Owner's Manual

ManualsBrandsREGIN ManualsRoom ControllerREGIN RC-CDFO Pre Programmed Room Controller with Display Communication and Fan Button

Rev. A

RC-CDFO

Pre-programmed room controller with

display, communication and fan button

RC-CDFO is a complete pre-programmed room

controller from the Regio Midi series intended to control

heating and cooling in fan-coil systems.

✓ Communication via RS485 (Modbus, BACnet or

EXOline)

✓ Quick and simple configuration via Application

Tool

✓ Easy installation

✓ On/Off or 0...10 V control

✓ Backlit display

✓ Input for occupancy detector, window contact,

condensation sensor or change-over function

✓ Supply air temperature limitation

Application

The Regio controllers are suitable for use in buildings

requiring optimum comfort and reduced energy

consumption, such as offices, schools, shopping centres,

airports, hotels and hospitals etc.

Function

RC-CDFO is a room controller in the Regio series. It has a

button for three-speed fan control (fan-coil), display, as

well as communication via RS485 (Modbus, BACnet or

EXOline) for systems integration.

Sensor

The controller has a built-in room temperature sensor. An

external sensor for room temperature, change-over or

supply air temperature limitation can also be connected

(PT1000).

Actuators

RC-CDFO can control 0...10 V DC valve actuators and/

or 24 V AC thermal actuators or On/Off actuators with

spring return.

HEAD OFFICE SWEDEN

Phone: +46 31 720 02 00

Web: www.regincontrols.com

E-mail: info@regincontrols.com

RC-CDFO

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Summary of content (8 pages)

PAGE 1
Rev. A RC-CDFO Pre-programmed room controller with display, communication and fan button RC-CDFO is a complete pre-programmed room controller from the Regio Midi series intended to control heating and cooling in fan-coil systems. ✓ Communication via RS485 (Modbus, BACnet or EXOline) ✓ Quick and simple configuration via Application Tool ✓ Easy installation ✓ On/Off or 0...
PAGE 2
Flexibility with communication RC-CDFO can be connected to a central SCADA system via RS485 (EXOline or Modbus) and configured for a specific application using the free configuration software Application Tool. The buttons on the controller enables easy setting of parameter values using a parameter menu shown in the display. The parameter values are changed with the INCREASE and DECREASE buttons and changes confirmed with the Occupancy button.
PAGE 3
Operating modes There are five different operating modes: Off, Unoccupied, Stand-by, Occupied and Bypass. Occupied is the preset operating mode. It can be set to Stand-by using the parameter menu in the display. The operating modes can be activated via a central command, an occupancy detector or the Occupancy button. Off: Heating and cooling are disconnected. However, frost protection is still active (factory setting (FS))=8°C). This mode is activated if a window is opened.
PAGE 4
The heating coil connected to UO1 will activate only if the coil on UO2 cannot fulfill the heating requirement by itself. Note that Regio has no input for monitoring fan status or overheating of the heating coil. These functions must instead be supplied by a SCADA system. Setpoint adjustment When in mode Occupied, the controller operates using a heating setpoint (FS=22°C) or a cooling setpoint (FS=24° C) that can be changed using the INCREASE and DECREASE buttons.
PAGE 5
output will then be set to 100 % for a set time (1...10 s) when the fan is set to run at its lowest speed when starting from an off position. In this way, the starting torque is exceeded. After the set time has elapsed, the fan will return to its original speed. Relay module, RB3 RB3 is a relay module with three relays for controlling fans in fan-coil applications. It is intended to be used together with RC-...F... model controllers from the Regio range. For more information, see the instruction for RB3.
PAGE 6
Technical data Supply voltage 18...30 V AC, 50...60 Hz Internal consumption 2.5 VA Ambient temperature 0...50°C Storage temperature -20...+70°C Ambient humidity Max 90 % RH Protection class IP20 Communication RS485 (EXOline or Modbus with automatic detection/change-over, or BACnet Modbus 8 bits, 1 or 2 stop bits.
PAGE 7
Setpoint settings via Application Tool or in display Basic heating setpoint 5...40°C Basic cooling setpoint 5...50°C Setpoint displacement ±0...10°C (FI=±3°C) Dimensions 60 95 68 28 [mm] Wiring Terminal Designation Function 10 G Supply voltage 24 V AC 11 G0 Supply voltage 0 V 12 DO1 Output for fan control I 13 DO2 Output for fan control II 14 DO3 Output for fan control III 20 GDO 24 V AC out common for DO 21 G0 0 V common for UO (if using 0...
PAGE 8
32 DI1 Input for occupancy detector, alt. window contact 33 DI2/CI Input for Regin’s condensation sensor KG-A/1 alt. window switch 40 +C 24 V DC out common for UI and DI 41 AGnd Analogue ground 42 A RS485-communication A 43 B RS485-communication B Application examples Condensation sensor RS485 Temperature sensors Modbus TCP/IP EXOline BACnet EX8282 RC-C...