1. Introduction
This manual provides essential instructions for the installation, operation, and maintenance of your Vaillant ambiSENSE VR 50 Thermostatic Radiator Valve. Please read this manual thoroughly before use to ensure safe and efficient operation of the device and its integration into your heating system.
2. Product Overview
The Vaillant ambiSENSE VR 50 is a battery-operated thermostatic valve designed for precise single-room temperature control within a Vaillant ambiSENSE system. It is compatible with radiator valves featuring an M 30 x 1.5 connection.

3. Safety Information
- Always disconnect power to the heating system before attempting any installation or maintenance.
- Do not expose the device to extreme temperatures, direct sunlight, or excessive moisture.
- Keep the device and its components out of reach of children.
- Use only the specified battery type for replacement.
- Do not attempt to open or repair the device yourself. Contact qualified personnel for service.
4. Setup and Installation
The ambiSENSE VR 50 valve is designed for radiator valves with an M 30 x 1.5 connection. Adapters for Danfoss RA, RAV, and RAVL valves are included for broader compatibility. For full control and integration into your smart home system, the Vaillant Internet Module is required.
- Preparation: Ensure your radiator valve is compatible (M 30 x 1.5 thread) or identify the appropriate adapter from the included set.
- Battery Installation: Open the battery compartment and insert the required batteries, observing correct polarity. Close the compartment securely.
- Mounting: Remove your existing thermostatic head. Screw the Vaillant ambiSENSE VR 50 thermostatic valve onto the radiator valve. Hand-tighten only; do not overtighten. If using an adapter, attach it to the radiator valve first, then mount the ambiSENSE VR 50.
- System Integration: Follow the instructions provided with your Vaillant Internet Module to pair the ambiSENSE VR 50 valve with your Vaillant ambiSENSE single-room control system. This typically involves a pairing process initiated via the Vaillant application.
5. Operating Instructions
The Vaillant ambiSENSE VR 50 can be operated manually or via the Vaillant Internet Module and associated application.
- Manual Adjustment: The temperature can be adjusted directly on the device using the control button and the silver adjustment ring. The digital display will show the current temperature setting or mode.
- App Control: Once successfully paired with the Vaillant Internet Module, you can control and program the valve remotely through the Vaillant application. This allows for scheduled temperature changes, energy management, and advanced settings.
6. Maintenance
- Battery Replacement: When the battery indicator appears on the display, replace the batteries promptly to ensure continuous operation. Refer to the battery compartment for the correct battery type and replacement procedure.
- Cleaning: Clean the exterior of the device with a soft, dry cloth. Do not use abrasive cleaners, solvents, or wet cloths, as these can damage the device or its electronic components.
7. Troubleshooting
- Device Not Responding: Check the batteries and ensure they are correctly inserted and charged. If the issue persists, verify the device's pairing status with the Vaillant Internet Module.
- Incorrect Temperature Reading: Ensure the valve is not obstructed by furniture or curtains, which can affect temperature sensing.
- Pairing Issues: Refer to the Vaillant Internet Module manual for specific troubleshooting steps related to device pairing and network connectivity. Ensure your Wi-Fi network is stable.
- For further assistance, consult the Vaillant support website or contact customer service.
8. Specifications
| Brand | Vaillant |
| Model | VR 50 |
| Product Dimensions | 11.2 x 12.2 x 9.7 cm |
| Weight | 366 g |
| Material | Plastic |
| Power Source | Battery Powered |
| Connectivity | Wi-Fi (via Vaillant Internet Module) |
| Compatibility | Radiator valves with M 30 x 1.5 connection |
| Included Components | Adapter for Danfoss RA, RAV, RAVL |
9. Warranty and Support
For detailed warranty information, technical support, and service inquiries, please refer to the documentation provided with your purchase or visit the official Vaillant website. Keep your proof of purchase for warranty claims.





