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