FC020 Fan coil controller, communicative

Fan coil controller, communicative

4 x AI (Pt1000 or potentiometer), 4 x DI,  2 x AO 0..10V, 7 x DO triac 24...230 V AC for thermic or 3-point valves (heating, cooling) and 3-stage fancoil, communication same as FC010, analogue room unit possible


FC020 is a communicative fan coil controller (up to 3 fan stages, thermic or 0...10V  heating and cooling valves, analogue inputs and outputs). It may either work autonomously, or be connected to a primary controller (MiniPLC or SoftPLC) or SCADA (RcWare Vision or any other SCADA which is able to act as Modbus master). For manual intervention and room temperature measuring, an analogue room unit is used.

  • Individual room control for systems with 2 and 4 pipe fancoils

The controller communicates with analogue room unit (a Pt1000 temperature sensor, setpoint shift, fan stage switch) for rooms where the UI... room unit with display is not acceptable. Recommended type is RTF-DP with resistor fancoil switch. 

As an alternative, a communicative room unit UC010 on a dedicated bus (K2+, K2 -) can be used. The room unit reads room temperature, setpoint correction by a knob, and operating status, which is selected by a short  push of the button or in the menu. Measured temperature range is -20 to +50 °C. 

Read and entered values are processed in a PI control algorithm. On the output there are 0..10 V signals for analogue actuators, and 24 V AC PWM modulating sequences for triacs to control the thermic actuators. 

The controllers operate in a non-aggressive environment. No maintenance is necessary. They are mounted with two screws on any flat surface, e.g. fan coil body, or installation  board. The holds can be removed and there may be an optional DIN rail adapter fixed on the bottom of the controller. 

The controller incorporates real time clock with weekly scheduler (6 events per day). The clock switches between the Comfort, Precomfort, and Off operation modes. There are two digital inputs on the controller for presence sensor (access card reader, PIR sensor etc.) and for window contact or dew point sensor (switches to the Off mode). Both NO and NC contact may be used, the selection follows in the configuration software. 

Use RTF.. (analogue unit) or UC01x (communicative unit) as room unit.