Room temperature control (heating or cooling) in individual rooms and zones by means of:
The room thermostats are delivered with a fixed set of applications. The relevant application is selected:
Note: The functional descriptions for the thermostat can be referred to the basic documentation P3174.
The thermostats support the following applications, which can be configured using the DIP switches on the inner side of the thermostat’s front panel.
Applications for fan coil systems
Applications for Universal systems
Applications for heat pump systems
Product no. | Stock no. | Application | Operating voltage | Control outputs | Suitable for | |
3-pos | ON/OFF | |||||
RDF800 | S55770-T396 | Fan coil, universal heat pump | AC 230 V | 1 1) | 2 1) | Round or square conduit boxes EEU |
RDF800/NF 2) | S55770-T397 | Fan coil, universal heat pump | AC 230 V | 1 1) | 2 1) | Square conduit boxes 2) |
RDF800/VB | S55770-T451 | Fan coil, universal heat pump | AC 230 V | 1 1) | 2 1) | Round or square conduit boxes EEU |
Equipment combinations
Type of unit | Product no. | Data sheet | ||
Cable temperature sensor or changeover sensor, cable length 2.5 m NTC (3 kW at 25 °C) |
| QAH11.1 | 1840 | |
Room temperature sensor NTC (3 kW at 25 °C) | QAA32 | 1747 | ||
Cable temperature sensor, cable length 4 m NTC (3 kW at 25 °C) | QAP1030/UFH | 1854 | ||
Condensation / Dew point monitor | QXA2601 / QXA2602 / QXA2603 / AQX2604 | 3302 | ||
Electromotor ON/OFF actuator | SFA21… | 4863 | ||
Electromotoric 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 |
ON/OFF actuators
Thermal actuator (for radiator valve) | STP..21.. | A6V12986007 | |
Thermal actuator (for small valves 2.5 mm) | STA..21.. | A6V12986007 |
3-position actuators
Type of unit | 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 | |
Electrical actuator, 3-position (for small valve 5.5 mm) | SSD31… | 4861 | |
Electromotor actuator, 3-position (for small valves 5.5 mm) | SAS31… | 4581 |
Note: For the maximal number of actuators in parallel, refer to information in the data sheets of the selected actuators and to this list, depending on which value is lower:
Designation | Product no. / SSN | Data sheet | |
Changeover mounting kit (50 pcs / package) | ARG86.3 | N3009 | |
Single mounting frame, Ivory White (for RDF800/NF only) | ARG800.1 / S55770-T370 | — |
The thermostats consist of the following parts:
The rear of the mounting base contains the screw terminals. Slide the front panel in the mounting base and snap on.
Operation and settings | ||||
Display |
| |||
| ||||
Operational icons: | ||||
+ ̶ | Increment, decrement OR selection | |||
Selection OR move to next items | ||||
Temperature OR parameter values, and etc. | ||||
| Parameter number OR password, and etc. Time clock (12 / 24 hour) ( not valid for standalone versions) | |||
Setpoint mode (temperature only) | ||||
Fan mode OR fan speed mode | ||||
Operating mode | ||||
Setting mode |
Operations | Function | ||||
Touch | to select setpoint value using +/–. | mode; | adjust | temperature | |
Touch | to select fan mode; adjust fan speed using +/ –. | ||||
Touch | to select operating mode; select ON/ECO/OFF using +/ –. | ||||
Touch | to select the INFO screen, display room using | ||||
to select the desired H/C control sequence using +/– if manual H/C changeover (P01 = 2) is selected. | |||||
to display alarms if the | |||||
Touch | for 5 seconds | to select parameter mode (Service/Expert level). |
Setting parameters using the local HMI
Wake up the thermostat by touching the screen display. Factory setting for the Service level password is 00 00.
Entering the Service level
Notes
Entering the Expert level
Configuring parameters
After entering the correct password, the screen displays as follows. Touch
Resetting parameters
The factory setting for the control parameters can be reloaded using P71, by setting the value to ON.
Service level parameters
Parameter | Name | Factory setting | Range | RDF800.. | Dependencies |
Service level | |||||
P01 | Control sequence | 2-pipe: 1 = cooling only 4-pipe: 4 = heating and cooling | 0 = heating only 1 = cooling only 2 = H/C changeover manual 3 = H/C changeover auto 4 = heating and cooling | ü | |
P02 | Operation using room op selector | 1 | 1 = Comfort – Protection 2 = Comfort – Economy – Protection | ü | |
P04 | Unit | 0 | 0 = °C 1 = °F | ü | |
P05 | Measured value correction (for built-in/external sensor) | 0 K | – 5…+5 K | ü | |
P06 | Standard display | 0 | 0 = room temperature 1 = setpoint | ü | |
P08 | Comfort basic setpoint | 21 °C | 5…40 °C | ü | |
P09 | Comfort setpoint minimum | 5 °C | 5…40 °C | ü | |
P10 | Comfort setpoint maximum | 35 °C | 5…40 °C | ü | |
P11 | Economy heating setpoint | 15 °C | OFF, 5…WCoolEco; WCoolEco = 40 °C max. | ü | |
P12 | Economy cooling setpoint | 30 °C | OFF, WHeatEco…40 °C; WHeatEco = 5 °C min. | ü | |
P13 | Electric heater when cooling | ON | ON: Enabled OFF: Disabled | ü | |
P14 | “Screen lock” function | 0 | 0: Unlock 1: Lock 2: Setpoint adjustable | ü | |
P15 | Fan stage in dead zone (Comfort) | 0 | 0 = disabled 1 = low speed (Heat and Cool) 2 = low speed (Cooling only) | ü | |
P16 | Buzzer function | ON | ON: Enabled OFF: Disabled | ü |
Note: Parameter display depends on the selected application and function.
