Siemens Compact Universal Controllers RWF55 Series
The RWF55 is used mainly for controlling the temperature or pressure in oil- or gas-fired heating plants. If the relevant parameters are set, the RWF55 can be switched to cooling mode and then controls in reverse operation.
The RWF55 is used either as a 3-position controller without angular positioning feedback or a continuous controller with analog output depending on the setting. An external switch can be used to change to a 2-position controller for controlling 2-stage burners. The integrated thermostat function switches the burner on and off.
LED symbols on the front indicate the following operating states:
- Burner release
- Control pulses OPEN or CLOSED for driving the burner’s air damper when using a modulating burner control, or stage I / stage II when using 2-stage burner control
- 2-stage operation
During operation, the digital displays above the keys shows the setpoint (green), the actual value (red) and – when making parameter settings – the relevant parameters.
Model Type :
RWF55.50A9
RWF55.60A9
RWF55.51A9*
RWF55.61A9*
* * Remarks : Packaging Variants – 20 pieces per order, without user manual. *
* For other enquiries, please consult JATI
