SIEMENS REV24RF-SET Room thermostat Product Specifications Guide

SIEMENS REV24RF-SET Room Thermostat  

Comprising a room temperature controller (with integrated radio transmitter) and receiver with relay outputs

• Mains-independent, battery-operated room temperature controller featuring user-friendly operation, easy-to-read display, and large numbers.
• Self-learning two-position controller with PID response (patented).
• Operating mode selection:
• 7-day automatic mode with max. 3 heating or cooling phases.
• Continuous comfort mode.
• Continuous energy saving mode.
• Protection against frost or overheating.
• Exception day (24 hour operation) with max. 3 heating or cooling phases.
• A separate temperature setpoint can be entered in automatic mode and for the exception day for each heating or cooling phase.
• Heating zone control.
• Possibility to control cooling equipment.
• Advantage for retrofitting, renovating, and reconstruction purposes (completely wireless room unit).

Use

Room temperature control in:

• Single-family and vacation homes.
• Apartments and offices.
• Individual rooms and professional office facilities.
• Commercially used spaces.
• Control for the following equipment:
• Magnetic valves of an instantaneous water heater.
• Magnetic valves of an atmospheric gas burner.
• Forced draught gas and oil burners.
• Electrothermal actuators.
• Circulating pumps in heating systems.
• Electric direct heating.
• Fans of electric storage heaters.
• Zone valves (normally open and normally closed).
• Air conditioning and cooling equipment.

Function

• Bidirectional radio transmission.
• PID control with self-learning or selectable switching cycle time.
• 2-point control.
• 7-day time switch.
• Preselected 24-hour operating modes.
• Override function.
• Holiday mode.
• Party mode.
• Protection function (protection against frost or overheating).
• Information level to check settings.
• Reset function.
• Sensor calibration.
• Heating or cooling.
• Minimum limitation of setpoint.
• Periodic pump run.
• Protection against valve seizure.
• Optimum start control in the morning (P.1).
• Synchronization to radio time signal from Frankfurt, Germany (REV24RFDC).
• Manual override of the receiving relay.

Type summary

Radio set comprising:

• Room temperature controller REV24RF with 7-day time switch, Base and receiver RCR10/868

Radio set comprising

• Room temperature controller REV24RFDC with 7-day time switch,
• Receiver for time signal from Frankfurt, Germany (DCF77), Base and receiver RCR10/868

Ordering
Please indicate the type number as per the “Type summary” when ordering.

Delivery
The controller/transmitter REV24RF.. is delivered with batteries.

Mechanical design

Room controller and base: Plastic casing with an easy-to-read display and large numbers, easily accessible operating elements, and removable base. The casing accommodates the electronics with the DIP switches. The easily accessible battery compartment allows for easy exchange of two 1.5 V alkaline batteries, type AA.

Base and table stand: The base helps attach the room controller to the wall. The supplied table stand allows you to stand the controller anywhere in the room. You can manually attach the table stand without tools.

Receiver: Plastic housing with large operating elements, removable cover and easily accessible terminal block with lots of space to attach the wires. You can mount and wire the unit on most commercially available recessed conduit boxes or directly on the wall. The potential-free changeover contact and the antenna for reception are integrated in the unit.

Display and operating elements

Operating modes

Operation with time switch program: The controller offers two-time switch programs Enter a start time and end time for each comfort phase. Also, comfort temperature setpoint can be freely entered for each comfort phase. Between the comfort phases, the controller always switches to the same, freely selectable energy-saving temperature setpoint

Example with 3 heating phases

Continuous operating modes
The controller also offers three 3 continuous modes comfort mode, energy-saving mode and frost protection mode.

Setpoints

You can freely adjust the setpoints for the weekly and 24-hour operating modes. Setting range for all setpoints without setpoint limitation 3…35 °C. Setting range for all setpoints with setpoint limitation 16…35 °C.

Factory setting

7-day time switch

Three different switching patterns are available to simplify the entry of switching times. These can be assigned as blocks to the corresponding weekdays 1…5 and weekend days 6…7. As a result, you need to adapt the switching times and room temperatures only once for each block.

Enter holidays or absences
You can enter the beginning, temperature, and end of your holidays. At the beginning of the holidays, the controller switches to the desired holiday temperature and returns to the previously set operating mode at the end of the holidays. In holiday mode, a symbol is displayed along with the end of holiday mode.

