Grundfos ALPHA1 B Installation And Operating Instructions Manual
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Grundfos ALPHA1 B Installation And Operating Instructions Manual

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GRUNDFOS INSTRUCTIONS
ALPHA1
Model B
Installation and operating instructions

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Summary of Contents for Grundfos ALPHA1 B

  • Page 1 GRUNDFOS INSTRUCTIONS ALPHA1 Model B Installation and operating instructions...

  • Page 2: Table Of Contents

    Scope of delivery 1.2 Hazard statements Installing the product The symbols and hazard statements below may appear in Mechanical installation Grundfos installation and operating instructions, safety Positioning the pump instructions and service instructions. Control box positions Insulating the pump housing...

  • Page 3: Notes

    1.3 Notes 3. Installing the product The symbols and notes below may appear in Grundfos 3.1 Mechanical installation installation and operating instructions, safety instructions and service instructions. 3.1.1 Mounting the product Observe these instructions for explosion-proof products. A blue or grey circle with a white graphical symbol indicates that an action must be taken.

  • Page 4: Positioning The Pump

    3.2 Positioning the pump 3.3.3 Changing the control box position WARNING 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. The pumped liquid may be scalding hot and under high pressure.

  • Page 5: Insulating The Pump Housing

    3.4 Insulating the pump housing 4. Electrical installation WARNING 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. WARNING Electric shock Death or serious personal injury...

  • Page 6: Assembling The Plug

    4.1 Assembling the plug Step Action Illustration Step Action Illustration 0.5 - 1.5 mm 12 mm Fit the cable gland Insert the power and plug cover to supply plug into the cable. Strip the the male plug in cable conductors the pump control 7 mm as illustrated.

  • Page 7: Starting Up The Product

    5. Starting up the product 5.3 Venting the pump 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 section 9.

  • Page 8: Product Introduction

    6. Product introduction 6.1 Product description Fig. 11 Model type on the nameplate 6.2 Applications The pump is designed for the circulation of water in heating systems, domestic hot-water systems as well as air-conditioning and cold-water systems. Fig. 9 Pumped liquids, warnings and operating conditions Cold-water systems are defined as systems where the ambient temperature is higher than the temperature of the pumped liquid.

  • Page 9: Pumped Liquids

    Death or serious personal injury Frequency [Hz] - In domestic hot-water systems, the temperature of Data matrix code the pumped liquid must always be according to Grundfos address local legislation. Production code: CAUTION • 1st and 2nd figures: year Corrosive substance •...

  • Page 10: Control Functions

    6.4.2 Type key 7.3 Light fields indicating the pump setting The pump has nine performance settings which you can select Example ALPHA1 25 -40 N 180 with the button. See fig. (5). Pump type The pump setting is indicated by nine light fields in the display. [ ]: Standard version See fig.

  • Page 11: Control Modes

    7.5 Control modes 7.5.2 Pump setting for one-pipe heating systems 7.5.1 Pump setting for two-pipe heating systems Fig. 17 Selection of pump setting for system type Recommended and alternative pump settings according to fig. Fig. 15 Selection of pump setting for system type Recommended and alternative pump settings according to fig.
  • Page 12 7.5.3 Pump setting for underfloor heating systems 7.5.4 Pump setting for domestic hot-water systems Fig. 19 Selection of pump setting for system type Fig. 21 Selection of pump setting for system type Recommended and alternative pump settings according to fig. Recommended and alternative pump settings according to fig.

  • Page 13: Pump Performance

    7.6 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 10. Performance curves. Fig. 23 Pump setting in relation to pump performance Setting Pump curve Function Lowest...

  • Page 14: Fault Finding The Product

    8. Fault finding the product WARNING 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. WARNING Pressurised system Minor or moderate personal injury - Before dismantling the pump, drain the system or close the isolating valves on either side of the...

  • Page 15: Technical Data

    9. Technical data 9.1 Data and operating conditions Supply voltage 1 x 230 V ± 10 %, 50 or 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 16: Dimensions

    9.2 Dimensions Dimensional sketches and table of dimensions. Fig. 24 ALPHA1 model B Dimensions Pump type ALPHA1 15-40 ALPHA1 15-50 ALPHA1 15-50 N* G1 1/2 ALPHA1 15-60 ALPHA1 15-50/60* G1 1/2 ALPHA1 15-80 ALPHA1 25-40 G1 1/2 ALPHA1 25-40 N G1 1/2 ALPHA1 25-40 G1 1/2...

  • Page 17: Performance Curves

    10. Performance curves 10.1 Guide to performance curves Each pump setting has its own performance curve. A power curve, P1, belongs to each performance curve. The power curve shows the pump power consumption in watt at a given performance curve. The P1 value corresponds to the value that you can read from the pump display.

  • Page 18: Performance Curves, Alpha1, Xx-40 (N)

    10.3 Performance curves, ALPHA1, XX-40 (N) Q [m³/h] Q [m³/h] Fig. 26 ALPHA1, XX-40 Setting Min. 0.04 Max. 0.18...

  • Page 19: Performance Curves, Alpha1, Xx-50 (N)

    10.4 Performance curves, ALPHA1, XX-50 (N) Q [m³/h] Q [m³/h] Fig. 27 ALPHA1, XX-50 Setting Min. 0.04 Max. 0.24...

  • Page 20: Performance Curves, Alpha1, Xx-60 (N

    10.5 Performance curves, ALPHA1, XX-60 (N), XX-50/60 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 21: Performance Curves, Alpha1, Xx-80 (N)

    10.6 Performance curves, ALPHA1, XX-80 (N) Q [m³/h] Q [m³/h] Fig. 29 ALPHA1, XX-80 Setting Min. 0.04 Max. 0.44...

  • Page 22: Accessories

    11. Accessories 11.1 Unions Product numbers, unions Ball valve with Union nut with internal Union nut with Ball valve with internal compression Union nut with soldering fitting threads external threads threads fitting ∅22 ∅28 ∅18 ∅22 ∅28 ∅42 1 1/4 1 1/4 1 1/4 25-xx...

  • Page 23: Insulating Shells

    98091787 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 25 Unit 1, Ground floor Turkey Av. Humberto de Alencar Castelo Branco, Siu Wai Industrial Centre GRUNDFOS Pumper A/S GRUNDFOS POMPA San. ve Tic. Ltd. Sti. 29-33 Wing Hong Street & Strømsveien 344 Gebze Organize Sanayi Bölgesi CEP 09850 - 300...
  • Page 26 99352881 1218 ECM: 1250580 www.grundfos.com...

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