Fan coil PI-controller, 2-/4-pipe with analog outputs

The TLC3-FCR-M is a stand-alone electronic fan coil controller with one control loop option and one PI heating and cooling sequence.

The TLC3-FCR-M2 is designed for 2-pipe modulating fan coil systems and features one NTC temperature sensor input, one external passive input for temperature or open contact, three binary outputs (relays) and one analog output (0-10 VDC). 

The TLC3-FCR-M4 is designed for 4-pipe modulating fan coil systems and features one NTC temperature sensor input, three binary outputs (relays) and two analog outputs (0-10 VDC) for heating and cooling.

A detailed parameterization is possible with the use of a simple configuration routine. The TLC3-FCR-M can be configured using the standard operation terminal. No special tools or software is required.


  • Air only systems: constant or variable air volume systems with three stage fans for single or dual duct systems
  • Air/water systems: fan coil units for 2-pipe or 4-pipe systems, radiator control, chilled ceiling
  • Simple individual room control for hotel rooms, meeting rooms, etc.
  • PID-control of up to two modulating valves for heating and cooling


  • Proven PID controls algorithm reduces room temperature fluctuations and energy consumption
  • Low power energy consumption: < 1W per unit
  • Temperature control for 2-pipe and 4-pipe fan coil systems
  • Automatic fan control for three stage fans
  • Cost saving option with economy functionality and set point limitations
  • Control for modulating heating, cooling and fan only operation modes
  • Password protected programmable user and control parameters
    • Set point range limitation
    • Access control for set points, fan speeds and mode change
    • Access control for heat/cool change and time programs
    • Select your display contents
    • Selectable behavior after return from power failure
  • Temperature display in Celsius or Fahrenheit

Deluxe version

  • Clock and time schedule functions with power failure protection
  • Blue backlight for LCD
  • Infrared remote controller option: with special features for boost and delayed switching on or off


 Item name  Item code  Power   supply   Description
 TLC3-FCR-M2-24  40-100131  24 VAC/DC   

 Fan coil controller with
 1 TI int.
 1 ext. input
 3 DO (relay) fan control
 1 AO (0...10 VDC) PID valve control

 TLC3-FCR-M4-24  40-100132 
 TLC3-FCR-M2-D-24  40-100136
 TLC3-FCR-M4-D-24  40-100137
 TLC3-FCR-M2-230  40-100100  230 VAC/DC  Fan coil controller with
 1 TI int.
 3 DO (relay) fan control
 2 AO (0...10 VDC) PID valve control
 TLC3-FCR-M4-230  40-100104
 TLC3-FCR-M2-D-230  40-100101
 TLC3-FCR-M4-D-230  40-100105

Parameter preset

  -W01  40-100xxx-01  Cooling  only    Add -Wx at the end of the item name
  or -x at the end of item  code to order  preconfigured model



Operation Manual

Install Sheet

Application Notes