Tag: Thermostat RDF660MB

Siemens RDF660MB Flush Mount Room Thermostat  Mounting Instructions Flush-mounted room thermostat with RS485 Modbus communications Mounting location Factory setting RDF660MB X1 3 = Window contact (DI) X2 1 = External temperature sensor (AI) RDF660MB/MM B1 9 = H/C changeover (DI) S1 3 = Window contact (DI) Wiring diagrams Dimensions (mm) Mounting Carefully read all wiring…