Siemens RDF300.02 Flush Mount Room Thermostat
RDF300 / RDF400 / RDF600/RDF600T:
AC 230 V operating voltage, on/off or 3-position control outputs
- RDF340…: AC 24 V, operating voltage, DC 0…10 V control outputs
- Output for a 3-speed or 1-speed fan
- 2 multifunctional inputs for keycard contact, external sensor, etc.
- Operating modes: Comfort, Economy and Protection
- Automatic or manual fan speed control
- Automatic or manual heating/cooling changeover
- Adjustable commissioning and control parameters
- Minimum and maximum setpoint limitation
- User and parameter settings can be retained or restored with power loss
Additional features
- Backlit LCD (RDF300.02, RDF300.02/VB, RDF400.01, RDF600, RDF600T)
- Infrared remote control receiver (RDF400.01, RDF600T)
- Auto Timer mode with 8 programmable timers (RDF400.01, RDF600T)
Type of mounting/suitable conduit boxes
- RDF600… for round CEE box, with min 60 mm diameter, min 40 mm depth
- RDF3… / RDF400… for recessed square box with 60.3 mm fixing centers
Use
Applications
To control the room temperature in individual rooms and zones that are:
- Heated or cooled with 2-pipe fan coil units
- Heated or cooled with 2-pipe fan coil units with an electrical heater
- Heated and cooled with 4-pipe fan coil units
- Heated or cooled with the compressor in DX-type equipment
- Heated or cooled with the compressor in DX-type equipment with an electrical heater
- Heated and cooled with the compressor in DX-type equipment
The RDF300… / RDF400… / RDF600… control:
- One 1- or 3-speed fan
- One or 2 on/off valve actuators
- One on/off valve actuator and one 1-stage electrical heater
- One 3-position valve actuator
- One 1-stage compressor in DX type equipment or one 1-stage compressor with an electrical heater
The RDF340… controls:
- One 1- or 3-speed fan
- One or 2 DC 0…10 V valve actuators
- One DC 0…10 V valve actuator and one modulating electrical heater (DC 0…10 V)
Used in systems with:
- Heating or cooling mode
- Automatic heating/cooling changeover
- Manual heating/cooling changeover
- Heating and cooling mode (e.g. 4-pipe system)
Functions
- Maintain room temperature via built-in temperature sensor or external room temperature / return air temperature sensor
- Automatic or manual changeover between heating and cooling mode
- Select applications via DIP switches
- Select operating mode via the operating mode button on the thermostat
- 1- or 3-speed fan control (automatic or manual)
- Display current room temperature or setpoint in °C and/or °F
- Minimum and maximum setpoint limitation
- Key lock (automatic and manual)
- 2 multifunctional inputs, freely selectable for:
- Operating mode switchover contact (key card)
- Automatic heating/cooling changeover sensor
- External room temperature or return air temperature sensor
- Dewpoint sensor
- Electrical heater enable
- Alarm input
- Advanced fan control function, i.e. fan kick, fan start, selectable fan operation (enable, disable or depending on heating or cooling mode)
- Purge function together with 2-port valve in a 2-pipe changeover system
- Reminder to clean filters
- Floor heating temperature limit
- Reload factory settings for commissioning and control parameters
- 7-day time program: 8 programmable timers to switch over between Comfort and Economy mode (RDF400.01 / RDF600T)
- Backlit LCD (RDF300.02 / RDF300.02/VB / RDF400.01 / RDF600 / RDF600T)
- Optional infrared remote control ( RDF400.01 / RDF600T)
Applications
The thermostat supports the following applications, which can be configured by DIP switches on the inner side of the thermostat’s front. Depending on the type, on/off or modulating control outputs are available.
