Deutsch 
English The RWF50... is primarily used to control temperature or pressure in oil-fired or gas-fired heat generation systems. With appropriate parameterization, the RWF50... can be switched to cooling mode and then controls in the inverted direction of action.
The RWF50.20A9 is used as a compact 3-point step controller without output feedback. It can be switched to a 2-point controller for controlling 2-stage burners using an external switch. The built-in thermostat function switches the burner on and off.
LED symbols on the front indicate the following operating states:
- Burner enable
- Control pulses OPEN or CLOSE for driving the burner air damper with modulating burner control or stage 1 / stage 2 with 2-stage burner control
- 2-stage operating mode
During operation, the digital displays above the buttons show the setpoint (green), the actual value (red) and, during adjustment, the respective parameters.
Mains voltage; mains frequency:
AC 100…240V +/- 10%; 48…63 Hz +/- 10%
Scope of delivery:
Compact universal controller RWF50.20A9
48 x 48 mm - Version with analog input and 3-point output
- Basic version
- 3-point output
- Housing
Further technical information is available on request or directly from the manufacturer.
The RWF50.20A9 is used as a compact 3-point step controller without output feedback. It can be switched to a 2-point controller for controlling 2-stage burners using an external switch. The built-in thermostat function switches the burner on and off.
LED symbols on the front indicate the following operating states:
- Burner enable
- Control pulses OPEN or CLOSE for driving the burner air damper with modulating burner control or stage 1 / stage 2 with 2-stage burner control
- 2-stage operating mode
During operation, the digital displays above the buttons show the setpoint (green), the actual value (red) and, during adjustment, the respective parameters.
Mains voltage; mains frequency:
AC 100…240V +/- 10%; 48…63 Hz +/- 10%
Scope of delivery:
Compact universal controller RWF50.20A9
48 x 48 mm - Version with analog input and 3-point output
- Basic version
- 3-point output
- Housing
Further technical information is available on request or directly from the manufacturer.