Proceed as follows to enter your settings:

DIP switches

Sensor calibration DIP switch 1

• If the displayed room temperature does not match the measured room temperature, the temperature sensor can be recalibrated.
• Set DIP switch to ON and press the DIP switch reset button:
• CAL symbol is displayed. The currently measured temperature flashes.
• Press to recalibrate by max. ± 5 °C.
• Set DIP switch to OFF and press the DIP switch reset button to save the settings.

Setpoint limitation DIP switch 2

• The minimum setpoint limitation of 16 °C prevents undesired heat transfer to neighboring spaces in buildings featuring several heating zones.
• DIP switch ON: Setpoint limitation 16…35 °C.
• DIP switch OFF: Setpoint limitation 3…35 °C (factory setting).
• Press the DIP switch reset button to save the settings

Temperature display in °C or °F: DIP switch 3

• DIP switch ON: Temperature display in °F.
• DIP switch OFF: Temperature display in °C (factory setting).
• Press the DIP switch reset button to save the settings

Control behavior DIP switches 4 and 5

The REV24… is a two-position controller with PID control. The room temperature is controlled through cyclic switching of an actuating unit.

• DIP switches 4 ON and 5 ON: PID self-learning
• Adaptive control for all applications.
• DIP switches 4 ON and 5 OFF: PID 6
• Fast-controlled system for applications in locations with large temperature deviations.
• DIP switches 4 OFF and 5 ON: PID 12
• Normal controlled system for applications in locations with normal temperature deviations.
• DIP switches 4 OFF and 5 OFF: 2-point
• For complex controlled systems, a simple two-position controller with 0.5 °C switching difference (factory setting).
• Press the DIP switch reset button to save the settings

Periodic pump run and anti-lime function DIP switch 6

• Only applicable with a controlled circulating pump or valve!
• This function protects the pump or valve during extended OFF periods against possible seizure caused by liming. A periodic pump run is activated every 24 hours at 12 p.m. for three minutes (symbol is displayed during active pump run).
• DIP switch ON: Pump runs ON.
• DIP switch OFF: Pump run OFF (factory setting).
• Press the DIP switch reset button to save the settings.

Start optimization: DIP switches 7 and 8

Optimization advances the switch-on point P.1 to ensure that the selected setpoint is reached at the desired time. The setting depends on the controlled system, i.e., on heat transmission (piping system, radiators), building dynamics (building mass, insulation), and heat output (boiler capacity, flow temperature).

• DIP switches 7 ON and 8 ON: 1 h/°C For slow-controlled systems.
• DIP switches 7 ON and 8 OFF: ¼ h/°C For fast controlled systems.
• DIP switches 7 OFF and 8 ON: ½ h/°C For medium-controlled systems.
• DIP switches 7 OFF and 8 OFF: OFF Off, no effect (factory setting).
• Press the DIP switch reset button to save the settings

The key for the diagram:

• T Temperature (°C)
• t Forward shift of switch-on point (h)
• TRx Room temperature actual value
• Pon Starting point for optimized heat-up time.

Operating mode heating or cooling: DIP switch 9

• The controller can be switched over for cooling applications on DIP switch 9.
• DIP switch 9 ON:  Cooling
• DIP switch 9 OFF: Heating (factory setting).
• Press the DIP switch reset button to save the settings.

Note on synchronization
During startup, REV.DC synchronizes automatically to the time signal (DCF77) from Frankfurt, Germany. Synchronization takes max. 10 minutes. Synchronization restarts each time you press the button or move the program selection slider from the RUN position during these 10 minutes. Siemens recommends setting the desired settings upon startup, and installing the REV.DC in the desired location, and not carry out any actions on the REV.DC for the next 10 minutes. In normal operation, the REV.DC synchronizes to the radio clock every day at 3:10 a.m.

Note on reception
The time signal from Frankfurt is modulated to a radio signal. The reception of this radio signal depends on the distance to Frankfurt, atmospheric conditions as well as the location where the REV..DC is installed. Siemens cannot guarantee that the REV..DC can receive the time signal from Frankfurt at any time and at any place

No reception The radio clock symbol is deactivated and an error message is displayed if the clock was not able to synchronize the time for 7 consecutive days. The controller then runs on the internal quartz.

