max. 0.44...

  • Page 30: Accessories

    12. Accessories 12.1 Unions and valve kits Product numbers, unions ∅22 ∅28 ∅15 ∅18 ∅22 ∅28 ∅42 1 1/4 1 1/4 1 1/4 15-xx* 15-xx N* 25-xx 529921 529922 529821 529925 529924 G 1 1/2 25-xx N 529971 529972 519805 519806 505539 519808 519809 529977 529978 529979 32-xx 509921 509922...

  • Page 31: Alpha Plugs

    12.3 ALPHA plugs 13.2 Application The new ALPHA SOLAR pump is designed to be integrated in all kinds of solar systems with either matched-flow or constant-flow rate. 13.3 Product description High-efficiency ECM pumps, such as ALPHA SOLAR, must not be speed-controlled by means of an external speed controller which varies or pulses the supply voltage.

  • Page 32: Operating Status

    The supply voltage is low. Make sure that there is sufficient voltage supply to the pump. <160 V Electrical error. Replace the pump and send the pump to the nearest Grundfos service centre. 230 V DANGER Electric shock Death or serious personal injury - Switch off the power supply before starting any work on the product.

  • Page 33: External Pwm Control Mode And Signals

    When you use SIKON HE, you can replace the conventional transfer heat from the primary heat exchanger. 230-V UPS solar pumps by Grundfos ALPHA SOLAR pumps without having to change the controller to a high-efficiency pump Max.
  • Page 34 ALPHA SOLAR xx-75 130/180 >N3D@ >P@ Setting Max. head Curve 1 4.5 m Curve 2 5.5 m Curve 3 6.5 m Curve 4 7.5 m Setting Max. P 1 nom                 4 >PñK@ Curve 1 19 W...

  • Page 35: Disposing Of The Product

    92 % recycling • 3 % incineration • 5 % depositing. Dispose of this product or parts of it in an environmentally sound way according to local regulations. For further information, see the end-of-life information at www.grundfos.com. Subject to alterations.
  • Page 36 GR: ∆ήλωση συμμόρφωσης EC Nous, Grundfos, déclarons sous notre seule responsabilité, que Εμείς, η Grundfos, δηλώνουμε με αποκλειστικά δική μας ευθύνη ότι τα le produit Grundfos ALPHA2/ALPHA3, auquel se réfère cette déclaration, προϊόντα Grundfos ALPHA2/ALPHA3, στα οποία αναφέρεται η παρούσα...
  • Page 37 • EN 16297-3:2012 Bjerringbro, 20st of April 2016 Svend Aage Kaae Technical Director Grundfos Holding A/S Poul Due Jensens Vej 7 8850 Bjerringbro, Denmark Person authorised to compile the technical file and empowered to sign the EC declaration of conformity.
  • Page 39 GRUNDFOS Pumps (Hong Kong) Ltd. Telefax: +64-9-415 3250 Turkey «Порт» Unit 1, Ground floor GRUNDFOS POMPA San. ve Tic. Ltd. Sti. Norway Тел.: +7 (375 17) 286 39 72/73 Siu Wai Industrial Centre Gebze Organize Sanayi Bölgesi Факс: +7 (375 17) 286 39 71 29-33 Wing Hong Street &...
  • Page 40 98092353 0716 ECM: 1188108 www.grundfos.com...

This manual is also suitable for:

Alpha3 seriesAlpha2 15-80 130Alpha2 15-40 130Alpha2 25-40 130Alpha2 25-40 n 130Alpha2 25-50 130 ... Show all

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