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
Caracteristicas
-
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