J DIP switch reset After you change one or several DIP switch positions, you must press the DIP switch reset button to reset the DIP switch. Otherwise, the previous setting remains active

Access to the expert level
Set the program selection slider to RUN. Press simultaneously for 3 seconds, release the buttons, and within 3 seconds press and hold down and   simultaneously for 3 seconds, release, and press for another 3 seconds. This releases the engineering settings. is displayed. The display first shows language selection with Code 00. Press the buttons to navigate the settings. Confirm settings by pressing. Press the operating mode selector to exit the engineering settings.

Code list

Function block	Code	Name	Factory setting	Your setting
Basic settings	00	Language	English
	01	Sensor calibration	off
	02	Switching differential 2-point	0.5 °C
LCD optimization	10	Illumination time	10 seconds
	11	Background brightness	0
	12	Contrast	0
Clock settings	30	Time zone Deviation from time signal in Frankfurt (Central European Time CET) (see Note 1)	0 hours
	31	Start of daylight saving time (see Note 2)	March 31 (03-31)
	32	End of daylight saving time (see Note 3)	October 31 (10-31)

NOTE 1: This entry has no effect if the radio clock either is inactive or not available. The time signal received from Frankfurt is shifted by the value set in Code 30 (time zone) if the radio clock is active.
NOTE 2: The time is always changed over at 2 a.m. on the Sunday preceding the set date if there is no radio clock or if it is inactive. The time change is shifted by the value set in Code 30 (time zone) when the radio clock is active.
NOTE 3: The time is always changed over at 3 a.m. on the Sunday preceding the set date if there is no radio clock or if it is inactive.

Functional check

• Check the display. If there is no display, check the insertion and function of the batteries.
• The operating mode “Continuous comfort mode“ , read displayed temperature.
• REV.. in heating mode: Set the temperature setpoint higher than the displayed room temperature (see operating instructions).
• REV.. in cooling mode: Set the temperature setpoint lower than the displayed room temperature (see operating instructions).
• The relay and, as a result, the actuating device must switch at the latest after one minute.
• Symbol is displayed. If not displayed:
• Check actuating device and wiring.
• It is possible that in heating mode the room temperature is higher than the set temperature setpoint (and lower for cooling mode).
• Set the temperature setpoint for operating mode “Continuous comfort mode“ to the desired value.
• Select the desired operating mode

Reset

Room controller REV24RF..:   User-defined settings:

Temperature controller data: simultaneously for 3 seconds: This resets all temperature and time settings of the program selection slider to default values (see also “Factory settings” in the operating instructions). The expert settings remain unchanged. The clock starts at 12 p.m., the date on 01-01-08 (01 January 2008). During the reset, all display fields are lit and can be checked accordingly.

All user-defined settings plus expert settings
Press the DIP switch reset button , and simultaneously for 5 seconds: After the reset, all factor settings are reloaded. This applies to the program selection slider as well as to the expert settings.

Room controller REV24RF..: Data from faulty receivers
Simultaneously press the “Test and “Learn” buttons on the rear of the REV24RF.. for 1 second. This deletes all data saved from the receivers listed as faulty in Info mode. After this reset, the REV24RF.. indicates that all faulty receivers were deleted.

Room controller REV24RF..: Data from all receivers
Simultaneously press the “Test and “Learn” buttons on the rear of the REV24RF.. for 5 seconds. This deletes the data saved from all receivers. After this reset, the REV24RF.. indicates that no more receivers are connected to the room controller

 Receiver RCR10/868: Data from the room controller
Open the RCR10/886 cover. Simultaneously press the “Learn” and override buttons on the front of the RCR10/868 for 4 seconds. This deletes the data saved from the room controller. LED_1 flashes red. This indicates that no room controller is connected to the receiver.

Room controller REV24RF..:

• Place the room unit in the main living room by considering the following aspects (wall mounting or free placement using a stand).
• The distance to the receiver may not exceed 20 meters or 2 floors.
• Choose the place of installation so that the sensor can capture the air temperature in the room as accurately as possible without being adversely affected by direct solar radiation or other heat or cooling sources (about 1.5 meters above the floor for wall mounting).
• Choose the location to ensure largely interference-free transmission. Observe the following:
  • Do not mount on metallic surfaces.
  • Do not mount near electrical cables and equipment like PCs, TVs, microwaves, etc.
  • Do not mount near larger metallic structures or constructional elements with fine metal meshes such as special glass or special concrete.
• Use the DIP switches to adapt the control behavior.
• Recalibrate the temperature sensor (see “Sensor calibration”) if the displayed room temperature does not match the room temperature measured.

