The Gira KNX heating actuator, 6-gang, controls heating and cooling cycles. It switches the electrothermic servos on, for example, radiators or underfloor heating manifolds to control the hot water flow. For each channel, up to four 230 V AC servos or up to two 24 V AC servos can be controlled. Depending on the type of device and the programming, this is achieved by a switching correcting variable or by pulse width modulation (PWM). There is a wide range of applications: The actuator is suitable for residences as well as for commercial properties such as office buildings, schools and hotels. The hardware and software of the Gira KNX heating actuator are particularly user-friendly – for an easy and quick start-up. Manual actuation is with the familiar Gira manual actuation concept and start-up is possible without ETS programming. The DRA device is installed on a DIN top-hat rail.