RDF440BN Flush mount touch BACnet and Modbus room thermostat for 2-/4-pipe FCU with 3-speed fan outputs

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

• Selectable bus communication protocol: BACnet MS/TP or Modbus RTU server
• Slim design with touch button and frameless backlit display
• Fan output:
• • 1-speed and 3-speed fan (RDF400BN, RDF440BN)
  • DC 0...10 V fan (RDF440BN, RDF460BN)
• Control output:
• • 2-wire or 3-wire On/Off valve actuator (RDF400BN, RDF460BN)
  • 3-position valve actuator (RDF400BN, RDF460BN)
  • DC valve actuator (RDF440BN)
• 2 multifunctional inputs for keycard, external sensor, etc.
• Operating modes: Comfort, Economy and Protection
• Automatic or manual fan speed control
• Automatic or manual heating/cooling changeover
• Commissioning via local HMI, bus or Siemens smartphone app QuickConfig
• Mounting on recessed square 86 mm conduit box with 60.3 mm fixing centers
• Operating voltage:
• • AC 100...230 V (RDF400BN, RDF460BN)
  • AC/DC 24 V (RDF440BN)

• Fan coil units with 1-/3-speed or DC 0...10 V fan controlling (RDF440BN):
• • 2-pipe system, DC 0...10 V valve actuator
  • 4-pipe system, DC 0...10 V valve actuator and 1-/3-speed fan only

Technical Specification: