Siemens RDF, Application Manual, Page: 18 / 31

18
VAV – application overview
Application Type of control outputs
RDG…
Wall-mounted range
RDU…
Semi flush-mounted range
Single duct
Single duct (DC 0...10 V) for VAV-box RDG400... RDU340...
Single duct mod. (3-pos.) for VAV-box RDG400...
Single duct with el. heater
Single duct (DC 0...10 V) for VAV-box,
with el. heater (ON/OFF)
RDG400... RDU340...
Single duct (DC 0...10 V) for VAV-box,
with el. heater (mod. PWM or 3-pos.)
RDG400...
Single duct (3-pos.) for VAV-box, with el. heater (DC 0...10 V) RDG400...
Application description
– Control sequences for heating and/or cooling
– Modulating control output DC 0..10V or 3-pos for
VAV box/air flow controller
– Multifunctional inputs for keycard, contact,
external sensor, etc.
– Automatic or manual heating/cooling changeover
– Adjustable minimum and maximum limitation of
air flow signal (DC 0..10V)
– Modulating PI control
– Output signal inversion as an option