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SIERWF55.50A9, Siemens Combustion,
Item #: SIERWF55.50A9
Manufacturer: Siemens Combustion
Supplier #: RWF55.50A9
Universal controller with 3-position and analog output, Modbus interface, setpoint changeover, setpoint shifting, outdoor air reset, limit comparator, 120/230V, thermal shock protection