{"product_id":"bomba-circuladora-grundfos-alpha2-go","title":"Grundfos ALPHA2 GO circulator pump with Bluetooth and AUTOADAPT","description":"\u003ch2\u003eHigh-efficiency circulator pump you set up from your phone via Bluetooth\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eGrundfos ALPHA2 GO\u003c\/strong\u003e is a high-efficiency circulator pump for heating and air-conditioning systems. It has built-in Bluetooth: with the Grundfos GO app, a setup wizard helps you choose the right control mode and setpoint. Available in six threaded models with a maximum head of 4 or 6 m.\u003c\/p\u003e\n\u003ch3\u003eSummary\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003eUse\u003c\/th\u003e\u003ctd\u003eRadiator or underfloor heating and air conditioning\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eSetup\u003c\/th\u003e\u003ctd\u003eGrundfos GO app via built-in Bluetooth\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eAutomatic control\u003c\/th\u003e\u003ctd\u003eAUTOADAPT for radiators and for underfloor heating\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eModels\u003c\/th\u003e\u003ctd\u003e25-40, 25-60, 32-40 and 32-60, with 130 or 180 mm port-to-port length\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003ePower input\u003c\/th\u003e\u003ctd\u003e3 to 21 W (-40 models) and 3 to 37 W (-60 models)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eEnergy efficiency index (EEI)\u003c\/th\u003e\u003ctd\u003e0.16 (-40 models) and 0.18 (-60 models)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eMaximum pressure\u003c\/th\u003e\u003ctd\u003e10 bar (PN 10)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003ePower supply\u003c\/th\u003e\u003ctd\u003eSingle-phase 220 to 240 V\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eQ-Tech installation\u003c\/th\u003e\u003ctd\u003e\u003ca href=\"\/en-en\/products\/tecnico-experto-in-situ-horas\"\u003eTécnico Experto on-site by the hour\u003c\/a\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eWhat is the Grundfos ALPHA2 GO?\u003c\/h3\u003e\n\u003cp\u003eThe Grundfos ALPHA2 GO is an electronic circulator pump that moves water around heating and cooling circuits. Grundfos specifies it for domestic heating, heating and air conditioning in commercial buildings, and district heating.\u003c\/p\u003e\n\u003cp\u003eThe pump display shows the current flow, head and power consumption. Through the Grundfos GO app you also get trend data, an event log with suggested fixes and software updates that add new functions.\u003c\/p\u003e\n\u003ch3\u003eWhat problem does it solve?\u003c\/h3\u003e\n\u003cp\u003eA circulator with the wrong setting can use more energy than needed or leave rooms underheated. On the ALPHA2 GO, the app wizard asks about your system and sets the control mode. The AUTOADAPT function adjusts the duty point on its own, with no manual setpoint selection.\u003c\/p\u003e\n\u003cp\u003eIt also helps with maintenance. With air detection enabled, the pump runs in pulses to push air towards the nearest air vent. Dry-running protection stops it from operating without water. The non-magnetic shaft and bearings reduce the risk of blockage from magnetite or limescale, and if it does block, the motor tries to start at maximum torque.\u003c\/p\u003e\n\u003ch3\u003eTechnical data\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003eBrand\u003c\/th\u003e\u003ctd\u003eGrundfos\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eRange\u003c\/th\u003e\u003ctd\u003eALPHA2 GO\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eType\u003c\/th\u003e\u003ctd\u003eElectronic circulator pump with built-in frequency converter\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eVoltage\u003c\/th\u003e\u003ctd\u003e1 × 220–240 V, 50 or 60 Hz\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eMinimum power input (P1)\u003c\/th\u003e\u003ctd\u003e3 W\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eEnclosure class\u003c\/th\u003e\u003ctd\u003eIP44\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eInsulation class\u003c\/th\u003e\u003ctd\u003eF\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eLiquid