Digital room units RCD3 | RCD4

Room units RCD3 and RCD4 allow for a simple and comfortable heating system operation from your workspace. They are compatible with Seltron heating controllers. For a clear data display, the RCD2 room unit is equipped with a large backlit LCD display with automatic backlight adjustment according to the illumination of the room.

Product range:


Party function
Use the PARTY function to turn on heating at the desired comfort temperature. After the configured time has passed, the operation switches to the current time programme. The duration can be changed freely for all user functions.
ECO function
Use the ECO function to activate the heating function according to the lowenergy temperature.
Holiday function
For longer absences, you can set room heating or cooling to the holiday time temperature by means of the HOLIDAY function. The latter is preset to 12°C and can be freely changed. The HOLIDAY function can be terminated by setting the date up to which the function shall be active..

Option of selecting the master room unit for the central control of all six temperature zones

Option of defining the first room unit as the “MASTER” unit allows the settings to be carried out only at one room unit whereas these apply to all other slave room units. That way we avoid a painstaking configuration of identical settings on several room units. The ZCE zone controller provides three autonomy levels of slave room units. The setting we select depends on the freedom we want to leave to the user in controlling individual zones.

Solution for a smooth communication signal flow between the room unit and the controller

Communication with wireless room units is often difficult due to the fact that the junction boxes are flush-mounted and made of metal sheet that prevents a smooth flow of the radio signal. For the ZCE controller, we enabled the installation of the transmitter outside the junction box housing. This ensured a smooth communication between the controller and wireless room units.

The RCD room unit is a powerful device for the management of the heating system from your living room. It is compatible with Seltron zone heating controllers.
Option of connecting an auxiliary sensor    
Possibility of a wired connection with the zone controller   
Possibility of a wireless connection with the zone controller  
Large backlit display