Expert-level parameters with diagnostics and test
Parameter | Name | Factory setting | Range | RDF800.. | Dependencies |
Expert level | |||||
P30 | Heat P-band Xp/switching differential | 2 K | 0.5…6 K | ü | |
P31 | Cool P-band Xp/switching differential | 1 K | 0.5…6 K | ü | |
P33 | Dead zone Comfort mode | 2 K | 0.5…5 K | ü | Appl. *) |
P34 | Setpoint differential | 2 K | 0.5…5 K | ü | Appl. *) |
Parameter | Name | Factory setting | Range | RDF800.. | Dependencies |
Expert level | |||||
P35 | Integral action time Tn | 45 min | 0…120 min | ü | P46 |
P36 | H/C changeover switching point cooling | 16 °C | 10…25 °C | ü | P38, P40 |
P37 | H/C changeover switching point heating | 28 °C | 27…40 °C | ü | P38, P40 |
P38 | Input X1 | 3 = window contact | 0 = — (no function) 1 = room temp ext. sensor/ return air temp (AI) 2 = H/C changeover (AI/DI) 3 = window contact (DI) 4 = dew point sensor (DI) 5 = enable electric heater (DI) 6 = fault input (DI) 10 = presence detector (DI) | ü | P40 |
P39 | Normal position input X1 | 0 (NO.) | 0 = NO. (Normally Open) 1 = NC. (Normally Closed) | ü | P38 |
P40 | Input X2 | 1 = ext. sensor | 0 = — (no function) 1 = room temp ext. sensor/ return air temp (AI) 2 = H/C changeover (AI/DI) 3 = window contact (DI) 4 = dew point sensor (DI) 5 = enable electric heater (DI) 6 = fault input (DI) 10 = presence detector (DI) | ü | P38 |
P41 | Normal position input X2 | 0 (NO.) | 0 = NO. (Normally Open) 1 = NC. (Normally Closed) | ü | P40 |
P44 | Actuator running time Y1/Y2 | 150 s | 20…300 s | ü | P46 |
P45 | Power of electric heater on Y2 (for adaptive temperature compensation | 0.0 kW | 0.0.. 1.2 kW | ü | |
P46 | Output Y1/Y2 | ON/OFF (1) | 0 = 3-position 1 = ON/OFF | ü | Appl. |
P48 | ON time minimum 2-pos output | 1 min. | 1…20 min | ü | P46 |
P49 | OFF time minimum 2-pos output | 1 min. | 1…20 min | ü | |
P50 | Purge time | OFF | OFF: Not active 1…5 min: Active with selected duration | ü | P38, |
P51 | Flow temp limit floor heating | OFF | OFF, 10…50 °C | ü | P38, P40 |
P52 | Fan control | 1 | 0 = disabled 1 = enabled 2 = heating only 3 = cooling only | ü | |
P53 | Fan speeds | 3-speed | 1 = 1-speed 2 = 3-speed | ü | P52 |
P54 | Fan overrun time | 60 s | 0…360 s | ü | P52, Appl. |
P55 | Fan speed switching point high | 100% | 80…100% | ü | P52, P53 |
P56 | Fan speed switching point med | 65% | 30..75% | ü | P52, P53 |
P57 | Fan speed switching point low | 10% | 1…15% | ü | P52, P53 |
P58 | Fan kick start | ON | ON: Enabled OFF: Disabled | ü | P52 |
P59 | On time minimum fan | 2 min | 1…6 min | ü | P52 |
Parameter | Name | Factory setting | Range | RDF800.. | Dependencies |
Expert level | |||||
P60 | Periodic fan kick Comfort | OFF | 0…89 min, OFF(90) | ü | P52 |
P61 | Periodic fan kick Eco | OFF | 0…359 min, OFF(360) | ü | P52 |
P62 | Service filter | OFF (0) | OFF, 100…9900 h | ü | P52 |
P65 | Protection heating setpoint | 8 °C | OFF, 5…WCoolProt; WCoolProt = 40 °C max. | ü | |
P66 | Protection cooling setpoint | OFF | OFF, WHeatProt… 40; WHeatProt = 5°C min. | ü | |
P67 | Fan start delay | 0 s | 0…360 s | ü | P52, P46 |
P69 | Temporary Comfort setpoint | OFF | OFF = disabled ON = enabled | ü | |
P71 | Restore factory setting | OFF | OFF = disabled ON = reload start | ü | |
P77 | Presence Detector Mode | 1: Standard Presence Mode | 1: Standard Presence Mode 2: Hotel Presence Mode | ü | P38, P40 |
Appl: applications
Parameter | Name | Range | RDF800.. | Dependencies |
Diagnostics and test | ||||
d01 | Application number | NONE = (no application) 2P = 2-pipe 2P3P = 2-pipe 3-position 2PEH = 2-pipe with electric heater 4P = 4-pipe | ü | |
d02 | X1 state | 0 = not activated (for DI) 1 = activated (DI) 0…49 °C = current temp. value (for AI) 00 = H/C input shorted 100 = H/C input open | ü | |
