Thermostatic Radiator Valve Head DANFOSS Redia RA click with built-in sensor, MIN 16°

DANFOSS Redia RA click is a thermostatic radiator valve head with a built-in temperature sensor and a fixed minimum setting of 16°. It is designed to control radiator thermostatic valves and enable automatic regulation of room temperature in heating systems. The device fits on compatible radiator valve bodies using a click-fit mounting system and provides simple manual adjustment for setting the desired temperature level.

Advantages

The integrated sensor provides direct measurement of ambient temperature for responsive control without the need for a separate remote sensor. The defined minimum position at 16° prevents the valve from fully closing at low setpoints, protecting radiators against freezing and ensuring minimum background heating. Click-fit mounting simplifies installation and replacement, while the clear scale and tactile adjustment make temperature setting straightforward. Designed for use with standard thermostatic valve bodies, the head delivers stable hydraulic control and consistent room comfort.

Suitable for

• Residential radiator temperature control in living rooms, bedrooms and hallways
• Commercial and office radiators where compact, built-in sensing is preferred
• Retrofit projects requiring easy-to-install valve heads with a minimum safety setting
• Heating systems needing dependable automatic regulation and basic manual override

Key specifications

• Built-in ambient temperature sensor for direct room measurement
• Defined minimum temperature stop at 16° to maintain background heat
• Click-fit mounting for quick attachment to compatible valve bodies
• Manual adjustment with clear scale and tactile click positions
• Compatible with standard thermostatic radiator valve bodies used in residential and commercial systems

How to use

Attach the valve head to the thermostatic valve body using the click-fit mechanism until it locks in place. Rotate the control head to set the desired room temperature according to the scale; the built-in sensor will regulate the radiator by actuating the valve to maintain that temperature. The minimum stop at 16° prevents the head from closing the valve completely at low settings. For replacement, pull off the head from the valve body following the manufacturer’s removal instruction and fit the new head by aligning and clicking it into position.

Usage recommendations

For accurate temperature control, position the radiator valve head away from direct drafts, windows with frequent opening, or heat sources that could bias the built-in sensor. Periodically check that the head is securely clicked into the valve body and free of dust. Use the minimum 16° setting when a low but continuous background temperature is required to protect pipes and radiators from freezing.