The worldwide standard for home and building control Saving energy while maintaining a constant room climate Room thermostats that maximize control accuracy for heating, ventilation and air conditioning (HVAC) applications. siemens.
Room thermostats for maximum comfort and energy efficiency With their patented control technology, room thermostats from Siemens have been maintaining a consistent temperature level, and hence a particularly pleasant room climate, for the past 80 years. At the same time, they make it possible to cut energy consumption, for example by using time programs to heat or cool individual rooms to the desired temperature at a configured time. This approach avoids wasting energy on unused rooms.
Energy-efficient room temperature control In order to maintain a constant and comfortable climate, room thermostats have to respond flexibly to many different variables. That is why the room thermostats from Siemens use time programs, window contacts, functions to optimize energy generation in the primary system and much more for precise and reliable control. This makes them an excellent choice for energy-efficient room control. They also offer easy installation and fast commissioning.
Applications at a glance Heat pump From manual operation to automatic control, room thermostats for heat pump applications address the heat pump directly, i.e. they can control and deactivate the pump according to the desired room temperature. This prevents overheating from sun exposure or energy from an external source. In applications with reversing valves, the room 4 thermostats control compressors in heating or cooling mode with automatic or manual changeover.
Variable air volume (VAV) systems Due to their selectable control signals, VAV-compatible room thermostats can be connected directly to a variety of devices, such as VAV boxes, dampers or VAV compact controllers. The wide range of models also makes it possible to change settings using control parameters. As a result, VAV applications can be combined with add-on functions – from electrical heating, radiators and underfloor heating systems to heating/cooling coils.
Universal heating and cooling systems For typical applications with radiators and underfloor heating systems, Siemens offers room thermostats with optimized PID control and self-learning programs. In addition, special variants support applications for hot drinking water and electrical heating systems – with control of up to 16 A. Multifunctional inputs allow to activate functions such as dew point monitoring, window contacts or remote changeover, if desired.
Fan coil systems Fan coil systems are particularly suitable for individual room control in hotels and offices. The wall- or flushmounted room thermostats control 2/4-pipe fan coil applications directly, even with add-on functions such as electrical heating or underfloor heating. Thanks to configurable parameters, the room thermostats can also control different types of drives (On/Off, PWM, 3-point or DC) and fans (1/3-step or DC signals).
The room thermostat portfolio in an overview „Premium“ thermostats RDF800KN RDG* Heating ■ ■ Cooling ■ ■ ■ Heat pumps ■ ■ ■ Fan coils ■ ■ ■ VAV RDF* RDD ■ ■ Domestic hot water ■ * Options with time program available Room thermostats for VAV and heat pump applica Floor heating limitation Dew point monitoring n n n KNX n P/PI n n n n n KNX n n P/PI n n n n n n n n P/PI n n n n n n n n P/PI n n n n n n n n n 2P/PI n n n n n n n 2P/PI
„Standard“ thermostats „Basic“ thermostats RDE* RDH RDU RAA ■ ■ ■ ■ ■ ■ ■ RAB ■ ■ ■ cations Digital display (LCD) n n 2) AC 24 V n B LCD 1 n n n AC 24 V n B LCD 1 1 n n n AC 24 V n B LCD 1 1 n n n AC 24 V n B LCD (2)1) n n n AC 230 V / AC 24 V B LCD Time program buttons (2)1) (1)1) n n n n AC 230 V B LCD Time program buttons (2)1) (1)1) n n n n AC 230 V 1 n n n (1)1) (1)1) (1)1) 1 (1) (1) (1) 1) (3)1) 1) (2)1) 4) 1) O
Heating and/or cooling RDG160KN 10 3) RDF800KN RDG100 line3) RAA41 (X): X = number of outputs Heating and cooling 2-stage heating 2-stage heating or cooling Cooling or heating and electric heating n n n n n n n Premium n n n n n n n n n n n n n n n n R = round flush-mounted box 1) n n n n n n n 4) n 4) 2P/PI RAA11 n n 2P RAA21 n n 2P RAA31 n n 2P 2P/PI n 2P/PI nR 2P/PI Either On/Off, 3-position, PWM or DC signal 2P 2) n n Basic n External setpoint shift via KNX RDD100 n 2P
lications (2)1) 1) (1)1) n (3)1) (2)1) (2)1) (2)1) n n n n n n n n n 2) n 2) AC 230 V AC 24 V AC 230 V n AC 230 V n n LCD n LCD n B LCD n n Additional operation selector/remarks B Background lighting n Analog clock LCD Programming knob and slider B Setpoint button n Setpoint knob Touch screen Power supply External setpoint set Remote or return air temperature sensor Presence detector n n Digital display (LCD), indicator (LED) (2) 1) n User interfaces Oper
Room thermostats for fan coil applications 3- or 1-stage fan 2P/PI n n n n n n n n n n 2P/PI n n n n n n n n nR n n n n n n n 2P/PI nR n n n n n n n 2P/PI n n n n n n n n 2P/PI n n n n n n n 2P/PI n n n n n n 2P/PI n n n n n n n 2P n n n n n n n 2P/PI RDG160KN n n n n n RDG165KN n n n n n RDF600KN n n n n n 2P/PI RDF800KN n n n n n RDF301.
(2) KNX (2) 1) KNX n n n LCD n n n n n AC 24 V n n n LCD n n n n LCD n n n n LCD n LCD n n n n LCD n n n LCD n Additional operation selector/remarks AC 230 V Fan speed switch n Setpoint button n Setpoint knob n Touch screen n Presence detector Background lighting KNX Display (LCD), indicator (LED) (2) 1) Operating mode button (2) Fan speed button KNX Power supply (2)1) 1) Heating/cooling changeover sensor (2)1) Return air temperature sensor
Note
Note
Our world is undergoing changes that force us to think in new ways: demographic change, urbanization, global warming and resource shortages. Maximum efficiency has top priority – and not only where energy is concerned. In addition, we need to increase comfort for the well-being of users. Also, our need for safety and security is constantly growing. For our customers, success is defined by how well they manage these challenges. Siemens has the answers.
