Grundfos ALPHA2 Series Installation And Operating Instructions Manual
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Summary of Contents for Grundfos ALPHA2 Series
- Page 1 GRUNDFOS INSTRUCTIONS ALPHA2 / ALPHA3 ALPHA SOLAR Installation and operating instructions...
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Page 2: Table Of Contents
English (GB) Installation and operating instructions Original installation and operating instructions 11.7 Performance curves, ALPHA2 and ALPHA3, 25-60 A 11.8 Performance curves, ALPHA2 and ALPHA3, XX-80 (N) 30 These installation and operating instructions describe ALPHA2, ALPHA3 and ALPHA SOLAR. Accessories 12.1 Unions and valve kits Sections 1-5 give the information necessary to be able to unpack, 12.2 Insulating shells, ALPHA2, ALPHA3... -
Page 3: Symbols Used In This Document
1.2 Symbols used in this document 2. Receiving the product 1.2.1 Warnings against hazards involving risk of death or 2.1 Inspecting the product personal injury Check that the product received is in accordance with the order. Check that the voltage and frequency of the product match DANGER voltage and frequency of the installation site. -
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, ALPHA2 and ALPHA3, XX-40, XX-50, XX-60, XX-80 or section 10.3 Dimensions, ALPHA2 and ALPHA3, 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 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 Death or serious personal injury... -
Page 7: Assembling The Plug
4.1 Assembling the plug Step Action Illustration Step Action Illustration 0.5 - 1.5 mm Screw the cable 7 mm gland onto the 12 mm Fit the cable gland power supply and plug cover to plug. the cable. Strip the cable 12 mm 7 mm conductors as... -
Page 8: Dismantling The Plug
4.2 Dismantling the plug Step Action Illustration Loosen the cable gland and remove it from the plug. Pull off the plug cover while pressing on both sides. Add the conductor guide plate to loosen all three cable conductors at the same time. If the guide plate is missing, then loosen the cable... -
Page 9: Electrical Installation, Alpha Solar
4.3 Electrical installation, ALPHA SOLAR 4.5 Control signal connection, ALPHA SOLAR If you do not need the signal connection, cover it with a blanking plug. See fig. 9. You can control the pump with a low-voltage PWM (pulse-width modulation) signal. The PWM signal is a method for generating an analog signal using a digital source. -
Page 10: Venting The Pump
5.3 Venting the pump 5.4 Venting the heating system A A A A 10 Min. 10 Min. Fig. 14 Venting of the heating system Fig. 13 Venting the pump Vent the heating system as follows: The pump is self-venting through the system. You do not have to vent the pump before startup. -
Page 11: Product Introduction
6. Product introduction 6.1 Product description Max. 95 %RH Fig. 16 Model type on the packaging IPX4D Min./Max. +2 °C / +110 °C Max. 1.0 MPa (10 bar) Min./Max. ° °C 0 C / +40 Fig. 17 Model type on the nameplate <... -
Page 12: Applications
The table below shows the ALPHA2 and APLHA3 models with built-in functions and features. Functions/features ALPHA2 model B ALPHA2 model C ALPHA2 model D ALPHA2 model E ALPHA3 model A Starts from PC 12xx* PC 14xx* PC 15xx* PC 17xx* PC 15xx* AUTO ●... -
Page 13: Identification
6.4 Identification 6.4.2 Type key 6.4.1 Nameplate Example ALPHA2/3 25 -40 N 180 Pump type [ ]: Standard version AUTO Nominal diameter (DN) of inlet and outlet ADAPT ports [mm] Maximum head [dm] [ ]: Cast-iron pump housing A: Pump housing with air separator N: Stainless-steel pump housing Port-to-port length [mm] 7. -
Page 14: Display
7.2 Display 7.4 Light field indicating the status of automatic night setback The display (1) is on when you have switched on the power supply. Light in shows that automatic night setback is active. See fig. 19, pos. 3. See also section 7.5 Button for enabling or disabling The display shows the actual pump power consumption in watt or of automatic night... -
Page 15: Control Modes
7.7 Control modes 7.7.2 Pump setting for one-pipe heating systems 7.7.1 Pump setting for two-pipe heating systems Fig. 23 Selection of pump setting for system type Factory setting: AUTO ADAPT Recommended and alternative pump settings according to fig. Pump setting Heating Fig. - Page 16 7.7.3 Pump setting for underfloor heating systems 7.7.4 Pump setting for domestic hot-water systems Fig. 25 Selection of pump setting for system type Fig. 27 Selection of pump setting for system type Factory setting: AUTO Factory setting: AUTO ADAPT ADAPT Recommended and alternative pump settings according to fig.
