Grundfos ALPHA2 Series Installation And Operating Instructions Manual
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Table of Contents
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Summary of Contents for Grundfos ALPHA2 Series
- Page 1 GRUNDFOS INSTRUCTIONS ALPHA2 Installation and operating instructions...
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Page 2: Table Of Contents
1.1 Hazard statements Control box positions Insulating the pump housing The symbols and hazard statements below may appear in Electrical installation Grundfos installation and operating instructions, safety Assembling the plug instructions and service instructions. Starting up the product Before startup... -
Page 3: Notes
1.2 Notes 2. Receiving the product The symbols and notes below may appear in Grundfos 2.1 Inspecting the product installation and operating instructions, safety instructions and Check that the product received is in accordance with the order. service instructions. Check that the voltage and frequency of the product match voltage and frequency of the installation site. -
Page 4: Mechanical Installation
3.1 Mechanical installation 3.2 Pump positions 3.1.1 Mounting the product The arrows on the pump housing indicate the flow direction through the pump. See fig. (A). 1. Fit the two gaskets supplied with the pump when you mount the pump in the pipe. See fig. (B). -
Page 5: Insulating The Pump Housing
3.3.2 Positioning the control box in air-conditioning and 3.4 Insulating the pump housing cold-water systems Position the control box with the plug pointing downwards. See fig. 4. Fig. 6 Insulating the pump housing You can reduce the heat loss from the pump by insulating the pump housing with the insulating shells supplied with the pump. -
Page 6: Electrical Installation
3.5 Electrical installation Step Action Illustration WARNING Electric shock Death or serious personal injury - Switch off the power supply before starting any Bend the cable work on the product. Make sure that the power with the cable supply cannot be accidentally switched on. conductors pointing upwards. -
Page 7: Starting Up The Product
4. Starting up the product 4.3 Venting the pump WARNING Pressurised system Death or serious personal injury - Tighten the bolts before opening the isolating valves. The pumped liquid may be scalding hot and under high pressure. 4.1 Before startup Do not start the pump until the system has been filled with liquid and vented. -
Page 8: Product Introduction
5. Product introduction 5.1 Product description The pump is designed for circulating liquids in systems with variable flow rates where it is desirable to optimise the setting of the pump duty point to reduce energy costs. The table below shows the ALPHA2 models with built-in functions and features. -
Page 9: Identification
5.4 Identification 5.4.2 Nameplate 5.4.1 Model type These installation and operating instructions cover ALPHA2 model B, C, D and E. The model type is stated on the packaging and nameplate. See figs and 10. Min. Max. MADE IN DENMARK Fig. 11 Nameplate Pos. -
Page 10: Accessories
5.5 Accessories 5.5.1 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 11: Insulating Shells, Alpha2
The unit uses a CR2032 lithium battery. ALPHA2 XX-XX 130 98091786 The unit is together with the Grundfos GO Balance app used for ALPHA2 XX-XX 180 98091787 balancing heating systems primarily in one- and two-family houses. The app is available for both Android and iOS devices, and you can download it free of charge from Google Play and App Store. -
Page 12: Control Modes
6. Control modes 6.4 Constant curve/constant speed At constant-curve/constant-speed operation, the pump runs at a 6.1 AUTO ADAPT constant speed, independently of the actual flow rate demand in In AUTO mode, the pump is set to proportional-pressure the system. The pump performance follows the selected ADAPT control. -
Page 13: Pump Performance
6.7 Pump performance If the recommended pump setting does not give the desired distribution of heat in the rooms of the house, change the pump setting to the shown alternative. 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. -
Page 14: Setting The Product
7. Setting the product 7.3 Light fields indicating the pump setting If the pump impeller is rotated, for example when filling the pump WARNING with water, sufficient energy can be generated to light up the Hot surface display even if the power supply has been switched off. Death or serious personal injury The pump has ten performance settings which you can select - The pump housing may be hot due to the pumped... -
Page 15: Button For Enabling Or Disabling Of Automatic Night Setback
7.4 Button for enabling or disabling of automatic night 7.7 Setting manual summer mode setback Manual summer mode is available as from ALPHA2 model C. The button enables and disables automatic night setback. See In manual summer mode, the pump is stopped to save energy. To fig. -
Page 16: Using Alpha Reader
The ALPHA Reader provides safe readout of internal data from the pump to an Android or iOS-based device via Bluetooth. The unit is together with the Grundfos GO Balance app used for balancing heating systems primarily in one- and two-family houses. -
Page 17: Servicing The Product
8. Servicing the product 8.2 Dismantling the plug WARNING Step Action Illustration 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. Loosen the cable DANGER gland and remove it... -
Page 18: Fault Finding The Product
High-torque start is available as from ALPHA2 model D. WARNING Electric shock Death or serious personal injury - A damaged product must be repaired by Grundfos or a service workshop authorised by Grundfos. 9.2 Fault finding table Fault Operating panel... -
Page 19: Technical Data
10. Technical data Operating conditions Relative humidity Maximum 95 % RH System pressure Maximum 1.0 MPa, 10 bar, 102 m head Liquid temperature Minimum inlet pressure ≤ 75 °C 0.005 MPa, 0.05 bar, 0.5 m head Inlet pressure 90 °C 0.028 MPa, 0.28 bar, 2.8 m head 110 °C 0.108 MPa, 1.08 bar, 10.8 m head... -
Page 20: Dimensions, Alpha2
10.1 Dimensions, ALPHA2 XX-40, XX-50, XX-60, XX-80 Dimensional sketches and table of dimensions. Dimensions Pump type ALPHA2 15-40 130 ALPHA2 15-50 130 G 1* ALPHA2 15-60 130 G 1* ALPHA2 15-80 130 ALPHA2 25-40 130 G 1 1/2 ALPHA2 25-40 N 130 G 1 1/2 ALPHA2 25-50 130 G 1 1/2... -
Page 21: 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 22: Performance Curves, Alpha2 Xx-40 (N)
11.3 Performance curves, ALPHA2 XX-40 (N) Q [m³/h] Q [m³/h] Setting AUTO 3-18 0.04 - 0.18 ADAPT Min. 0.04 Max. 0.18... -
Page 23: Performance Curves, Alpha2 Xx-50 (N)
11.4 Performance curves, ALPHA2 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 Setting AUTO 3-26 0.04 - 0.24 ADAPT Min. 0.04 Max. 0.24... -
Page 24: Performance Curves, Alpha2 Xx-60 (N)
11.5 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] Setting AUTO... -
Page 25: Performance Curves, Alpha2 Xx-80 (N)
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. The crossed-out wheelie bin symbol on a product means that it must be disposed of separately from household waste. - Page 27 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 28 99462941 1119 ECM: 1275702 www.grundfos.com...
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