d03 | X2 state | 0 = not activated (for DI) 1 = activated (DI) 0…49 °C = current temp. value (for AI) 00 = H/C input shorted 100 = H/C input open | ü | |
d05 | Test mode for checking the Y1/Y2 actuator’s running direction3) | “—” = no signal on outputs Y1 and Y2 OPE = output Y1 forced opening CLO = output Y2 forced closing | ü | P46 |
d07 | Software version | Ux.xx | ü |
This parameter can only be quit when the setting is back at “—“ Press buttons + and – simultaneously to escape.
Mount the room thermostat on a conduit box. Do not mount on a wall in niches or between bookshelves, behind curtains, above or near heat sources, or exposed to direct solar radiation. Mount about 1.5 m above the floor.
Mounting / Dismounting
See the User Manual for the installation instructions enclosed with the thermostat.
WARNING
Wire, protect and earth in compliance with local regulations.
Risk of fire and injury due to short-circuits!
Before powering up: Set DIP switches to select the desired application before power up:
Commissioning method | DIP switches | LCD display | Applications |
Local setup | APP 2P | 2-pipe | |
APP 2PEH | 2-pipe with electric heater | ||
APP 4P | 4-pipe | ||
APP 2P3P | 2-pipe with 3-position output |
After DIP switch setting, complete the installation and power up the thermostat.
Notes
LCD display | Parameter | Range | Factory setting |
|
Control sequence | 0: Heating only 1: Cooling only 2: Manual changeover 3: Auto changeover 4: Heating and Cooling |
2-pipe = 1 4-pipe = 4 |
User operating mode profile | 1: comfort > protection 2: comfort > economy > protection | 1 | |
Selection of ° C or °F | 0: °C 1: °F | 0 | |
Standard display | 0: Room temperature 1: Setpoint | 0 | |
Fan Stage in Deadzone (Comfort mode) | 0: Fan OFF 1: Fan speed 1 Heat / Cool 2: Fan speed 1 Cool only | 0 | |
Functionality of X1 | 0: — No function 1: Ext / Return Temp (AI) 2: H/C changeover (AI/DI) 3: Window open detect (DI) 4: Dew point sensor (DI) 5: Enable electr. Heater (DI) 6: Fault input (DI) 10: Presence detection (DI) |
3 | |
Functionality of X2 | 1 |
LCD display | Parameter | Range | Factory setting |
Operating action of X1 |
Normal Open (NO) Normal Close (NC) |
Normal Open (NO) | |
Operating action of X2 | |||
| – | End of wizard | – |
If more details are required about parameters, refer to basic documentation P3174.
To re-load the factory settings for all parameters, set the parameter P71 to ON. Restart the thermostat after reset. All LCD segments flash, indicating that the reset is correct.
3 seconds later, the thermostat is ready for commissioning by qualified HVAC staff.
Compressor-based application
Calibrate sensor
Setpoint and range limitation
Notes: The functional descriptions for the thermostat can be referred to basic documentation (P3174).
Room temperature out of range
Alarm/Service reminder
Alarm/service | Display | Error code | Type |
Condensation | Con | 4930 | Fault |
Ext fault input 1 | AL1 | 9001 | Fault |
Ext fault input 2 | AL2 | 9002 | Fault |
Clean filter reminder (+/– to remove reminder) | FIL | 3911 | Service |
Internal sensor error | Er1 | Fault | |
EEPROM error | Er2 | Fault | |
Floor heating sensor error | Er3 | Fault |
Heating/cooling manual changeover
If manual heating/cooling changeover is set using P01 = 2, touch the or twice (depending on the alarms) to select heating or cooling mode.
The selected control sequence will start in three seconds.
For additional details, refer to www.siemens.com/bt/disposal.
RDF800, RDF800/NF, RDF800/VB
Application
Example1: With SUA21/3 2-pipe fan coil application
© Siemens Switzerland Ltd., 2019
Technical specifications and availability subject to change without notice.
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