Grundfos ALPHA2 Installation And Operating Instructions Manual
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Summary of Contents for Grundfos ALPHA2
- Page 1 GRUNDFOS INSTRUCTIONS Grundfos ALPHA2 Installation and operating instructions...
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Page 2: Table Of Contents
12.1 Technical data without supervision. 12.2 Installation dimensions, Grundfos ALPHA2 XX-40, XX-50, XX-60, XX-80 12.3 Installation dimensions, Grundfos ALPHA2 25-40 A, 25-60 A Performance curves 13.1 Guide to performance curves 13.2 Curve conditions 13.3 Performance curves, ALPHA2 XX-40 (N) 13.4 Performance curves, ALPHA2 XX-50 (N) -
Page 3: Symbols Used In This Document
1. Symbols used in this document 1.1 Warning symbols used in the quick guide Warning Symbol Description If these safety instructions are Warning not observed, it may result in Do not use the pump for personal injury. flammable liquids, such as diesel oil and petrol. -
Page 4: General Information
Cold-water systems are defined as systems where the ambient In domestic hot-water systems, temperature is higher than the temperature of the pumped liquid. Grundfos ALPHA2 is the best choice for the following systems: the pump is permanently • underfloor heating systems connected to the mains water •... -
Page 5: Identification
Nameplate Pos. Description Fig. 4 Model type on nameplate Pump type The table below shows the ALPHA2 models with built-in functions Rated current [A]: and features. • Min.: Minimum current [A] • Max.: Maximum current [A] Model B Model C... -
Page 6: Mechanical Installation
Mounting the Grundfos ALPHA2 Arrows on the pump housing indicate the liquid flow direction through the pump. See fig. 5, pos. A. See section 12.2 Installation dimensions, Grundfos ALPHA2 XX-40, XX-50, XX-60, XX-80 12.3 Installation dimensions, Grundfos ALPHA2 25-40 A, 25-60 1. -
Page 7: Positioning In Air-Conditioning And Cold-Water Systems
Caution control panel. 4.7 Air-conditioning and cold-water systems Use the insulating shells for pumps in air-conditioning and cold-water systems as well. Polystyrene insulating shells can be ordered from Grundfos. See section Accessories. Fig. 9 Changing the control box position The control box can be turned in steps of 90 °. -
Page 8: Electrical Installation
5. Electrical installation Pull out the conductor guide plate and throw it away. Fig. 11 Electrical connection Warning The pump must be connected to earth The pump must be connected to Click the plug an external mains switch with a cover onto the minimum contact gap of 3 mm in power supply... -
Page 9: Disassembling The Plug
5.2 Disassembling the plug 5.3 First startup • The light in the control panel shows that the power supply has Step Action Illustration been switched on. See fig. 12. • Factory setting: AUTO ADAPT 1 x 230 V ± 10 % ∽ 50/60 Hz Loosen the cable gland and remove it from the plug. -
Page 10: Control Panel
6. Control panel 6.3 Light fields indicating the pump setting The pump has ten optional performance settings which can be 6.1 Elements on the control panel selected with the button. See fig. 13, pos. 5. The pump setting is indicated by nine light fields in the display. See fig. -
Page 11: Light Field Indicating The Status Of Automatic Night Setback
6.4 Light field indicating the status of automatic night setback Light in shows that automatic night setback is active. See fig. 13, pos. 3. See also section 6.5 Button for enabling or disabling of automatic night setback. 6.5 Button for enabling or disabling of automatic night setback The button enables/disables automatic night setback. -
