{"product_id":"bomba-circuladora-grundfos-alpha1-go","title":"Grundfos ALPHA1 GO circulator pump for heating and pump replacement","description":"\u003ch2\u003eHeating circulator pump that replaces your old pump without the hassle\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eGrundfos ALPHA1 GO\u003c\/strong\u003e is a high-efficiency circulator pump for heating and air-conditioning circuits. Grundfos designed it to \u003cstrong\u003ereplace integrated and standalone UPS circulators\u003c\/strong\u003e with help from the Grundfos GO app. Q-Tech builds it into your pre-assembled plant room or swaps it into your existing system with an Expert Technician.\u003c\/p\u003e\n\u003ch3\u003eSummary\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eElectronic circulator pump with built-in frequency converter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand and model\u003c\/th\u003e\n\u003ctd\u003eGrundfos ALPHA1 GO, 11 threaded models\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUse\u003c\/th\u003e\n\u003ctd\u003eDomestic and commercial heating, district heating and air conditioning\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaximum head\u003c\/th\u003e\n\u003ctd\u003e4, 6 or 8 m depending on the model\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower input (P1)\u003c\/th\u003e\n\u003ctd\u003eFrom 4 W; maximum 27, 45 or 60 W depending on the model\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible with\u003c\/th\u003e\n\u003ctd\u003eReplacing integrated and standalone UPS circulators with the Grundfos GO app\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower supply\u003c\/th\u003e\n\u003ctd\u003eSingle-phase 220 to 240 V, 50 or 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eQ-Tech installation\u003c\/th\u003e\n\u003ctd\u003ePre-assembled plant room from our workshop or \u003ca href=\"\/en-en\/products\/tecnico-experto-in-situ-horas\"\u003eon-site hourly Expert Technician\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eWhat is the Grundfos ALPHA1 GO?\u003c\/h3\u003e\n\u003cp\u003eThe Grundfos ALPHA1 GO is an electronic circulator pump from Grundfos for heating and air conditioning that runs \u003cstrong\u003efrom 4 W with EEI 0.20\u003c\/strong\u003e. It has a built-in frequency converter. It fits into the circuit pipework with a threaded connection.\u003c\/p\u003e\n\u003ch3\u003eGrundfos ALPHA1 GO features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGuided replacement: in the GO Replace function of the Grundfos GO app, you enter the old pump's details. The app gives the settings for the new one.\u003c\/li\u003e\n\u003cli\u003eSelf-venting and dry-running protection: the pump stops if it detects that it is running without water.\u003c\/li\u003e\n\u003cli\u003ePowerful start: according to Grundfos, the non-magnetic shaft and bearings reduce the risk of blockage from magnetite. If the pump does block, it restarts at maximum torque.\u003c\/li\u003e\n\u003cli\u003eTool-free lever connector, so the cable can be wired away from the pump.\u003c\/li\u003e\n\u003cli\u003eDisplay showing the power the pump is drawing at any moment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat problem does it solve?\u003c\/h3\u003e\n\u003cp\u003eWhen a boiler circulator fails, the hard part is choosing the right replacement and setting. A different thread or port-to-port length means altering the pipework. The wrong setting can leave rooms without heat or push up electricity use.\u003c\/p\u003e\n\u003cp\u003eThe Grundfos ALPHA1 GO cuts that risk in three ways: standard connection sizes, settings the app derives from the old pump, and a display that confirms power use after the swap.