Room thermostat for 2-pipe fan coils or DX-type equipment, return air temperature sensor

Stock no. BPZ:RDF110

Stock no. BPZ:RDF110

  • Output for an on / off valve actuator or compressor

  • Outputs for a 3-speed fan

  • Control depending on the room or return air temperature (with sensor QAH11.1)

  • 2-position control

  • Sensor input either for automatic heating / cooling
    changeover or return air temperature (with sensor QAH11.1)

  • Automatic or manual three-speed fan control

  • Operating modes: normal, energy-saving and standby

  • Operating mode changeover input for remote control



Operating voltage

AC 230 V

Power consumption

8 VA

Positioning signal


Ambient temperature, operation

0...50 °C

Setpoint setting range

5...40 °C

Switching differential

Heating: 0.5…4 K
Cooling: 0.5…4 K

Analog inputs, number


Analog input, signal

NTC 3k

Digital inputs, number


Digital input, contact query

DC 3...6, DC 6...15 mA

Digital input, application

Night setback

Relay outputs

Fan: N.O. contacts, non-floating, Valve: change-over contact, non-floating

Relay outputs, number


Relay output, switching voltage

AC 230 V

Relay output, switching current

4 (2) A


Wall mounting with screws

Type of fixing

Wall mounting with screws

Degree of protection


Dimensions (W x H x D)

102 x 128 x 30 mm