Applications for fan coil systems
- V1: Heating or heating/cooling valve actuator
- V2: Cooling valve actuator
- E1: Electrical heater
- M1: 3-speed or single-speed fan
- B1: Return air temperature sensor or external room temperature sensor (optional)
- B2: Changeover sensor (optional)
Applications for Universal systems
- V1: Heating or heating/cooling valve actuator
- V2: Cooling valve actuator
- E1: Electrical heater
- B1: Return air temperature sensor or external room temperature sensor (optional)
- B2: Changeover sensor (optional)
- D3: Dewpoint sensor
Applications for heat pump systems
- N1: Thermostat
- Terminal Y10/Y11: Heating (H&C) or Heating/Cooling
- Terminal Y20/Y21: Cooling (H&C)
- E1: Electrical heater
- B1: Return air temperature sensor or external room temperature sensor (optional)
- D3: Dewpoint sensor
Type summary
| Product number | Stock number | Features | Color |
| Operating Voltage | Control outputs | Time program | Backlit LCD | Infrared receiver 1) | Suitable conduit box 2) |
| on/off | 3pt | DC 0..10 V |
| RDF300 | RDF300 | AC 230 V | ü | ü | | | | | square | White |
| RDF300.02 | RDF300.02 | AC 230 V | ü | ü | | | ü | | square | White |
| RDF300.02/VB | S55770-T427 | AC 230 V | ü | ü | | | ü | | square | Black |
| RDF400.01 | RDF400.01 | AC 230 V | ü | ü | | ü | ü | ü | square | White |
| RDF340 | RDF340 | AC 24 V | | | ü | | | | square | White |
| RDF600 | S55770-T291 | AC 230 V | ü | ü | | | ü | | round | White |
| RDF600T | S55770-T292 | AC 230 V | ü | ü | | ü | ü | ü | round | White |
- The infrared remote control is to be ordered as a separate item
- Square conduit box e.g. ARG71.
- Round conduit box min 60 mm diameter and min 40 mm depth
Ordering
- When ordering, indicate both product number / SSN number and name: E.g. RDF600 / S55770-T291 room thermostat
- Order the IRA211 (S55770-T166) infrared remote control separately (for RDF400../RDF600…).
- Order valve actuators separately.
Equipment combinations
On/off actuators
| Designation | Product no. | Data Sheet *) |
| Cable temperature sensor or changeover sensor, cable length 2.5 m NTC (3 kn at 25 °C) | QAH11.1 | 1840 |
| Room temperature sensor NTC (3 kn at 25 °C) | QAA32 | 1747 |
| Cable temperature sensor, cable length 4 m
NTC (3 kn at 25 °C) | QAP1030/UFH | 1854 |
| Condensation monitor | QXA21.. | A6V10741072 |
| Electromotor ON/OFF actuator | SFA21… | 4863 |
| Electromotor ON/OFF valve and actuator (only available in AP, UAE, SA and IN)
| MVI…/MXI… | A6V11251892 |
| Zone valve actuators (only available in AP, UAE, SA and IN) | SUA… | 4832 |
| Thermal actuator (for radiator valve) | STA23… | 4884 |
| Thermal actuator (for small valves 2.5 mm)
| STP23… | 4884 |
3-position actuators
| Designation | Product no. | Data Sheet *) |
| Electrical actuator, 3-position (for radiator valve) | SSA31… | 4893 |
| Electrical actuator, 3-position (for small valve 2.5 mm) | SSP31… | 4864 |
| Electrical actuator, 3-position (for small valve 5.5 mm) | SSB31… | 4891 |
| Electrical actuator, 3-position (for 2- and 3-port valves / V…P45) | SSC31… | 4895 |
| Electromotoric actuator, DC 0…10 V (for valves 5.5 mm) | SAS61.. | 4581 |
| Electromotoric actuator, DC 0…10 V (for valves 5.5 mm) | SAT61.. | 4584 |
| Electrical actuator, DC 0…10 V (for radiator valves) | SSA61.. | 4893 |
| Electrical actuator, DC 0…10 V (for 2- and 3-port valves/V…P45) | SSC61.. | 4895 |
| Electrical actuator, DC 0…10 V (for small valves 2.5 mm) | SSP61.. | 4864 |
| Electrical actuator, DC 0…10 V (for small valves 5.5 mm) | SSB61.. | 4891 |
| Electromotor actuator, DC 0…10 V (for valves 5.5 mm) | SAS61.. | 4581 |
| Electromotoric actuator, DC 0…10 V (for valves 5.5 mm) | SAT61.. | 4584 |
| Electrothermal actuator, AC 24 V, NC, DC 0…10 V, 1 m | STA63 | 4884 |
| Electrothermal actuator, AC 24 V, NO, DC 0…10 V, 1 m
| STP63 | 4884 |
*) The documents can be downloaded from http://siemens.com/bt/download.