\u003c\/p\u003e\n\u003ch3\u003eTechnical data\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eGrundfos\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRange\u003c\/th\u003e\n\u003ctd\u003eALPHA1 GO (model A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVoltage\u003c\/th\u003e\n\u003ctd\u003e1 × 220 to 240 V, 50 or 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum power input (P1)\u003c\/th\u003e\n\u003ctd\u003e4 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEnergy efficiency index (EEI)\u003c\/th\u003e\n\u003ctd\u003e0.20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEnclosure class\u003c\/th\u003e\n\u003ctd\u003eIP44\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInsulation class\u003c\/th\u003e\n\u003ctd\u003eF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLiquid temperature\u003c\/th\u003e\n\u003ctd\u003e−10 to 110 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAmbient temperature\u003c\/th\u003e\n\u003ctd\u003e0 to 55 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaximum operating pressure\u003c\/th\u003e\n\u003ctd\u003e10 bar (PN 10)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSound pressure level\u003c\/th\u003e\n\u003ctd\u003eBelow 25 dB(A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump housing\u003c\/th\u003e\n\u003ctd\u003eCast iron EN-GJL-150\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eImpeller\u003c\/th\u003e\n\u003ctd\u003ePES composite with 30% glass fibre\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eConnection\u003c\/th\u003e\n\u003ctd\u003eG thread to ISO 228-1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThermal protection\u003c\/th\u003e\n\u003ctd\u003eElectronic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eApprovals\u003c\/th\u003e\n\u003ctd\u003eCE, VDE, EAC, SEPRO, AAA and RCM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eModels and data by variant\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003ePort to port\u003c\/td\u003e\n\u003ctd\u003eMax. head\u003c\/td\u003e\n\u003ctd\u003eMax. P1\u003c\/td\u003e\n\u003ctd\u003eReference\u003c\/td\u003e\n\u003ctd\u003eEAN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e15-40 130\u003c\/th\u003e\n\u003ctd\u003eG 1\u003c\/td\u003e\n\u003ctd\u003e130 mm\u003c\/td\u003e\n\u003ctd\u003e4 m\u003c\/td\u003e\n\u003ctd\u003e27 W\u003c\/td\u003e\n\u003ctd\u003e93074188\u003c\/td\u003e\n\u003ctd\u003e5715467404159\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e15-60 130\u003c\/th\u003e\n\u003ctd\u003eG 1\u003c\/td\u003e\n\u003ctd\u003e130 mm\u003c\/td\u003e\n\u003ctd\u003e6 m\u003c\/td\u003e\n\u003ctd\u003e45 W\u003c\/td\u003e\n\u003ctd\u003e93074173\u003c\/td\u003e\n\u003ctd\u003e5715467403992\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e15-80 130\u003c\/th\u003e\n\u003ctd\u003eG 1\u003c\/td\u003e\n\u003ctd\u003e130 mm\u003c\/td\u003e\n\u003ctd\u003e8 m\u003c\/td\u003e\n\u003ctd\u003e60 W\u003c\/td\u003e\n\u003ctd\u003e93074182\u003c\/td\u003e\n\u003ctd\u003e5715467404081\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e25-40 130\u003c\/th\u003e\n\u003ctd\u003eG 1½\u003c\/td\u003e\n\u003ctd\u003e130 mm\u003c\/td\u003e\n\u003ctd\u003e4 m\u003c\/td\u003e\n\u003ctd\u003e27 W\u003c\/td\u003e\n\u003ctd\u003e93074186\u003c\/td\u003e\n\u003ctd\u003e5715467404135\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e25-40 180\u003c\/th\u003e\n\u003ctd\u003eG 1½\u003c\/td\u003e\n\u003ctd\u003e180 mm\u003c\/td\u003e\n\u003ctd\u003e4 m\u003c\/td\u003e\n\u003ctd\u003e27 W\u003c\/td\u003e\n\u003ctd\u003e93074185\u003c\/td\u003e\n\u003ctd\u003e5715467404128\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e25-60 130\u003c\/th\u003e\n\u003ctd\u003eG 1½\u003c\/td\u003e\n\u003ctd\u003e130 mm\u003c\/td\u003e\n\u003ctd\u003e6 m\u003c\/td\u003e\n\u003ctd\u003e45 W\u003c\/td\u003e\n\u003ctd\u003e93074171\u003c\/td\u003e\n\u003ctd\u003e5715467403978\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e25-60 180\u003c\/th\u003e\n\u003ctd\u003eG 1½\u003c\/td\u003e\n\u003ctd\u003e180 mm\u003c\/td\u003e\n\u003ctd\u003e6 m\u003c\/td\u003e\n\u003ctd\u003e45 W\u003c\/td\u003e\n\u003ctd\u003e93074169\u003c\/td\u003e\n\u003ctd\u003e5715467403954\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e25-80 130\u003c\/th\u003e\n\u003ctd\u003eG 1½\u003c\/td\u003e\n\u003ctd\u003e130 mm\u003c\/td\u003e\n\u003ctd\u003e8 m\u003c\/td\u003e\n\u003ctd\u003e60 W\u003c\/td\u003e\n\u003ctd\u003e93074180\u003c\/td\u003e\n\u003ctd\u003e5715467404067\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e25-80 180\u003c\/th\u003e\n\u003ctd\u003eG 1½\u003c\/td\u003e\n\u003ctd\u003e180 mm\u003c\/td\u003e\n\u003ctd\u003e8 