Mounting the room controller REV24RF.. on the wall

• Mount the unit base for the REV24RF.. in the desired location.
• See also “Mounting and commissioning notes”.
• Attach the base first and then slide the unit in the base from top to bottom. You can mount the base on the most commercially available recessed conduit boxes or directly on the wall.
•  When mounting on a wall, make sure there is sufficient clearance above the unit to allow for removing and refitting the unit.

Stand for REV24RF.

• See the installation instructions printed on the stand.
• Place the REV24RF.. in the desired location

Receiver RCR10/868:

• Install the receiver close to the controlled unit if possible.
• Choose the location to ensure largely interference-free reception. Observe the following for mounting the room unit:
  • Do not mount in a control panel.
  • Do not mount on metallic surfaces.
  • Do not mount near electrical cables and equipment like PCs, TVs, microwaves, etc.
  • Do not mount near larger metallic structures or constructional elements with fine metal meshes such as special glass or special concrete.
• Make sure the location is dry and protected against splash water.
• You can mount the unit on the most commercially available recessed conduit boxes or directly on the wall.

Mounting and installation of receiver RCR10/868

• Make sure the receiver is not connected to power during wiring!
• Reconnect the unit to power only after the unit is fully mounted.
• During installation, attach first and wire the unit rear without cover (L/N = mains 230 VAC, LX/L1 = consumer). Slide in the cover from above, swing downward and secure with a screw in the upper portion of the housing.
• For more detailed information, see the installation instructions supplied with the unit.
• Comply with all local regulations on electrical installations.

Warning!

• No internal line protection for supply lines to external consumers.
• 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.
• The AC 230 V mains supply line must have an external circuit breaker with a rated current of no more than 10 A.

Commissioning

REV24RF../SET
The room unit and receiver are interconnected at the factory in the RF/SET. As a result, you do not need to manually connect the two units. However, you can still manually connect the room unit and the receiver as needed. See Point “7. Manually connect REV24RF.. and RCR10/868“.

Switch on the REV24RF
Remove the black transit tabs; the unit starts to operate as soon as you remove the transit tabs on the battery contact. : Select the desired language by . Confirm by

Temporarily mount the RCR10/868
If possible, mount the receiver temporarily (e.g. using dual-sided adhesive tape) to try to identify the best possible location for RF reception. To do this, fully wire the RCR10/868 and close the front cover. See Point “4 Test radio link / identify the best RF reception location

Test radio link / Identify the best RF reception location

• Switch on RCR10/868
• Press the Test button on the rear or the REV24RF.. and place the unit in the best RF reception location. Test the radio link between the room controller and all connected receivers. On the RCR10/868, LED_2 flashes quickly.
• The test turns off automatically after 10 minutes or you can manually end it by pressing one of the following buttons:
• The REV24RF.. shows the quality of the radio link to the connected RCR10/868. If more than one receiver is connected to the same REV24RF.., the display changes every 10 seconds from RCR 01 to RCR 02, etc.
• Select the receiver The selected receiver is tested continuously for 1 minute.
• REV24RF..: The greater the visible bar under numbers 0…9, the better the radio link.
• If the bar is below the number 0, the radio link is not guaranteed. In this case, move the room controller to a different location and shorten the distance between the REV24RF.. and RCR10/868.
• Repeat the test until the quality is sufficient.

• RCR10/868: LED_1 also indicates the radio link quality:
  • Red = Insufficient or no radio link
  • Orange = Good
  • Green = Very good
• If radio link quality is insufficient, shorten the distance between the REV24RF.. and RCR10/868.
• Repeat the test until the quality is sufficient.

Finish mounting the RCR10/868

• Switch off the power.
• Mark the place where the RCR10/868 is located.
• Loosen the wiring as needed.
• Mount the receiver at the marked location, wire it completely, and close the housing.
• Switch on the power.
• The receiver does not require operation after commissioning.

