[. . . ] The selection is maintained until the next switching point is reached or until the operating mode is changed. Menu-driven user settings: 4 main menus available Time of day and day Main menu Submenu Settings Current time of day Current day of week Temperature Main menu Submenu Factory settings ­ heating / cooling Setpoint comfort mode Setpoint economy mode Setpoint frost or overtemperature protection 19 °C 16 °C 5 °C 23 °C 29 °C 35 °C h T 3/12 Siemens Building Technologies HVAC Products Room Temperature Controller REV23 CE1N2264en 23. 04. 2002 Setpoint economy mode remote operation Time switch Main menu Submenu Settings 10 °C 30 °C Selection of day of week, working day, weekend or week Selection of the number of heating or cooling periods, max. 3 Selection of heating / cooling period start and end time T °C Selection of heating / cooling period setpoint temperature Absence Main menu Submenu Entry of holidays or periods of absence. 99 days) Temperature setpoint during absence Factory setting 12 °C Menu-driven heating engineer settings Main menu Settings Sensor calibration Setpoint limitation Optimum start control for first heating period (in unit of time per 1 °C) 2-position control PID mode, self-learning PID mode with a switching cycle of 6 or 12 minutes CAL / Periodic pump run Off / On Operating mode heating / cooling Temperature setpoints In the automatic operating modes, temperature setpoints can be individually adjusted for every comfort period and for the continuous operating modes. [. . . ] Set the start of the holiday / day of week), the duration and the temperature period (day of departure/ setpoint ( ) during your absence. This will enable the controller to maintain the required temperature for a period of up to 99 days. Every midnight, the counter subtracts one day. 2264Z01 5/12 Siemens Building Technologies HVAC Products Room Temperature Controller REV23 CE1N2264en 23. 04. 2002 When the holiday period is over and the counter reads 00, the controller will resume the operating mode selected last. Remote operation Using a suitable remote operating device, the controller can be switched to an inde. Changeover is accomplished by the pendently adjustable economy temperature making of a potentialfree contact connected to terminals T1 and T2. When the contact opens, the operating mode selected last will be resumed. Operation according to the setting made on the controller T1 2252Z05 Continuously remote operation economy temperature T1 2252Z06 T2 T2 Remote operating devices Factory settings Suitable remote operating devices: telephone modem, manual switch, window switch, presence detector, central unit, etc. Switching times Operating mode Temperatures in ° C 1st period 2nd period 3rd period Block / weekdays 1-5 Mo-Fr 6-7 Sa-Su 1-7 Mo-Su 1-7 Mo-Su 1-7 Mo-Su 1st period 2nd period 3rd period 06. 00 08. 00 11. 00 13. 00 17. 00 22. 00 19 23 20 23 21 23 16 29 07. 00 23. 00 00. 00 24. 00 19 23 19 23 16 29 Auto 00. 00 24. 00 16 29 00. 00 24. 00 5 35 10 30 Absence Factory settings heating engineer level 12 30 Setpoint limitation PID mode, self-learning Optimum start control Periodic pump run Off Heating active 6/12 Siemens Building Technologies HVAC Products Room Temperature Controller REV23 CE1N2264en 23. 04. 2002 Heating engineer level Accessing To access the heating engineer level, keep the warmer and colder buttons depressed and simultaneously roll the roller selector away from the display and then toward the display. If the displayed temperature does not correspond to the effective room temperature, the temperature sensor can be recalibrated (recalibration to be made on the heating engineer level). The displayed temperature can be matched to the effective room temperature in increments of 0. 2 °C (max. Minimum setpoint limitation of 16 °C prevents undesired heat transfer to neighboring apartments in buildings with several heating zones. Optimization brings forward the switch-on point of the first heating period such that the adjusted setpoint will be reached at the desired time. The setting depends on the type of controlled system, that is, on heat transmission (type of piping system, radiators), building dynamics (building mass, insulation), and heat output (boiler capacity, flow temperature). Optimum start control is switched off at Example with an actual room temperature of 18 °C and a setpoint of 20 °C: Sensor calibration CAL Limitation of setpoint Optimum start control T °C 20 19 18 17 16 Pon TR x T 1st heating period 2264D03 Start - 4h 1/2h/°C - 2 h 1h/°C 1/4h/°C t -3 h - 1½ h -¾ h -2h -1h - ½h -1h - ½h - ¼h (slow controlled system) (medium controlled system) (fast controlled system) (no impact) - 1h Optimum start controll Off T t Temperature (°C) Forward shift of switch-on point (h) TRx Pon Actual value of room temperature Starting point of optimum start control Control The REV23 is a 2-position controller providing PID mode. The room temperature is controlled through the cycling switching of an actuating device. The controller generates the positioning signals depending on the deviation of the adjustable setpoint from the actual value acquired by the built-in temperature sensor. The rate of response to the deviation depends on the selected control algorithm: Self-learning mode The controller is supplied with an active self-learning operating mode, enabling it to automatically adapt to the controlled system (type of building construction, type of radiators, size of the rooms, etc. ). [. . . ] ambient temperature Humidity Storage and transport Climatic conditions Ambient temperature Humidity Mechanism Incl. 1 min AC 24. . . 250 V 6 (2. 5) A II to EN 60 730-1 NTC 10 k ±1 % at 25 °C 0. . . 50 °C max. 10 min 5. . . 29 °C 5. . . 29 °C 5. . . 29 °C (factory setting 5 °C) 0. 2 °C 10 min 0. 1 °C 0. 2 °C 1 min 89/336/EEC 73/23/EEC N474 Norms and standards EN 60 730-1 EN 50082-1 EN 50081-1 class 3K3 to IEC 60 721-3 5. . . 40 °C < 85 % r. h. [. . . ]