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Air quality control 

24 | 40 

 

A6V10733807_enUS_c 

 

6  Air quality control 

With its built-in and/or external VOC (Volatile Organic Compounds) sensor, the 
thermostat measures the room air quality and shows the air quality status symbol 
on the local idle screen. In the mobile app, the status is indicated by text. 

If no external VOC sensor is connected or if the input value of the external sensor 
is invalid, only the built-in sensor is used to provide values for the thermostat. If the 
external sensor is connected and can provide valid values with the built-in sensor, 
the thermostat displays the higher value of the built-in and external sensors. 

 

Symbol on the 
local idle 
screen 

Text in the 
mobile app 

Description 

VOC level 
[% of the output 
range] 

 

Good 

The room air quality is 
good 

<50% 

 

Okay 

The room air quality is 
average 

50% ~ 80% 

 

Poor 

The room air quality is 
poor 

>80% 

 

There is a default air quality setpoint for each operating mode in a schedule. It is 
adjustable under 

Advanced Settings

 > 

Optimization

. If the actual VOC level is 

10% higher than the default setpoint for the current operating mode, the ventilation 
function is activated to force air circulation. 

 

 

To ensure that the room air quality is measured accurately when the room is 
closed for a long time, it is recommended to circulate air such as opening a 
window. 

Summary of Contents for RDS120

Page 1: ...RDS120 RDS120 B Smart Thermostat User Guide A6V10733807_enUS_c Smart Infrastructure 12 28 2021 ...

Page 2: ...or password 19 4 5 BACnet HMI access RDS120 B only 19 4 6 Controlling humidifier dehumidifier 20 4 7 Fan control 20 4 8 Turning on off the touch sound 21 4 9 Changing the display language 21 4 10 Naming a room 21 4 11 Changing a time zone 21 4 12 Checking basic information about the thermostat 21 4 13 Software updates 22 5 Green leaf 23 6 Air quality control 24 7 Operating the thermostat from the ...

Page 3: ...change the Green leaf settings 35 8 1 8 Can I change the air quality measurement standard 35 8 1 9 Where can I check the current time on the thermostat 35 8 1 10 Can the thermostat display the time correctly if there is no WLAN connection 36 8 1 11 Can I set the time manually 36 8 1 12 Why is the time displayed incorrectly even though the thermostat is added to a WLAN network 36 8 1 13 How does th...

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Page 5: ...ime Added information on time synchronization and setting valid period after power failure Added information on Free cooling 2 April 2018 Second version Added reference document Submittal Sheet 1 December 2017 First version 1 2 Reference documents Ref Document title Document 1 Mounting instructions Multi lingual version 2 Quick guide en es fr 3 Data sheet en es 4 Commissioning en es 5 Submittal sh...

Page 6: ...between steps in a sequence e g Menu bar Help Help topics Symbol identifications WARNING This is the symbol for hazard It warns of Risks of personal injury Comply with all measures designated by this symbol to prevent injury or death NOTICE This symbol identifies an important notice The i symbol identifies supplementary information and tips It is important to read the documents supplied with or or...

Page 7: ...2 1 Thermostat display overview Icon Description 1 Tap to display detailed information and additional settings 2 Displays whether the system is in an energy optimized mode If the leaf is red predefined settings were changed Tap the red leaf to restore the energy saving mode The leaf turns green 3 Room temperature Normal display ...

Page 8: ...ge If the next switching point is not scheduled after one hour the thermostat still works following the temporary setpoint change until the next switching point is scheduled If the next switching point is scheduled within one hour the thermostat doesn t switch to the scheduled setpoint until the last temporary setpoint change has lasted for one hour If there is network connection but no schedule h...

Page 9: ...ndicated by the text under the icon At home mode is on AWAY mode is active Displays when the system works in an energy optimized mode If the leaf is red it means that some pre defined settings have been changed Tap the red leaf to restore to the energy saving mode The leaf turns green Temperature setpoint slider Icon color changes as setpoint is changed Slider changes to orange when setpoint is mo...

Page 10: ...t been connected to a WLAN network it cannot read the real time from the network and thus cannot follow a schedule In this case it always works under the Comfort mode User overridden Temporary setpoint changes or fan settings are effective if this icon is toggled on Tap to display options such as Operating mode Settings and Advanced Settings Indicates the room air quality is good Indicates the roo...

Page 11: ...ence in room Upon presence it displays information such as room temperature room air quality and relative room humidity If unoccupied it turns off the screen Changes the operating mode from Unoccupied to Comfort If presence is detected in a formerly unoccupied room during a scheduled Unoccupied period the thermostat switches to Comfort automatically until the next scheduled mode starts However thi...

