WAVIN Wavin Telestat NC 24 volt — room thermostat actuator 24 V

WAVIN Wavin Telestat NC 24 volt — room thermostat actuator 24 V is a 24 V normally-closed telestat designed for precise room temperature control and actuator-driven valve operation in residential and light-commercial heating systems. The device interfaces with low-voltage control circuits to provide on/off control of valves or heating elements, enabling automated regulation of radiators, underfloor heating zones, or other HVAC components that require a normally-closed actuator.

Advantages

The actuator’s normally-closed design ensures fail-safe operation by returning valves to the closed position when control power is lost. Designed for compatibility with standard 24 V control networks, it supports straightforward integration into existing thermostat and control systems. Compact construction and simple electrical connection reduce installation time, while robust internal mechanics deliver reliable, low-maintenance performance for temperature regulation tasks.

Suitable for

• Automated control of radiator or zone valves in residential heating systems
• Actuation of underfloor heating circuits in light-commercial or home installations
• Integration with 24 V low-voltage thermostats and central control panels
• Applications requiring a normally-closed actuator for fail-safe valve closure

Key specifications

• Supply voltage: 24 V (low-voltage control)
• Contact function: normally-closed actuator operation
• Control type: on/off actuation for valves or heating elements
• Intended use: room temperature control and heating zone actuation
• Mounting: compact form factor suitable for valve or manifold installation

How to use

Install the actuator onto the compatible valve or manifold following the manufacturer’s mechanical mounting instructions. Connect the device to a 24 V control output from a room thermostat or control panel, observing correct polarity and secure wiring. When the thermostat calls for heat, the actuator receives 24 V and changes state to open or close the valve according to its normally-closed configuration. Verify correct operation by cycling the control signal and inspecting valve movement and room temperature response.

Usage recommendations

Use the actuator with control equipment rated for 24 V circuits and ensure wiring is performed by a qualified installer. For reliable operation, confirm compatibility with the valve body and mounting adapter before installation, and perform functional tests after connection. Regular visual inspections and occasional operational checks are recommended as part of routine HVAC maintenance.