{"product_id":"control-de-suelo-radiante-vicare-viessmann-1","title":"Viessmann ViCare ZK03838 six-zone underfloor heating thermostat","description":"\u003ch2\u003eViCare underfloor heating thermostat to control up to 6 zones from your phone\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eViCare ZK03838 underfloor heating thermostat\u003c\/strong\u003e from Viessmann drives the actuators on your underfloor heating manifold and controls each zone from the ViCare app. Q-Tech wires it at the manifold, pairs it with the sensors and completes the \u003cstrong\u003econfiguration and pre-commissioning check\u003c\/strong\u003e through an Expert Technician.\u003c\/p\u003e\n\u003ch3\u003eSummary\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003eType\u003c\/th\u003e\u003ctd\u003eZone controller for underfloor heating with low-power radio\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eBrand and model\u003c\/th\u003e\u003ctd\u003eViessmann ViCare, reference ZK03838\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eUse\u003c\/th\u003e\u003ctd\u003eRoom-by-room temperature control for underfloor heating\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eZones\u003c\/th\u003e\u003ctd\u003eUp to 6 zones and 18 thermal actuators at 230 V\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eSensors\u003c\/th\u003e\u003ctd\u003eOne ViCare climate sensor per zone, sold separately\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eCompatible with\u003c\/th\u003e\u003ctd\u003eViessmann heat generators with One Base and built-in communication module (for boilers, Vitodens 200-W B2HF, B2KF, B2HG and B2KG) or the \u003ca href=\"\/en-en\/products\/termostato-vitoconnect-opto2-de-viessmann-zk03836-inalambrico\"\u003eVitoconnect OPTO2\u003c\/a\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003ePower supply\u003c\/th\u003e\u003ctd\u003e230 V, 50 Hz, 4 W\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\"\u003eOn-site hourly Expert Technician\u003c\/a\u003e: wiring, pairing and zone-by-zone test\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eWhat is the ViCare underfloor heating thermostat?\u003c\/h3\u003e\n\u003cp\u003eThe ViCare underfloor heating thermostat from Viessmann is a zone controller that drives up to 18 actuators according to each room's temperature. It receives that temperature by radio from the ViCare climate sensors. It mounts on the wall, next to the manifold.\u003c\/p\u003e\n\u003ch3\u003eWhat problem does it solve?\u003c\/h3\u003e\n\u003cp\u003eUnderfloor heating without zone control heats the living room and an empty bedroom alike. The ViCare thermostat opens and closes each circuit according to its sensor and schedule, with \u003cstrong\u003ezone control from the app\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eViessmann states that with ViCare thermostats on every emitter connected to the heat generator, \u003cstrong\u003ehydraulic balancing is automatic\u003c\/strong\u003e, with TÜV certification.\u003c\/p\u003e\n\u003ch3\u003eTechnical data\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003ePower supply\u003c\/th\u003e\u003ctd\u003e230 V, 50 Hz\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003ePower consumption\u003c\/th\u003e\u003ctd\u003e4 W\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eOutputs\u003c\/th\u003e\u003ctd\u003e6 outputs for thermoelectric valves, 230 V relay, 2 A continuous (max. 6 A)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eAdditional output\u003c\/th\u003e\u003ctd\u003e1 volt-free contact for pump or valve, max. 6 A\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eCompatible actuators\u003c\/th\u003e\u003ctd\u003e230 V thermal, normally closed\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eRadio\u003c\/th\u003e\u003ctd\u003e2.4 GHz, encrypted\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eRange\u003c\/th\u003e\u003ctd\u003eUp to 14 m through walls, depending on thickness and structure\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eDimensions (width × height × depth)\u003c\/th\u003e\u003ctd\u003e312 × 99 × 60 mm\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eProtection\u003c\/th\u003e\u003ctd\u003eIP22D, class II\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eOperating temperature\u003c\/th\u003e\u003ctd\u003e+5 to +50 °C\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eBox contents\u003c\/th\u003e\u003ctd\u003eThermostat, external antenna with 1.3 m cable, contact sensor with 1.8 m cable, 1.2 m cable with connector, tool and fixing kit\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eCompatibility and limits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNeeds a gateway: Viessmann heat generators with One Base and built-in communication module (for boilers, Vitodens 200-W B2HF, B2KF, B2HG and B2KG) or the \u003ca href=\"\/en-en\/products\/termostato-vitoconnect-opto2-de-viessmann-zk03836-inalambrico\"\u003eVitoconnect OPTO2\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOne climate sensor per zone\u003c\/strong\u003e: the \u003ca href=\"\/en-en\/products\/vicare-sensor-climatico-de-viessmann-zk03839\"\u003eViCare ZK03839 sensor\u003c\/a\u003e is sold separately.