Electronic room thermostat for heating and heating/cooling with display
Model
TRA 410, 421
How energy efficiency is improved
Individual, optimised energy use through precise adherence to setpoints
Features
- Electronic room thermostat for 24 V or 230 V for heating or heating/cooling with display
- Easy to read LCD with backlight on TRA 421
- Silent-switching Triac output (24 V types)
- Easy to wire up
- NTC sensor
- Time programme and pilot clock output integrated in TRA 421
- Optimised time programme for comfort control and energy saving
- Input for lowering the room temperature (TRA 410)
- Input for heating/cooling changeover (TRA 421)
- Input for external temperature sensor
- Cooling lock function on versions for heating/cooling
- Integrated “NC” and “NO” changeover
- Modern design with ergonomic setpoint adjuster
- Restriction of temperature setting range
- Automatic frost protection facility at 5 °C and valve protection facility
Povezano
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