Grundfos ALPHA2 Installation And Operating Instructions Manual
Variable-speed circulators with autoadapt
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Summary of Contents for Grundfos ALPHA2
- Page 1 GRUNDFOS INSTRUCTIONS ALPHA2 Variable-speed circulators with Auto ™ ADAPT Installation and operating instructions Listed Conforms to ANSI/UL Std. 778 Certified to CAN/CSA Std. C22.2 No. 108 3191277...
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Page 2: Table Of Contents
Installation and operation These installation and operating instructions must comply with local regulations describe Grundfos ALPHA2. and accepted codes of good practice. Sections 1-5 give the information necessary to be able to unpack, install and start up the This appliance can be used by product in a safe way. -
Page 3: General Information
2. General information his obligations under this paragraph. The seller's liability for breach of these warranties (or for breach of any other warranties found by a 2.1 Symbols used in this document competent court to have been given by the seller) shall be limited to: (a) accepting return of DANGER such equipment exw plant of manufacture, and... -
Page 4: Receiving The Product
The pumped liquid may be scalding 3.2 Scope of delivery hot and under high pressure. The box contains the following items: DANGER • one Grundfos ALPHA2 pump • one insulation shell Electric shock • one line cord or terminal box Death or serious personal injury. -
Page 5: Quick Installation Tips
ADAPT mode. 5. You may change hydraulic selection while pumping. No permanent damage will occur. In fact, Grundfos encourages testing the various hydraulic modes with your hydronic system to ensure maximum energy savings and comfort level. 6. With zone panel control applications, when... -
Page 6: Changing The Power Head Position
4.3 Changing the power head position Power head CAUTION orientation A Hot surface Minor or moderate personal injury. - Position the pump so that persons cannot accidentally come into Power head contact with hot surfaces. orientation B DANGER Electric shock Death or serious personal injury. -
Page 7: Insulating The Pump Housing
See figures and 6. • Insulating shells are supplied with ALPHA2 cast iron flanged versions. See fig. 6. • For pumps in air-conditioning and cooling systems (down to +14 °F (-10 °C)), it is... -
Page 8: Electrical Connection
4.5 Electrical connection 4.5.1 For pump models with line cord Follow the procedure as shown in fig. 7. DANGER How to insert the line cord plug onto the pump (side view): Electric shock Death or serious personal injury. - All electrical work must be carried out by a qualified electrician in accordance with the latest edition of the National Electric Code and... - Page 9 4.5.2 For pump models with terminal box 1. Loosen the terminal box screw from the terminal box cover. 2. Utilize either conduit port for the wiring entrance. 3. Wirethe plug connector as illustrated in the section Wiring procedure below, steps 3a- 3d.
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Page 10: Starting Up The Product
Death or serious personal injury. - This pump has not been investigated for use in swimming pool or marine areas. The ALPHA2 circulator pump is designed for the circulation of water in heating systems, domestic hot-water systems as well as air-conditioning and cold-water systems. -
Page 11: Pumped Liquids
• Cooling liquids, not containing mineral oil. • Domestic hot water Maximum: 14 °dH Maximum: 149 °F (65 °C) Maximum peak: 158 °F (70 °C). For water with a higher degree of hardness, contact Grundfos. • Softened water. -
Page 12: Identification
7.2 Type key found to comply with the limits for a class B digital device, pursuant to Part Example ALPHA2 15 -55 - 165 15 of the FCC Rules. Pump type These limits are designed to provide reasonable protection against harmful interference in a Nominal diameter (DN) of inlet residential installation. -
Page 13: Control Functions
8. Control functions 8.2.1 Light fields indicating the pump setting The pump has optional performance settings 8.1 Elements on the control panel which you can select with the push-button. See fig. 9. The pump setting is indicated by light fields in the display. -
Page 14: Pump Control
8.5 Pump control Manual summer mode In manual summer mode, the pump is stopped See section 8.6 Pump performance and to save energy and only the electronics are operating mode selection. running. To avoid lime deposit that could block AUTO , underfloor heating and two-pipe the pump, the pump is started every 24 hours for ADAPT... -
Page 15: Pump Performance And Operating Mode Selection
8.6 Pump performance and operating mode selection The hydraulic performance shown is without check valve. AUTO ADAPT Operating range (maximum to minimum) Pos. Description • Push-button for selection of pump setting • Every time you press the push-button, the circulator setting is changed. High constant speed •... -
Page 16: Fault Finding The Product
9. Fault finding the product DANGER WARNING Electric shock Pressurized system Death or serious personal injury. Death or serious personal injury. - Switch off the power supply before - Before dismantling the pump, drain starting any work on the product. the system or close the isolating Make sure that the power supply valve on either side of the pump... - Page 17 Fault Control panel Remedy Insufficient Light field is on. The pump Increase the pump speed or heat performance is set constant pressure. too low. The thermostat is set Check to see if the circulator is in too low or is not the proper operating mode.
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Page 18: Technical Data
10. Technical data In domestic hot water systems, keep the liquid temperature below 149 °F 10.1 Operating conditions (65 °C) to eliminate the risk of lime precipitation. Supply voltage 1 x 115 V, + 10 %/- 10 %, 60 Hz. Glycol Maximum glycol concentrations with clean Motor protection... -
Page 19: Disposing Of The Product
11. Disposing of the product 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. - Page 21 GRUNDFOS Kansas City GRUNDFOS Canada GRUNDFOS México 17100 West 118th Terrace 2941 Brighton Road Boulevard TLC No. 15 Olathe, Kansas 66061 Oakville, Ontario L6H 6C9 Canada Parque Industrial Stiva Aeropuerto Phone: (913) 227-3400 Phone: +1-905 829 9533 C.P. 66600 Apodaca, N.L. México...
- Page 22 99187617 0318 ECM: 1229470 www.grundfos.com...