Digital room unit RCD20

The RCD20 digital room unit allows you to easily and comfortably control your heating system from your living room. It is compatible with Seltron heating controllers.

Use

The RCD20 digital room unit is designed to control room temperature in conjunction with a Seltron heating controller. It features a minimalist design and an easy-to-use interface with a large backlit display and a clear keypad.


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TECHNICAL CHARACTERISTICS
Maximum 2 x room units per heating controller WDC, WXD, KXD, KUD, KPD
Maximum 1 x room unit per heating controller CMP, AHC, AHD
Wired connection to the controller
Option to connect an additional temperature sensor
USER FUNCTIONS
Function PARTY - activation of comfort mode
ECO function - activate energy-saving mode
HOLIDAY function - activate holiday mode
The FIREPLACE function – activation of operation for parallel heating, e.g. with a fireplace.
DOMESTIC HOT WATER FUNCTION – one-time, instant domestic hot water heating
DISPLAY OF DATA
Display of actual and set temperature
Display of temperatures measured on the controller
Outdoor temperature display
Display of the temperature of the ester
ASSEMBLY
On the wall

Key features of the RCD20 Digital Room Unit

  • Display of actual and set temperature.
  • Display of measured temperatures on the controller.
  • Set up with a smart device and Bluetooth connection.
  • User functions PARTY, ECO, HOLIDAYS, FIREPLACE and one-time switch-on of the domestic water heating.
  • Large backlit screen.
  • A modern and elegant look.


TECHNICAL DATA RCD20
Communication Modbus, wired connection
Power supply 12 V DC, bus line
Own consumption < 0,02 W
Watch accuracy +/- 1 s (24 h) at 20 °C
Degree of protection IP 20 according to SIST EN 60529
Safety class III according to SIST EN 60730-1
Type of temperature sensors RTD Murata NTC (10 kE)
Housing material PC+ABS thermoplastic
Permissible ambient temperature 0÷40 °C
Storage temperature -20÷65 °C
Product weight 115 g
Number of pieces per packing unit 24 pieces
Dimensions Dimensions of the RCD20 room unit
Seltron controllers supported
WDC series – v3.5r0 and later Yes
Series WXD – v1.1r0 and later Yes
KXD Series – v1.1r0 and newer Yes
KMS Series – v1.2r0 and later Yes
KSF series – v1.2r0 and later Yes
Series CMP25-2 – v3.2r0 and newer Yes
KUD series – v1.3r2 and newer Yes
Series AHC40 – v1.0r0 and later Yes
Series AHD20 – v1.0r0 and newer Yes
Lead Form Test
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NOTICE

Dear customers!

3. 5. 2025 will be a shop, service and warehouse closed.

Thank you for your understanding.