Tag: RDF660MB thermostat

Siemens RDF660MB Flush Mount Room Thermostat   Communications For 2-pipe, 2-pipe with electric heater and 4-pipe fan coil units AC 230 V operating voltage Large, backlit display On/off or 3-position control outputs Automatic or manual fan speed control ECM fan DC 0…10 V output Operating modes: Comfort, Economy and Protection Control depending on the room or…