temperature\u003c\/th\u003e\u003ctd\u003e2 to 110 °C\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eAmbient temperature\u003c\/th\u003e\u003ctd\u003e0 to 55 °C\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eMaximum operating pressure\u003c\/th\u003e\u003ctd\u003e10 bar (PN 10)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003ePump housing\u003c\/th\u003e\u003ctd\u003eCast iron EN-GJL-150\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eConnection\u003c\/th\u003e\u003ctd\u003eG thread to ISO 228-1\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eApprovals\u003c\/th\u003e\u003ctd\u003eCE, VDE, EAC, SEPRO and AAA\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eThermal protection\u003c\/th\u003e\u003ctd\u003eElectronic\u003c\/td\u003e\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\u003cth\u003eModel\u003c\/th\u003e\u003ctd\u003eThread\u003c\/td\u003e\u003ctd\u003ePort to port\u003c\/td\u003e\u003ctd\u003eMax. head\u003c\/td\u003e\u003ctd\u003eMax. P1\u003c\/td\u003e\u003ctd\u003eProduct no.\u003c\/td\u003e\u003ctd\u003eEAN\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003e25-40 130\u003c\/th\u003e\u003ctd\u003eG 1½\u003c\/td\u003e\u003ctd\u003e130 mm\u003c\/td\u003e\u003ctd\u003e4 m\u003c\/td\u003e\u003ctd\u003e21 W\u003c\/td\u003e\u003ctd\u003e93074226\u003c\/td\u003e\u003ctd\u003e5715467404531\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003e25-40 180\u003c\/th\u003e\u003ctd\u003eG 1½\u003c\/td\u003e\u003ctd\u003e180 mm\u003c\/td\u003e\u003ctd\u003e4 m\u003c\/td\u003e\u003ctd\u003e21 W\u003c\/td\u003e\u003ctd\u003e93074225\u003c\/td\u003e\u003ctd\u003e5715467404524\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003e25-60 130\u003c\/th\u003e\u003ctd\u003eG 1½\u003c\/td\u003e\u003ctd\u003e130 mm\u003c\/td\u003e\u003ctd\u003e6 m\u003c\/td\u003e\u003ctd\u003e37 W\u003c\/td\u003e\u003ctd\u003e93074218\u003c\/td\u003e\u003ctd\u003e5715467404456\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003e25-60 180\u003c\/th\u003e\u003ctd\u003eG 1½\u003c\/td\u003e\u003ctd\u003e180 mm\u003c\/td\u003e\u003ctd\u003e6 m\u003c\/td\u003e\u003ctd\u003e37 W\u003c\/td\u003e\u003ctd\u003e93074216\u003c\/td\u003e\u003ctd\u003e5715467404432\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003e32-40 180\u003c\/th\u003e\u003ctd\u003eG 2\u003c\/td\u003e\u003ctd\u003e180 mm\u003c\/td\u003e\u003ctd\u003e4 m\u003c\/td\u003e\u003ctd\u003e21 W\u003c\/td\u003e\u003ctd\u003e93074222\u003c\/td\u003e\u003ctd\u003e5715467404494\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003e32-60 180\u003c\/th\u003e\u003ctd\u003eG 2\u003c\/td\u003e\u003ctd\u003e180 mm\u003c\/td\u003e\u003ctd\u003e6 m\u003c\/td\u003e\u003ctd\u003e37 W\u003c\/td\u003e\u003ctd\u003e93074214\u003c\/td\u003e\u003ctd\u003e5715467404418\u003c\/td\u003e\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 circuits with radiators or underfloor heating, and air-conditioning circuits.\u003c\/li\u003e\n\u003cli\u003eGrundfos GO app via Bluetooth for setup, air detection, trend data and event log.\u003c\/li\u003e\n\u003cli\u003eThe app lets you check compatibility with integrated and standalone circulators and replicate their curve.\u003c\/li\u003e\n\u003cli\u003eLiquid temperature 2 to 110 °C and maximum pressure 10 bar.\u003c\/li\u003e\n\u003cli\u003eEnclosure class IP44 and ambient temperature 0 to 55 °C.\u003c\/li\u003e\n\u003cli\u003eG 1½ thread on 25 models and G 2 on 32 models: check the unions on your system.\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 (DHW) recirculation: Grundfos specifies the ALPHA2 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\u003eSystems that need more than 6 m of head or a higher flow: see the \u003ca href=\"\/en-en\/products\/bomba-circuladora-magna1\"\u003eGrundfos MAGNA1\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003eIf you need assisted hydraulic 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\u003eIf you want a simple circulator without Bluetooth: see the \u003ca href=\"\/en-en\/products\/bomba-sustitucion-alpha1l-grundfos-calderas\"\u003eGrundfos ALPHA1 L\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\u003eCheck three things on your current pump: thread, port-to-port length and head. The 25 models have a G 1½ thread and the 32 models a G 2 thread. 