s Operating Instructions en RDG400 RDG400 – the electronic room thermostat that allows you to set the ideal room temperature you want. The thermostat satisfies your individual needs in all operating modes: Comfort, Energy Saving and Protection mode. You can either rely on the factory settings or make adjustments that suit your individual needs. Main display Operating mode Room temperature Heating mode Room temperature in degrees Celsius Electrical heater on Room temperature in degrees Fahrenheit Cooling mode Button lock active Comfort mode Alert indicator Energy Saving mode Condensation in the room Protection mode: Protection against frost Temporary timer function active Indicator for selecting mode Additional user information Operating mode button Protection mode button Rotary knob Changing the room temperature • The setpoint can be adjusted with the rotary knob when Comfort mode is active • Turn the rotary knob clockwise (+) to increase, or counterclockwise (-) to decrease the current room temperature setpoint for Comfort mode The setting range is from 5...40 °C (41 … 104 °F), unless limited by parameters P09 and P10 (parameter Settings, see reverse side). Selecting Comfort mode • Press the operating mode button until symbol appears, indicating that Comfort mode is selected • In Comfort mode, the thermostat maintains the setpoint which can be adjusted with the rotary knob Selecting Protection mode • Press the operating mode button until symbol appears, indicating that Protection mode is selected • In Protection mode, the plant stops operating. If the room temperature falls below 8 °C, heating is switched on however to protect the room against frost The setpoints for Protection mode can be changed by your HVAC installer if desired: Changes made by installer: Frost protection: ________ °C / °F Heat protection: __________ °C / °F Selecting Energy Saving mode In Energy Saving mode, the room temperature is maintained at a lower or higher setpoint, thus saving energy and money. • When selecting Energy Saving mode, make sure parameter P02 is set to 2 • Press the operating mode button until appears • You can change the preselected setpoint by adjusting parameters P11 and P12 (for parameter settings, see reverse side) Important: The setpoint for Energy Saving mode can be set to OFF. This means that the thermostat is deactivated! Risk of frost, i.e. no protective heating or cooling function is provided. Energy saving tips without sacrificing comfort: • Air out rooms for short periods of time only, but properly, with the windows wide open • Never allow the room temperature to exceed 21 °C (70 °F) through heating, and to fall below 25.5 °C (78 °F) through cooling Button lock • To lock or unlock the buttons manually, press and hold the right button for 3 seconds. The buttons can be locked or unlocked in this manner if P14 is set to 2 • If P14 is set to 1, the thermostat automatically locks the buttons 10 seconds after the last adjustment Temporary timer for extended presence or absence The Comfort and Energy Saving modes can be temporarily extended by 0.5 to 9.5 hours using the temporary timer. 1. To set the temporary timer, press and hold the operating mode button for maximum 3 seconds. While holding the button, turn the rotary knob clockwise or counterclockwise as required. a) Turn the rotary knob clockwise to extend Comfort mode. Display: 0....+9:30 b) Turn the rotary knob counterclockwise to extend Energy Saving mode. Display: 0....-9:30 2. Release the operating mode button and the mode is temporarily changed, indicated by . After the temporary timer has elapsed, the thermostat will resume in the new operating mode as follows: Extended Comfort mode New operating mode = Energy Saving Extended Energy Saving mode New operating mode = Comfort • If Energy Saving mode cannot be selected via the operating mode button (P02≠2), Protection mode will be used for extended absence instead! • The temporary timer function is aborted whenever a new setting is made Note: Extended Comfort mode is also possible when an external contact such as a keycard switch or central time clock is active. To enable this function, the time for the extended period must be set via parameter P68. Changing from heating to cooling mode • Depending on the type of plant, the changeover from heating to cooling (or vice versa) is made either automatically by a changeover sensor or a remote changeover switch, or manually by pressing the operating mode button (see parameter P01) • To select cooling or heating manually (P01=2), press the operating mode button until the desired mode appears • With automatic changeover or continuous heating / cooling, symbols / indicate that the system currently operates in heating or cooling mode • With manual changeover, symbol appears, indicating that the system currently operates in heating or cooling mode Control parameters To change control parameters, proceed as follows: 1. Press both buttons simultaneously for at least 3 seconds. 2. Release them and, within 2 seconds, press and hold the right button again for 3 seconds. The display shows P01. 3. Select the required parameter by turning the rotary knob. 4. Press button (OK). The current value of the selected parameter starts blinking and can be changed by turning the rotary knob. 5. Press button (OK) to confirm the adjusted value, or (Esc) to cancel the change. 6. If you wish to adjust additional parameters, repeat steps 3 through 5, or press (Esc) to leave the parameter setting mode. Parameter list No. Parameter name Default value Setting range Adj. P01 Control sequence Single-duct / single-duct & H/C coil: 1 = cooling only 0 = heating only 1 = cooling only 2 = H/C changeover, manually 3 = H/C changeover, auto P02 Mode selection via operating mode button 1 1 = Comfort / Protection mode 2 = Comfort / Energy Saving / Protection mode P04 Selection of °C or °F Depends on wizard setting 0 = °C 1 = °F P05 Sensor calibration 0.0 K (0.0 °F) – 3...3 K (– 6...6 °F) P06 Standard temperature display 0 0 = Room temperature 1 = Setpoint P07 Additional display information 0 0 = --- (no display) 1 = ˚C and ˚F P08 Comfort basic setpoint 21 °C (70 °F) 5...40 °C (41…104 °F) P09 Minimum setpoint limitation in Comfort mode 5 °C (41 °F) 5...40 °C (41…104 °F) P10 Maximum setpoint limitation in Comfort mode 35 °C (95 °F) 5...40 °C (41…104 °F) P11 Setpoint for heating in Energy Saving mode (WheatE-saving) 15 °C (59 °F) OFF, 5 °C…WcoolE-saving (OFF, 41 °F…WcoolEconomy) P12 Setpoint for cooling in Energy Saving mode (WcoolE-saving) 30 °C (86 °F) OFF, WheatE-saving…40 °C (OFF, WheatEconomy…104 °F) P14 Button lock 0 0 = disabled 1 = automatically 2 = manually The control parameters displayed depend on the DIP switch settings made Siemens Switzerland Ltd. Subject to change B3182en 2014-10-20 Next >