{"product_id":"viessmann-vitotrol-100-e-modulation-control","title":"Viessmann Vitotrol 100-E Modulation Control","description":"\u003ch3\u003eViessmann Vitotrol 100-E Modulation Control\u003c\/h3\u003e\n\nThe Viessmann Vitotrol 100-E is a wireless, wall-mounted room load compensator designed to provide precise control over your heating system. Unlike a traditional on\/off thermostat, the Vitotrol 100-E communicates with compatible Viessmann boilers using the One Base communication protocol, allowing the boiler to modulate its output according to the heating demand in the room.\n\nThis means the boiler can adjust its output rather than simply switching on and off, helping to maintain a more consistent room temperature while supporting efficient operation. No outdoor temperature sensor is required for this type of modulation control.\n\n\u003ch3\u003eComfortable Heating with Smart Modulation\u003c\/h3\u003e\n\nThe Vitotrol 100-E can maintain your preferred room temperature using either a pre-programmed heating schedule or a fixed temperature setpoint. You can choose from up to three room temperature settings — Reduced, Normal and Comfort — making it easy to adapt the heating to different times of the day.\n\nA temporary override function also allows you to manually adjust the temperature without permanently changing your programmed schedule. The temporary setting remains active until the next scheduled change.\n\n\u003ch3\u003eTwo-Way Communication with the Boiler\u003c\/h3\u003e\n\nThe Vitotrol 100-E uses two-way communication with the compatible boiler, allowing the thermostat and boiler to exchange information. This enables the boiler to adjust its output to match the heating requirement rather than operating as a simple on\/off system.\n\nThe system can also display boiler fault information on the thermostat, making it easier to identify when the heating system requires attention.\n\n\u003ch3\u003eEasy Wireless Installation\u003c\/h3\u003e\n\nInstallation is designed to be straightforward because no additional receiver is required. The receiver is factory-fitted inside the compatible boiler, while the Vitotrol 100-E communicates wirelessly with it.\n\nThe thermostat is battery powered and requires 2 x 1.5V AA batteries, meaning no cables are needed between the room controller and boiler. Its encrypted 2.4GHz low-power radio connection provides secure wireless communication.\n\n\u003ch3\u003eHeating and Hot Water Control\u003c\/h3\u003e\n\nThe Vitotrol 100-E is designed to control one heating circuit and can also provide domestic hot water temperature regulation on compatible systems. Separate time programs can be set for heating and hot water, with daily and weekly scheduling available.\n\nThe maximum and minimum temperature setpoints can also be limited, while the One Base protocol can be used to limit the maximum boiler setpoint temperature.\n\n\u003ch3\u003eClear Illuminated Display\u003c\/h3\u003e\n\nThe illuminated display provides an easy-to-read view of the room temperature, time and current operating status. This makes it simple to check the heating system and adjust settings when required.\n\nAutomatic software updates are also supported, helping the controller remain up to date without requiring manual software installation.\n\n\u003ch3\u003eViCare App Compatibility\u003c\/h3\u003e\n\nThe Vitotrol 100-E can be paired with compatible Vitodens boilers using the ViGuide App and is fully compatible with the ViCare application. A ViCare repeater can also be used where additional signal range is required, helping improve wireless connectivity.\n\n\u003ch3\u003eCompatible Boiler Models\u003c\/h3\u003e\n\nThe Vitotrol 100-E is suitable for the latest Vitodens 100-W Combi\/System boilers with a 4-pipe installation, including models B1KF and B1HF, as well as the Vitodens 111-W B1LF.\n\nIt is also suitable for the latest Vitodens 050-W B0KA and B0HA models from October 2024, provided the boiler has a serial number beginning 722860********.