Data Sheet for Product

ManualsBrandsSiemens ManualsThermostats (temperature controller with sensor)7-Tage Raumtemperaturregler REV24..

CE1N2205en

2019-07-17

Smart Infrastructur

205

7-day

room temperature controller

REV24..

Heating or cooling applications

· 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

· Control of a heating zone

· Possibility to control cooling equipment

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

Summary of content (16 pages)

PAGE 1
s 2 7-day room temperature controller 205 REV24.. Heating or cooling applications · · · · · · 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.
PAGE 2
Functions · · · · · · · · · · · · · · · · · PID control with self-learning or selectable switching cycle time 2-point control 7-day time switch Remote control. Preselected 24-hour operating modes Override mode 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.
PAGE 3
1 Display Change battery Date (day - month - year) Alarm Time of day Heating mode Room temperature (measured) Cooling mode Clear text display line (max. 18 spaces) Weekday (max.
PAGE 4
5 Override button / party mode In the time switch program, this button allows you to quickly change from the active temperature level to the next and back. Thus, you can quickly change to energy saving temperature when you leave the apartment for a short period of time, thus saving energy. The display indicates the change. It is valid only until the next switching time. Activate party mode: Press the button for 3 seconds. Party mode is available only in operating modes and .
PAGE 5
Operating modes Operation with time switch program The controller offers the two time switch programs . and 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.
PAGE 6
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. is displayed along with the end of holiday mode. In holiday mode, symbol Proceed as follows to enter your settings: Set slider to position 15 (start of absence): Press for your holidays.
PAGE 7
Technical features DIP switches DIP switch ON / OFF 1 2 3 4 5 6 7 8 9 10 Sensor calibration On Periodic pump run and anti-lime function On Sensor calibration Off Periodic pump run and anti-lime function Off Setpoint limitation 16…35 °C Start optimization: 1 h/°C Setpoint limitation 3…35 °C Start optimization: ¼ h/°C Temperature display °F Start optimization: ½ h/°C Temperature display °C Start optimization: Off A B C PID self-learning D E (Op. mode: Cooling) PID 6 F G (Op.
PAGE 8
D 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.
PAGE 9
G 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 Heating (factory setting) DIP switch 9 OFF: Press the DIP switch reset button to save the settings. H Radio clock: DIP switch 10 Only applicable to REV..DC (with integrated DCF77 receiver to receive time signal from Frankfurt, Germany)! DIP switch ON: Clock run by controller-internal quartz. DIP switch OFF: Time signal DCF77 from Frankfurt, Germany.
PAGE 10
Access to the expert level Set the program selection slider to RUN. Press and simultaneously for 3 seconds, release the buttons, and and simultaneously for 3 seconds, release , and press for another 3 within 3 seconds press and hold down seconds. This releases the settings at the expert level. is displayed. The display first shows language selection with Code 00. Press the buttons or to navigate the settings. . Confirm settings by pressing Press the operating mode selector to exit the engineering settings.
PAGE 11
Reset User-defined settings: Press , and 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.
PAGE 12
Commissioning · Remove from the batteries the battery transit tab designed to prevent premature activation of the unit: Select desired language by or . Confirm by .
PAGE 13
Technical data General unit data Standards Eco design and labelling directives Product safety Environmental conditions Weight Color Size Supply Batteries (alkaline AA) Life Backup of clock when changing battery (all other data remain in EEPROM) Switching capacity of relay Voltage Current DC 3 V 2 x 1.5 V Approx. 2 years Max. 1 min AC 24…250 V 0.1…6 (2.5) A No internal fuse External preliminary protection with max. C 10 A circuit breaker in the supply line required under all circumstances.
PAGE 14
10 A L T1 T2 L2 L1 N1 AC 24...250 V DC 3 V L 2252A02 Connection diagrams S1 N M1 Y1 N REV24 / REV24DC L Phase, AC 24 … 250 V L1 N.O. contact, AC 24 …250 V / 6 (2.5) A L2 N.C. contact, AC 24 … 250 V / 6 (2.5) A M1 Circulating pump N1 REV24… controller S1 T1 Remote control unit (potential-free) Remote control signal T2 Remote control signal Y1 Actuating device 14 / 16 Siemens Smart Infrastructure REV24..
PAGE 15
Application examples N1 T T T T N1 F1 F2 F2 F1 T T Y2 Y2 M1 2252S01 2252S02 M1 Instantaneous water heater N1 N1 T T Atmospheric gas burner T E1 Zone valve 2252S05 Y4 Y3 2252S03 N1 Cooling unit N1 T Y1 2252S04 M1 Circulating pump with precontrol by manual mixing valve E1 F1 F2 M1 N1 Cooling unit Thermal reset limit thermostat Manual reset safety limit thermostat Circulating pump REV24..
PAGE 16
Dimensions Issued by Siemens Switzerland Ltd. Smart Infrastructure Global Headquarters Theilerstrasse 1a CH-6300 Zug Tel. +41 58 724 2424 www.siemens.com/buildingtechnologies © Siemens Switzerland Ltd, 2008 - 2019 Technical specifications and availability subject to change without notice. 16 / 16 Siemens Smart Infrastructure REV24..