The thermostat is designed for use with:
- Fan coil units with 1-/3-speed fan controlling (RDF400MB):
- 2-pipe system, 2-wire On/Off valve actuator
- 2-pipe system, 3-wire On/Off valve actuator
- 2-pipe system, 3-position valve actuator
- 2-pipe system with electric heater, 2-wire On/Off valve actuator
- 4-pipe system, 2-wire On/Off valve actuator
- Fan coil units with 1-/3-speed or DC 0...10 V fan controlling (RDF440MB):
- 2-pipe system, DC 0...10 V valve actuator
- 4-pipe system, DC 0...10 V valve actuator and 1-/3-speed fan only
- Fan coil units with DC 0...10 V fan controlling (RDF460MB):
- 2-pipe system, 2-wire On/Off valve actuator
- 2-pipe system, 3-wire On/Off valve actuator
- 2-pipe system, 3-position valve actuator
- 2-pipe system with electric heater, 2-wire On/Off valve actuator
- 4-pipe system, 2-wire On/Off valve actuator