For 2-pipe, 2-pipe with electric heater and 4-pipe fan coil units

  • Communication protocol Modbus RTU Server
  • Slim design with touch button and frameless backlit display
  • Fan output:
    • 1-speed and 3-speed fan (RDF400MB, RDF440MB)
    • DC 0...10 V fan (RDF440MB, RDF460MB)
  • Control output:
    • 2-wire or 3-wire On/Off valve actuator (RDF400MB, RDF460MB)
    • 3-position valve actuator (RDF400MB, RDF460MB)
    • DC valve actuator (RDF440MB)
  • 1 digital input for keycard, etc.
  • Operating modes: Comfort, Economy and Protection
  • Automatic or manual fan speed control
  • Commissioning via local HMI or bus
  • Mounting on recessed square 86 mm conduit box with 60.3 mm fixing centers
  • Operating voltage:
    • AC 100...230 V (RDF400MB, RDF460MB)
    • AC/DC 24 V (RDF440MB)