m\u003c\/td\u003e\n\u003ctd\u003e60 W\u003c\/td\u003e\n\u003ctd\u003e93074179\u003c\/td\u003e\n\u003ctd\u003e5715467404050\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e32-60 180\u003c\/th\u003e\n\u003ctd\u003eG 2\u003c\/td\u003e\n\u003ctd\u003e180 mm\u003c\/td\u003e\n\u003ctd\u003e6 m\u003c\/td\u003e\n\u003ctd\u003e45 W\u003c\/td\u003e\n\u003ctd\u003e93074167\u003c\/td\u003e\n\u003ctd\u003e5715467403930\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e32-80 180\u003c\/th\u003e\n\u003ctd\u003eG 2\u003c\/td\u003e\n\u003ctd\u003e180 mm\u003c\/td\u003e\n\u003ctd\u003e8 m\u003c\/td\u003e\n\u003ctd\u003e60 W\u003c\/td\u003e\n\u003ctd\u003e93074178\u003c\/td\u003e\n\u003ctd\u003e5715467404043\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eCompatibility and limits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHeating and air-conditioning circuits in homes, commercial buildings and district heating.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eG 1, G 1½ or G 2\u003c\/strong\u003e thread on the 15, 25 and 32 models: check the unions and port-to-port length of your current pump.\u003c\/li\u003e\n\u003cli\u003eLiquid from −10 to 110 °C with ambient up to 55 °C; Grundfos allows 70 °C ambient with the liquid at 75 °C maximum.\u003c\/li\u003e\n\u003cli\u003eMaximum pressure 10 bar and enclosure class IP44.\u003c\/li\u003e\n\u003cli\u003eSettings are made on the pump itself: the Grundfos GO app tells you which ones, but the Grundfos ALPHA1 GO does not connect to it over Bluetooth.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen this product is not the right choice\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDomestic hot water recirculation: Grundfos specifies the Grundfos ALPHA1 GO for heating and air conditioning, and its housing is cast iron. For DHW see the \u003ca href=\"\/en-en\/products\/bomba-circuladora-sencilla-comfort-pm\"\u003eGrundfos COMFORT PM\u003c\/a\u003e or the \u003ca href=\"\/en-en\/products\/bomba-circuladora-sencilla-up-n-grundfos-1\"\u003eGrundfos UP-N\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003eIf you want to set up the pump from your phone over Bluetooth with AUTOADAPT control: see the \u003ca href=\"\/en-en\/products\/bomba-circuladora-grundfos-alpha2-go\"\u003eGrundfos ALPHA2 GO\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003eIf you need assisted hydronic balancing of the system: see the \u003ca href=\"\/en-en\/products\/bomba-circuladora-alpha3-grundfos-bluetooth-go-balance\"\u003eGrundfos ALPHA3\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003eSystems that need more than 8 m of head: see the \u003ca href=\"\/en-en\/products\/bomba-circuladora-magna1\"\u003eGrundfos MAGNA1\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhich model do I need?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe one that matches your current pump on three figures. The first number is the thread: 15 is G 1, 25 is G 1½ and 32 is G 2. The second is the maximum head in decimetres and the third, the port-to-port length in millimetres.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it replace the built-in pump in my boiler?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, Grundfos designed it to replace integrated UPS circulators, with step-by-step instructions in the app. Before ordering, send us your boiler model and a photo of the current pump's nameplate on \u003ca href=\"https:\/\/wa.me\/qtechhouses\" target=\"_blank\" rel=\"noopener\"\u003eWhatsApp\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does it differ from the Grundfos ALPHA2 GO?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe ALPHA2 GO has Bluetooth and AUTOADAPT control and is set up from your phone. On the Grundfos ALPHA1 GO the app gives the settings and you set them on the pump itself.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it suitable for domestic hot water?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThat is not the use Grundfos specifies: the Grundfos ALPHA1 GO is designed for heating and air conditioning. For DHW, look at the COMFORT PM and UP-N ranges.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the delivery time?