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12

6. Control panel

Contents:

6.1 Elements on the control panel
6.2 "POWER ON" indicator light
6.3 Light fields indicating the pump setting
6.4 Push-button for selection of pump setting

.

6.1 Elements on the control panel

Fig. 7

GRUNDFOS ALPHA2 L control panel

The control panel on the GRUNDFOS ALPHA2 L comprises:

6.2 "POWER ON" indicator light

The "POWER ON" indicator light, see fig.

, pos. 1, is on when the

electricity has been switched on.
When the "POWER ON" indicator light is on only, a fault preventing the
pump from operating properly (e.g. seizing-up) has occurred.
If a fault is indicated, correct the fault and reset the pump by switching the
electricity supply off and on.

T

M

04

25

26

39

1

2

Pos.

Description

1

"POWER ON" indicator light

2

Seven light fields indicating the pump setting

3

Push-button for selection of pump setting

1

2

3

ON

POWER

ALPHA2 L 25-40 180

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Содержание alpha2l

Страница 1: ...GRUNDFOS INSTRUCTIONS ALPHA2 L ALPHA2 2 2 LPHA2 LPHA2 L L AL AL ALPHA2 L www grundfos com GRUNDFOS ALPHA2 L Installation and operating instructions ...

Страница 2: ...Standard used EN 60335 2 51 2003 EMC Directive 2004 108 EC Standards used EN 55014 1 2006 and EN 55014 2 1997 Ecodesign Directive 2009 125 EC Circulators Commission Regulation Nos 641 2009 and 622 2012 Standards used EN 16297 1 2012 and EN 16297 2 2012 Bjerringbro 1st November 2012 Svend Aage Kaae Technical Director Grundfos Holding A S Poul Due Jensens Vej 7 8850 Bjerringbro Denmark Person author...

Страница 3: ...l connection 11 6 Control panel 12 7 Setting the pump 14 8 Systems with bypass valve between flow and return pipes 16 9 Start up 18 10 Pump settings and pump performance 20 11 Fault finding chart 22 12 Technical data and installation dimensions 23 13 Performance curves 27 14 Features 32 15 Accessories 33 16 Disposal 34 ...

Страница 4: ...ced physical sensory or mental capabilities must not use this product unless they are under supervision or have been instructed in the use of the product by a person responsible for their safety Children must not use or play with this product Warning If these safety instructions are not observed it may result in personal injury Caution If these safety instructions are not observed it may result in...

Страница 5: ...t mounted control panel See 6 Control panel and 14 Features 2 2 Advantages of installing a GRUNDFOS ALPHA2 L The installation of a GRUNDFOS ALPHA2 L means easy installation and start up GRUNDFOS ALPHA2 L is easy to install With the factory setting the pump can in most cases be started without making any settings high degree of comfort Minimum noise from valves etc low energy consumption Low energy...

Страница 6: ...ining solid particles fibres or mineral oil See fig 2 In heating systems the water should meet the requirements of accepted standards on water quality in heating systems e g the German standard VDI 2035 TM05 1923 4512 Max 1 0 MPa 10 bar 75 C Min 0 005 MPa 0 05 bar 90 C 110 C Min 0 028 MPa 0 28 bar Min 0 108 MPa 1 08 bar Max 95 RH IP 42 0 0 0 4 0 8 1 2 1 6 2 0 2 4 Q m h 0 2 4 6 m H 0 20 40 60 kPa p...

Страница 7: ...lative air humidity RH Maximum 95 See fig 2 3 5 Enclosure class IP42 See fig 2 3 6 Inlet pressure Minimum inlet pressure in relation to liquid temperature See fig 2 Liquid temperature Minimum inlet pressure MPa bar 75 C 0 005 0 05 90 C 0 028 0 28 110 C 0 108 1 08 ...

Страница 8: ...e pump housing indicate the liquid flow direction through the pump See 12 2 Installation dimensions GRUNDFOS ALPHA2 L XX 40 XX 45 XX 50 XX 60 1 Fit the two gaskets supplied when the pump is mounted in the pipe See fig 3 pos A 2 Install the pump with the motor shaft horizontal See fig 3 pos B TM05 1924 4512 2 PHA2 2 2 PHA2 PHA2 AL AL AL ALPHA2 L 2 2 PHA2 2 2 2 2 PHA2 PHA2 AL A AL AL ALPHA2 L A B ...