Accessories
| Designation | Product no. | Data Sheet |
| Changeover mounting kit (50 pcs/package) | | ARG86.3 | N3009 |
| Plastic mounting spacer for flush-mounted thermostats RDF3.. RDF400… for increasing the headroom in the conduit box by 10 mm | | ARG70.3 | N3009 |
| Conduit box for flush-mounted thermostat RDF3.. RDF400… | | ARG71 / S55770-T137 | N3009 |
Mechanical design
The thermostat consists of 2 parts:
- Front panel accommodating the electronics, operating elements and built-in room temperature sensor.
- Mounting base with the power electronics.
The rear of the mounting base contains the screw terminals Slide the front panel in the mounting base and snap on.
Operation and settings
RDF300…/RDF340… RDF600
- Operating mode selector / Protection
- Change fan operation
- Adjust setpoint and control parameters
RDF400… RDF600T
- Change operating mode selector
- Change fan operation
- Adjust setpoint, control parameters and time of day
- Auto Timer program
- Protection
- Set time of day and weekday
- Confirm
- Infrared receiver
Display
- Operating mode
- Protection
- Auto Timer mode *
- Comfort
- Economy
- Display room temperature, setpoints and control parameters.
- A symbol used to display the current room temperature
- Heating/cooling mode
- Cooling mode
- Heating mode,
- Electrical heater active
- Fan mode
- Auto fan active
- Fan speed low, medium, high
- Additional user information (RDF3xx) or current time of day (RDF400 / RDF600T)
- Weekday 1..7 (1 = Monday/7 = Sunday)*
- Key lock active
- Condensation in room (dewpoint sensor active)
- Indicate fault or reminder
- only on RDF400… / RDF600T
Mounting and installation
Mount the room thermostat on the conduit box. Do not mount on a wall in niches or bookshelves, behind curtains, above or near heat sources, or exposed to direct solar radiation. Mount about 1.5 m above the floor.
Mounting/dismounting
- Devices must be mounted on clean, dry indoor place without direct airflow from a heating / cooling device, and not be exposed to dripping or splashing
- RDF3… / RDF400…: In case of limited space in the conduit box use the mounting bracket ARG70.3 to increase the headroom by 10mm
- Before removing the front cover, disconnect the power supply.
Wiring: See the mounting instructions enclosed with the thermostat:
- M3076… for RDF3…, RDF4… ; M3063 for RDF600… .
- Wiring, protection and earthing must be installed in compliance with local regulations.
Warning
No internal line protection for supply lines to external consumers (Q1, Q2, Q3, Yxx)
Risk of fire and injury due to short-circuits!
- Adapt the line diameters as per local regulations to the rated value of the installed overcurrent protection device.
- Use only valve actuators rated for AC 230 V on RDF300… / RDF400… / RDF600..
- The AC 230 V mains supply line must have an external fuse or circuit breaker with a rated current of no more than 10 A.
- Isolate the cables of SELV inputs X1-M/X2-M if the conduit box carries AC 230 V mains voltage.
- Inputs X1-M or X2-M of different units (e.g. summer/winter switch) may be connected in parallel with an external switch. Consider overall maximum contact sensing current for switch rating.
- No metal conduits
- No cables provided with a metal sheath
- Disconnect from supply before opening the cover
Commissioning
- Set the thermostat application via the DIP switches before snapping the front panel on the mounting base.