\n\nIt is important to check compatibility before purchasing, as the Vitotrol 100-E has specific system requirements and is not suitable for every Viessmann boiler configuration.\n\n\u003ch3\u003eImportant Compatibility Information\u003c\/h3\u003e\n\nThe Vitotrol 100-E is designed for system boilers using a 4-pipe system configuration. It must not be used with S-plan or Y-plan systems.\n\nIt is not compatible with Vitodens 100-W Heat Only boilers and cannot be used alongside weather compensation operation. The controller is intended for systems where room load compensation and One Base boiler modulation are being used.\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eWireless wall-mounted room load compensator\u003c\/li\u003e \u003cli\u003eOne Base communication protocol\u003c\/li\u003e \u003cli\u003eModulates compatible boiler output for improved efficiency\u003c\/li\u003e \u003cli\u003eTwo-way communication between thermostat and boiler\u003c\/li\u003e \u003cli\u003eNo outdoor temperature sensor required\u003c\/li\u003e \u003cli\u003eNo additional receiver required\u003c\/li\u003e \u003cli\u003eFactory-fitted receiver in compatible boiler\u003c\/li\u003e \u003cli\u003eDesigned for one heating circuit\u003c\/li\u003e \u003cli\u003eDomestic hot water temperature regulation\u003c\/li\u003e \u003cli\u003eDaily and weekly heating programmes\u003c\/li\u003e \u003cli\u003eHeating and hot water time programmes\u003c\/li\u003e \u003cli\u003eReduced, Normal and Comfort room temperature setpoints\u003c\/li\u003e \u003cli\u003eTemporary temperature override function\u003c\/li\u003e \u003cli\u003eMaximum and minimum temperature setpoint limits\u003c\/li\u003e \u003cli\u003eMaximum boiler setpoint temperature can be limited via One Base\u003c\/li\u003e \u003cli\u003eBoiler fault indication on thermostat display\u003c\/li\u003e \u003cli\u003eIlluminated display showing room temperature, time and operating status\u003c\/li\u003e \u003cli\u003eEncrypted 2.4GHz low-power radio connection\u003c\/li\u003e \u003cli\u003eBattery powered with 2 x 1.5V AA batteries\u003c\/li\u003e \u003cli\u003eAutomatic software update capability\u003c\/li\u003e \u003cli\u003eCompatible with the ViCare application\u003c\/li\u003e \u003cli\u003eCan be paired with compatible Vitodens boilers using the ViGuide App\u003c\/li\u003e \u003cli\u003eViCare repeater compatible for extended wireless signal range\u003c\/li\u003e \u003cli\u003eSuitable for compatible 4-pipe system boiler installations\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e \u003ch4\u003eIs the Viessmann Vitotrol 100-E an on\/off thermostat?\u003c\/h4\u003e\n\nNo. The Vitotrol 100-E is not an on\/off room thermostat. It uses the One Base communication protocol to communicate with compatible Viessmann boilers and modulate the boiler's output according to the heating demand in the room. This allows the boiler to adjust its output rather than simply switching on and off.\n\n\u003ch4\u003eWhich Viessmann boilers are compatible with the Vitotrol 100-E?\u003c\/h4\u003e\n\nThe Vitotrol 100-E is suitable for the latest Vitodens 100-W Combi\/System models B1KF and B1HF with a 4-pipe installation, the Vitodens 111-W B1LF, and selected Vitodens 050-W B0KA\/B0HA boilers from October 2024 with serial numbers beginning 722860. Compatibility should always be checked against the exact boiler model and serial number.\n\n\u003ch4\u003eCan the Vitotrol 100-E be used with an S-plan or Y-plan heating system?\u003c\/h4\u003e\n\nNo. The Vitotrol 100-E is designed for compatible system boilers using a 4-pipe configuration and must not be used with S-plan or Y-plan systems. It is also not compatible with Vitodens 100-W Heat Only boilers or weather compensation operation.","brand":"Viessmann","offers":[{"title":"Default Title","offer_id":55210041180502,"sku":"182354","price":176.65,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0905\/4509\/4998\/files\/viessmann-vitotrol-100-e-modulation-control-8091067.jpg?v=1788771729","url":"https:\/\/jjbuildingmaterials.co.uk\/products\/viessmann-vitotrol-100-e-modulation-control","provider":"JJ Building Materials","version":"1.0","type":"link"}