Table of Contents
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Table of Contents
Related Manuals for Grundfos ALPHA1 L Series
Summary of Contents for Grundfos ALPHA1 L Series
- Page 1 GRUNDFOS INSTRUCTIONS ALPHA1 L Installation and operating instructions...
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Page 2: Table Of Contents
English (GB) Installation and operating instructions 1. General information Original installation and operating instructions These installation and operating instructions describe Grundfos This appliance can be used by children aged from 8 ALPHA1 L.accepted years and above and persons with reduced physical,... -
Page 3: Receiving The Product
2. Receiving the product 2.1 Inspecting the product Check that the product received is in accordance with the order. Check that the voltage and frequency of the product match voltage and frequency of the installation site. See section 6.4.1 Nameplate. 2.2 Scope of delivery The box contains the following items: •... -
Page 4: Control Box Positions
3.3 Control box positions 3.4 Insulating the pump housing The control box can be mounted in all positions. See fig. 5. Fig. 5 Possible control box positions 3.3.1 Changing the control box position Step Action Illustration Fig. 6 Insulating the pump housing Make sure that the inlet and You can reduce the heat loss from the pump and pipe by... -
Page 5: Assembling The Installer Plug
4.1 Assembling the installer plug Step Action Illustration Step Action Illustration Loosen the cable gland and Refit the terminal unscrew the union cover. See A. nut in the centre Note: It is possible of the terminal to turn the power cover. -
Page 6: Starting Up The Product
5. Starting up the product 5.3 Venting the 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 section 10. -
Page 7: Venting The Pump
5.4 Venting the pump 6. Product introduction 6.1 Product description ALPHA1 L model C is a complete range of circulator pumps. = 10 min. Max. 1.0 MPa (10 bar) Min. 2 °C 0 °C Max . 95 °C 55 °C 75 °C 95 °C 0.005 MPa... -
Page 8: Pumped Liquids
- In domestic hot-water systems, the temperature of <XXW L.avg. the pumped liquid must always be above 50 °C due to the risk of legionella. WARNING Grundfos Holding A/S, DK-8850 Bjerringbro Made in XXXXXXX Biological hazard Denm ar k Death or serious personal injury - In domestic hot-water systems, the pump is permanently connected to the mains water. -
Page 9: Control Functions
6.4.2 Type key 7.2 Control panel The control panel shows the following: Example ALPHA1 L 25 -40 • the settings, after pressing the button Pump type • operating status Nominal diameter (DN) of inlet and outlet • alarm status. ports [mm] 7.2.1 Operating status Maximum head [dm] During operation, the control panel shows the actual operating... -
Page 10: Control Modes
7.4 Control modes Recommended and alternative pump settings according to fig. 7.4.1 Radiator heating mode The radiator heating mode adjusts both flow and pressure to the Pump setting actual heat demand. The pump performance follows the selected System type Recommended Alternative performance curve. - Page 11 7.4.6 Pump setting for domestic hot-water systems 7.4.9 Setting up the PWM input signal Recommended and alternative pump settings: To enable the external control mode (PWM profile A), you need a signal cable connected to an external system. The cable can be Pump setting supplied with the circulator as an accessory.
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Page 12: Pump Performance
7.5 Pump performance 7.5.1 Relation between pump setting and pump performance Figure shows the relation between pump setting and pump performance by means of curves. Fig. 18 Pump setting in relation to pump performance Setting Pump curve Function The pump runs at a constant speed and consequently on a constant curve. Constant curve or constant At speed I, the pump is set to run on the minimum curve under all operating conditions. -
Page 13: Setting The Product
8. Setting the product Every time you press the push-button, the pump setting is changed. A cycle is five button presses. To select fixed proportional curve, press and hold the push button for 3 seconds. The pump automatically enables the PWM input-signal control mode when the signal cable is plugged in. -
Page 14: Fault Finding The Product
<160 V Replace the pump and send the pump to the Electrical error. nearest Grundfos 230 V Service Center. Fig. 19 Fault finding table 9.1 Deblocking the shaft If the pump is blocked it is necessary to deblock the shaft. The ALPHA1 L deblocking device is accessible from the front of the circulator without having to demount the control box. -
Page 15: Technical Data
10. Technical data Operating conditions Sound pressure level The sound pressure level of the pump is lower than 43 dB(A) Relative humidity Maximum 95 %, non-condensing environment System pressure PN 10: Maximum 1.0 MPa (10 bar) Liquid temperature Minimum inlet pressure Inlet pressure 75 °C 0.005 MPa, 0.05 bar, 0.5 m head... -
Page 16: Dimensions, Alpha1 L
10.1 Dimensions, ALPHA1 L XX-40, XX-60, XX-65 Dimensional sketches and table of dimensions. Fig. 21 ALPHA1 L XX-40, XX-60, XX-65 Dimensions [mm] Pump type ALPHA1 L 15-40 88.3 71.6 45.9 46.6 25.1 102.1 127.2 ALPHA1 L 15-60 88.3 71.6 45.9 46.6 25.1 102.1... -
Page 17: Guide To Performance Curves
10.2 Guide to performance curves Each pump setting has its own performance curve. See fig. 22. Fig. 22 Performance curves in relation to pump setting Settling Pump curve Constant curve or constant speed I Constant curve or constant speed II Constant curve or constant speed III Proportional-pressure curve Constant-pressure curve... -
Page 18: Performance Curves, Alpha1 L Xx-40 (N)
10.4 Performance curves, ALPHA1 L XX-40 (N) Fig. 23 ALPHA1 L XX-40 Setting Min. 0.05 Max. 0.26... -
Page 19: Performance Curves, Alpha1 L Xx-60 (N)
10.5 Performance curves, ALPHA1 L XX-60 (N) Fig. 24 ALPHA1 L XX-60 Setting Min. 0.05 Max. 0.42... -
Page 20: Performance Curves, Alpha1 L Xx-65 (N)
10.6 Performance curves, ALPHA1 L XX-65 (N) Fig. 25 ALPHA1 L XX-65 Setting Min. 0.05 Max. 0.52... -
Page 21: Accessories
11. Accessories 11.1 Unions and valve kits Product numbers, unions ∅22 ∅28 ∅15 ∅18 ∅22 ∅28 ∅42 1 1/4 1 1/4 1 1/4 25-xx 529921 529922 529821 529925 529924 G 1 1/2 25-xx N 529971 529972 519805 519806 519807 519808 519809 529977 529978 529979... -
Page 22: Power Supply
This product 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. See also end-of-life information on www.grundfos.com. - Page 23 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 24 99253352 0917 ECM: 1216089 www.grundfos.com...