Page 12: Setting The Pump
7. Setting the pump 7.2 Pump setting for one-pipe heating systems 7.1 Pump setting for two-pipe heating systems Fig. 17 Selection of pump setting for system type Factory setting: AUTO ADAPT Recommended and alternative pump settings according to fig. 17: Pump setting Heating system... -
Page 13: Pump Setting For Underfloor Heating Systems
7.3 Pump setting for underfloor heating systems 7.4 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 Factory setting: AUTO Factory setting: AUTO ADAPT ADAPT Recommended and alternative pump settings according to Recommended and alternative pump settings according to fig. -
Page 14: Pump Control
7.6 Pump control During operation, the pump head will be controlled according to the principle "proportional-pressure control" (PP) or "constant-pressure control" (CP). In these control modes, the pump performance and consequently the power consumption are adjusted according to the heat demand in the system. -
Page 15: Automatic Night Setback/Summer Mode
8. Automatic night setback/summer mode The pump automatically changes over to night setback when a flow-pipe temperature drop of more than 10 to 15 °C within 8.1 Use of automatic night setback approx. two hours is registered. The temperature drop must be at least 0.1 °C/min. -
Page 16: Setting Summer Mode
8.3 Setting summer mode 8.4 Purpose of bypass valve Summer mode is selectable from model C. In summer mode, the pump is stopped to save energy and only the electronics are running. To avoid lime and blocking of the BYPASS pump, the pump is started frequently for a short period. -
Page 17: Startup
In heating systems that often contain much air, we recommend the installation of pumps with pump housing with air separator, i.e. ALPHA2 XX-XX A. When the heating system has been filled with liquid, follow this Fig. 26 Venting the pump procedure: 1. -
Page 18: Pump Settings And Pump Performance
10. Pump settings and pump performance 10.1 Relation between pump setting and pump performance Figure shows the relation between pump setting and pump performance by means of curves. See also section 13. Performance curves. Fig. 28 Pump setting in relation to pump performance Setting Pump curve Function... -
Page 19: Fault Finding
11. Fault finding Warning Before starting fault finding, switch off the power supply. Make sure that the power supply cannot be accidentally switched on. Fault Control panel Cause Remedy 1. The pump does not Light off. a) One fuse in the installation is blown. Replace the fuse. run. -
Page 20: Technical Data And Installation Dimensions
ALPHA2 XX-60: EEI ≤ 0.17. Specific EEI values ALPHA2 XX-80: EEI ≤ 0.18 ALPHA2 XX-40 A: EEI ≤ 0.18. ALPHA2 XX-60 A: EEI ≤ 0.20. To avoid condensation in the control box and stator, the liquid temperature must always be higher than the ambient temperature. -
Page 21: Installation Dimensions, Grundfos Alpha2
12.2 Installation dimensions, Grundfos ALPHA2 XX-40, XX-50, XX-60, XX-80 Dimensional sketches and table of dimensions. Fig. 29 ALPHA2 XX-40, XX-50, XX-60 Dimensions Pump type ALPHA2 15-40 130 60.5 60.5 44.5 44.5 35.8 103.5 ALPHA2 15-50 130 60.5 60.5 44.5 44.5 35.8... -
Page 22: Installation Dimensions, Grundfos Alpha2 25-40 A, 25-60 A
12.3 Installation dimensions, Grundfos ALPHA2 25-40 A, 25-60 A Dimensional sketches and table of dimensions. Fig. 30 ALPHA2 25-40 A, 25-60 A Dimensions Pump type ALPHA2 25-40 A 180 63.5 1 1/2 ALPHA2 25-60 A 180 63.5 1 1/2... -