Страница 9: ... socket head screws holding the pump head with a tee key M4 2 Turn the pump head to the desired position 3 Insert and cross tighten the screws TM05 1925 4512 1 3 5 4 2 2 2 PHA2 PHA2 A A AL AL ALPHA2 L A Warning The pumped liquid may be scalding hot and under high pressure Drain the system or close the isolating valves on either side of the pump before the screws are removed Caution When the positi...

Страница 10: ...ing the pump housing and the pipe See fig 5 As an alternative polystyrene insulation shells can be ordered from Grundfos See 15 Accessories TM05 1926 4512 2 2 2 2 2 PHA2 PHA2 A AL AL A A A A A A A A ALPHA2 L Note Limit the heat loss from the pump housing and pipework Caution Do not insulate the control box or cover the control panel ...

Страница 11: ...he pump to the mains with the plug supplied with the pump as shown in fig 6 steps 1 to 8 Light in the control panel shows that the electricity supply has been switched on TM05 1927 4512 2 PHA2 2 2 PHA2 PHA2 AL AL AL ALPHA2 L 2 2 PHA2 2 2 2 2 PHA2 PHA2 AL A AL AL ALPHA2 L 1 Min ø5 mm Max ø10 mm 7 mm 12 mm 2 3 4 Max 1 5 mm2 7 mm 17 mm 0 1 Click 5 6 7 8 1 x 230V 50 Hz 10 6 Warning The pump must be co...

Страница 12: ...dicator light The POWER ON indicator light see fig 7 pos 1 is on when the electricity has been switched on When the POWER ON indicator light is on only a fault preventing the pump from operating properly e g seizing up has occurred If a fault is indicated correct the fault and reset the pump by switching the electricity supply off and on TM04 2526 3912 Pos Description 1 POWER ON indicator light 2 ...

Страница 13: ...on of pump setting Every time the push button is pressed see fig 7 pos 3 the pump setting is changed A cycle is seven button presses See 6 3 Light fields indicating the pump setting TM04 2527 2608 Button presses Light field Description 0 PP2 factory setting Highest proportional pressure curve 1 CP1 Lowest constant pressure curve 2 CP2 Highest constant pressure curve 3 III Constant speed speed III ...

Страница 14: ...lation to performance curves see 10 Pump settings and pump performance TM05 1921 4512 I II III POWER ON I II III POWER ON I II III POWER ON OK OK I II III POWER ON I II III POWER OWER O R ON I II III POWER ON OK OK I II III POWER ON I II III POWER ON I II III POWER ER ON OK OK 2 2 PHA2 PHA2 AL AL ALPHA2 L I II III POWER ON I II III POWER ON I II III POWER ON OK OK A B C D Pos System type Pump sett...

Страница 15: ...ontrol In this control mode the differential pressure across the pump is controlled according to the flow The proportional pressure curves are indicated by PP1 and PP2 in the Q H diagrams See 10 Pump settings and pump performance Constant pressure control In this control mode a constant differential pressure across the pump is maintained irrespective of the flow The constant pressure curves are in...

Страница 16: ...adiator valves are closed System elements bypass valve flowmeter pos A The minimum flow must be present when all valves are closed The pump setting depends on the type of bypass valve used i e manually operated or thermostatically controlled 8 2 Manually operated bypass valve Follow this procedure 1 Adjust the bypass valve with the pump in setting I speed I The minimum flow Qmin for the system mus...

Страница 17: ...etting I speed I The minimum flow Qmin for the system must always be observed Consult the manufacturer s instructions 2 When the bypass valve has been adjusted set the pump to the lowest or highest constant pressure curve Explanation to pump settings in relation to performance curves see 10 Pump settings and pump performance ...

Страница 18: ...mp is self venting It need not be vented before start up Air in the pump may cause noise This noise ceases after a few minutes running Quick venting of the pump can be obtained by setting the pump to speed III for a short period depending on system size and design When the pump has been vented i e when the noise has ceased set the pump according to the recommendations See 7 Setting the pump The sy...