RCR10/868 Manually override the relay

• Press the override button on the receiver to manually override the relay. LED_1 flashes. The override is active for at least 15 minutes. Press again to remove the manual override.
• If the room controller sends a control telegram within these 15 minutes, the telegram is suppressed and executed only after these 15 minutes. This function allows for testing the unit connected to the receiver.
• After the expiration of manual override, the RCR10/868 immediately executes every control telegram received.
• In the event of errors (e.g. empty batteries), the room controller no longer sends control telegrams. Press the override button on the receiver to permanently turn on the connected unit. This function allows you to e.g. run the heating system even if the room controller is off.
• When the room controller resumes operation (e.g. after inserting new batteries), its control telegrams overwrite manual override. Synchronization takes max. 130 minutes.

• On the RCR10/868 press the “Learn“ button for about 4 seconds: The blue LED_2 flashes slowly, and the learning mode is active.
• Also, press the “Learn” button within 20 minutes on the REV24RF.. : The REV24RF.. now either show confirmation that the receiver (RCR 01, RCR02, etc.) is connected or that connection failed.
• Display on the RCR10/868: When the connection is successful, the blue LED_2 briefly flashes quickly, and LED_1 goes from red to green. If the connection failed, the learning mode remains active: The blue LED_2 flashes slowly.
• You can connect max. 15 receivers to 1 room controller. For unique identification of each receiver, the REV24RF.. assigns a number to each RCR10/868 connected. The
• REV then displays this number after a successful learning process.
• The error indication on the REV24RF.. can point out a radio issue with
• one of the connected receivers. Check the error message with.
• Check the receiver as needed.
• LED_1 is red when the RCR10/868 receives a weak, garbled or no control telegram for about. 65 minutes. Check the display on the REV24RF.. for an error message.
• As long as the RCR10/868 correctly receives the control telegrams, the receiver operates normally. If a control telegram is not received correctly, the relay remains in the position last switched.
• As soon as the RCR10/868 again receives a correct control telegram from the REV24RF.., the receiver resumes normal operation.
• The relay switches off if the RCR10/868 receives no or an incorrect control telegram from the REV24RF… This switches off the controlled unit. LED_1 is red.
• As soon as the RCR10/868 again receives a correct control telegram from the
• REV24RF.., the receiver resumes normal operation.
• In the case of power interruption at the RCR10/868, the relay goes to OFF.
• This is a software class A controller designed for use at a normal degree of pollution.

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.
•  Dispose of empty batteries in designated collection points.

Observe the following:

•  Only replace batteries with batteries of the same type and from the same manufacturer.
•  Observe the polarities (+/-).
•  The batteries must be new and free from damage.
•  Do not mix new batteries with used batteries.
•  Store, transport, and dispose of the batteries in accordance with local regulations, guidelines, and laws. Also, observe information from the battery manufacturer

Technical data

Technical data for room controller REV24RF.

Technical data for receiver RCR10/868

Connection diagram for receiver RCR10/868:

L Phase, AC 230 V
N Neutral conductor AC 230 V
Lx Phase, AC 24…250 V
L1 N.O. contact,
AC 24 ….250 V / 16 (2) A
L2 N.C. contact, AC 24 … .250 V / 16 (2) A
M1 Circulating pump
N2 Receiver RCR10/868
Y1 Actuating device

Application examples

• Circulating pump with pre-control by manual mixing valve
• E1 Cooling unit
• F1 Thermal reset the limit thermostat
• F2 Manual reset safety limit thermostat
• M1 Circulating pump
• N1 Room temperature controller (transmitter) REV24RF.
• N2 Receiver RCR10/868
• N3 Room temperature controller (transmitter) REV24RF.
• N4 Receiver RCR10/868
• Y1 3-port valve with manual adjustment
• Y2 Magnetic valve
• Y3 Three-port valve with actuator
• Y4 Two-port valve with actuator

Dimensions

Room temperature controller (transmitter) REV24RF.

Receiver RCR10/868

Issued by

• Siemens Switzerland Ltd.
• Building Technologies Division
• International Headquarters
• Theilerstrasse 1a
• CH-6300 Zug
• Tel. +41 58 724 2424
• www.siemens.com/buildingtechnologies

REFERENCE:

DOWNLOAD MANUALS:

SIEMENS REV24RFSET Room thermostat Product Specifications Guide

OTHER MANUALS:

SIEMENS REV24RF/SET Room thermostat Operating Instruction

SIEMENS REV24RF-SET Room thermostat Product Specifications Guide