Smart Thermostat RDS120-B Commissioning Guide A6V11727391 06/20/19 Smart Infrastructure
Table of Contents 1 Summary ........................................................................................................ 3 1.1 Brief description ................................................................................................................ 3 1.2 Inbox items.......................................................................................................................... 3 1.3 Associated Equipment ....................................................................
Summary Brief description 1 1 Summary 1.1 Brief description Smart Thermostat RDS120 is designed to control the heating/cooling system in apartments, single family homes, dormitories and other residential-type as well as light commercial spaces. Apart from traditional operations performed directly on the hardware unit, remote operations that use a mobile app are also allowed for your convenience. 1.
1 Summary Associated Equipment Sensor Type Model Number 1k Ohm at 32°F Ni R - Ductmount QAM2030.010 (4”) 1k Type 2 0-10 Vdc Ohm Pt Thermistor RTD x Datasheet* 149-915 Outdoor Temperature Sensors QAC22 x QAC2012 149-920 x QAC2030 149-920 x QAC3161 149-920 x 149-920 Cable Temperature Sensors QAP22 QAP2012.150 x 149-918 x QAP1030.200 149-918 x 149-918 Room Humidity Sensors - WallQFA3212.EWSN mount with temperature QFA32SS.EWSN - DuctQFM2160U mount with temperature x(T) x (r.h.
Summary Associated Equipment 1 Replacement Part Siemens Industry, Inc. Smart Infrastructure Description Model Number Orderable Part Number Plastic trim plate and metal mounting plate for 2" × 4" box (1 set) ARG100.
2 Installation 2 Installation Mounting ● ● ● ● ● ● Installing the thermostat The thermostat is designed for wall mounting. The recommended height is 5 feet above the floor. Do not mount the thermostat in recesses, shelves, behind curtains or doors, or above or near heat sources. Avoid direct exposure to sun and drafts. Seal the conduit and/or wall opening, as drafts can affect sensor readings. Observe maximum ambient conditions. 1.
Installation 2 4. Disconnect all the labeled wires and then remove the old thermostat. NOTICE! Do not discard the old thermostat in the trash if it contains mercury. Contact a thermostat recycling organization, for example, www.thermostat-recycle.org, for safe disposal of the old thermostat. 5. Check whether more wires are needed to bring 24 Vac power from the HVAC equipment to the thermostat. If yes, prepare the wires and label them accordingly. 6.
2 Installation Tip: Before installing the power unit, it is highly recommended the labeled wires be connected to the terminals snugly according to the thermostat terminal designations (you may also refer to the picture taken in Step3). Do not overtighten. NOTICE! a) The following illustration is for reference, which may be different from the wiring for your application.
Installation ● ● ● ● Siemens Industry, Inc. Smart Infrastructure 2 Observe local codes regarding wire type, overcurrent protection and ground. For HVAC systems with a single transformer, the RH-RC jumper must remain in place. If separate transformers are used for heating and cooling systems, remove the RH-RC jumper. 24 Vac supply line must have a circuit breaker with a rated current of no more than 4 A. The total current rating should not exceed 3.3 A.
3 Setup wizard 3 Setup wizard When the thermostat is powered up for the first time, a setup wizard displays to guide you through the following procedures: ● Setting a display language ● Setting an administrator password ● Setting up a network connection and choosing the network connection type ● Selecting an equipment type and setting up the details ● Configuring date ● Specifying a name to the location where the thermostat is installed For more details, see the Quick guide.
Presence detection Presence detection using the built-in PIR sensor 4 4 Presence detection 4.1 Presence detection using the built-in PIR sensor By using a built-in presence detection sensor (also called PIR (Passive infrared detector) sensor), the thermostat can detect the space occupancy and then do the following: ● Activate the idle display. When no operations are performed, the thermostat detects whether someone is in the room or not.
4 Presence detection Approach detection Sensor detection range A The width of each cell. It is 80 cm (31 in). B The thermostat. C The height of each cell. It is 80 cm (31 in). D The area that the PIR sensor can detect. To disable the switch from Unoccupied to Comfort even if the room is occupied 1. From the Home screen, tap , tap and then tap . 2. If prompted, enter the administrator password. 3. Tap , tap detector. , and then tap . Scroll down and tap Room presence 4.
Presence detection Approach detection 4 Sensor position 1 Siemens Industry, Inc. Smart Infrastructure The location of the approach sensor.
5 Changing system setup 5 Changing system setup Go to Advanced Settings if necessary to reconfigure initial setup options and change some other default system setup options as desired. Changing basic configurations Changing the basic configurations of the thermostat is to select either Conventional or Heat pump and adjust the basic heating/cooling settings for the selected equipment type. To change the basic configurations 1. From the Home screen, tap , tap and then tap . 2.
Changing system setup 5 – – – – ● ● ● ● ● ● ● Siemens Industry, Inc. Smart Infrastructure Outside air temperature Room air humidity Presence detector Condensation monitor. If the thermostat receives an input from a condensation monitor, it will display a notification on the mobile app. The thermostat does not alter operation based on this input. – Room air quality Change input signal types based on the assigned input type.
5 Changing system setup detected to have worse air quality than the configured room air quality setpoint under the Optimization page. *) If 0 to 10 V is selected as the signal type, a DC 0 to10 V active sensor must be connected with the thermostat. Otherwise, the calculated value may not be accurate. To change the extended configurations 1. On the Advanced Settings page, tap . 2. If prompted, enter the administrator password. 3. Tap and then tap . 4. Tap OK to stop all the thermostat’s applications.