Page 12: ...stat C The height of each cell It is 80 cm 31 in D The area that the PIR sensor can detect Change from Unoccupied to Comfort when an unoccupied room becomes occupied 1 On the Home screen tap tap and then tap 2 If prompted enter the administrator password 3 Tap tap and then tap Scroll down and tap Room presence detector 4 Drag the slider to the right ...

Page 13: ...n The thermostat has a built in approach sensor It can detect someone approaching the thermostat If activity is sensed within 10 cm it will switch from its idle screen to the main home screen with full temperature and setpoint display Sensor position 1 The location of the approach sensor ...

Page 14: ...uilt in sensor the thermostat displays the average value of the built in and external sensors On the home screen the current room temperature is displayed and the temperature setpoint can be changed as desired The units can be selected between C and F the default unit NOTICE After the initial setup of the thermostat the displayed room temperature may not be correct because the temperature sensors ...

Page 15: ...tem into Heating only operation COOL Puts the thermostat and the controlled HVAC system into Cooling only operation OFF Depending on thermostat setup this mode results in Controlled HVAC system turns off completely The thermostat is set to maintain the space within preset limits to avoid frost or heat damage or excessively low or high humidity For more information about the protection setpoint see...

Page 16: ...int is overridden during a time schedule period that change will revert to the scheduled setting during the next transition Override information is visible on both the thermostat screen and the mobile app NOTE See Setting schedules for more details about scheduling Switch the thermostat to work following a schedule From the Home screen tap if is not displayed on the screen NOTE Unlike when a sched...

Page 17: ...then tap Connect Configure current network settings 1 If the thermostat is selected for commercial application On the Advanced Settings page tap and then tap The current network displays on the screen 2 If the thermostat is selected for residential application On the Settings page tap and then tap The current network displays on the screen 3 Tap Network Settings The default DHCP Dynamic host confi...

Page 18: ...r Public area lock as needed 4 Enter a code consisting of at least six numbers and then tap OK 5 Tap OK again to confirm Change to another lock schema 1 If the current lock schema is Screen lock tap any area on the screen enter the screen lock code directly and then tap OK If the current lock schema is Public area lock tap from the screen and then enter the set code 2 From the Home screen tap then...

Page 19: ...Changing or deactivating the administrator password Setting up WLAN connection Changing date and time Changing application settings Changing basic extended configurations and doing factory resets If the thermostat is selected for residential application options related to WLAN connection is accessible from Settings instead of Advanced Settings Create activate administrator password under Advanced ...

Page 20: ...if corresponding external equipment is connected and configured From either the thermostat or the mobile app you can turn off the humidifier dehumidifier or let the thermostat automatically adjust whether and when to turn it on off Control humidifying dehumidifying from the thermostat 1 On the Home screen tap then tap 2 Tap either OFF or AUTO 4 7 Fan control The fan operates as part of the AUTO mo...

Page 21: ...s desired or tap to select a name from the pre set list 3 Tap OK once the room name is entered 4 11 Changing a time zone When there is internet connection the thermostat automatically detects the time zone However it also can be changed manually Change the time zone 1 From the Home screen tap then tap and 2 If prompted enter the administrator password 3 Tap tap tap Adapt and then select an area on...

Page 22: ...ap and then tap Detailed information about the thermostat displays 4 13 Software updates The thermostat receives updates to get the latest functionality enhancements and bug fixes to ensure optimal performance Normally updates occur automatically through WLAN connection It works in the background and has no effect on the thermostat operations NOTE During software updates the system reboot s occurs...

Page 23: ... schedule with presets defined under Advanced Settings Optimization If the thermostat detects one of the following the leaf icon turns to red Touch the red leaf to switch the setting back to an energy optimized operation The room air temperature is 4 or 2 K higher than the default heating setpoint for Comfort or Economy when the heating output is energized The room air temperature is 4 or 2 K lowe...

Page 24: ...n sensor the thermostat displays the higher value of the built in and external sensors Symbol on the local idle screen Text in the mobile app Description VOC level of the output range Good The room air quality is good 50 Okay The room air quality is average 50 80 Poor The room air quality is poor 80 There is a default air quality setpoint for each operating mode in a schedule It is adjustable unde...

Page 25: ...he app scan the QR code using the built in scanner or enter the activation code manually 5 Agree to the terms of use then tap Create A confirmation email is sent 6 Enter the code enclosed in the confirmation email set a password for the account then tap Activate 7 To associate additional thermostats with the account tap Setup Add device and add devices by scanning the corresponding QR codes The ad...