Страница 19: ...A2 L XX XX A When the heating system has been filled with liquid follow this procedure 1 Open the air escape valve 2 Set the pump to speed III 3 Let the pump run for a short period depending on system size and design 4 When the system has been vented i e when the possible noise has ceased set the pump according to the recommendations See 7 Setting the pump Repeat the procedure if necessary TM05 19...

Страница 20: ... or down on the highest proportional pressure curve see fig 13 depending on the heating demand The head pressure is reduced at falling heating demand and increased at rising heating demand CP1 Lowest constant pressure curve The duty point of the pump will move out or in on the lowest constant pressure curve see fig 13 depending on the heating demand in the system The head pressure is kept constant...

Страница 21: ...eed II the pump is set to run on the medium curve under all operating conditions See fig 13 I Speed I ALPHA2 L runs at a constant speed and consequently on a constant curve In speed I the pump is set to run on the min curve under all operating conditions See fig 13 Setting Pump curve Function ...

Страница 22: ...hin the specified range b The pump is blocked Remove the impurities 2 Noise in the system POWER ON and the light field for pump setting are on a Air in the system Vent the system See 9 3 Venting of heating systems b The flow is too high Reduce the suction head See 10 Pump settings and pump performance 3 Noise in the pump POWER ON and the light field for pump setting are on a Air in the pump Let th...

Страница 23: ...nal motor protection Enclosure class IP42 Insulation class F Relative air humidity Maximum 95 System pressure Maximum 1 0 MPa 10 bar 102 m head Inlet pressure Liquid temperature Minimum inlet pressure 75 C 0 05 bar 0 005 MPa 0 5 m head 90 C 0 28 bar 0 028 MPa 2 8 m head 110 C 1 08 bar 0 108 MPa 10 8 m head EMC EN 61000 6 2 and EN 61000 6 3 Sound pressure level The sound pressure level of the pump ...

Страница 24: ...130 78 78 46 49 27 129 58 1 1 4 ALPHA2 L 25 50 130 130 78 78 46 49 27 129 58 1 1 2 ALPHA2 L 25 50 180 180 78 78 47 48 26 127 58 1 1 2 ALPHA2 L 32 50 180 180 78 78 47 48 26 127 58 2 ALPHA2 L 15 60 130 130 77 78 46 49 27 129 58 1 1 2 ALPHA2 L 15 60 130 130 78 78 46 49 27 129 58 1 ALPHA2 L 20 60 130 130 78 78 46 49 27 129 58 1 1 4 ALPHA2 L 25 60 130 130 78 78 46 49 27 129 58 1 1 2 ALPHA2 L 25 60 180 ...

Страница 25: ...0 DE 180 63 93 32 65 50 135 82 1 1 2 ALPHA2 L 32 40 180 DE 180 54 54 47 48 26 127 30 2 ALPHA2 L 15 60 130 DE 130 54 54 46 49 27 129 30 1 ALPHA2 L 20 60 130 DE 130 54 54 46 49 27 129 30 1 1 4 ALPHA2 L 25 60 130 DE 130 54 54 46 49 27 129 30 1 1 2 ALPHA2 L 25 60 180 DE 180 54 54 47 48 26 127 30 1 1 2 ALPHA2 L 25 60 A 180 DE 180 63 93 32 65 50 135 82 1 1 2 ALPHA2 L 32 60 180 DE 180 54 54 47 48 26 127 ...

Страница 26: ... 180 63 93 32 65 50 135 82 1 1 2 ALPHA2 L 32 40 180 AT CH 180 54 54 47 48 26 127 30 2 ALPHA2 L 15 60 130 AT CH 130 54 54 46 49 27 129 30 1 ALPHA2 L 20 60 130 AT CH 130 54 54 46 49 27 129 30 1 1 4 ALPHA2 L 25 60 130 AT CH 130 54 54 46 49 27 129 30 1 1 2 ALPHA2 L 25 60 180 AT CH 180 54 54 47 48 26 127 30 1 1 2 ALPHA2 L 25 60 A 180 AT CH 180 63 93 32 65 50 135 82 1 1 2 ALPHA2 L 32 60 180 AT CH 180 54...

