RWF50.30A9 | SIEMENS Compact universal controller

The RWF50 is used mainly for controlling the temperature or pressure in oil- or gas-fired heating plants. If the relevant parameters are set, the RWF50 can be switched to cooling modeand then controls in reverse operation. The RWF50 is used either as a 3-position controller without angular positioning feedback or a continuous controller with analog output depending on the version. 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 amodulating burner control, or stage I / stage II when using 2-stage burner control- 2-stage operation