2
Siemens Industry, Inc.
A6V11727385
Smart Infrastructure
06/20/2019
Thermostat Highlights
● Built-in VOC sensor senses wide range of offending organic odors that contribute to stale
air and drives ventilation control
● Easy to understand tri-level air quality indication: “Good”, “Okay”, “Poor”
● Built-in temperature and humidity sensors
● Inputs for remote or averaging temperature and humidity sensors
● One-touch operation for “Away”, “OFF”, “FAN” and “Heating/Cooling”
● Configurable setpoint limits
● Password protected screen lock
● Presence detection using a built-in sensor
● PID algorithm for precise control
● Advanced energy saving control with free cooling capability
● Two multifunctional inputs, optional and configurable for:
– Room temperature
– Operating mode switch
– Window / door contact
– Outside air temperature
– Room air humidity
– Presence detector
– Condensation monitor
– Room air quality
● Six relay outputs for:
– Conventional systems up to 3H/2C
– Heat pumps with up to 2 compressors and 2 stages of auxiliary heat
– Humidity or ventilation control
● Guided Setup Wizard
● Over the air (OTA) firmware upgradable
● Green Leaf button engages occupants in maximizing system efficiency. If scheduled
setpoint is overridden, the green leaf will turn red. One touch will return the system to the
programmed setpoint and the leaf will return to green.
Mobile App Features
● Support iOS and Android smartphones
● Support “Dark” and “Light” background colors on mobile app
● Full 7-day programmable schedule with three modes:
– “Comfort”: comfort settings during occupied periods
– “Economy”: setting for transition between “Unoccupied” and “Comfort”
– “Unoccupied”: setting for periods during absence to maximize energy savings
● Duplicates thermostat HMI on smartphone screen
● User account management
● Monitor temperature and humidity
● Monitor indoor air quality: “Good”, “Okay”, “Poor”
● Data security with Siemens Cloud Computing Platform
Application
The RDS120 is designed to control Heat Pump or Conventional HVAC heating and cooling
applications. It can control up to three stages of heating and two stages of cooling in
conventional systems and up to two compressors and two stages of auxiliary heat in heat
pump systems.
