Siemens RDF300 Series, Basic Documentation

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Siemens RDF300… / RDF340... / RDF400… / RDF600… Basic Documentation CE1P3076.en
Smart Infrastructure 2020-02-21
2 Summary
2.1 Brief description
The devices support:
– 2-pipe, 2-pipe with electrical heater and 4-pipe fan coil units
– Compressors in DX-type equipment
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RDF300… / RDF400… / RDF600… :
AC 230 V operating voltage, on/off or 3-position control outputs
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RDF340
AC 24 V operating voltage, DC 0…10 V control outputs
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Output for 3-speed or 1-speed fan
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Two multifunctional inputs for keycard contact, external sensor, etc.
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Operating modes: Comfort, Economy and Protection
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Automatic or manual heating/cooling changeover
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Adjustable commissioning and control parameters
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Minimum and maximum setpoint limitation
Additional features
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Backlit LCD (RDF300.02, RDF300.02/VB, RDF400.01, RDF600, RDF600T)
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Infrared remote control receiver (RDF400.01, RDF600T)
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Auto Timer mode with 8 programmable timers (RDF400.01, RDF600T)
Type of mounting / suitable conduit boxes
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RDF600... for Round CEE box, with min 60 mm diameter, min 40 mm depth
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RDF3… / RDF400... for recessed square box with 60.3 mm fixing centers
2.2 Features
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Maintain room temperature via built-in temperature sensor or external room
temperature / return air temperature sensor
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Automatic or manual changeover between heating and cooling mode
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Select applications via DIP switches
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Select operating mode via the operating mode button on the controller
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Single or 3-speed fan control (automatic or manual)
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Display current room temperature or setpoint in °C and/or °F
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Minimum and maximum setpoint limitation
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Keypad lock (automatic and manual)
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Two multifunctional inputs, freely selectable for:
– Operating mode switchover contact (key card)
– Automatic heating/cooling changeover sensor
– External room temperature or return air temperature
– Dewpoint sensor
– Electrical heater enable
– Alarm input
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Advanced fan control function, i.e. fan kick, fan start, selectable fan operation
(enable, disable or depending on heating or cooling mode)
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Purge function together with 2-port valve in a 2-pipe changeover system
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Reminder to clean filters
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Floor heating temperature limit
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Reload factory settings for commissioning and control parameters
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Weekly time program: 8 programmable timers to switch over between Comfort
and Economy mode (RDF400.01 / RDF600T)