SIEMENS RAB21-DC Room thermostat, 2-pipe. fan-coil, 3-st. vent., 0-10V, ON/OFF valve, 24VDC

SIEMENS RAB21-DC Room thermostat, 2-pipe. fan-coil, 3-st. vent., 0 - 10 V, ON/OFF valve, 24VDC
Room thermostat for 2-pipe fan-coil with EC fan control (0 - 10 V) and ON/OFF valve (24 DC), 3-stage fan speed control, 24 V DC power supply. Automatic switching of heating/cooling modes, fan start only after heating the exchanger, protection of the exchanger against freezing.

Application:
RAB21.. thermostats are used for room temperature regulation in heating or cooling systems.
Typical uses: Commercial buildings, residential buildings, light industrial operations
The thermostat can be used to control the following devices: Zone valves, valves with thermoelectric drives, fans