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Page 17: 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. 29 Pump setting in relation to pump performance Setting Pump curve Function The AUTO... -
Page 18: Bypass Valve
7.9 Bypass valve 8. Operating the product 8.1 Using automatic night setback BYPASS min. HA2 L AUTO Fig. 31 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 19: Function Of Automatic Night Setback
Android or iOS-based mobile device via when a flow-pipe temperature drop of more than 10 to 15 °C Bluetooth. Together with the Grundfos GO Balance app the within approx. two hours is registered. The temperature drop ALPHA Reader allows you to balance two-pipe radiators and must be at least 0.1 °C/min. -
Page 20: Fault Finding The Product
9. Fault finding the product 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... -
Page 21: Technical Data
10. Technical data 10.1 Data and operating conditions 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 22: Dimensions, Alpha2 And Alpha3
10.2 Dimensions, ALPHA2 and ALPHA3, XX-40, XX-50, XX-60, XX-80 Dimensional sketches and table of dimensions. Fig. 34 ALPHA2 and ALPHA3, XX-40, XX-50, XX-60, XX-80 Dimensions Pump type ALPHA2/3 15-40 130 44.5 44.5 35.8 103.5 ALPHA2/3 15-50 130 44.5 44.5 35.8 103.5 G 1* ALPHA2/3 15-60 130... -
Page 23: Dimensions, Alpha2 And Alpha3, 25-40 A, 25-60 A
10.3 Dimensions, ALPHA2 and ALPHA3, 25-40 A, 25-60 A Dimensional sketches and table of dimensions. Fig. 35 ALPHA2 and ALPHA3, 25-40 A, 25-60 A Dimensions Pump type ALPHA2/3 25-40 A 180 63.5 G 1 1/2 ALPHA2/3 25-60 A 180 63.5 G 1 1/2... -
Page 24: 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 25: Performance Curves, Alpha2 And Alpha3, Xx-40 (N)
11.3 Performance curves, ALPHA2 and ALPHA3, XX-40 (N) Q [m³/h] Q [m³/h] Fig. 37 ALPHA2 and ALPHA3, XX-40 Setting AUTO 3-18 0.04 - 0.18 ADAPT Min. 0.04 Max. 0.18... -
Page 26: Performance Curves, Alpha2 And Alpha3, Xx-50 (N)
11.4 Performance curves, ALPHA2 and ALPHA3, 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. 38 ALPHA2 and ALPHA3, XX-50 Setting AUTO 3-26 0.04 - 0.24 ADAPT Min. 0.04 Max. 0.24... -
Page 27: Performance Curves, Alpha2 And Alpha3, Xx-60 (N)
11.5 Performance curves, ALPHA2 and ALPHA3, 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 28: Performance Curves, Alpha2 And Alpha3, 25-40 A
11.6 Performance curves, ALPHA2 and ALPHA3, 25-40 A Q [m³/h] Q [m³/h] Fig. 40 ALPHA2 and ALPHA3, 25-40 A Setting AUTO 3-18 0.04 - 0.18 ADAPT Min. 0.04 Max. 0.18... -
Page 29: Performance Curves, Alpha2 And Alpha3, 25-60 A
11.7 Performance curves, ALPHA2 and ALPHA3, 25-60 A Q [m³/h] Q [m³/h] Fig. 41 ALPHA2 and ALPHA3, 25-60 A Setting AUTO 3-34 0.04 - 0.32 ADAPT Min. 0.04 Max. 0.32... -
Page 30: Performance Curves, Alpha2 And Alpha3, Xx-80 (N)
11.8 Performance curves, ALPHA2 and ALPHA3, XX-80 (N) Q [m³/h] Q [m³/h] Fig. 42 ALPHA2 and ALPHA3, 25-60 A Setting AUTO 3-50 0.04 - 0.44 ADAPT Min. 0.04 Max. 0.44... -
Page 31: Accessories
12. Accessories 12.1 Unions and valve kits Product numbers, unions Union nut with internal Union nut with Ball valve with internal Ball valve with Union nut with soldering fitting threads external threads threads compression fitting ∅22 ∅28 ∅18 ∅22 ∅28 ∅42 1 1/4 1 1/4... -
Page 32: Alpha Plugs
Android or iOS-based mobile device via Bluetooth. The unit uses a small lithium battery. The unit is together with the Grundfos GO Balance app used for balancing heating system primarily in one- and two-family houses. The app guides you through a number of steps where information on installation and measurements from the pump is being collected. -
Page 33: Operating The Product
13.2 Operating the product 13.3 Setting by means of the control panel The user interface is designed with a single push button, one red and green LED and four yellow LEDs. Push button LEDs Fig. 46 User interface with one push button and five LEDs The user interface shows the following: •... -
Page 34: Fault Finding The Product
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 35: External Pwm Control Mode And Signals
When you use SIKON HE, you can replace the conventional 230 will stop to avoid overheating of the solar thermal system. V UPS SOLAR pump with a Grundfos ALPHA SOLAR pump without having to change the controller. The function of the Max. - Page 36 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...
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Page 37: Disposing Of The Product
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. The crossed-out wheelie bin symbol on a product means that it must be disposed of separately from household waste. - Page 39 GRUNDFOS Pumps (Hong Kong) Ltd. Turkey Norway BOMBAS GRUNDFOS DO BRASIL Unit 1, Ground floor GRUNDFOS POMPA San. ve Tic. Ltd. Sti. Av. Humberto de Alencar Castelo Branco, Siu Wai Industrial Centre GRUNDFOS Pumper A/S Gebze Organize Sanayi Bölgesi 29-33 Wing Hong Street &...
- Page 40 98092353 0719 ECM: 1264550 www.grundfos.com...