Room Thermostat DANFOSS WT‑D 088U0622 230V – mechanical temperature controller

DANFOSS WT‑D 088U0622 230V is a mechanical room thermostat for direct on/off control of heating equipment at mains voltage. Designed for residential and light commercial environments, the WT‑D monitors ambient temperature and provides a simple setpoint adjustment to switch boilers, electric heaters or zone valves at 230 V. Its mechanical sensor and robust switching mechanism offer straightforward temperature regulation without the need for additional controllers or power supplies.

Advantages

The thermostat delivers reliable on/off control with a clear mechanical setpoint dial and a durable switching contact rated for mains operation. Installation is simplified by direct 230 V compatibility and straightforward wiring. The device’s compact design enables mounting in typical room locations; its mechanical operation ensures predictable behaviour and minimal electronic complexity, which can be preferred where long-term stability and easy servicing are required.

Suitable for

• Direct control of boilers and electric heaters at 230 V
• Switching zone valves and actuators in heating circuits
• Residential rooms, apartments and small commercial spaces
• Simple heating systems where a mains-powered mechanical thermostat is sufficient

Key specifications

• Supply voltage: 230 V AC
• Control type: mechanical on/off thermostat
• Temperature setpoint: adjustable by rotary dial
• Output: single-pole switching contact for direct load control
• Mounting: wall-mounted room thermostat form factor
• Application: ambient room temperature regulation for heating systems

How to use

Mount the thermostat on an interior wall away from direct sunlight, drafts and heat sources for accurate ambient temperature sensing. Connect the incoming 230 V supply and the controlled heating device according to the wiring diagram provided with the product, observing local electrical regulations and ensuring power is off during installation. Set the desired temperature using the mechanical dial; the thermostat will switch the connected heating device on or off as the room temperature crosses the setpoint.

Usage recommendations

For reliable operation, place the thermostat at typical room height and avoid mounting near doors, radiators or ventilation outlets. Verify that the switching capacity matches the controlled equipment; if in doubt, use the thermostat to control a relay or contactor for higher power loads. Periodically check wiring and mechanical operation during routine maintenance.