130 or 180 is the port-to-port length in millimetres. 40 or 60 means 4 or 6 m of maximum head.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it suitable for underfloor heating?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The AUTOADAPT function is available for both radiators and underfloor heating, and sets the duty point without manual input.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I have to use the Grundfos GO app?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eGrundfos presents the app as a setup wizard and access to additional functions: air detection, trend data, event log and software updates. The pump display shows flow, head and power consumption.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it replace the integrated pump in my boiler?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eGrundfos states that the Grundfos GO app checks compatibility with integrated and standalone circulators and replicates their curve. Before ordering, send us the boiler model and a photo of your current pump's rating plate on WhatsApp.\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 ALPHA2 GO is designed for heating and air conditioning, and its housing is cast iron. For DHW, see the COMFORT PM and UP-N ranges.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the difference from the ALPHA2?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe ALPHA2 GO has built-in Bluetooth and is set up with the Grundfos GO app. You can compare it with the \u003ca href=\"\/en-en\/products\/bomba-circuladora-alpha2-grundfos-equilibrado-asistido\"\u003eGrundfos ALPHA2\u003c\/a\u003e in our shop.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the delivery time?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt is supplied to order from our distributor. We confirm the delivery time before dispatch.\u003c\/p\u003e\n\u003ch3\u003eQ-Tech installation and support\u003c\/h3\u003e\n\u003cp\u003eQ-Tech replaces and integrates circulators in plant rooms and heating circuits in Málaga. You can book a \u003ca href=\"\/en-en\/products\/tecnico-experto-in-situ-horas\"\u003eTécnico Experto on-site by the hour\u003c\/a\u003e or get advice through a \u003ca href=\"\/en-en\/products\/expert-technician-remote-technical-call\"\u003eTécnico Experto technical call\u003c\/a\u003e. To choose a model, message us on WhatsApp at +34 690 95 38 39.\u003c\/p\u003e\n\u003ch3\u003eDocumentation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/product-selection.grundfos.com\/ie\/products\/alpha\/alpha2-go\"\u003eGrundfos ALPHA2 GO in Grundfos Product Center\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/product-selection.grundfos.com\/ie\/products\/alpha\/alpha2-go?tab=documentation\"\u003eGrundfos technical documentation\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Grundfos","offers":[{"title":"15-75 130","offer_id":58683215216984,"sku":"SE-AC33827","price":489.7,"currency_code":"EUR","in_stock":true},{"title":"25-40 130","offer_id":58676044857688,"sku":"BA-139918","price":404.74,"currency_code":"EUR","in_stock":true},{"title":"25-40 180","offer_id":58676044890456,"sku":"BA-139919","price":404.74,"currency_code":"EUR","in_stock":true},{"title":"25-60 130","offer_id":58676044923224,"sku":"SE-AC33831\/BA-139920","price":411.82,"currency_code":"EUR","in_stock":true},{"title":"25-60 180","offer_id":58676044955992,"sku":"AC33832\/BA-139921","price":411.82,"currency_code":"EUR","in_stock":true},{"title":"25-75 180","offer_id":58683269611864,"sku":"AC33834","price":436.6,"currency_code":"EUR","in_stock":true},{"title":"32-40 180","offer_id":58676044988760,"sku":"BA-139922","price":424.8,"currency_code":"EUR","in_stock":true},{"title":"32-75 180","offer_id":58676045021528,"sku":"SE-AC33841","price":533.36,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0015\/4592\/8792\/files\/Gr-111376.webp?v=1791295540","url":"https:\/\/q-tech.es\/en-int\/products\/grundfos-alpha2-go-circulator-pump","provider":"Q-Tech ® ","version":"1.0","type":"link"}