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Room thermostat for two-pipe fan coil. Manual switching of heating / cooling modes. More information
GLS delivery 3-4 working days. DHL express delivery 1-2 working days.
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Control | Control wheel |
Design | Wired |
External sensor | No |
Measurement accuracy | 1 °C |
Power | 230 VAC |
Programme | No |
Regulation | On/Off |
Setting range | 8...30 °C |
Weight | 0.14 kg |
Datasheet download
Download PDFRoom thermostat for controlling two-pipe fan-coil units. The thermostat RAB 21 is equipped with a manual heating/cooling switch and a 3-stage fan speed switch.
Room temperature control in heating or cooling systems. An example is the use in commercial and residential buildings or in light industrial plants.
The RAB thermostat can be used in combination with zone valves, fans or thermal valves.
Heating - if the room temperature falls below the selected setpoint, the thermostat’s heating contact will close.
Cooling - if the room temperature exceeds the selected setpoint, the thermostat’s cooling contact will close.
There are two ways to control the fan speed:
Manual - one of three speeds is set via the switch. In this case, the fan runs continuously.
Automatic - the fan starts when the thermostat is switched on. In this case, it is necessary to change the position of the jumpers on the thermostat printed circuit board before commissioning.
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