Страница 27: ... Contents 13 1 Guide to performance curves 13 2 Curve conditions 13 3 Performance curves ALPHA2 L XX 40 13 4 Performance curves ALPHA2 L 20 45 N 150 13 5 Performance curves ALPHA2 L XX 50 13 6 Performance curves ALPHA2 L XX 60 ...

Страница 28: ...e curves in relation to pump setting For further information about pump settings see 6 3 Light fields indicating the pump setting 7 Setting the pump 10 Pump settings and pump performance TM04 2534 2608 AUTO ADAPT III II I PP1 PP2 CP1 CP2 Q P1 H Q III II I ON POWER Setting Pump curve PP1 Lowest proportional pressure curve PP2 factory setting Highest proportional pressure curve CP1 Lowest constant p...

Страница 29: ...a density of ρ 983 2 kg m3 and a liquid temperature of 60 C All curves show average values and should not be used as guarantee curves If a specific minimum performance is required individual measurements must be made The curves for speeds I II and III are marked The curves apply to a kinematic viscosity of υ 0 474 mm2 s 0 474 cSt ...

Страница 30: ... 1 6 1 8 2 0 2 2 Q m h 0 5 10 15 20 25 W P1 III II I 0 0 0 2 0 4 0 6 0 8 1 0 1 2 1 4 1 6 1 8 2 0 2 2 Q m h 0 1 2 3 4 m H 0 10 20 30 40 kPa p 0 0 0 1 0 2 0 3 0 4 0 5 0 6 Q l s III II I 0 0 0 2 0 4 0 6 0 8 1 0 1 2 1 4 1 6 1 8 2 0 2 2 Q m h 0 5 10 15 20 25 W P1 III II I TM05 2213 4611 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 Q m h 0 0 0 5 1 0 1 5 2 0 2 5 3 0 3 5 4 0 4 5 m H 0 10 20 30 ...

Страница 31: ...3 4 5 m H 0 10 20 30 40 50 kPa p 0 0 0 1 0 2 0 3 0 4 0 5 0 6 0 7 Q l s III II I 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 Q m h 0 5 10 15 20 25 30 35 W P1 III II I TM04 2108 2008 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 8Q m h 0 1 2 3 4 5 6 m H 0 10 20 30 40 50 60 kPa p 0 0 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 Q l s III II I 0 0 0 2 0 4 0 6 0 8 1 0 1 2 1 4 1 6 1 8 2 0 2 2...

Страница 32: ...gy efficiency index EEI 2 Product number 9 Full load current A Min Minimum current A Max Maximum current A 3 Serial number 10 Input power P1 W Min Minimum input power P1 W Max Maximum input power P1 W 4 Production code 1st and 2nd digits year 3rd and 4th digits week 11 Maximum system pressure MPa 5 Enclosure class 12 CE mark and approvals 6 Voltage V 13 Country of origin 7 Frequency Hz 14 Temperat...

Страница 33: ...alves insulation kits insulation shells plug TM05 1933 4512 15 XX 25 XX 32 XX 15 XX A 25 XX A 25 XX 25 XX A 20 XX N 3 4 1 3 4 529921 529922 529932 Product number 3 4 1 519805 519806 25 XX N 32 XX 1 1 1 4 509921 509922 3 4 1 529971 529972 505821 505822 595562 3 4 1 519805 519806 2 2 2 2 2 PHA2 PHA2 r A AL AL A A A A ALPHA2 L ...

Страница 34: ...t or parts of it must be disposed of in an 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 Subject to alterations ...

Страница 35: ...nda Shiagawa ku Tokyo 141 0022 Japan Phone 81 35 448 1391 Telefax 81 35 448 9619 Korea GRUNDFOS Pumps Korea Ltd 6th Floor Aju Building 679 5 Yeoksam dong Kangnam ku 135 916 Seoul Korea Phone 82 2 5317 600 Telefax 82 2 5633 725 Latvia SIA GRUNDFOS Pumps Latvia Deglava biznesa centrs Augusta Deglava ielā 60 LV 1035 Rīga Tālr 371 714 9640 7 149 641 Fakss 371 914 9646 Lithuania GRUNDFOS Pumps UAB Smol...

Страница 36: ...www grundfos com Being responsible is our foundation Thinking ahead makes it possible Innovation is the essence 95047490 1212 GB Repl 95047490 0908 ...

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