Mechanical installation ..... . 8 The symbols and hazard statements below may appear in Grundfos Mounting the product ......8 installation and operating instructions, safety instructions and Pump positions .
2. Product introduction 2.2 Pumped liquids CAUTION 2.1 Product description Flammable material The ALPHA SOLAR is designed to be integrated in all kinds of Minor or moderate personal injury thermal solar systems with either variable or constant flow rate. ‐ Do not use the pump for flammable liquids, such as High-efficiency ECM (Electronically Commutated Motor) pumps, diesel oil and petrol.
Check that the product is as ordered. P/N:XXXXXXXX PC:P1XXXX S/N:XXXXXXXX If the product is not as ordered, contact the supplier. Grundfos Holding A/S DK-8850 Bjerringbro Made in XXXXXXX Denmark Make sure that the supply voltage and frequency correspond to the values stated on the product nameplate.
5. Mechanical installation 5.2 Pump positions Always install the pump with a horizontal motor shaft. Do not install the pump with a vertical motor shaft. The mechanical installation must be carried out by trained persons in accordance with local regulations. •...
5.3.1 Changing the control box position 5.4 Insulation of the pump housing Make sure that the inlet and outlet valves are closed. Insulating the pump housing Unscrew the screws on the pump head. You can reduce the heat loss from the pump by insulating the pump housing with insulating shells, which can be ordered as an accessory.
PWM signal for the ALPHA SOLAR. When you use SIKON HE, you can replace the conventional 230 V UPS SOLAR pump with a Grundfos ALPHA SOLAR pump without having to change the controller. The function of the performance control of the pump is maintained.
7. Starting up the product 7.3 Venting the pump 7.1 Before startup • The system must be filled with liquid and vented before starting up the product. • Make sure that the required minimum inlet pressure is available at the pump inlet. •...
8. Control functions 8.2 Control modes 8.2.1 Constant curve or constant speed, I, II or III 8.1 Operating panel for ALPHA SOLAR At constant-curve operation, the pump runs at a constant curve. The pump performance follows the selected performance curve, I, II or III.
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8.3.1 PWM interface 8.3.3 PWM feedback signal The PWM interface consists of an electronic part connecting the The PWM feedback signal offers pump information like in bus external control signal to the pump. The interface translates the systems: external signal into a signal type that the microprocessor can •...
8.3.4 Control signal data levels 9. Setting of the product To set the product, use the button on the operating panel. Every Maximum rating Symbol Value time you press the button, the pump setting is changed. The LEDs will indicate the chosen control mode. See the table below. A cycle PWM frequency input with high- 100-4000 Hz is four button presses.
10. Service 10.2 Deblocking the shaft If the pump is blocked, it is necessary to deblock the shaft. The DANGER pump deblocking device is accessible from the front of the pump Electric shock without having to demount the control box. The force of the device Death or serious personal injury is high enough to deblock pumps, which are seized by lime, for ‐...
The pump stops. is sufficient voltage The supply voltage is supply to the pump. low. Replace the pump Alarm and send the pump The pump stops. to the nearest Grundfos Service Electrical error. Center. Related information 8.1.1 Alarm or warning 10.2 Deblocking the shaft...
12. Technical data Operating conditions The sound pressure level of the pump is lower Sound pressure level than 32 dB(A). Relative humidity Max. 95 % System pressure Max. 1.0 MPa (10 bar) Liquid temperature Pressure 75 °C 0.005 MPa (0.05 bar) Inlet pressure 95 °C 0.05 MPa (0.5 bar)
13. Accessories 13.1 Unions and valve kits The accessory is used to connect the pump to the pipes. The union nut must be fitted to the pump while the union tail is connected to the pipes. The accessory set includes everything you need for installation. Pump type Connection Ø18...
13.3 Cables and plugs The pump has two electrical connections: the power supply and the control signal connection. Power supply connection The installer plug is both supplied with the pump and available as an accessory. Power cable adapters are also available as accessories. Control signal connection The control signal cable connection has three conductors: the signal input, the signal output and the signal reference.
14. Performance curves 14.1 Guide to performance curves Each pump setting has its own performance curve. A power curve, P1, belongs to each performance curve. The power curve shows the pump power consumption in watt at a given performance curve. 14.2 Curve conditions The guidelines below apply to the performance curves: •...
This product or parts of it must be disposed of in an environmentally sound way. Use the public or private waste collection service. 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.
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Centre Turkey Tel.: +387 33 592 480 29-33 Wing Hong Street & 68 King Lam GRUNDFOS Pumper A/S GRUNDFOS POMPA San. ve Tic. Ltd. Sti. Fax: +387 33 590 465 Street, Cheung Sha Wan Strømsveien 344 Gebze Organize Sanayi Bölgesi www.ba.grundfos.com...
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