Parameters and catalogs
|Power supply||230 VAC|
|Measurement accuracy||0.7 ° C|
|Setting range||8 … 30 ° C|
Room thermostat for control of two-pipe fan-coil units. The RAB 21 thermostat features a manual heating / cooling switch and a 3- speed fan speed switch .
Room temperature control in heating or cooling systems. An example is use in commercial and residential buildings or in light industrial installations .
The RAB thermostat can be used in conjunction with zone valves , fans or valves with thermoelectric drives .
Heating – when the temperature drops below the set value, the heating output contact switches on.
Cooling – When the set value is exceeded, the cooling output contact closes.
Heating / cooling switching – if there is a requirement for automatic switching of heating / cooling modes , this can be done externally (eg by a thermostat).
Manually – one of three speeds is set via the switch. In this case, the fan runs continuously.
Automatically – the fan starts when the thermostat is switched on. In this case, the control must change the jumper on the thermostat circuit board before commissioning.