Managing application settings 6 6 Managing application settings NOTE: ● Parameter availability depends on your selected application for the thermostat. ● Numbers marked in the following tables are only for easy readability in this document. They don't represent the parameter numbers in the local thermostat. Multi-functional inputs Siemens Industry, Inc. Smart Infrastructure No. Application Descriptions settings Factory Range settings 1. X1 room Calibrates thermostat 32°F temp. ref.
6 Managing application settings Heating setpoints 18 | 30 Siemens Industry, Inc. Smart Infrastructure No. Application Descriptions settings Factory Range settings Dependencies 7. Comfort heating setpoint Scheduled heating setpoint when space is occupied. This setpoint must be higher than that for Protection. 70°F (21℃) 32…122°F (0…50℃) N/A 8. Economy heating setpoint Scheduled heating setpoint during transition from Unoccupied to Comfort. This setpoint must be higher than that for Protection.
Managing application settings Cooling setpoints Siemens Industry, Inc. Smart Infrastructure 6 No. Application Descriptions settings Factory Range settings Dependencies 12. Comfort cooling setpoint Scheduled cooling setpoint when space is occupied. This setpoint must be higher than all the heating setpoints and lower than the cooling setpoint for Protection. 75°F (24℃) 32…122 F (0…50℃) N/A 13. Economy cooling setpoint Scheduled cooling setpoint during transition from Unoccupied to Comfort.
6 Managing application settings Humidity setpoints No. Application Descriptions settings Factory Range settings 17. Comfort humidity setpoint Scheduled humidification setpoint when space is occupied. This setpoint must be higher than that for Protection. 40%RH 0…100%RH Displays only if the output is configured as Humidifier (no fan). 18. Economy humidity setpoint Scheduled humidification setpoint during transition from Unoccupied to Comfort. This setpoint must be higher than that for Protection.
Managing application settings Dehumidification setpoints Factory Range settings 6 No. Application settings Descriptions 21. Comfort dehum. setpoint Scheduled 60%RH dehumidification setpoint when space is occupied. This setpoint must be lower than that for Protection. 0…100%RH Displays only if the output is configured as Dehumidifier (no fan) or Dehumidifier (fan). 22. Economy dehum. setpoint Scheduled dehumidification setpoint during transition from Unoccupied to Comfort.
6 Managing application settings manually. Changing the setpoint will affect the dehumidification control to verify the functionality. Room air quality setpoints Functions 22 | 30 Siemens Industry, Inc. Smart Infrastructure No. Application Descriptions settings Factory settings 26. Comfort air quality setpoint 900 ppm 27. Economy air Scheduled air quality quality setpoint setpoint during transition from Unoccupied to Comfort. This setpoint must be lower than that for Protection. 28.
Managing application settings Temperature offsets Switchover time adjustment Siemens Industry, Inc. Smart Infrastructure 6 No. Application Descriptions settings Factory settings Range Dependencies 33. Built-in temp. sensor adj. Temperature offset value for the built-in room temperature sensor. 0K -5…5 K Valid only if the built-in temperature sensor is used to measure the temperature. 34. X1 temp. sensor adj. Temperature offset value for the X1 temperature sensor.
6 Managing application settings 24 | 30 Siemens Industry, Inc. Smart Infrastructure No. Application Descriptions settings Factory Range settings Dependencies 41. Changeover delay for heating/coo ling The minimum off time before switching between heating and cooling. 300 s 30…600 s 42. HP Minimum run time compressor for compressor(s) in min. ON heat pump systems. time 3 min 0…60 min Heat pump must be selected as the equipment type. 43. HP Minimum off time compressor for compressor(s) in min.
Managing application settings No. Application Descriptions settings Siemens Industry, Inc. Smart Infrastructure Factory Range settings 52. Humidify (no fan) min. ON time The minimum run 3 min time of a standalone humidifier. This minimum limitation protects the humidifier from short cycling. 0…60 min 53. Humidify (no fan) min. OFF time The minimum OFF 3 min time of a standalone humidifier. This minimum limitation protects the humidifier from short cycling. 0…60 min 54. Dehum.
6 Managing application settings Other settings No. Application settings Descriptions Factory settings Range Dependencies N/A 56. Min.diff.room Free cooling will 0K temp./outs.air not be allowed if temp.f.cool the difference between room temperature and outdoor temperature is less than this value. 0…20 K 57. Off/protectio n configuration Configures Protectio whether the n thermostat goes to the protection mode or completely turns off in OFF mode. Off N/A Protection 58.
Disassembly 7 7 Disassembly The thermostat is designed for maintenance-free operations. Disassembling should only be done after the power supply is off and is only limited to the licensed installers only for disposal purpose. Siemens doesn’t guarantee the user’s safety if the disassembly process is managed by any unlicensed installers. Disassembly 1. Turn off the power supply and then use a screw driver to pry the front module off from the hole at the top of the thermostat. 2.
8 Appendices Technical specifications 8 Appendices 8.1 Technical specifications Please refer to the datasheet of this product for technical specification details. 8.2 Cyber security disclaimer Siemens provides a portfolio of products, solutions, systems and services that includes security functions that support the secure operation of plants, systems, machines and networks.
Appendices EULA 8 radioelectrique subi, meme si le brouillage est susceptible d'en compromettre le fonctionnement. 8.3.2 FCC Regulations (USA) WARNING Modification of this device to receive cellular radio telephone service signals is prohibited under FCC rules and federal law. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules.
Issued by Siemens Industry, Inc. Smart Infrastructure 1000 Deerfield Pkwy Buffalo Grove IL 60089 +1 847-215-1000 Document ID: A6V11727391 Edition: 06/20/2019 © Siemens Industry, Inc., 2019 Technical specifications and availability subject to change without notice.
