{"product_id":"nibe-air-velocity-sensor-519579","title":"Nibe Air Velocity Sensor - 519579","description":"\u003cp\u003e\u003cspan\u003eThe \u003cstrong\u003eNIBE Air Velocity Sensor – Part No. 519579\u003c\/strong\u003e is the \u003cstrong\u003eofficial airflow\/air‑speed sensor\u003c\/strong\u003e used in several NIBE exhaust‑air heat pump systems (F7x0 series).\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eWhat the NIBE Air Velocity Sensor \u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003eIt measures airflow speed in the exhaust duct and sends that data to the heat pump’s control system. The F730\/F750 use this sensor to regulate fan speed, ensure correct ventilation rates, and protect the compressor.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eFunctions include:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMonitoring \u003cstrong\u003eexhaust airflow\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eEnsuring correct \u003cstrong\u003eventilation balance\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDetecting \u003cstrong\u003eblockages or duct restrictions\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eProviding feedback for \u003cstrong\u003efan modulation\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eTriggering alarms if airflow is too low\/high\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eIt is a \u003cstrong\u003ecritical safety and efficiency component\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhere It Is Used:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe 519579 sensor is typically installed:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eIn the \u003cstrong\u003eexhaust air channel\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eUpstream of the heat pump’s heat exchanger\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eConnected to the low‑voltage sensor harness on the splice card\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible with:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eNIBE F730\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eNIBE F750\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSome F7x0 variants depending on region\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTypical Failure Symptoms:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIf this sensor fails, you may see:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eAirflow alarm\u003c\/strong\u003e or “Low ventilation” warnings\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eFan running at \u003cstrong\u003emaximum speed constantly\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHeat pump reducing output due to \u003cstrong\u003einsufficient airflow\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eIncorrect ventilation rates\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSystem shutting down during DHW production\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Nibe","offers":[{"title":"Default Title","offer_id":55535815819640,"sku":"vn173","price":260.12,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/0496\/7984\/files\/SAM_0232.jpg?v=1776716744","url":"https:\/\/varme-tec.com\/products\/nibe-air-velocity-sensor-519579","provider":"Varmetec Limited","version":"1.0","type":"link"}