Room thermostat with KNX communications, for fan coil units and universal applications

Stock no. BPZ:RDG1..KN

Stock no. BPZ:RDG1..KN

  • Operating modes: Comfort, Economy and Protection

  • 2-position, 3-position, PWM or DC control outputs

  • Automatic or manual fan speed for 1-speed, 3-speed or EC fan

  • 3 multifunctional inputs for keycard contact, external room / return air temperature, heat / cool changeover, operation mode changeover, window contact on/off, dewpoint monitor, electrical heater enabled, fault contact

  • Automatic or manual heating / cooling changeover

  • Adjustable commissioning and control parameters

  • Minimum and maximum setpoint limitation

  • Backlit display

Application selectable:

  • 2-pipe system

  • 2-pipe system with electrical heater

  • 2-pipe system and radiator / floor heating

  • 4-pipe system

  • 4-pipe system with electrical heater (only RDG100KN)

  • 2-stage heating or cooling system




50/60 Hz

Control algorithm

2-point / PI

Ambient temperature, operation

0...50 °C

Setpoint setting range

5…40 °C

Measuring range, temperature

0…49 °C

Switching differential

Heating: 0.5…6 K
Cooling: 0.5…6 K


Bus: KNX (S-Mode und LTE-Mode mit Synco 700)

Analog inputs

External room / return air temperature, Heat / Cool changeover, Operation mode changeover, Window contact on/off, Dewpoint monitor, Electrical heater enabled

Analog inputs, number


Analog input, signal

NTC 3k , Switch

Digital inputs, number


Relay outputs, number


Relay output, switching current

5 (4) A

Mounting position

Wall mounting


Wall mounting with screws

Type of fixing

Wall mounting with screws

Degree of protection


Dimensions (W x H x D)

93 x 128 x 30.8 mm

Product Variants