\u003c\/li\u003e\n\u003cli\u003e230 V thermal actuators, normally closed; Viessmann sells the 7750202 actuator.\u003c\/li\u003e\n\u003cli\u003eIncludes frost protection and an anti-scale function for the valves.\u003c\/li\u003e\n\u003cli\u003eThe 230 V connection must be done by a qualified professional.\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\u003eRadiator heating: room control is done by the \u003ca href=\"\/en-en\/products\/cabezal-termostatico-inteligente-vicare-de-viessmann-zk03840\"\u003eViCare radiator thermostat\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003eYou only need a room control for a Vitocal 150-A or 250-A heat pump: the \u003ca href=\"\/en-en\/products\/vitotrol-300-e\"\u003eVitotrol 300-E\u003c\/a\u003e or the \u003ca href=\"\/en-en\/products\/vitotrol-100-eh\"\u003eVitotrol 100-EH\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003eUnderfloor heating from another brand with its own control system: keeping that brand's control is advisable.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHow many sensors do I need?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOne per zone. With 6 zones, 6 ViCare climate sensors.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it work with my current actuators?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, if they are 230 V thermal actuators, normally closed. If you are not sure, send us a photo of the manifold on \u003ca href=\"https:\/\/wa.me\/qtechhouses\" target=\"_blank\" rel=\"noopener\"\u003eWhatsApp\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it work without a Viessmann boiler?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, with the \u003ca href=\"\/en-en\/products\/termostato-vitoconnect-opto2-de-viessmann-zk03836-inalambrico\"\u003eVitoconnect OPTO2\u003c\/a\u003e as the gateway, even with no heat generator connected.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I install it myself?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOnly if you are qualified to work on 230 V. Q-Tech wires it, pairs it and tests each zone with its hourly service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the delivery time?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt is in stock at our warehouse, as the note at the bottom explains.\u003c\/p\u003e\n\u003ch3\u003eQ-Tech installation and support\u003c\/h3\u003e\n\u003cp\u003eA Q-Tech Expert Technician carries out the \u003cstrong\u003einstallation and pre-commissioning check\u003c\/strong\u003e: mounts the thermostat next to the manifold, wires the actuators, pairs the sensors and leaves every zone working in ViCare. Book it with the \u003ca href=\"\/en-en\/products\/tecnico-experto-in-situ-horas\"\u003eon-site hourly Expert Technician\u003c\/a\u003e service; for prior questions, use the \u003ca href=\"\/en-en\/products\/expert-technician-remote-technical-call\"\u003eremote technical call\u003c\/a\u003e. See the other components in \u003ca href=\"\/en-en\/collections\/viessmann-vicare-expertos\"\u003eViessmann ViCare and Control\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eDocumentation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.viessmann.es\/es\/productos\/sistemas-de-control-y-conectividad\/vicare-app\/componentes.html\" target=\"_blank\" rel=\"noopener\"\u003eViCare Smart Climate components on viessmann.es (in Spanish)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"qt-nota-stock\"\u003e\u003cstrong\u003eAvailability and lead times:\u003c\/strong\u003e this item is in stock at our warehouse. Occasionally, depending on the time of year, the stock update may contain an error. If no units are available when you place your order, we will order it urgently and inform you immediately of the updated delivery time.\u003c\/p\u003e","brand":"Viessmann","offers":[{"title":"Default Title","offer_id":47439966732632,"sku":"VI-ZK03838","price":375.56,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0015\/4592\/8792\/files\/viessmann-vicare-termostato-suelo-radiante-zk03838-abierto-lateral.webp?v=1793172066","url":"https:\/\/q-tech.es\/en\/products\/control-de-suelo-radiante-vicare-viessmann-1","provider":"Q-Tech ® ","version":"1.0","type":"link"}