Product Description
Siemens RAB21, S55770-T227
Electromechanical room thermostat for 2-pipe fan coils, basic model
- Heating or cooling applications
- Selector for manual 3-speed fan operation
- Changeover function, heating or cooling (with external automatic aquastat)
- Manual fan operation or automatic fan operation parallel with cooling / heating mode can be configured inside the unit
Datasheet