- After power is applied, the thermostat carries out a reset during which all LCD segments flash indicating that the reset was correct. After the reset, which takes about 3 seconds, the thermostat is ready for commissioning by qualified HVAC staff.
- The control parameters of the thermostat can be set to ensure optimum performance of the entire system (see basic documentation P3076).
Note: After powerfail the thermostat restarts in the same mode as before.
- Control sequence: The control sequence may need to be set via parameter P01 depending on the application. The factory setting for the 2-pipe application is “Cooling only”; and “Heating and Cooling” for the 4-pipe application.
- Compressor-based application: When the thermostat is used with a compressor, the minimum output on-time (parameter P48) and off-time (parameter P49) for Y11/Y21 must be adjusted to avoid damaging the compressor and shortening its life.
- Calibrate sensor: Recalibrate the temperature sensor if the room temperature displayed on the thermostat does not match the room temperature measured (after min. 1 hour of operation). To do this, change parameter P05.
- Setpoint and range limitation: We recommend to review the setpoints and setpoint ranges (parameters P08…P12) and changing them as needed to achieve maximum comfort and save energy.
Disposal
The device is considered electrical and electronic equipment for disposal in terms of the applicable European Directive and may not be disposed of as domestic garbage.
- Dispose of the device through channels provided for this purpose.
- Comply with all local and currently applicable laws and regulations.
Technical data
Connection terminals
RDF300…/RDF400… /RDF600…
- L, N: Operating voltage AC 230 V
- Q1: Control output “Fan speed 1 AC 230 V”
- Q2: Control output “Fan speed 2 AC 230 V”
- Q3: Control output “Fan speed 3 AC 230 V”
- Y11,Y21: Control output “Valve” AC 230 V (N.O., for normally closed valves), output for compressor or output for electrical heater
- X1, X2: Multifunctional input for temperature sensor (e.g. QAH11.1) or potential-free switch
- M: Measuring neutral for sensor and switch
RDF340…
- G, G0: Operating voltage thermostat AC 24 V
- L: Operating voltage for fan AC 230 V
- Q1: Control output “Fan speed 1 AC 230 V”
- Q2: Control output “Fan speed 2 AC 230 V”
- Q3: Control output “Fan speed 3 AC 230 V”
- Y10,Y20: Control output for DC 0…10 V actuator
- X1, X2: Multifunctional input for temperature sensor (e.g. QAH11.1) or switch
- M: Measuring neutral for sensor and switch
Connection diagrams
RDF300…, RDF400…, RDF600…
- N1: Room thermostat RDF300… / RDF400… / RDF600
- M1: 3-speed fan
- M2: 1-speed fan
- V1…V3: Valve actuator
- E1: Electrical heater
- S1, S2: Switch (keycard, window contact, etc.)
- B1, B2: Temperature sensor (return air temperature, external room temperature, changeover sensor, etc.)
- C1, C2: Compressor
RDF340…
For US installations use Class 2 rated power supplies. For other installations use circuit breakers with rated current of no more than 10 A.
- N1: Room thermostat RDF340…
- M1: 3-speed fan
- M2: 1-speed fan
- V1, V2: Valve actuator
- YR: DC 0…10 signal converter/current valve
- E1: Electrical heater
- S1, S2: Switch (keycard, window contact, etc.)
- B1, B2: Temperature sensor (return air temperature, external room temperature, changeover sensor, etc.)
Dimensions
Dimensions in mm
RDF3… RDF400…
RDF600…
Issued by
© Siemens Switzerland Ltd, 2008 – 2020
Technical specifications and availability are subject to change without notice.
REFERENCE:
DOWNLOAD MANUALS:
Siemens RDF300.02 Flush Mount Room Thermostat Product Specifications Guide
OTHER MANUALS:
Siemens RDF300.02 Flush mount room thermostat Operating Instruction
Siemens RDF300.02 Flush mount room thermostat Product Specifications Guide