RC-C3O Regio Midi – Pre-programmed room controllers with communication

Regio Midi are controllers with a built-in temperature sensor and an RS485 communication port. Controllers in different rooms and zones can be connected to a bus line enabling communication with a central SCADA system via RS485 (EXOline, BACnet or Modbus).

RC-CD* and RC-C3D* are BTL listed, click here to go to the BACnet International website where you'll find PICS documents and more information.

Specifications

Documentation

Accessories

Specifications

Specifications for RC-C3O
Occupancy button / Forced ventilation	X
3-step fan control	-
EC fan control	X
Setpoint knob	X
Hidden setpoint	-
Built-in CO₂ sensor	-
Output	0...10 V DC or on/off
3 universal outputs	X
Display	-

Specifications for Regio Midi – Pre-programmed room controllers with communication
Supply voltage	18...30 V AC, 50...60 Hz
Power consumption	2.5 VA
Ambient temperature	0...50°C
Storage temperature	-20…+70°C
Ambient humidity	Max. 90 % RH
Communication	RS485 (EXOline or Modbus with automatic detection/change-over, or BACnet). Note: BACnet communication is only an option for RCC models and models with display.
Modbus	8 bits, 1 or 2 stop bits. Odd, even (FS) or no parity.
Communication speed	9600, 19200, 38400 bps (EXOline, Modbus and BACnet) or 76800 bps (BACnet only)
Built-in temperature sensor	0...50°C NTC linearised 15 kΩ
Accuracy	±0.5°C at 15...30°C
Mounting	Room
Protection class	IP20
Analogue inputs (AI)	PT1000, 0...50°C, 0...10 V
Condensation input (CI)	Digital input for condensation detector
Digital inputs (DI)	Closing potential-free contact
Universal inputs (UI)	Analogue input (AI), PT1000 sensor, 0...100°C or digital input (DI)
Digital outputs (DO)	24 V AC, max. 0.5 A
Universal outputs (UO)	Digital output (DO) 24 V AC, max. 2.0 A or analogue output (AO), 0...10 V DC, max. 5 mA
+C power output for DI only	24 V DC, max. 10 mA, short circuit-protected