Page 26: ...alues after you exit the demo mode Start the demo mode 1 Tap Start demo mode in the Log in page 2 Tap Start when prompted A small blue triangle is displayed on the upper right corner of the screen in the demo mode To exit the demo mode tap the blue triangle and tap Stop 7 4 Viewing and controlling devices in different locations 7 4 1 Viewing and filtering devices All devices are listed in the Loca...

Page 27: ...ting and or cooling Access the widgets 1 Open the app and select a specific device if more than one is listed An overview of the current device state is displayed If the account is associated with only one thermostat the application automatically opens the temperature control widget 2 If necessary swipe to the right or left to view all widgets Temperature control widget View and change room comfor...

Page 28: ...erating modes Comfort Economy and Unoccupied For more information about these operating modes see Operating modes in a schedule 16 When the schedule for one day is set it can be copied to other days In addition preset setpoints for different modes can be customized Initiate schedule operation From the Home screen of either the local hardware unit or the mobile application tap if is not displayed o...

Page 29: ... from the mobile application NOTE If no humidifier dehumidifier is connected to the thermostat or if the thermostat output is not configured as humidifier dehumidifier humidifying dehumidifying is not available in the app Control humidifying dehumidifying from the mobile app 1 On any widget screen tap and then tap Humidify or Dehumidify 2 Select OFF or AUTO 7 5 Checking device notifications The mo...

Page 30: ...the device for which you want to turn on or off condensation monitoring 3 Drag the slider next to Condensation monitor to the right or left to turn it on or off The function is on by default 7 5 3 Turning on off air filter reminder If a fan operation condition is set during equipment type selection you can set a specified time interval of replacing cleaning the filter from the device or mobile app...

Page 31: ...the location is deleted automatically Change name and address for created locations 1 From the Setup page tap the location to be modified 2 Tap Name and Address to change location name and address respectively 7 6 2 Multiple user management One thermostat can be associated with multiple user accounts Invite your family members or colleagues as device owner or guest to operate the thermostat remote...

Page 32: ...es Revoke user access to the thermostat to disconnect the current user account from the thermostat Revoke user access to a thermostat 1 Tap Setup 2 Select the thermostat to be removed from the user account 3 Tap Revoke access Yes After disconnecting from the current account the thermostat continues to be connected to the cloud and is ready to be linked to new users 7 6 5 Viewing device information...

Page 33: ...Operating the thermostat from the mobile application Viewing mobile app info 7 A6V10733807_enUS_c 33 40 Access Support Tap Info Support ...

Page 34: ...re information about temporary temperature setpoint changes in Thermostat display overview 7 If there is network connection but you have not set the schedule the thermostat operates per the system default schedule For more information about the default schedule see Setting schedules If there is no network connection or valid time the thermostat cannot get schedule information from the cloud It alw...

Page 35: ...eaf settings No you can t The Green leaf settings are defined by the system and are not changeable from user side For more information about Green leaf see Green leaf 23 8 1 8 Can I change the air quality measurement standard No you can t The thermostat decides the air quality status using the VOC levels that are defined by the system and not changeable from user side However you can change the ai...

Page 36: ...ng the built in PIR sensor 11 8 1 14 What should I do if I forget my account s password Reset the password following the on screen instructions in the app 8 1 15 I have registered an account but cannot log in Check the email and ensure that you received an activation email Follow the instructions to activate the account and then log in to the mobile app 8 1 16 I have signed up but have not receive...

Page 37: ...s room temperature is higher than or equal to Min diff room temp outs air temp f cool the thermostat starts cooling When the temperature differential value is below Min diff room temp outs air temp f cool the thermostat stops cooling You can adjust Min diff room temp outs air temp f cool to influence Free cooling 8 2 Technical specifications Please refer to the datasheet of this product for techni...

Page 38: ...ng antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment This equipment should be installed and operated with minim...

Page 39: ...ement 25 administrator passwords 19 create 19 manage 19 G Green Leaf 23 N network add 17 configuration 17 connect 16 push button 17 S screen lock create 18 modify 19 remove 19 software updates 22 T temperature setpoint adjustment 14 unit adjustment 14 touch sound 21 ...

Page 40: ...US_c Issued by Siemens Industry Inc Smart Infrastructure 1000 Deerfield Pkwy Buffalo Grove IL 60089 1 847 215 1000 Siemens Industry Inc 2021 Technical specifications and availability subject to change without notice ...

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