Data Sheet for Product

ManualsBrandsSiemens ManualsThermostats (temperature controller with sensor)Smart Thermostat RDS120-B Technical Instructions

A6V11727426

Smart Infrastructure

06/20/2019

Smart Thermostat

RDS120-B Submittal Sheet

Advanced cloud connected thermostat for light commercial and residential

applications

● Bacnet over IP Certified

• Controls conventional HVAC systems up to 3H/2C and heat pumps up to 4H/2C

● Easy-to-read, backlit, auto-dimming 3.5-inch, color, LCD touchscreen

● Intuitive remote user control using Apple iOS and Android mobile phone

applications

● One-touch green leaf button to maximize energy efficiency

● Built-in Volatile Organic Compounds (VOC) sensor enables ventilation strategies

for optimum indoor air quality

● Built-in humidity sensor

● Built-in occupancy sensor enables occupancy control

● Easy-to-program user schedule

Summary of content (4 pages)

PAGE 1
Smart Thermostat RDS120-B Submittal Sheet Advanced cloud connected thermostat for light commercial and residential applications ● • ● ● ● ● ● ● ● A6V11727426 06/20/2019 Bacnet over IP Certified Controls conventional HVAC systems up to 3H/2C and heat pumps up to 4H/2C Easy-to-read, backlit, auto-dimming 3.
PAGE 2
Thermostat Highlights ● ● ● ● ● ● ● ● ● Easy to understand tri-level air quality indication: “Good”, “Okay”, “Poor” Inputs for remote or averaging temperature and humidity sensors Password protected screen lock 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 – Room air q
PAGE 3
Technical data Power Supply Power Supply Operating voltage 24 Vac (±20%) Frequency 48 to 63 Hz Power consumption Max. 9 VA Maximum power supply current 4A current limited Radio Data Radio Parameter Frequency band 2.4 to 2.4835 GHz Maximum radio-frequency power 18 dBm WLAN standard IEEE 802.11b/g/n (HT20) WLAN channel 1-11 Inputs Connections to Multifunctional Inputs X1 - M - X2 Passive temperature sensors - Cable length max.
PAGE 4
Operational Data Setpoint Range 45°F to 95°F (7°C to 35°C) Built-in Room Temperature Sensor Temperature range Accuracy at 77°F (25 ℃) Display resolution 32°F to 122°F ±0.9°F or 0.5℃ 1°F (0.5℃) Built-in Room Humidity Sensor Humidity range Accuracy at 77°F (25°F) Display resolution 0% to 100% ± 5% r.h. 1% Connections Interfaces Micro USB A service port is provided for firmware upgrade Wiring Connections Screw terminals Solid wires or prepared stranded wires: Max.