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Siemens RCU50.2 Room Thermostats

Siemens RCU50.2 Room Thermostats

Modulating P-control
∂ DC 0…10 V output for heating or cooling
∂ Automatic heating / cooling changeover (RCU50 and RCU50.1)
∂ Manual heating / cooling changeover (RCU50.2)
∂ Operating modes:
Normal operation, energy saving and standby (RCU50 and RCU50.1)
∂ Operating modes: normal operation and OFF (RCU50.2)
∂ Operating mode selector (RCU50.1)
∂ Active DC 0…10 V input for setpoint shifting (RCU50 and RCU50.1)
∂ Operating mode changeover input for remote control (RCU50 and RCU50.1)
∂ Adjustable minimum limitation for cooling output (RCU50 and RCU50.1)
∂ Operating voltage AC 24 V

Siemens RDG400KN Room thermostats with KNX communications

Siemens RDG400KN Room thermostats with KNX communications

∂ KNX bus communications (S- and LTE-Mode)
∂ Backlit display
∂ PI/P control
∂ Output for VAV box/air damper: DC 0…10 V/3-position/KNX LTE-Mode
∂ Output for heating/cooling coil: On/Off, PWM or 3-position/DC 0…10 V
∂ Output signal inversion as an option (DC 0…10 V ⇓ DC 10…0 V)
∂ 2 multifunctional inputs for keycard contact, external sensor, etc.
∂ 1 DC 0…10 V input for external sensor or feedback of air damper position
∂ Operating modes: Comfort, Economy and Protection
∂ Control depending on room or return air temperature
∂ Optimized operation of supply air fan: Input DC 0…10 V for feedback of air
damper position
∂ Automatic or manual heating/cooling changeover
∂ Minimum and maximum limitation of room temperature setpoint
∂ Minimum and maximum limitation of air flow signal
∂ Adjustable commissioning and control parameters
∂ Commissioning with Synco ACS790, ETS or via local HMI
∂ Integration into Synco; integration into Desigo via group addressing (ETS)
or individual addressing
∂ Integration into third-party system via group addressing (ETS)
∂ Indoor air quality (IAQ) control loop with external CO2 sensor (DC 0…10 V
or KNX LTE- and S-Mode) (RDG405KN)
∂ Operating voltage AC 24 V
∂ Interworking with KNX CO2/temperature sensors (LTE- and S-Mode)

Siemens RDG405KN Room thermostats with KNX communications

Siemens RDG405KN Room thermostats with KNX communications

  • KNX communications
  • Output DC 0…10 V for VAV actuator and auxiliary output ON/OFF, PWM or 3-position or 3-position for VAV actuator and auxiliary output DC 0…10 V
  • 2 multifunctional inputs for keycard contact, external room / return air temperature (1x, QAH11.1, QAA32), heat / cool changeover, operation mode changeover, window contact on/off, dewpoint monitor, electrical heater enabled, fault contact, presence detector
  • 1 input DC 0…10 V for damper position feedback, for CO2 sensor
  • Operating modes: Comfort, Economy and Protection
  • Modulating PI control
  • Control depending on the room or the return air temperature and air quality
  • Automatic or manual heating / cooling changeover
  • Adjustable commissioning and control parameters
  • Minimum and maximum setpoint limitation
  • Minimum and maximum limitation of air flow signal
  • Output signal inversion (DC 0…10 V) as an option
  • Backlit display

Siemens RDF302 Flush-mounted room thermostats with RS485 Modbus communications

Siemens RDF302 Flush-mounted room thermostats with RS485 Modbus communications

RS485 communicative interface in Modbus RTU slave mode
∂ Backlit display
∂ 2P / PI / P control
∂ Outputs for on/off or 3-position control
∂ Outputs for 3-speed or 1-speed fan
∂ 2 multifunctional inputs for keycard contact, external sensor, etc.
∂ Operating modes: Comfort, Economy and Protection
∂ Automatic or manual fan speed control
∂ Automatic or manual heating/cooling changeover
∂ Minimum and maximum limitation of room temperature setpoint
∂ Control depending on the room or the return air temperature
∂ Adjustable commissioning and control parameters via local HMI or RS485
Modbus
∂ Mounting on recessed square conduit box, 60.3 mm fixing centers
∂ AC 230 V operating voltage
∂ User and parameter settings can be retained or restored with power loss