Page 23: Performance Curves
13. Performance curves 13.1 Guide to performance curves Each pump setting has its own performance curve (QH curve). However, AUTO covers a performance range. ADAPT A power curve (P1 curve) belongs to each QH curve. The power curve shows the pump power consumption (P1) in watt at a given QH curve. -
Page 24: Performance Curves, Alpha2 Xx-40 (N)
13.3 Performance curves, ALPHA2 XX-40 (N) 2.4 Q [m³/h] Q [m³/h] Fig. 32 ALPHA2 XX-40 Setting P1 [W] AUTO 4-18 0.04 - 0.18 ADAPT Min. 0.04 Max. 0.18... -
Page 25: Performance Curves, Alpha2 Xx-50 (N)
13.4 Performance curves, ALPHA2 XX-50 (N) 0.0 0.2 0.4 0.6 0.8 1.0 Q [m³/h] 0.0 0.2 0.4 0.6 0.8 1.0 Q [m³/h] Fig. 33 ALPHA2 XX-50 Setting P1 [W] AUTO 4-26 0.04 - 0.24 ADAPT Min. 0.04 Max. 0.24... -
Page 26: Performance Curves, Alpha2 Xx-60 (N)
13.5 Performance curves, ALPHA2 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]... -
Page 27: Performance Curves, Alpha2 25-40 A
13.6 Performance curves, ALPHA2 25-40 A Q [m³/h] Q [m³/h] Fig. 35 ALPHA2 25-40 A Setting P1 [W] AUTO 4-18 0.04 - 0.18 ADAPT Min. 0.04 Max. 0.18... -
Page 28: Performance Curves, Alpha2 25-60 A
13.7 Performance curves, ALPHA2 25-60 A Q [m³/h] Q [m³/h] Fig. 36 ALPHA2 25-60 A Setting P1 [W] AUTO 4-34 0.04 - 0.32 ADAPT Min. 0.04 Max. 0.32... -
Page 29: Performance Curves, Alpha2 Xx-80 (N)
13.8 Performance curves, ALPHA2 XX-80 (N) Fig. 37 ALPHA2 25-60 A Setting P1 [W] AUTO 4-50 0.04 - 0.44 ADAPT Min. 0.04 Max. 0.44... -
Page 30: Accessories
• ALPHA plugs. See fig. 40. Fig. 38 Fittings Pos. Description Pump type Dimension Product number 3/4" 529971 Fittings. ALPHA2 25-XX N 1" 559972 Material: brass. 1 1/4" 509971 3/4" 519805 Fittings including isolating valve. ALPHA2 25-XX N 1" 519806 Material: brass. -
Page 31: Insulating Shells
ALPHA plug, 90 ° bend, including 4 m cable All types 96884669 Grundfos offers a special cable with an active built-in NTC protection circuit which will reduce possible inrush currents. The cable is to be used in case of e.g poor quality of relay components which are sensitive to inrush current. - Page 32 My firma Grundfos prehlasujeme na svoju plnú zodpovednost' , ALPHA2, la care se referă această declaraţie, sunt în conformitate cu že výrobok Grundfos ALPHA2, na ktorý sa toto prehlásenie vzt' a huje, je v aceste Directive de Consiliu asupra armonizării legilor Statelor Membre súlade s ustanovením smernice Rady pre zblíženie právnych predpisov...
- Page 33 Standards used: EN 16297-1:2012 and EN 16297-2:2012 and EN 16297-3:2012. Bjerringbro, 1 September 2014 Jan Strandgaard 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 35 BH-71000 Sarajevo Turkey Siu Wai Industrial Centre Phone: +387 33 592 480 GRUNDFOS Pumper A/S GRUNDFOS POMPA San. ve Tic. Ltd. Sti. 29-33 Wing Hong Street & Telefax: +387 33 590 465 Strømsveien 344 Gebze Organize Sanayi Bölgesi 68 King Lam Street, Cheung Sha Wan www.ba.grundfos.com...
- Page 36 98092353 0115 ECM: 1141506 www.grundfos.com...
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Questions and answers
Доброго времени суток! Уменьшили температуру до 20. Через время температура снизилась на 0 И теперь повышается в ручном режиме. Как запустить насосы заново?
Поправка, не повышается в ручном режиме. Не можем разобраться как запустить заново. Требуется специалист
To restart the Grundfos ALPHA2 pump after reducing the temperature to 20 degrees, press any button on the pump. This will deactivate any standby or setback mode and return the pump to its previous mode and settings.
This answer is automatically generated