RDS120 Smart Thermostat Commissioning A6V11214854_enUS_a 11/22/2019 Smart Infrastructure
Table of Contents 1 1.1 1.2 1.3 Summary ................................................................................................. 3 Brief description ............................................................................................... 3 Inbox items ...................................................................................................... 3 Associated Equipment ..................................................................................... 3 2 Installation ............
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 - Flushmount1) 536-994A (Beige) x 149-956 536-994B (White) x 149-956 QAM2030.010 (4’) x 149-915 - Ductmount 1k Ohm at 32 ℉ Ni R 1k Ohm Pt RTD Type 2 Thermistor 0-10 Vdc Datasheet * 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 QFA3212.
Summary Associated Equipment Sensor Type Model Number - Ductmount CO2 1k Ohm at 32 ℉ Ni R 1k Ohm Pt RTD Type 2 Thermistor 1 0-10 Vdc Datasheet * QPM2100 x 149-909 - DuctQPM2102 mount VOC + CO2 x 149-909 - DuctQPM2160 mount CO2 including temperature x(CO2+T) 149-909 * The documents can be downloaded from Siemens US Download Center by specifying the product number as shown in the above table.
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.thermostatrecycle.org, for safe disposal of the old thermostat. 5. Check whether more wires are needed to bring AC 24 V 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 ● ● ● ● A6V11214854_enUS_a 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. AC 24 V 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. For AC 24 V US installations, use Class 2 transformers.
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 Unoccupiedto Comforteven 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 , and then tap . Scroll down and tap Room presence detector. 4.
Presence detection Approach detection 4 Sensor position 1 A6V11214854_enUS_a 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 – – – – ● ● ● ● ● ● ● A6V11214854_enUS_a 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 *) 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. The thermostat restarts. 5. After the restart is completed, tap I/O and then tap Adapt. 6.
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 A6V11214854_enUS_a No.
6 Managing application settings Heating setpoints 18 | 30 No. Application settings Descriptions Factory settings Range Dependencies 7. Comfort heating setpoint Scheduled heating 70 °F setpoint when space is (21 ℃) occupied. This setpoint must be higher than that for Protection. 32…122 °F N/A (0…50 ℃) 8. Economy heating setpoint Scheduled heating 66 °F setpoint during (19 ℃) transition from Unoccupied to Comfort. This setpoint must be higher than that for Protection.
Managing application settings Cooling setpoints No. Application settings Descriptions 12. Comfort cooling setpoint 13. Economy cooling setpoint Range Dependencies Scheduled cooling 75 °F setpoint when space is (24 ℃) occupied. This setpoint must be higher than all the heating setpoints and lower than the cooling setpoint for Protection. 32…122 F (0…50 ℃) N/A Scheduled cooling 77 °F setpoint during (25 ℃) transition from Unoccupied to Comfort.
6 Managing application settings Humidity setpoints No. Application settings Descriptions 17. Comfort humidity setpoint Scheduled 40%RH 0…100%RH Displays only if the output is humidification setpoint configured as when space is Humidifier (no occupied. This setpoint fan). must be higher than that for Protection. 18. Economy humidity setpoint Scheduled 40%RH 0…100%RH humidification setpoint during transition from Unoccupied to Comfort. This setpoint must be higher than that for Protection. 19.
Managing application settings Dehumidification setpoints No Application settings Descriptions Factory settings 21. Comfort dehum. setpoint Scheduled 60%RH dehumidification setpoint when space is occupied. This setpoint must be lower than that for Protection. 22. Economy dehum. setpoint Scheduled 60%RH dehumidification setpoint during transition from Unoccupied to Comfort. This setpoint must be lower than that for Protection. 23. Unoccupied Scheduled dehumidification dehum.
6 Managing application settings Room air quality setpoints No. Application settings Descriptions Factory settings 26. Comfort air quality setpoint Scheduled air quality 900 ppm setpoint when space is occupied. This setpoint must be lower than that for Protection. 27. Economy air quality setpoint Scheduled air quality setpoint during transition from Unoccupied to Comfort. This setpoint must be lower than that for Protection.
Managing application settings Temperature offsets Switchover time adjustment A6V11214854_enUS_a 6 No. Application settings Descriptions 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 No. Application settings Descriptions The minimum off 300 s 41. Changeover delay for time before heating/cooling switching between heating and cooling. 30…600 s 42. HP compressor min. ON time Minimum run time 3 min for compressor(s) in heat pump systems. 0…60 min Minimum off time for 3 min 43. HP compressor compressor(s) in min. OFF time heat pump systems. 0…60 min 44. Heating min. ON time The minimum run time for the heating system. 5 min 3…15 min 45.
Managing application settings A6V11214854_enUS_a No. Application settings Descriptions 52. Humidify (no fan) min. ON time Factory settings 6 Range Dependencies 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.
6 Managing application settings Other settings No. Application settings Descriptions Factory settings Range Dependencies 56. Min.diff.room temp./outs.air temp.f.cool Free cooling will not be allowed if the difference between room temperature and outdoor temperature is less than this value. 0K 0…20 K N/A 57. Off/protection configuration Configures whether the thermostat goes to the protection mode or completely turns off in OFF mode. Off N/A 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 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. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
Issued by Siemens Industry, Inc. Smart Infrastructure 1000 Deerfield Pkwy Buffalo Grove IL 60089 +1 847-215-1000 A6V11214854_enUS_a © Siemens Industry, Inc., 2019 Technical specifications and availability subject to change without notice.