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMade to order:\u003c\/strong\u003e we confirm the lead time before preparing your order.\u003c\/p\u003e\n\u003ch3\u003eQ-Tech installation and support\u003c\/h3\u003e\n\u003cp\u003eFor new builds, the Grundfos ALPHA1 GO can arrive already fitted in a \u003cstrong\u003epre-assembled plant room, ready to connect\u003c\/strong\u003e. Q-Tech assembles, sets up and tests the plant room in its workshop, with safety and operation tests. Final connection is done by the site installer or Q-Tech, from one working day depending on the type and size of the room. See how it works on \u003ca href=\"\/en-en\/pages\/pre-montaje-avanzado\"\u003eAdvanced Pre-Assembly\u003c\/a\u003e and the \u003ca href=\"\/en-en\/products\/tecnico-experto-pre-montaje-nave\"\u003eworkshop pre-assembly service\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eFor systems installed by another company or pump swaps, the first step is a verification visit by the \u003ca href=\"\/en-en\/products\/tecnico-experto-in-situ-horas\"\u003eon-site hourly Expert Technician\u003c\/a\u003e. Outside the province of Málaga it is booked as an \u003ca href=\"\/en-en\/products\/tecnico-experto-instalacion\"\u003eon-site working day\u003c\/a\u003e. To choose a model, book a \u003ca href=\"\/en-en\/products\/expert-technician-remote-technical-call\"\u003eremote technical call\u003c\/a\u003e, message us on \u003ca href=\"https:\/\/wa.me\/qtechhouses\" target=\"_blank\" rel=\"noopener\"\u003eWhatsApp\u003c\/a\u003e, or browse more \u003ca href=\"\/en-en\/collections\/bombas-recirculadoras\"\u003ecirculator pumps\u003c\/a\u003e and our \u003ca href=\"\/en-en\/pages\/contacto\"\u003econtact page\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eDocumentation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/product-selection.grundfos.com\/es\/products\/alpha\/alpha1-go\" target=\"_blank\" rel=\"noopener\"\u003eGrundfos ALPHA1 GO on Grundfos Product Center (in Spanish)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/product-selection.grundfos.com\/content\/dam\/global\/page-assets\/products-and-services\/alpha-go-range\/documents\/spain\/DBS-ALPHAGO-Leaflet-ALPHA1GO-2pager-2025-BGE.pdf\" target=\"_blank\" rel=\"noopener\"\u003eGrundfos ALPHA1 GO leaflet 2025 (PDF, in Spanish)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/api.grundfos.com\/literature\/Grundfosliterature-6911598.pdf\" target=\"_blank\" rel=\"noopener\"\u003eGrundfos ALPHA1 GO data booklet (PDF, in German)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Grundfos","offers":[{"title":"15-40 130","offer_id":58901082898776,"sku":"BA-139912","price":260.43,"currency_code":"EUR","in_stock":true},{"title":"15-60 130","offer_id":58901082931544,"sku":"SAL-0150101201","price":274.14,"currency_code":"EUR","in_stock":true},{"title":"15-80 130","offer_id":58901082964312,"sku":"SE-AC33802","price":340.96,"currency_code":"EUR","in_stock":true},{"title":"25-40 130","offer_id":58901082997080,"sku":"BA-139914","price":238.16,"currency_code":"EUR","in_stock":true},{"title":"25-40 180","offer_id":58901083029848,"sku":"BA-139915","price":238.16,"currency_code":"EUR","in_stock":true},{"title":"25-60 130","offer_id":58901083062616,"sku":"SE-AC33807","price":238.16,"currency_code":"EUR","in_stock":true},{"title":"25-60 180","offer_id":58901083095384,"sku":"SE-AC33808","price":238.16,"currency_code":"EUR","in_stock":true},{"title":"25-80 130","offer_id":58901083128152,"sku":"SE-AC33809","price":289.56,"currency_code":"EUR","in_stock":true},{"title":"25-80 180","offer_id":58901083160920,"sku":"SE-AC33810","price":289.56,"currency_code":"EUR","in_stock":true},{"title":"32-60 180","offer_id":58901083193688,"sku":"BA-139917","price":289.56,"currency_code":"EUR","in_stock":true},{"title":"32-80 180","offer_id":58901083226456,"sku":"SE-AC33813","price":325.54,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0015\/4592\/8792\/files\/grundfos-alpha1-go-15-130-frontal.webp?v=1792667416","url":"https:\/\/q-tech.es\/en-en\/products\/grundfos-alpha1-go-circulator-pump","provider":"Q-Tech ® ","version":"1.0","type":"link"}